[Premium-Rx] WJ 8716 and WJ8718 HF

[stephous]

Several of the WJ 8617/18 radios that I recently acquired are marked HFE and tune down to 2 MHz. The HF Eproms are installed in the 1st LO. The radios do not receive signals below 18MHz even though they tune down to 2 MHz. Gain drops off sharply. I'm assuming that the filters were changed at some point. I have been told that there is a filter jumpering procedure to restore HF.

I have one of the 8618Bs on the bench. I pulled the low band filter board A3A4 and I'm trying to figure out how to jump it for HF. Do you jump L9 or the entire stage from L9 to L5? I have an 8617B-(S1) with HFE but it's bolted in the rack. It would be nice to figure this out without dismantling that radio.

I have the manuals. How do you restore full coverage?

Thanks,
Steve


PCS Associates
949 Glenneyre Street
Laguna Beach, CA. 92651-2706
Phone: (949) 376-7844
FAX: (949) 376-7866
http://www.pcsassociates.net/
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