On Fri, Aug 12, 2022 at 12:01 PM, Evan Hand wrote:
I am not sure I understand what you are reporting.? When you say the VSWR meter doesn't budge, do you mean when in setting the forward power mode??
Sorry, I misspoke, I was using a?Thruline Wattmeter, set up to measure forward power.? The QDX was connected to a dummy load through the wattmeter, and I was clicking on the 'tune' button in wsjtx to key up the radio.?
It also helps to know the firmware installed on the QDX.? You can get this using the terminal program on the startup page or reading the file names when the QDX is in update mode.
I'll update with that info later this evening.
It would help if you could tell us what the input to the QDX current readings are on receive and transmit.?
If memory serves, the radio was drawing about 0.12 amps in receive and about 0.25 amps on transmit.?
I suggest you have a dummy load connected to your QDX when doing any testing, as it is easy to damage the BS170 MOSFET finals.
While testing I was using the dummy load kit from Hans
Since PSKReporter has spotted you, you are putting out some power.
I haven't tested it with an antenna since before I connected the wattmeter, maybe it worked briefly and then stopped because it was damaged.? I suppose it's possible I'm not using the wattmeter correctly.
Thanks,?
Phil KC2WAN
