[ARC5] BC-348 Q-5er

Doran Platt jeepp at comcast.net
Sat May 9 16:49:40 EDT 2020


The thing to remember is to include the IF frequency of the receiver being used as the Q-5er, in this case 50 kHz.  So, again, 915/2 = 457.500.  Then subtract the IF of 50 kHz, resulting in tuning of the Q-5er receiver to +/- 407.5 kHz.  I've tried this method for other receivers, such as the ARC-2 with its variable IF.  No joy... nothing at the 1/2 IF frequency.  I have to use the BC band ARC-5 and "track" the variable IF tuning from 1000 to 1500 kHz, a real pain.  But, operating it pretty much on only 3885, it does the job of bringing a 40 kHz wide system down to something entirely manageable.  Using these LF receivers on the two ARR-15 wide IF receivers in the ARC-25 setup also yields usable bandwidth radios. 
Jeep K3HVG
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