I went and raised my discone and the reception is even better than before (I also home ran LMR-400 equivalent). But now an old ugly 'friend' has popped back up. I am picking up an AT&T paging signal which broadcasts from very close to me on 152.840 MHz. After filtering AM and FM broadcast signals, it is the strongest signal from my antenna.
I built a 'stub filter', but it is NOT a notch filter and reduces too much of the spectrum. I looked at a PAR filter, but it affects +/- 5 MHz. That would mean signficant signal loss from between 147.84 to 157.84 MHz. Most of the stuff I monitor (except CHP) is in that band, and so that is not a good solution.
I did a search on eBay just to see what was available, and found nothing that was in this frequency range. We have had some discussions on this topic before, but I am unable to find them.
I'd like to hear some ideas. Surely others have run in to this issue. If I could attenuate the offending signal a mere 10dB, I would be happy. 20dB of attenuation would put it well below the signals I typically receive.
Thank you in advance.
I built a 'stub filter', but it is NOT a notch filter and reduces too much of the spectrum. I looked at a PAR filter, but it affects +/- 5 MHz. That would mean signficant signal loss from between 147.84 to 157.84 MHz. Most of the stuff I monitor (except CHP) is in that band, and so that is not a good solution.
I did a search on eBay just to see what was available, and found nothing that was in this frequency range. We have had some discussions on this topic before, but I am unable to find them.
I'd like to hear some ideas. Surely others have run in to this issue. If I could attenuate the offending signal a mere 10dB, I would be happy. 20dB of attenuation would put it well below the signals I typically receive.
Thank you in advance.