bill, the same filter is used for BOTH transmit and receive. I have not put one in, but it's a simple matter of un-plugging the old one and pushing the new in its place. most of the time that's all y
bob, isn't that assuming that you're using an external keyer? I designed a small circuit board that will go inside the argo v and will provide powermosfet output. the input is optical coupled to the
You're right, Jim, I ordered the LMR400 and had a bit of worry about how well the copper clad would hold up to the soldering iron. seemed to work okay, but that stuff sure is hard to work with. Mike
Well gang, the subject line says it all. I am in need of a paragon logic board. There is no display, all the LEDs light up, or some LEDs light up, or randomly they light up at power turn on. Thought
Hi, Bob, no I have not tried that yet. it is kind of a bear Getting that PCB in and out. If I recall that's c5 on the logic board. Right? I am not sure that is the problem. I have tried turning the r
Bob and the group, The project continues, no joy insight, the microprocessor oscillator is not running. So, is it the Crystal or the microprocessor? The Crystal is not hard to come by. EBay has them
I have new ones coming. Ill wait till they show up as removal of the logic pcb is a kicker. While there is a 22 of cap and a resistor used in the oscillator I would suspect the rock before the cerami
Bob and the gang When the new parts come in I plan on changing out the reset cap since the pcb will be pulled. I mean why not? Mike wb8vge Sent from my iPhone
Boys and girls, the replacement cpu and micro processor crystals arrived. The first, and easiest, was to insert the cpu.... no joy so removed the logic board, installed a new crystal and lo and behol
Gang, I'll have to jump in here, too. I remember reading in one of the antenna books that some guy, to prove a point, worked DXCC using a light bulb as an antenna. But... Several years ago I homebrew
Thanks... I knew I read about that someplace. changing the length of feed line, in my opinion, has always been an issue. You can't make it shorter, it still has to go from point a to point b and usin
Rick Iam using open line and plan on 160 meter work. That's a lot of open line to wind around a barrel. My neighbors would love to see that next to the basement window. Mike wb8vge Sent from my iPhon
Interesting conversation! So what I am reading is this. Use a 1:1 current balun remote to the tuner to use my 600 ohm feedline. Now Somewhere along the way, depending on the length of the coax betwee
I quite aware that open line is generally considered lost less feed line. What threw me was the use of a 1:1 balun instead of a 4:1. That's the head scratcher. Mike wb8vge Sent from my iPhone On Jul
Bob, I can't explain it. What I know is that every antenna tuner I've ever own, every one that is currently in production, has a 4:1 balun inside. if what you, rick, and everyone else is saying is ri
Bob, I too agree it's time to kill this one. I have learned a lot. And I promise I'll get a 1:1 balun and a short hunk of coax for the connections to the 260 foot doublet I plan on putting up. Like I