![]() ![]() The buyer got a smoking deal (figurative smoke only). My faithful friend of 22 years (bought new at Dayton in 2000) was sold as a parts donor radio. So the radio got sold cheaply as a non-transmitting radio with a "still great" running receiver. I was frustrated and (surprise!!!) no longer having fun. Years of experience and my instincts told me I likely fractured a runner in one of the flat flex cables during multiple removals and insertions, with my likely breaking a control line near the end of one end of the cable common to PTT control for all of the HF/6m bands. Now I didn't have an intermittent 3.5 band. I carefully reassembled the BPF board back into the radio, taking great care to assure everything, including the flex cables and coax cables were properly mated and everything fit nicely. (Rats !!!) So I bought five of the non-G radio's relays and cobbled one in with short lengths of Kynar wire-wrap wire. However, the older relay type was available on eBay from China, and the newer type has been obsolete and NLA since 2019. The relay type used in the Mk2G's BPF board was slightly larger and had a different footprint than those used in the Mk2/non-G radio. It was a crapshoot whether it was the input relay or the output relay. Wait an hour and the problem would return. I could make the problem go away for about an hour by heavily cycling PTT until the chatter became less and finally worked like it should. It could be either of the two relays causing my problem. My problem was the 3.5 band filter section. Balanced performance for base or mobile use.Īll 3 radios in the 706 series use two small SPDT relays in pairs to switch sections of the BPF sections in or out for the band of interest. ![]()
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