Anyone using APRS?

[adventureduo]

We would like to setup APRS in our rig in case something happened to us .. our family/friends will know where we are.

Went to the ham radio outlet today to see what they could do for me my setup (Yaesu 2800m and Baja540c)... and it appeared it was going to be about $300 to do what i wanted. I would need to get a complete kit that included a GPS antenna because they couldn't figure out how to setup a cable for my GPS.

Does anyone know of a way to connect a Ham transmitter to a Lowrance unit? I have the big marine plugs on the back.

Anyone use Byonics stuff? Tinkpak?

Any insight on this project would be greatly appreciated. Im just learning about it.. today is day 1 for me.

[DaveInDenver]

Wouldn't a Kantronics MT1200G do what you need? That's probably the $300 option you mentioned, right? Otherwise you could use any TNC, but then you need a laptop and that interfaces the GPS to the TNC. I thought the MT1200G did all the GPS interfacing to the radio.

[adventureduo]

yep thats the unit they wanted me to buy... $276 bucks with it's own antenna. They didnt have one at the store.. 1 left in San Diego store in the USA. I dont know i didn't think it was gonna be that much $$.

[DaveInDenver]

yep thats the unit they wanted me to buy... $276 bucks with it's own antenna. They didnt have one at the store.. 1 left in San Diego store in the USA. I dont know i didn't think it was gonna be that much $$.
If you have the GPS->laptop part handled, then just a regular old TNC would be less, probably about $200 or so. This is the part that packetizes the data from the laptop for transmission on the radio. It basically plugs into mic plug and speaker output for the RX/TX. The Kantronics unit looked cool because it integrated a GPS chipset into the box.

[adventureduo]

Dave, i think i have decided to pass for the following reason..

My buddy just said his dad was just traveling through Texas about a hour ago and dropped off the tracking because he couldnt hit a digi-repeater. There simply weren't any in his general area. This kind of defeats the purpose in my eyes.

I think i will go with the Spot Satellite messenger. I want the unit to work anywhere, anytime. http://www.findmespot.com/

[ntsqd]

As a point of interest, doesn't your 540 output NEMA (?) sentences? I know some do (my 3000MT does), but where you go from there is beyond me.

[adventureduo]

I have no clue, i have a email into Lowrance to check on tracking. I assume marine use must have something.. since they need to be tracked even moreso than us.

[ntsqd]

Some of the Lowrance's have this output so that they can "talk" to marine autopilot systems. Conceivably that data string could then be broadcast to something that understands it.
How the APRS stuff actually works is not in my knowledge base.

[craig]

It sounds like you went in a different direction, but I'll comment anyway since others might care. I've found 3 common ways to setup APRS.

1. Kenwood D700 (or new flavor) with APRS all built in. Just plug your high-end GPS into it and it will both beacon your position out the radio, and display received APRS data on the GPS.

2. A TNC. GPS plugs into TNC, TNC plugs into radio. The micro-usb can be setup to work this way. The GPS sends the position (NMEA0183) to the TNC, which then sends it out via the radio. The radio receives APRS data, sends them to the TNC, which then translates them into NMEA0183 sentences and sends them to the GPS.

Beacon: GPS->TNC->Radio->airwaves
Receive: Airwaves(APRS)->Radio->TNC->GPS

Again, the GPS must be a high end unit as it needs to support NMEA0183 Input as well as NMEA0183 output. The Garmin 60 and 76 series do this for example. I"m not sure about the unit you have.

3. The original way to do APRS was with a laptop added to the mix. This gets harder to setup, but there are some pretty cool things you can do with a laptop in there. For example, you can plot positions of other APRS beacons in OziExplorer with the OziAPRS software package (I'll be adding this to Overland Navigator next year too).

If everyone in your Expedition Team / Convoy has at least an APRS Beacon on board you can keep track of all of them (no repeater required). This is valuable both as a leader and as a follower. The leader can keep track of stragglers, or if you are following and the leader is beaconing then you can see where he is.

The basic setup here is:

- GPS plugged into the laptop (Any GPS that has a real or virtual COM port and that talks NMEA0183 Output. NMEA0183 Input is not required since you will not be using the GPS to display others locations. You'll use the laptop for that.

- APRS Software such as OziAPRS, xastir, UIView, or one of the many other APRS programs out there.

- Most people also use AGWPE or Packet Engine Pro as a sort of "driver layer" between the software and the TNC. One thing cool about this software is that you can setup AGWPE to be a "Sound Card Packet Engine" which removes the requirement for a TNC to be purchased. AGWPE is free, PE Pro is trial-ware.

- TNC, or use your sound card. I use an Elcom Micro USB TNC+ and don't really know much about using the sound card setup other than that you can do it.

So, at this point, start at the bottom and work your way up:

- Tune your radio to the APRS frequency (2m) 144.390. It is at this point that you wish you bought a dual band radio so you can have one side for talking and one for APRS. :)

- Set the radio up for digital packet use. You'll have to dig around your manual for this one. I *think* that you can skip this step if you use the Soundcard packet as it does this in software. I'm probably wrong on that though. I really only know my setup. I have an ICOM 2720H (New one w/o the problems commonly attributed to this radio).

- Make the cable you need that goes from the TNC to the radio. If you are making a soundcard packet cable you'll need to get directions on how to do this from their website.

- Plug one end of the cable into the digital out of the radio and the other end into the Elcom TNC.

- Plug the USB cable from the TNC into the laptop.

- Install Packet Engine Pro. Tell it about the TNC you just connected.

- Test that the PE Pro, the TNC, and the radio all work by using a simple program to see if you are *hearing* APRS packets. APRS looks kinda like NMEA0183 does. It is plain ASCII text and even kinda makes sense when you see it scrolling by. I forget which program I used to do this.

- Install one of the APRS programs. OziAPRS is fairly quirky. UIView seems to be one of the easier programs to setup, but to be honest I haven't found one that I like using yet. Simply put, they are all too complicated... kinda geeky with so many features crammed into a single small program that you can't figure out how to use it. This is why I'm going to write a plugin for Overland Navigator to do APRS.

[sdlsatcom]

i'm a big fan of the tinytrak, it doesn't require a computer, simple to hook up and hide in the dash. The downfall is that it is one way, that is it will only send aprs data not recieve it

radio<====Tinytrak<====gps

[Angel?]

Does anyone know of a way to connect a Ham transmitter to a Lowrance unit? I have the big marine plugs on the back.

I just sorted this out today in my 540c / ham radio install.

The 540c GPS unit has a "Power/Data" cable (terminates in a blue connector which plugs into the blue "Power/Data Socket "on the back of unit) that has a [sub]cable labled as "Data cable" [page 19 of the manual]. The data cable is NMEA 0183 compliant, and has 4 wires to communicate with another NMEA 0183 compliant device, such as a TNC (or a ham radio that has a built-in TNC). The wires are orange data into the 540c, Yellow data out of the 540c, bare or "shield" common ground, and blue unused [page 18 of the manual]. You will need to splice the three wires to the corresponding wires connected to the TNC.

The use of APRS between a team on the trail would be wicked cool, as you can transmit your position and others could see your poisition on their unit, as well as vice versa. Of course, that would require those other units to use APRS also.

Right now, I am working to sort out if the 540c's display of other mobile unit positions can "travel" on the map, vs. being displayed as point-in-time waypoints.

[bc_fjc]

i'm a big fan of the tinytrak, it doesn't require a computer, simple to hook up and hide in the dash. The downfall is that it is one way, that is it will only send aprs data not recieve it

radio<====Tinytrak<====gps

I use the Byonics Micro-Trak 8000, works great

[BlackX]

Reviving a seriously old thread.

I'm thinking about going the APRS route. I have a Garmin GPSmap 60csx and a Yaesu 7900. I'm still trying to figure out exactly what cables to use. seems hams very often make their own components. Anyone have any good advice on what cables I might need?

It was mentioned earlier that digipeaters could be hard to come by in remote areas. I located a map of digipeaters here. http://wa8lmf.net/APRSmaps/NorthAmericaSmall.htm

There are definitely some holes in the coverage, but I think that it's still a good thing to have if you're a ham. Friends or family can follow you on the web and there's also the ability to track others in your group.

[1leglance]

I kind of gave up on APRS since I use the SPOT for friends and family and I don't know anyone else local to me that uses APRS on their rig.

I still like the idea of tracking other rigs in my group when out and about on a trail run but it just hasn't become a "need" thing. Also I think we are all waiting for someone else to be the first to jump in :)

[proto]

Well, it's been a few years since I last messed with APRS, but since responses are limited so far, I'll jump in and spill what I know. (Then the knowledgeable people can set us both straight. :) )

To hook your radio to your GPS you need some intervening hardware called a TNC (terminal node controller). Some radios now have this built in, but the FT-7800 didn't, and I'm assuming the FT-7900 is the same way. Basically, the TNC gets information from your GPS, encodes it as APRS data packets, then sends it on to your radio for transmission.

Take a look at the TinyTrak (http://www.byonics.com/tinytrak/) unit from Byonics or the OpenTracker (http://www.argentdata.com/products/otplus.html) from Argent Data. Undoubtedly there are others.

Both of these units can do more than just send your position: you can send voltage, temperature, and weather telemetry, turn the radio power on and off, and control various other aspects of the system, etc. (I always thought it would be fun to build a super-car-alarm for my rig that alerted me over 2 meter handheld. Maybe include a remote-control function to shut down the engine, flash the lights, and turn on the windshield wipers. :D )

Oh, if you want to see other ham's APRS info on your GPS display, both the TNC and the GPS need to support that. Expect to spend $50 or so for an assembled basic unit; less if you don't mind soldering a kit together, more if you want something fancy.

As far as cables: you'll need two, one from the radio to the TNC, another from the TNC to the GPS. The TNC makers might have them, but making your own isn't too bad. The Yaesu data port is a standard mini-DIN-6 (you can cut up a PS/2 computer keyboard extension cable for that). The TNCs use a standard DB-9. Dunno about your GPS.

It's a fun project, and pretty useful. Good luck!

[xtatik]

I've also looked into it....not for me......too gadgety...coverage too spotty. Great for urban and semi-rural stuff. Most of the places I like to go are out of range of digipeaters. Here in So Cal there are some offroaders that are playing with it...but they tend to hang out in the local playgrounds (Anza Borrego, Big Bear, etc.). No problem there, because they're usually directly underneath a repeater.....and probably not far from a cellular tower. Way easier and cheaper to study up and step up to HF. With an HF rig and a GPS unit you can set up sked's with tons' o hams that would be willing to track your coord's and status. They even have nets for RV'ers and Maritime Mobiles (sailing and motor vessels) that do this type of thing very well. Most have phone patch service as well, if needed.
This way, I've given rare grid squares to hams that would've never have got them otherwise. In return, I've received detailed weather reports (when out of range of NOAA's FM signals) and peace of mind.....and it was free of charge!
Come to think of it, I'm surprised sked's aren't discussed or used more often between members on this site. I'd certainly be willing to anchor for others that were in the boonies while I was stuck at home.

[gary in ohio]

APRS is great but you do need to have another APRS node to relay your signal around. A single node APRS is pretty worthless. If I were going to go APRS I would have a dedicated radio for APRS and not tie up my main radio for APRS or GO with the APRS specific radio's that can monitor and switch freq when they need to transmit.

[BlackX]

APRS is great but you do need to have another APRS node to relay your signal around. A single node APRS is pretty worthless. If I were going to go APRS I would have a dedicated radio for APRS and not tie up my main radio for APRS or GO with the APRS specific radio's that can monitor and switch freq when they need to transmit.

This is exctly what I discovered in my research this morning. It needs to be on frequency 146.390 so you'd be constantly switching between frequencies when you want to talk. However, I think the Yaesu 8800 might be good for this because you can monitor two freq. at once. Just a guess. I'm new to all this stuff.

[SinCity4r]

The Kenwood D710a has dual tuners. I just leave one on the aprs freq and talk on the other. APRS has been helpful on trips I've been on. I use the d710a and a garmin 276c.

[Akecj7]

I just finished my install in my JK and I am using the Kenwood D710a as well but with a GPS V plus. This set up works great. I am going to change my GPS to a puck style Garmin so my install will be a little cleaner.

[bc_fjc]

I've been running the Kenwood D710 for almost 2 years now... works really nice when another truck in the pack has APRS... when possible we normaly try to get a truck with a ham radio/APRS near the front of the pack and another near the end.

You can also configure APRS to use AMSAT for when you are out of range of other stations and Digi's. It took a little playing but works.

[Mashurst]

I just finished my install in my JK and I am using the Kenwood D710a as well but with a GPS V plus. This set up works great. I am going to change my GPS to a puck style Garmin so my install will be a little cleaner.

I would love to see some pics of this as I have a GPS V plus. I haven't got a radio yet but the d710a is on my short list. Did you made up your own cables?
Thanks

[Akecj7]

I would love to see some pics of this as I have a GPS V plus. I haven't got a radio yet but the d710a is on my short list. Did you made up your own cables?
Thanks

My dad had a cable that he made that works with the Kenwood and the Garmin. But I will be making all of the cables for the new GPS when I get it. I will take some pictures tonight for you.


I've been running the Kenwood D710 for almost 2 years now... works really nice when another truck in the pack has APRS... when possible we normaly try to get a truck with a ham radio/APRS near the front of the pack and another near the end.

You can also configure APRS to use AMSAT for when you are out of range of other stations and Digi's. It took a little playing but works.

What is the best way to configure the D710 to use AMSAT for APRS? Any info would great on this, Thanks.

[Akecj7]

Here are some pictures. The radio is mounted under the seat. The Head is attached to the Daystar dash panel using some Ram Mounting parts. When I get the new GPS I am going to mount it under the dash like the MYGIG reciever. When I go to make my cable I am going to split it and run one to the radio and one to a serial connector for my laptop.

http://i96.photobucket.com/albums/l192/akecj7/DSC_9434.jpg

http://i96.photobucket.com/albums/l192/akecj7/DSC_9440.jpg

[cruiserlarry]

I've been running APRS in my rig for a while, although I've updated the components involved to get to my current configuration. :coffee:

Current set up is a Kenwood TM-D710A transceiver, Lowrance GlobalMap Baja 540C, and a Panasonic Toughbook CF-30 running UI-View 32 software and Precision Maps 8.1 mapping software. :bike_rider:

This set-up works great, and I've used it with my friends at Outdoor Adventure USA (www.oausa.com) on the trails to keep track of everyone with no issues. Very handy way to get weather data from fixed stations along your routes when traveling, too. :smiley_drive:

[chrismc]

I just traded up from a VX-7R to a VX-8R (with the built-in APRS modem). So far, I haven't successfully sent a beacon (although I am receiving fine). I'm not sure if its a misconfiguration, or if my signal just isn't getting out from the HT. I'm in a suburban area, and there are several I-gates within a few mile range. Still working through this one...

I'm thinking about picking up one of the TinyTrak4's with the built-in radio to install in the Jeep and occasionally use with a Netbook. It can act as a standalone tracker (cheap LoJack?), as well as a KISS TNC, so would work well for this. From what I've read, it can also act as a digipeater simultaneously, which would get my HT APRS signal out to the world when I'm out hiking.

[Mashurst]

Here are some pictures. The radio is mounted under the seat. The Head is attached to the Daystar dash panel using some Ram Mounting parts. When I get the new GPS I am going to mount it under the dash like the MYGIG reciever. When I go to make my cable I am going to split it and run one to the radio and one to a serial connector for my laptop.


Thanks! That give me some good ideas. So with that setup can you see other APRS users in the screen of the GPS V? I may be using my setup for Search And Rescue and I know a lot of the guys have APRS.
This is also making me really lean toward the Kenwood 110 rather than the Yaesue 8800.

[Akecj7]

I will be using a toughbook CF-18 in the JK for tracking as for mapping goes I have terrain navigator and delorme. I have been looking for a package that will let me track other people using APRS. I have been looking into the VX-8R handheld as well, because it has the built in TNC. Did you get the GPS unit for it not sure it will work with anything but theirs? That might be why you are not able to send your location.

[Akecj7]

Thanks! That give me some good ideas. So with that setup can you see other APRS users in the screen of the GPS V? I may be using my setup for Search And Rescue and I know a lot of the guys have APRS.
This is also making me really lean toward the Kenwood 110 rather than the Yaesue 8800.


You will be able to see their location on the Kenwood 710 (lat, long, speed, distance from you and direction from you, ect). I dont know the difference between the 710 and the 110 so it might be different. The Garmin is used strictly for getting your info to send. You should be able to download the Kenwood manual from their site. as for seeing other peoples position you will need a laptop or similar. I believe, that is the part I am still trying to work out.

[Mashurst]

Sorry I meant 710 not 110. I didn't think the GPS V would support other locations but I was hoping I was wrong. I really don't want an LCD much less a whole laptop in my rig but it sounds like if I want to see other APRS users I may not have a choice.
I wonder if there is a small net-book that could be set up with the screen upside down mounted from the roof just behind the rear view mirror.

[chrismc]

I have been looking into the VX-8R handheld as well, because it has the built in TNC. Did you get the GPS unit for it not sure it will work with anything but theirs? That might be why you are not able to send your location.

I did not buy the Yaesu FGPS-2 module initially (although I plan to once I decide between the Remote Mic or HT mount). The module certainly makes it MUCH more effective, but it is not strictly necessary for APRS operation. You can manually enter your position (Lat/Lon), which is a PITA. Sadly, all coordinates on the VX-8R are Lat/Lon, and there is no way to enable UTM (which we use for SAR). You do have the option of using Degress/Minutes/Seconds, or Degrees/Decimal Minutes.

As far as I have been able to tell, noone has been able to interface any other GPS with the VX-8R. It does not use a standard NMEA interface. They also have a new version of the VX-8R coming out soon that is "APRS Enhanced" called the VX-8DR (http://www.universal-radio.com/catalog/ht/0008.html). Its is a bit more money, and they will also have a $60 upgrade program for existing VX-8R owners (apparently its a hardware upgrade, not just firmware).

[bc_fjc]

What is the best way to configure the D710 to use AMSAT for APRS? Any info would great on this, Thanks.

Yahoo groups has a good section on the D710 http://groups.yahoo.com/group/TM-D710_TM-V71. There is a good article on how to configure this here http://f1.grp.yahoofs.com/v1/QFsoS2M-j7tL6FJ9P2Oc_vL7QmPYdntr8oU8N7rC8ldpXEuy4mYYAVghWs udiowmUqPFsnhxnRGPenWq81CJVcEYwxwB/How%20to%20be%20heard%20by%20the%20ISS%20with%20th e%20%20Kenwood%20TM-D710A.pdf

73,

[craig]

I kind of gave up on APRS since I use the SPOT for friends and family and I don't know anyone else local to me that uses APRS on their rig.

I still like the idea of tracking other rigs in my group when out and about on a trail run but it just hasn't become a "need" thing. Also I think we are all waiting for someone else to be the first to jump in :)

I understand completely. I'm looking at picking up 2-3 battery powered Tiny Trackers that I can put inside a pelican case and velcro onto the roofracks of the tailgunner and other friends. It would have my callsign, but would at least give me a way to track where others in my group are even if they aren't licensed or are licensed but not APRS users.

Craig

[taugust]

Thanks! That give me some good ideas. So with that setup can you see other APRS users in the screen of the GPS V? I may be using my setup for Search And Rescue and I know a lot of the guys have APRS.
This is also making me really lean toward the Kenwood 110 rather than the Yaesue 8800.

I have a Kenwood D-7A HT that I used with my Garmin GPS III. Other APRS stations do show up on the screen as waypoints. Not very efficient, and I haven't tried to see if they are mobile. Also, those waypoints are saved in waypoint memory and have to be deleted periodically.

[Mashurst]

I have a Kenwood D-7A HT that I used with my Garmin GPS III. Other APRS stations do show up on the screen as waypoints. Not very efficient, and I haven't tried to see if they are mobile. Also, those waypoints are saved in waypoint memory and have to be deleted periodically.
Wow that is very interesting. That would be very cool for what I want to do. I passed elements 2 and 3 this weekend so It's time to start shopping for a setup. I would love to know what happens when they move. I wonder if it just updates the way-point. That would be super cool. Thanks for the info.

[mmccurdy]

FYI, Yaesu has just started shipping their "response" to the Kenwood unit discussed above, it's called the FTM-350 and street price appears to be $599. It has a nice-looking and relatively inexpensive ($70) integrated GPS add-on option. May be worth a Google search as an alternative -- it's the way I'm leaning right now, having just picked up my ticket on Saturday as well.

I have a Garmin 378 and I'd like to try and use that for the input if possible, but I have no idea what the options are for outputting other stations' locations back to the GPS. Already have my call but no rig yet -- gotta fix that quick :ylsmoke:

http://va3qv.files.wordpress.com/2009/12/ftm350.jpg

[chrismc]

Nice! I've been waiting for the FTM-350R as I need a new dual-band mobile and was hoping to add APRS into the box. It looks like a great unit, but I really wasn't expecting the $$$$$$. Wowee.

Here is Yaesu's page (http://yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=106&encProdID=33C814E3D04C92310507ECDE68CC3C01&DivisionID=65&isArchived=0) and here's the sales page on Universal Radio, Inc (http://www.universal-radio.com/catalog/fm_txvrs/3350.html).

Its a bit of a bummer that they didn't throw the 6M band in there at that price.

[Mashurst]

FYI, Yaesu has justhaving just picked up my ticket on Saturday as well.
Already have my call
http://va3qv.files.wordpress.com/2009/12/ftm350.jpg

How did you get your Call so fast? I thought it took a week or more.
That looks like a nice rig hummm...

[mmccurdy]

How did you get your Call so fast? I thought it took a week or more.

Yeah I have no idea. I think up to a week is more typical. I went through the Sunnyvale VEC (not ARRL) so maybe that has something to do with it. Ok end of hijack :)

[thallca]

FYI, Yaesu has just started shipping their "response" to the Kenwood unit discussed above, it's called the FTM-350 and street price appears to be $599. It has a nice-looking and relatively inexpensive ($70) integrated GPS add-on option. May be worth a Google search as an alternative -- it's the way I'm leaning right now, having just picked up my ticket on Saturday as well.

I have a Garmin 378 and I'd like to try and use that for the input if possible, but I have no idea what the options are for outputting other stations' locations back to the GPS. Already have my call but no rig yet -- gotta fix that quick :ylsmoke:

http://va3qv.files.wordpress.com/2009/12/ftm350.jpg

My ft-2800 2-meter radio died on me the other day. I pressed the on button and nothing happen. When I went to check my power connection, I saw both of the 15 amp breakers on the positive side were burned out. Thought the short was because of the recent engine work I had done on the truck, but the minute I replaced the breakers they burned out also. Took the radio out and hooked it up to my power supply at home and the power supply went into safe mode. So, my radio shorted out on me. I have no idea how that happened, but it makes me a little worried about buying a $600 radio like the FTM-350 to replace the ft-2800. Has anyone else have something like this happen to them? I have had my ticket since 1993 and in all those years I have never had one of my mobile radios burn out like that.

[gary in ohio]

I was excited about the 350 when I saw it but now with the price, not so much. $600 and you dont even get a mic unit and the GPS is optional.

Way to much money...

[grouch]

Yea but do you ned the mic anyway? I was wondering how well the speaker and mic in the head unit would work in a truck environment. When I comes to putting a mobil in my buggy, I will be seriously looking at this radio. Another plus for me is it looks like you plug the mic into the radio and not the head unit. That would make for a cleaner instal in my truck and fix the worry of stress on the mic jack like the 7800-7900. Just thinking out loud.

[SunTzuNephew]

My ft-2800 2-meter radio died on me the other day. I pressed the on button and nothing happen. When I went to check my power connection, I saw both of the 15 amp breakers on the positive side were burned out. Thought the short was because of the recent engine work I had done on the truck, but the minute I replaced the breakers they burned out also. Took the radio out and hooked it up to my power supply at home and the power supply went into safe mode. So, my radio shorted out on me. I have no idea how that happened, but it makes me a little worried about buying a $600 radio like the FTM-350 to replace the ft-2800. Has anyone else have something like this happen to them? I have had my ticket since 1993 and in all those years I have never had one of my mobile radios burn out like that.

FWIW, I've had good results with Yaesu factory service.....reasonable prices for out of warranty work, and FAST. Almost as good as Icom, way the heck better than Kenwood (amazingly expensive AND slow).

[mmccurdy]

I was excited about the 350 when I saw it but now with the price, not so much. $600 and you dont even get a mic unit and the GPS is optional.

Way to much money...

The DTMF mic is included for the $600, and the GPS is (I think) just another $70 and it bolts right in to the back of the face. The software support for APRS once you've done this seems at least on par with the Kenwood unit. That said, it is definitely more money, but I personally prefer the look of the Yaesu a little more as well as some of the flexibility it affords in mounting.

The things I'm not clear on are whether you have the option to use an external (i.e. Garmin) unit with the Yaesu, or whether Kenwood offers a competing "built-in" option.


Yea but do you ned the mic anyway? I was wondering how well the speaker and mic in the head unit would work in a truck environment. When I comes to putting a mobil in my buggy, I will be seriously looking at this radio. Another plus for me is it looks like you plug the mic into the radio and not the head unit. That would make for a cleaner instal in my truck and fix the worry of stress on the mic jack like the 7800-7900. Just thinking out loud.

You can plug the mic into either the head or the body of the radio.



Another question for current APRS users (actually on topic with the thread): I just want to make sure you can use APRS from rig to rig without a digipeater in between. We often have people trying to join us in remote locations, for example an evening after they get out of work or a day or more later, and it would be fantastic if we could get them close enough to be in radio range and let the APRS telemeter our exact location. I had just been assuming this was possible, but the digipeater talk now has me thinking twice. :confused:

[taugust]

Digipeaters are not required to make your APRS system work. They are a means to extend the useful range, much as audio repeaters do, and as a gateway to the internet. Your APRS system will hear any stations in range and mark their position, either with Lat/Lon coordinates, distance from your station, bearing, speed, heading, etc. or as an icon on a map, depending on your setup. You can send and receive text messages as well.

[tsm1mt]

The FT-350R is priced just a touch higher than the TM-D710A. I expected the price to come in close to the D710, and it has, but not a "lot" more.

For those worried about digi coverage while out in rural areas, you can start by going with a better antenna and more power.

I live in Montana, and on 5w with a 1/4 wave whip, just on my drive to work each day, about 1 packet would get picked up by a digipeater. Switching to the D710 and a 5/8 wave, and at 10w a few packets got picked up, 25w a bunch more, and at 50w almost every packet gets the "digi-peated" beep from the Kenwood.

If you're still worried about being heard, and you don't want to fool with using the AMSATs, then it's time to upgrade to General and put in an HF APRS.

Running APRS on 30m should get you "heard" by an IGate under most conditions, even far from "civilization."

Those of you wanting a single, inexpensive 2m radio for voice and APRS, look into "MicE" and "Send on PTT" - you can then do APRS and voice on a single simplex frequency. Primarily only useful for those in your group, since you don't want to be talking on 144.390.

[Mashurst]

Running APRS on 30m should get you "heard" by an IGate under most conditions, even far from "civilization."

Have you done this? Perhaps this should be a new thread but what does the antenna for 30m mobile look like? Is it practical for an off road vehicle. Most of the mobile HF antennas I have seen look like they would not do well coming in contact with trees rocks etc.
KJ6EUO

[arz]

Have you done this? Perhaps this should be a new thread but what does the antenna for 30m mobile look like? Is it practical for an off road vehicle. Most of the mobile HF antennas I have seen look like they would not do well coming in contact with trees rocks etc.
KJ6EUO
http://www.hamstick.com/9130.html

30m mobile antenna

# 1/2" Hollow Fiberglass Base With Loading Coil Wound Directly On Covered With PVC Shrink Tubing
# Plate Brass Fitting
# 3/8" X 24 Male Threads That Fit Most Mobile Mounts
# 17-7 PH Tempered Stainless Steel Whip
# Slides Into Base For Easy Frequency Adjustment
# 7' Long

about $31

[xtatik]

Have you done this? Perhaps this should be a new thread but what does the antenna for 30m mobile look like? Is it practical for an off road vehicle. Most of the mobile HF antennas I have seen look like they would not do well coming in contact with trees rocks etc.
KJ6EUO

Your callsign says you're probably in California. I run a screwdriver type antenna on my truck, and while traveling in our mountains and deserts I've rarely had to dismount it to clear obstructions. When I do dismount it, it takes only a few seconds. The "hamstick" type of antennas mentioned above are as rugged as most commercially made loaded FM antennas. The Hamsticks are monoband and can be set up to dismount or change in seconds as well. They are not the most efficient antennas, especially below 20m..... but, they can talk around the world at 100 watts..........and they're cheap!!

I wasn't aware that was anyone was running APRS on HF. I'm starting to get interested. This would be a huge benefit to sailors/cruisers.....and others that travel "out there".

[mmccurdy]

I have a Kenwood D-7A HT that I used with my Garmin GPS III. Other APRS stations do show up on the screen as waypoints. Not very efficient, and I haven't tried to see if they are mobile. Also, those waypoints are saved in waypoint memory and have to be deleted periodically.

So I'm about to pull the trigger on a rig, and this feature pretty much has me on the fence between the Kenwood 710 and the Yaesu 350. Yaesu seems to take more of an "all inclusive" approach to GPS/APRS, but since I'm running at Garmin 378 chart plotter anyway, I have no issue feeding the location in from the Garmin, and more than that I think it would be awesome to see other stations represented on the Garmin screen as waypoints... however I read on another forum somewhere that the Kenwood-to-GPS implementation was pretty ugly, and it would just keep dropping "new" waypoints as things moved around, so before long you would have 200+ waypoints cluttering your view.

If this is true, this is pretty much a dealbreaker, and might push me back toward the Yaesu, which is not without its share of problems as it turns out.

Any updates on this would be much appreciated....

[bc_fjc]

I wasn't aware that was anyone was running APRS on HF. I'm starting to get interested. This would be a huge benefit to sailors/cruisers.....and others that travel "out there".

APRS can be used on HF but I use Airmail/Winlink position reporting when on HF. http://www.winlink.org/dotnet/maps/PositionreportsDetail.aspx?callsign=VA7DRW. I get the benefit of being able to send and receive emails with anyone. Lots of sailors/cruisers use Airmail/Sailmail.

[chrismc]

APRS can be used on HF but I use Airmail/Winlink position reporting when on HF. http://www.winlink.org/dotnet/maps/PositionreportsDetail.aspx?callsign=VA7DRW. I get the benefit of being able to send and receive emails with anyone. Lots of sailors/cruisers use Airmail/Sailmail.

How did you make it from China to Vancouver in 3 min? I've been reading about Winlink for years, but have never run across anyone that uses it. It always looked like a great option for overland travel. I'd be interested in hearing more about your experiences. The only drawback I've seen is that it requires a fairly pricey Pactor 3 modem, no?

[bc_fjc]

How did you make it from China to Vancouver in 3 min? I've been reading about Winlink for years, but have never run across anyone that uses it. It always looked like a great option for overland travel. I'd be interested in hearing more about your experiences. The only drawback I've seen is that it requires a fairly pricey Pactor 3 modem, no?

:) I messed up typing in my position... used East instead of West. Normally I have my computer connected to the GPS in my truck when I enable Position Reporting.

Yes, the Pactor III modems are the best choice (fastest , best noise to signal ratio) but there is a selection of other modems that are compatible (http://id3431.securedata.net/siriuscyber/). I have been using SCS PTC-IIUSB with the Pactor 3 enabled for the last 2 years. It has worked perfectly for me once I learned all the ins and outs... the best part is the ability to communicate to those with out a ham radio and then there are the added benefits of being able to request weather conditions form the system and locations of nearby stations....

[HenryJ]

This seemed to be the most appropriate topic in which to bring the subject of APRS back to light.
I realize the SPOT has taken some of the "spotlight" from APRS, but I still see it as a good alternative. It has taken me five and one half years to get to the point of APRS implementation.
I finally ordered what I need to get APRS running in my truck. I settled on a stand alone set up by http://www.byonics.com/

The Micro-Trak RTG (Ready To Go) (http://www.byonics.com/microtrak/mt-rtg.php) should be all that I need. 10 watts is not huge power, but twice that of an HT. A good way to "wet my feet" in APRS. There is valid argument for limiting transmission power with APRS use. 10W-20W seems to be the best place to be from the research that I have done. Line of sight is what it is all about and I have lots of that here. Love the big sky country.

I think the MicroTrak RTG will be a good investment. $196 to my door all inclusive. GPS, transmitter, antenna and programmed ready to go.
I should be able to toss this in any vehicle with ease. Maybe even on my TW200. My hope is this will be the poor-man's SPOT. Well a tracker at least. Others can follow my progress.

It should also suffice for vehicle to vehicle transmission. It does not receive as it is a "dumb sender" only. Still I will show up on others receivers. I am not to the point where I am comfortable with the software on the laptop yet. My mapping needs are satisfied in ways that do not include APRS. If it does not serve my "expedition" needs, it is low cost and can be put to urban uses.
Any,hoo...I dropped my dime and await shipping.:victory:

[craig]

Those trackers are pretty nice and work great for someone who just wants to be seen by their trail leader without setting up a mapping interface themselves.

We've been busy adding the ability to display APRS stations in Overland Navigator and the beta testers are testing it now. Our goal was to provide the ability to display others locations, but without requiring a steep learning curve to do it.

In my opinion, the easiest way to set this up is a Kenwood D710a radio and a single cable to a GPS or Overland Navigator. With the D710a you plug a cheap $35 GPS puck into the Overland Navigator computer (if it doesn't have one built in), then run a single off the shelf cable from the computer to the GPS port on the radio. Configure a couple of settings and you are on the air.

GPS ---> Overland Navigator <-------> Kenwood D710a

http://lh6.ggpht.com/_Nhd17QG7pDY/S_gg1nXT9-I/AAAAAAAABfM/V7tINtXSpic/snap8.jpg

The snapshot shows a variety of APRS stations in the Western Washington area. When on the trail, you can zoom in to the topos and just see your friends. From top to bottom there is a sailboat cruising the San Juan Islands, the Skagit repeater, a pickup, a camper, a car, another pickup, a weather station, and the Yakima repeater on the other side of the cascade mountains. All of this was heard over the air.

Here's the feature comparison to a traditional GPS...
- Overland Navigator supports APRS specific icons, rather than generic waypoint symbols like a handheld GPS would.

- Overland Navigator moves stations when an updated position is received rather than adding a second waypoint the way a handheld GPS would.

- Overland Navigator has a configurable expiration time, after which the stations are removed. You don't have to manually delete them like you do on a handheld GPS.

- Overland Navigator will visibly fade the symbols out as they get old. This gives you a quick indicator as to how long it's been since you last heard from that station. As a trail leader, this allows you to quickly understand how current everyone's position reports are with a single glance.

[Chazz Layne]

Ah, I was wondering if you had implemented APRS in Overland Navigator... now I'm going to have to buy it (and a computer to put it on). :D

[craig]

Sorry I meant 710 not 110. I didn't think the GPS V would support other locations but I was hoping I was wrong. I really don't want an LCD much less a whole laptop in my rig but it sounds like if I want to see other APRS users I may not have a choice.
I wonder if there is a small net-book that could be set up with the screen upside down mounted from the roof just behind the rear view mirror.

Go with an Ultra Mobile PC. They are about 7" across, which makes the just right for the truck. In comparison, most handheld GPS units are about 2.5" with the biggest ones getting up to about 5". A typical Netbook is a 10" screen, and a small laptop is a 13" screen.

Here is a shot of mine. Note that I was leaning down to get a good angle when taking the shot. From the drivers position I can still see the hood and the corners of the vehicle with no trouble at all.
http://spatialminds.com/images/IMG_3365.jpg

And the RAM mount holding it up.
http://spatialminds.com/images/IMG_3387.jpg

[craig]

I have a Kenwood D-7A HT that I used with my Garmin GPS III. Other APRS stations do show up on the screen as waypoints. Not very efficient, and I haven't tried to see if they are mobile. Also, those waypoints are saved in waypoint memory and have to be deleted periodically.

These are the problems I was describing in my comparison to a handheld GPS above. Overland Navigator avoids all of them.

Waypoints are moved rather than having multiple waypoints for each station. Also, old stations get deleted automatically. You can configure how long a waypoint should stay on the screen before it is deleted.

I'm *really* having fun both coding and testing this feature. APRS makes the map come alive. It reminds of of the first time I took my computer online. All of a sudden it was just so much more capable and interesting than when it sat in the corner disconnected from all the other computers in the world. It's just fantastic to be able to see where other trucks are, where the repeaters are, etc.

Craig

[gary in ohio]

I dont have APRS in my car, but have an APRS app on my android phone that will inject me into the APRS system.

[HenryJ]

I dont have APRS in my car, but have an APRS app on my android phone that will inject me into the APRS system.Yup, I use iaprs on my touch too.

[craig]

I've use the droid APRS app on my phone for fun too. :-)

Just to be clear for those unfamiliar with Amateur Radio and APRS. The iPhone and Android apps only work when they have 3G network access on the cellular network. The regular version that uses the Amateur Radio is required if you are on the trail where there is no APRS network.

[Mashurst]

What is the app called? I can't find it on the market. I wana play with it.:drool:

[craig]

APRSDroid - It's not in the MarketPlace yet because it's still in Beta. http://wiki.github.com/ge0rg/aprsdroid/

[HenryJ]

Literally less than five minutes to assemble and have it going!
The MicroTrak -RTG is awesome!

http://www.s-10crewcab.net/HenryJ/ham/APRS/aprs1.JPG http://www.s-10crewcab.net/HenryJ/ham/APRS/aprs2.JPG
I have a switched power port for it behind the back seat.

http://www.s-10crewcab.net/HenryJ/ham/APRS/aprs4.JPG

Really cool. Works great. Easily swapped to any vehicle I use.

[craig]

That setup looks perfect for quickly slapping something on a vehicle you want to track. How'd I miss this before? It is limited to transmitting your location though, and doesn't allow integration with a computer or GPS to see others locations.

Here's a link to the product description: Byonics MicroTrak RTG (Ready To Go) (http://www.byonics.com/microtrak/mt-rtg.php)

[HenryJ]

That setup looks perfect for quickly slapping something on a vehicle you want to track.
Exactly what I was after. The software solutions for vehicle to vehicle and easy to use mapping that works for APRS do not exist...yet. (JMO)
There are solutions out there, but none that are plug-n-play. Techno geeks that enjoy hacking can get it to work. I need simple , functional and affordable.

I have a little "duck" antenna I can toss on this and try it out on my motorcycle.
It will be fun to see how well that works.

I can plug it in to the laptop and configure a message to be sent, but then must reattach the GPS to send it. In a pinch it might be useful to send a small message, but not very convenient.

It is what it is. A very simple compact tracker. Just what I wanted.:ylsmoke:

[craig]

Exactly what I was after. The software solutions for vehicle to vehicle and easy to use mapping that works for APRS do not exist...yet. (JMO)
There are solutions out there, but none that are plug-n-play. Techno geeks that enjoy hacking can get it to work. I need simple , functional and affordable.


This is what I set out to fix with Overland Navigator's APRS solution. Combine Overland Navigator with a Kenwood D710a radio and it is super easy to setup. I guess it isn't technically plug and play since the RTG is pre-programmed for you at the factory, but it's pretty close. I need to make a video.

Craig

[1leg]

This is what I set out to fix with Overland Navigator's APRS solution. Combine Overland Navigator with a Kenwood D710a radio and it is super easy to setup. I guess it isn't technically plug and play since the RTG is pre-programmed for you at the factory, but it's pretty close. I need to make a video.

Craig

When will this version of the software be avilable? I have a D710 and netbook running XP, and would love this setup. :drool:

[craig]

When will this version of the software be avilable? I have a D710 and netbook running XP, and would love this setup. :drool:

Version 2.0.1, w/ APRS via NMEA, started shipping with new orders placed as of two days ago.

Over the next few days, existing customers will be contacted about the upgrade procedure, the website will be updated, a press release made, etc.

Craig

[1leg]

I will be placing an order soon, you need to place adds in some ham mags, and place signs up in HRO stores, HAMS will eat this up.

[craig]

Hope so! I know I'm having fun with it, so hopefully a few other Overlanders and HAMs will too. :)

Shoot, the whole reason I originally wanted to get my amateur license was so I could do APRS.

[alia176]

This link gives a decent info on the RTG unit:
http://www.vansairforce.com/community/showthread.php?t=55138

[Akecj7]

Craig,

Any update to the APRS w/ Overland Navigator? Do you have any videos or pictures of how to set the radio up? This makes purchasing another tracking software very appealing (already have Topo USA and Terrain Navigator). Thanks

[craig]

How to set it up with the D710a specifically?

The User Guide that comes with the software contains an appendix with step by step instructions for several APRS capable radios/trackers including:


Kenwood D710a
Argent Data Systems Tracker2 Model T2-301
Argent Data Systems OpenTracker+.


I've also tested, but didn't documented, the Byonics TinyTracker 4. Ultimately, the radio/tracker specific tech support will have to come from the manufacturer, but I'll do my best to make instructions available for the various trackers as I or customers test and document them.

The User Guide for version 2.0.1 is available from the spatialminds.com Support Page (http://spatialminds.com/content/Support.htm). The rest of the website hasn't yet been updated to reflect the new features in version 2.0.1. I'll be adding additional information to the Overland Navigator product page, and I'll look into doing a video demonstrating the APRS capabilities including the basic setup. It is very easy with the Kenwood D710a.

Craig

[Akecj7]

My radio is a 710a. Thanks for the quick reply. I am downloading the user guide now.

[chrismc]

@Craig-
I just read through the Overland Navigator site, and it looks like the APRS functionality is limited to display-only of APRS stations via NMEA interface. Have you given any thought to a simple text-message interface to exchange info with other stations? Perhaps using a KISS interface?

[craig]

Yes, and I'm still considering messaging for a future release, but only if there is a way to support it in a simple, easy to configure way, that doesn't introduce unnecessary complexity to non-APRS Overland Navigator users.

Overland Navigator is display only, but the Kenwood D710a or a tracker attached to a radio will beacon your position over APRS. A D710a is also capable of messaging on it's own, though a computer keyboard interface is certainly a nice addition (and why I'm considering it).

Craig

[datoy]

The way I handle APRS is I run an onboard computer. I us GPSgate which muxes the GPS data stream to as many virtual serial ports as I want. I can then run an APRS application (APRSpoint) and a number of mapping application. I also log my GPS data stream to a file so I can play it back once I get home to create Google maps for my blog site. I have been using this setup for about 4 years and it works great. I am adding HF and Winlink to the system this month and I am going to look at HF APRS for areas where a digipeater can not be seen. I have a dedicated APRS radio that is an old kenwood VHF rig. I also run and Icom IC-2820 for VHF/UHF. Will be adding the HF radio to the mix also.

[craig]

After experimenting with a few solutions I went with an Icom 2720h, TT4, and Overland Navigator. Write up in my blog (http://northwestoverlandsociety.org/Blogs/MostRecent/tabid/226/articleType/ArticleView/articleId/193/categoryId/21/Trail-Communications.aspx)

Since the write up I've decided to connect the GPS/APRS input to the computer running Overland Navigator via bluetooth. Going to go with a Firefly (http://www.gridconnect.com/blueport.html)Serial to Bluetooth adapter and use a PowerStream ruggedized 12VDC to 5VDC adapter (http://www.powerstream.com/dda.htm) to power it from the vehicle.

In the end, the GPS antenna, HAM radio base unit, TT4, etc will all be hidden under the drivers seat. The faceplate of the radio will be mounted in the dash, and the computer running Overland Navigator will be on a completely removable mount on the front dash.

Craig
K7NAV

[BrianTN]

Not trying to bring up an old thread, but I thought it would be a benefit to others if I kept another APRS question here.

My question pertains to setting up a Yaesu 857 with my MacBook Air for APRS. My goal is for a clean setup where I can easily remove my computer. The components I'm looking at are these:

GPS puck: Globalsat MR350P (http://www.amazon.com/Globalsat-Waterproof-External-Receiver-without/dp/B001ENYWJC/ref=sr_1_6?s=electronics&ie=UTF8&qid=1314830430&sr=1-6)
Computer: 11" MacBook Air (http://store.apple.com/us/browse/home/shop_mac/family/macbook_air?mco=MTM3NjU3MDM) running Parallels with Overland Navigator (http://overlandnavigator.com/) (hopefully)
TNC: OpenTracker+ (http://www.argentdata.com/products/otplus.html)
Radio: Yaesu 857d (http://www.hamcity.com/store/pc/viewPrd.asp?idcategory=205&idproduct=1153)
Antenna: Yaesu ATAS 120 (http://www.hamcity.com/store/pc/viewPrd.asp?idproduct=206)

Can I connect the TNC and GPS puck to my computer via bluetooth? I was looking at Firefly bluetooth serial adapter (http://www.gridconnect.com/blueport.html) to connect the TNC and computer.

I haven't found a PS/2 to bluetooth adapter for the GPS puck, so I was going to use this PS/2 to USB connector (http://www.newegg.com/Product/Product.aspx?Item=N82E16812196223) then this USB to bluetooth connector (http://www.newegg.com/Product/Product.aspx?Item=N82E16812146022).

Haven't found a ready made cable to connect the TNC and radio yet.

Does the 857 allow for APRS on a sub band, with ability to interrupt if I use the radio for voice?

[craig]

Brian,

I can't help with all of that hardware, but I did do something similar with a TT4 and some custom wiring for that GPS. I wrote it up on my blog (http://northwestoverlandsociety.org/Blogs/MostRecent/tabid/226/articleType/ArticleView/articleId/193/categoryId/21/Trail-Communications.aspx) . Since I wrote that article, I've decided to add a 12vdc to 5vdc ruggedized hard mount power supply and a serial to bluetooth adapter to the system. This will provide me with 100% bluetooth connectivity for both the GPS input and the APRS input/output (GPS and APRS are actually the same COM port in my setup). This whole approach is much more complicated to setup, but will remove all visible wires except 1 power cord to the tablet.

Craig

[h2005]

http://www.delorme.com/inreach/

[BrianTN]

Brian,

I can't help with all of that hardware, but I did do something similar with a TT4 and some custom wiring for that GPS. I wrote it up on my blog (http://northwestoverlandsociety.org/Blogs/MostRecent/tabid/226/articleType/ArticleView/articleId/193/categoryId/21/Trail-Communications.aspx) . Since I wrote that article, I've decided to add a 12vdc to 5vdc ruggedized hard mount power supply and a serial to bluetooth adapter to the system. This will provide me with 100% bluetooth connectivity for both the GPS input and the APRS input/output (GPS and APRS are actually the same COM port in my setup). This whole approach is much more complicated to setup, but will remove all visible wires except 1 power cord to the tablet.

Craig

Craig, I think it was one of your posts that led me to the bluetooth adapter. Sounds like it will make for a very clean install.