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Hi James, Welcome to the group! Before powering it on, I would first open it up and take a look inside. Members have been putting some hi-res pics in the Files section to help others. The "Technical

I have just picked up a Rather Tatty and quite heavily abused Yaesu FT-980 that has not been cared for at all by the look of it, I will upload photos soon, but was after a little advice. The unit was

Got numbers 1 and 2 ready to go as soon as your filters arrive, Wald. The other things I need to do to these are to put a new battery backup harness in one and replace the FSK Unit in another. Seems

It often happens that I can work on my radios only once in a while.? There was a period when I had three 980s gutted out for various repairs that took weeks to complete.? To avoid errors I placed

Progress on two of three, and insight to problems with the third. I installed an AM and a narrow CW (250Hz B/W; 8.9MHz CF) filter in one of the queued-up '980s today and used that radio to test my

These groups need a "Belay that..." button due to what happened next. As soon as I hit "send" on my previous message I went to check on the rig, and the misbehavior which prompted me to replace TC01

For all who have repaired the VCO/PLL unit: Did you replace the electrolytic capacitors when you had the unit out of the radio? I just replaced TC01 on the first of two boards and so far it seems to

Btw, a couple of months ago I was lucky to grab an SP-980, for sale here in Italy by a specialized ham radio dealer, of course as a pre-owned unit. It is a very rare item, specially here in Italy

One on the auction site at the moment, though a little more than you want to spend. 73 - Fred, N8YX

If someone has a SP 980 for less than $80 let me me know. Two deals have fell thru..Randy ________________________________ Sent: Monday, December 13, 2021 1:30 PM To: [email protected]

Hi Mat, Definitely, a tiny amp could compensate the filter loss. I thought of that but run out of steam.? Also, I like to keep the equipment as original as possible.? My cascaded CW filter mod was

Dave, Not sure - going on some data from the FT-301 group. Randy, W7CPA managed to get ahold of the JA-release documentation for an FP-301D (w/ ID timer) and within was the layout for programming the

Fred, ? Thanks for the ramblings.? I depend on Wald for my FT-980 support.? I have not seen a tech supplement from Japan.? Chip may get me one.? Do I need it translated or is there one in

More assorted ramblings on the Aux Band ROM: The device is listed as a TBP18SA030. Equivalent to an NS82123 and similar. These can be found on the auction site and via a few other sources...but the

Dave, Best way to get extra coverage (IMHO) is for the group at large to reverse-engineer the Aux Band PROM programming, or to possibly get ahold of a JA-issue Technical Supplement (which - if like

Chip K7JA told me that for best CW use the 600HZ filter and notch/audio filter for best results.? Chip is a top notch CW Op and was VP of Yaesu NA at the time. He told me to stay away from the Yaesu

Hi Wald, Would it be feasible to add a 6-dB or so amp just prior to the filter (I think most 6-pole xtal filters run about 9dB loss for CW ?)? That should compensate enough for the loss before the

Let me have a look at my filter stash and see if I have enough to filter all of mine up. If not I'll be in touch off-list. May also grab these for my FT-726Rs. Thanks! 73 - Fred, N8YX

Fred, I used XF-455MC, 600 Hz BW 73, Wald N4PL

Which filters did you use, Wald? I may be interested in them. 73 - Fred, N8YX