adamfancher
Member
Up until December, I was getting a strong signal off the local tower for my local P25 system, was able to hear a ton of calls and record a lot of valuable data.
Upon revisiting my setup (which has not changed in the slightest bit including antenna placement) I found that I couldn't get anywhere near a strong enough signal to even receive data on the control channel.
Someone in my area mentioned that T-Mobile just rolled out their 700MHz 5G network and it's likely that is causing the problem.
I have also observed that the peak has all kinds of noise on the sidebands on the spectrum analyzer that were not there before.
If anyone has any ideas on how to get past this through filtering, amplification, or any other method, it would be greatly appreciated.
Currently I am running with a 30dB low-noise amplifier, and being somewhat of a novice, I will ask the Bart Simpson question: If you put a low noise amplifier through another low noise amplifier with the same gain, is that something that could help, or am I trying to shatter glass with daisy-chained megaphones?
Upon revisiting my setup (which has not changed in the slightest bit including antenna placement) I found that I couldn't get anywhere near a strong enough signal to even receive data on the control channel.
Someone in my area mentioned that T-Mobile just rolled out their 700MHz 5G network and it's likely that is causing the problem.
I have also observed that the peak has all kinds of noise on the sidebands on the spectrum analyzer that were not there before.
If anyone has any ideas on how to get past this through filtering, amplification, or any other method, it would be greatly appreciated.
Currently I am running with a 30dB low-noise amplifier, and being somewhat of a novice, I will ask the Bart Simpson question: If you put a low noise amplifier through another low noise amplifier with the same gain, is that something that could help, or am I trying to shatter glass with daisy-chained megaphones?
