n7ld
03-07-2007, 02:16 AM
Hello everyone.
I've got a problem with the 756Pro where the output power is down on 28, 24, 21 & 14mhz. The symptoms are when you go into RTTY and turn up the RF Power, around 50 watts on 14mhz and @ higher PO levels on the other bands, the spectrum display grows until it starts to generate "grass" around the center triangular display. There is also a "hum" in the speaker when this happens.
This is into a dummy load or the antenna. I switched coax, same problem. I switched antenna sockets, same problem.
The radio works fine on 50, 18, 10, 7, 3.5 & 1.8Mhz. You can crank the PO up to full with no "hum" or "grass" on the display.
I'd appreciate if anyone has had or knows someone that had the problem & has a fix, could you pls drop me an e-mail.
73's,
K7OCR
forrestw@gbis.com
I've got a problem with the 756Pro where the output power is down on 28, 24, 21 & 14mhz. The symptoms are when you go into RTTY and turn up the RF Power, around 50 watts on 14mhz and @ higher PO levels on the other bands, the spectrum display grows until it starts to generate "grass" around the center triangular display. There is also a "hum" in the speaker when this happens.
This is into a dummy load or the antenna. I switched coax, same problem. I switched antenna sockets, same problem.
The radio works fine on 50, 18, 10, 7, 3.5 & 1.8Mhz. You can crank the PO up to full with no "hum" or "grass" on the display.
I'd appreciate if anyone has had or knows someone that had the problem & has a fix, could you pls drop me an e-mail.
73's,
K7OCR
forrestw@gbis.com