RF Signal Level

[kevsoles]

Any one have any tricks to bring up the RF signal Level on P25RX I was using the standard antenna that it came with but it did not preform very good, I just purchased a Mag Mount 4G antenna that I saw was recommend but the RF Level is still in the red and sometime just in the orange level but never in the green I can still receive transmissions but it choppy any suggestions

 

[FreqNout]

A few questions to help troubleshoot. What dBm values are you seeing? Has it always been choppy or did something change? What firmware version? Have you tried changing the p25 demod mode to see if that changes anything?

 

[btt]

Try moving the antenna around. Try different orientations while you are monitoring signal insights and the IQ plot. Make sure the antenna is on top of a metal structure. As FreNout suggested, do try changing the demod mode. In the next release, there will be a real-time-automatic option for the demod mode.

 

[kevsoles]

Thanks for all the help guys, I'll try doing the adjustments that were suggested I did move the antenna around the room and was able to get a better signal so i'm thinking its just a bad location again thanks for all the help

 

[kb8q]

This solid stainless steel support for 2 antennas works great. However, I'm also only 2.25 miles from the simulcast site. It's really heavy and not as easy for the cat to tip over as the wooden support I used previously.

Try moving the antenna around. Try different orientations while you are monitoring signal insights and the IQ plot. Make sure the antenna is on top of a metal structure. As FreNout suggested, do try changing the demod mode. In the next release, there will be a real-time-automatic option for the demod mode.
edit: Also, keep in mind while adjusting the antenna that you want to adjust for lower EVM. That is more important than the absolute signal level.

 

[FreqNout]

I did move the antenna around the room and was able to get a better signal so i'm thinking its just a bad location

Good to hear you are seeing improved signal by moving antenna location. Keep in mind even small movements of the antenna can make a big difference. A full radio wavelength at 850 MHz is less than 14 inches.