wyldman
Member
I am currently monitoring mostly 800 Mhz truncking systems at my business.I have a large tower (not sure what it is transmitting) with lots of different antennas and repeaters on it about 1000 ft from me.It seems to cause a lot of interference on my local 800 systems.It makes it almost impossible to receive distant signals.If I drive away from the tower,reception is now normal.My 140 mhz systems come in perfectly,no interference.
I am doing OK with the local systems,I have found a place for my rooftop antenna that makes it bearable,but the distant systems are won't come in.Signal strength when on the control channel for distant systems is good,but it seems as if the receivers lose their sensitivity due to the overloaded signals.
I am using a homemade dipole that seems to work well,have the same antenna at home (about 2 miles away),and it gets evrything perfectly.Is there anyway to shield the antenna from the tower ? Would using a dedicated 800 Mhz antenna reduce the interference from other frequencies ? Any ideas ?
I am doing OK with the local systems,I have found a place for my rooftop antenna that makes it bearable,but the distant systems are won't come in.Signal strength when on the control channel for distant systems is good,but it seems as if the receivers lose their sensitivity due to the overloaded signals.
I am using a homemade dipole that seems to work well,have the same antenna at home (about 2 miles away),and it gets evrything perfectly.Is there anyway to shield the antenna from the tower ? Would using a dedicated 800 Mhz antenna reduce the interference from other frequencies ? Any ideas ?