I did a road test recording to my QT-80 from my QT40 in my jeep. It seems I'm only able to tx about 2 miles. I tried one trip with the rf gain at max and the squelch just above the noise. The 2nd trip I turned the squelch all of the way up and tried the radio power at setting 2 and setting 15. It really didn't seem to make much of a difference either way. I was using channel 14, as it seemed the quietest. After Thanksgiving I will try driving my truck on the same route. If I have more time, I want to try using lsb from my jeep to my truck, and then vice versa. The route has a lot of houses along the way, and relatively flat.
if I remember you have a tail light CB mount and a 4 foot Firestick on the jeep? ..
I'm surprised you could even get the 2 miles...
jeeps are really terrible and as I've said a million times.. I've never had luck with any Firestick.
every firestick I've worked on gives me a GREAT SWR.... very easy to get a great SWR with the FIRESTICK... but they never work... at least for me.
I also don't think the Jeep will receive very well, so doing the opposite test may not work too well either.... but it should be fun and interesting.
I was going to finish my friends Jeep this week but because of Thanksgiving school is getting out at noon all week, so my friend has to be home most of the day.... so hopefully the first week of December and I'll do a video and range test of his Jeep... I may not get anymore range than you, your QT-40 has a lot more power than the CS-47... but I'm going to try every trick in the book... in fact the Jeep exhaust grounding bracket came today.