Search results

To test RX put small signal generator a kilometer away or so. (TinySA) To test TX use field strength meter, TinySA or similar. Mike

SCU have nothing to do with SWR. Check your antenna system

My first and only QRP rig: IC-705. Brilliant technology. Only thing that annoys me is connecting speakerphone. Why no regular mic socket? Mike

Very good SSB filter they had installed. Much narrower, than in chickerbanders.

Another step to implement the digital passport (ID) 1984 was not SF, but prophecy. Mike

I use blue plastic pipe used for water plumbing. Cut it lengthwise. Mike

Celcius

I have -13 to -18 overnight since two weeks here :) -8 or 10 during day. Want trade? Mike

Vertical endfed antenna compared to GP always lose. Imax, Antron were explained, modelled and so on, there nothing more to add. In Maco I would add more radials, since it is current fed antenna with maximum current at the bottom. It will improve it's performance. Of course antenna should me...

That proves only how good was propagation at the time. Nothing else. Mike

So coax is part of the antenna. On RX and TX. It is possible, that antenna is not picking the noise, but coax is. Another thing is proximity of the antenna to metallic objects, the way the coax goes and so on. Some reading: https://www.w8ji.com/common-mode_noise.htm...

Dipole is horizontal or vertical? Witch 1:1 balun, choke? Mike

Nice dummy load.

Pearce-Simpson Super Cheetah I had dozen of them on the bench. That service manual should help. Mike

Continue here https://www.worldwidedx.com/threads/crt-hercule-turbo-no-modulation.270827/#post-868155

He is asking about that in 4-5 threads. Already responded on one of them

Apply audio from signal generator on microphone socket, put it on TX and check if on pin1 marked blue you have a signal from generator. If not, follow red line back to mic socket to find where it disappear. Mike

Ok, lets start. Link schematic for your radio. Mike

And that's a reason to post in old threads? We unite in pain. What measurements and tests you done so far? Mike

My bad. I did it over perfect ground. I will redo them later over real ground. 20m height over real ground is like that. Dipole is on Y axis