Paul writes... Let me try and explain this in audio terms to make sure I have it right. I will be experimenting with PSK31 soon. When setting up an audio public address system, there will be at least
I spent the evening with the covers off the Omni V to try and address my audio clipping problem. For those who don't recall, the symptoms were clipping at fairly low listening levels by the time the
Tony Berg writes... Tony, those IF/AF mods were documented by Rick, VE7TK. I own his former Omni V.9. An owner between us had removed those mods, but I restored them last night. Rick had left that do
Tony Berg writes... Closer inspection of the Wiki modification revealed why I missed it. It was added a little over a month ago--after I gathered up information from that source. I should have checke
john.brewer@us.schneider-electric.com writes... All of the Ten Tec amps have the keying loop for QSK, it seems to me. My understanding of this operation is that the exciter won't excite until the amp
I'm having a persistent problem with an AL-811 and now I'm wondering if the way my Omni V is keying it might be part of the problem. Synopsis: When working Ducie Island, I tried to tune on 10 meters
Ed writes... Ed, thanks for the response. That's what I'm thinking, but I've already checked it all. The AL-811 is simple--there is the T/R relay, the input tank switched with the input bandswitch, a
Ed writes... I will do that. I did test it for DC continuity, and I suppose for there to be anything else wrong there would need to be some signs of heat damage, which I don't. If you think I should,
Bob McGraw - K4TAX writes... The band switches all look good and test good, with both DC and RF (at low levels from my MFJ-259) continuity through all bands. The problem behavior is the same no matte
Ed writes... Bingo! D16 was a dead short. I replaced it, and the amp now seems to work fine. Mine is older--doesn't have the transistor switching of the T/R relay; doesn't have the diode string in th
Donald L. Schliesser writes... I've built my station out of old stuff, and those who sold it to me thought they were getting just as good a deal as I did buying it. My standard of "good deal" is not
Thanks to those of you who helped me solve my amplifier problem. In testing so far, the Ameritron 811 is now functional, though I'm still waiting on an opportunity to test it on the air. The dummy lo
My new (to me) Centaur arrive on Friday, and this is a quick report from putting it in operation and comparing it to my AL-811. Executive summary: The Centaur is MUCH nicer, and even compared to a us
Martin Ewing AA6E writes... I'm not sure there is an ideal approach--each strategy for paying for ongoing software development has strengths and weaknesses. Volunteers are excellent for identifying n
Bill Ames writes... Sometimes the distinction between bugs and the lack of an important feature is obvious. But not always. That's where published functional requirements would provide clarity. New r
ron writes... There will always be those with the skills, time, and desire to develop code for their purposes, and some of those will do it well enough that others will want their products. That does
Martin Ewing AA6E writes... There is nothing about a properly constructed systems engineering process that prevents iteration. But also recognize that those who want a true SDR in the sense of a comp
wo8l@aol.com writes... It's worse that that for me. My basement ham shack doesn't have a loo. When I'm down there soldering stuff in the deeps of night and natures calls, I'm almost guaranteed to wak
Dr. Gerald N. Johnson writes... I'm imagining the scene. To avoid waking up my wife with a 2AM trip to the loo, which might generate a complaint that I should be in bed, I'm going to replace that wit
Patrick Signs writes... This is where new folks need to be drawn into the clubs, and under the watchful eyes of elmers. I certainly benefitted from that when starting on my station. To me, getting ne