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Needlebender 24 Francis in Belfast currently active on 375

Do you run the radio @ full output on SSB? If so, turn the variable Power down and see if that changes the SWR meter reading. If AM is showing a SWR of 1.0, then try turning SSB output down to see if you can get your SWR to show 1.0~1.1 in SSB mode.

Wow, it's rolling like crazy down around the Alamo right now.

Pez, Unfortunately, I ran across another person with a Q6pro that has the same "issue" that I do. He is selling his on ebay because of it. That makes 2 people with the same "issue" that I know of. I just disable my SWR protect and I can still use mine at full SSB output - I just can't use the...

The Registration card has a 1989 date on it. I wonder if it is too late...

LOL, Mike. As mentioned - quick & dirty & temporary. No sense spending any time or effort on it - it isn't going to be used long term. The post isn't about me complaining at all. When I set things up correctly, with a better antenna, I don't have any noise. It is about a product that I ran...

Talk to the owner. He is looking for locations/countries to setup servers. If you are willing to host a server, there is a good chance he will let you. Then your latency issues are gone. No servers in Australia yet - be the first. He won't let people run it locally on their computer - people...

ATM, I just have a quick & dirty Imax 2000 up at 25' with no grounding or ground plane and about S5 ambient noise floor. I know I can do a lot of things to lower/eliminate it - but that's not the point of this post. I was Googling QRM elimination and ran across a software program that uses AI...

It came in 3rd for me on my Q6pro. The #1 Digimike and #2 M575-M6 were slightly ahead of it for "drive". They all were clear. Plus the Digimike already has Channels and a PF button that can be converted. I think in a "noisy" environment, it would come in 1st. It seems to have superior NC...

https://www.firstwatt.com/pdf/art_matching.pdf I use one of these and try to match on all 4 parameters with Vt and Cg being the most important. https://www.amazon.com/Multi-Function-Pocketable-Multifunctional-Backlight-Transistor/dp/B081K4CM1F?tag=worradfor-20 You can get them cheaper on Temu...

RM-3's are what come stock in the 203 and they go for 5~6$ each. If you want to pay less, I suggest the Vishay/IR/Infineon IRF520 or IRF520PBF (PBF=Lead free). They are less than 1$ each and you need to use a matched quad for the amp. If you want a little more out, use the IRFZ24N; the...

Yes. Just take a test lead with a "hook" and attach it to the exposed lead of R5 closest to TR1(underneath the output transformer wraps). You can key the amp by just grounding the other end of the test lead. This grounds the low side of the relay coil.

In thinking about this, probably a better method to correctly set the bias is to use current rather than voltage. Most TO-220 case N-channel enhanced Mosfets used in radio's and amps for RF require at least 10ma to "turn on". Put an amp meter that can accurately measure up to 500ma in series...

I just measured the gate bias voltage on my KL-203 (should be the same as a KL-203p) with the stock RM-3 mosfets. It is showing 1.85v. R3 is a 3.3K to ground that if replaced with a 5K variable should give enough adjustment to get the FQP13N10's working. They have a gate voltage threshold range...

Here is a snip of the 3 port combiner from your picture in post # 20. You can see the 3 100 ohm 2 watt carbon resistors in a triangle shape on the top of it.. The bottom resistor appears to be fine. The upper left resistor, even in the shadow, appears to be fine. The upper right one however...

LOL Ok cool. I do the same thing.

Huh? Bias has nothing to do with relay chatter. Try running a Texas Star (passive A/B bias) on SSB without the SSB button pushed in (adds the cap) - the relay will chatter like crazy. Relay chatter on SSB is due to the keying circuit not staying energized between syllables/words. By adding the...

I can't tell for sure, but the upper right 100 ohm 2 watt carbon resistor on your 3 port combiner looks like it might have gotten hot. It appears to be discolored unless that is just the shadow.

Pretty sure they are regular HG2879's. The "16D08" version has been the "defacto" Toshiba 2SC2879 drop in replacement for several years now. The HG2879C, a different animal, is marked as such on the transistor.

I used mine to tune a 1/2 wave RG-402 mobile feedline @ 27.35MHz.