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Yes, I want to join. ________________________________ Sent: Monday, October 2, 2023 1:26 AM To: [email protected] <[email protected]> Subject: [Yaesu-FT-980] CONFIRM JOINING

Confirmed

Hola EA1FC ! To understand the purpose of this constant current source, first you will see that the rectifier diodes and the capacitors provide a negative supply (more negative than the emitter of

Sorry mistake, FP-707 uses 0.1F after rectifiers, not 0.1mF as I said.

Hallo F5RCT I dont really undestand the constant courrent circuit Q01, even if I have known it since FP-707. I know what it does, but I dont know how it does it. BTW Yaesu has always used too much

After a repair I documented in other thread, I tested it and "best input voltage" was 200V (wired for 234V) for clean 100W out. I mentioned there too about the advantage of lowering voltage to

Hello dear OMs, Personally, I don't see the point of installing a crowbar circuit. This circuit protects against a possible overvoltage that could result from the destruction of the power transistors

I use my FT-980 mainly as a receiver. I have INRAD Xtal 455kHz filters. So I decided long ago to remove the 24V fuse. I heard alarms about PA destroyed by 24PS failure destroying PA transistors by

Hi all. How do I connect my Q5signal transverter to my FT-980? Also what is the best methode for connecting my sdrplay to my FT-980? 73 de Bent LA0GE

Pete, None yet. It does seem to be heat-related, though. I can keep the rig in a cool basement and run it for months without issue (which I did as a test until recently). This is going to be an

Any resolution on this issue? My FT-980 has the same problem. Spinning the VFO knob results more in flickering of the frequency but no significant change in frequency. If I hold the up/down button on

I was given a nice looking 980 apart with a broken attenuator shaft. I fixed that, and cleaned/lube all controls. It did not want to go to Ham fr Gen coverage and I tracked to and replaced a 40 pin IC

Wald, many thanks for the reply. I had no idea that it would not transmit in the GEN mode. Guess I had better read the operation manual that I downloaded. But I did try the Ham band button and nothing

Jim, Just to eliminate the cockpit errors... you are in HAM mode, right?? Not GEN??? You probably do not realize how many times I tried to call someone while in GEN mode...?So please confirm and

Hello and I am new here. I am Jim VE1RB and I have a friends Yeasu FT-980 on the bench and have been working on it most of this week. The receiver appears to work okay but nothing out of the

You've made my day! The 980 lives on! Just to reiterate, the grain of wheat bulb fuse was blown and it saved the front end transistors. As a bonus, it is in an easy place to get to, so I won't have

*Hi Ed, If you are lucky the "grain of wheat" receiver input fuse bulb has blown. See eBay # 165671785895. Try temporarily shorting out the grain of wheat bulb to see if receive improves.* ** *Not

My 980 just failed and I am looking for help: The good: I have display & transmit on all bands The bad: I can only receive well in FM mode.? SSB and AM are nearly dead.? I can hear very strong SSB

Good news Fred - count me in to try the alpha version! Peter G0LQU Fred_N8YX wrote: