OK I met up with Tony (Tdesanto) so we could tune in my newly mounted CB and we got some really weird readings so we're looking for some ideas on what to check.
I grounded my antenna mount with just a 12 gauge wire, not sure if this has a bearing or not but I thought I'd mention it. I am running a Uniden 520 XL and a 36" firestik antenna. The radio mount is not grounded as the mounting information did not say it was needed. I'll post answers to any questions as best I can as we didn't know what more to try other than below.
On our baseline reading we got the following numbers.
ch1=3.2, ch20=1.7, and ch40=1.3
Extending the tip on the antenna the following numbers.
ch1=1.6, ch20=1.7, ch40=3.1
Lowering the antenna 1/8 of an inch.
ch1=2, ch20=1.3, ch40=2.5
To make sure my ground was sufficient we grounded the antenna to the frame and got the following numbers.
ch1=2.1, ch20=2.2, ch40=2.5
Shortened the antenna another 1.4 turn and removed the heavier ground cable the last set of numbers which is where it is at presently.
ch1=2.4, ch20=1.1, ch40=2.1
Now my receiving range seems pretty good, about 4 miles from where I started getting a clear transmission to where he said he was. Once I got on the highway, I called a radio check and 2 guys said my transmission had alot of squealing. One of them said my mic might be bad. So would a bad mic cause the odd readings we got above? If its not the mic, any ideas on what to look at for the squealing?
Thanks everyone in advance.