Dear Gangue: My XV-432 is acting very strangely. I am working with Gary in support on the problem, but I have to wait for a couple of parts to arrive to run the tests he requested so...I am wondering if anyone has experienced this:
Into a dummy load, used with K3, it works fine on CW. Puts out 10-20W depending on PWR setting on K3. When I put the K3 into SSB mode, however, the XV-432 will put out no power on any setting--UNTIL I MOVE the PWR knob. This is the strange part. Even if the K3 is set to the minimum pwr setting, .10 mW, the XV-432 puts out no power until I move the PWR setting counterclockwise, that is, as if I am trying to select the a power less than .10 mW. While the knob is moving the XV-432 will jump in pwr from nothing indicated to 30W (all power LEDs lit) and back down again in roughly 1 Hz cycles. If I countinue to rapidly move the PWR knob on the K3 back and forth the XV-432 will jump around on power output from 1 to 30 watts. This is with the K3 showing .10mW the whole time, until I turn the knob clockwise. Erratic power output occurs at all levels of K3 drive from .10mW to 1.0mW. This is completely repeatable. I have tried changing/rearranging cables. I am also using an XV-144 that shares the XVTR IN/OUT cables on the back of the K3. These cables go to a BNC tee and then to each transverter. I have tried removing the tees, and using the cables stright form the K3 to the XV-432 with no change. The XV-144 operates fine in all modes even when driving an amplifier to 500w. Both XV have the bypass cap mod, and the XV-432 has the power module resistor mod. Again, the XV-432 does not exhibit this behavior in CW mode which I find baffling. Any ideas? Thanks. 73 Eric WD6DBM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
