Radio Road

Which tuner to get and getting the most from it. Thank God, for the radio!

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RE: Are both these stations in the same direction?

Posted by strijw426 on November 23, 2011 at 05:10:54:
WRR FM 101.1 is a 98kW station located in Dallas, TX at 184 degrees from true North at a distance of 61.7 miles with a signal level of -50.3dBm.

The offending station is KWRD 100.7 also a 98kW station at 42 degrees from true North at a distance of 4.7 miles with a signal level of -10.6dBm.

I use an outside Winegard FM only antenna with 13 elements oriented to the WRR location in Dallas. This data was obtained from FM Fool's website based on physical address. You can see that the offending station is quite stout. Without an outside directional antenna picking up WRR is a really difficult task for any tuner. About the only other thing I could do on the RF levels would be to put a balun transformer right behind the tuner, convert to 300 ohm twin lead and put a tunable trap there to try to create a suck-out at 100.7 mHz. I don't currently have the needed 9-180pFd variable capacitor to make the trap. If the trap creates too broad a suck-out it could reduce the signal level of WRR making acceptable noise free reception of the desired station worse than it is currently. It might be worth a try though.

I still think that I need a slight boost in the IF gain and selectivity of my TU-915 by changing at least one of the current IF filters using one of Bill Ammons boards that provides moderate gain plus selectivity, or maybe even an extra stage of filter & gain compared to the existing 3-filter arrangement.