On 6/10/2018 8:01 PM, terry burge wrote:
All's well that ends well I'm happy to report. K2AV, Guy suggested I check the SO-239 on the Rig Experts AA-170 and I found an open solder joint between the back of the connector and the circuit board. Even with my close in glasses and a magnifying glass it was hard to be certain. So a little solder and 'hop-a-long' rides again! It's working. Will check out the coax stub again to see what the RE reads now. Terry KI7M
My AA-55 is a different model than yours, but the instructions have curious warning about not putting too much force on the UHF connector. I am thinking that RE realizes they have a weak mechanical mounting, relying on solder. I think I will revise my advice: 1. Always use a DC block 2. Carefully attach a short flexible coax jumper and leave in place. Calibrate it out. Then connect the DUT to the end of the jumper. No mechanical stress on the UHF. Rick N6RK _________________ Topband Reflector Archives - http://www.contesting.com/_topband
