I have a less than 3 month old scanner, I use it to scan one id in a p25 talkgroup in a simulcast system and for 3 to 4 weeks it was amazing. For 3 or 4 days the traffic started becoming garbled and intermintent and then all of the sudden I lost all signal on the control channel. I didn't change a thing the same yagi is up at 30 feet and the cable was not changed. I checked the obvious poor conections and frayed wire. I did a Ohm check with the cable disconnected from the scanner between the inside and the outside of the coax and it remains open. When I hook it up to the scanner it is 1k ohms. Do I have a short in the scanner? No matter what I do I can not get any reception for the control channel, I tried changing out antennas. Help, its weird that it was all the sudden. Side not I'm less than 2 miles from the antenna and the yagi, It used to work ok without the Yagi but now wont work with anything.