[Yaesu] Re: Pin Diodes FT-990

[Robert C De Grippo]

Hiss...really???
I guess they forgot to include that in mine.
Or maybe it's a ..I have only had a IC751a and Yaesu 757GX11 in the past.
So maybe I have it but don't know what to look for.
But this is the BEST REC I have ever had.

What way would I make this HISS show it's self to me?
I usually only use a head set the OPTIMUS PRO-50MX. Rarely a speaker.


Stuart Rumley wrote:
> 
> John-
> 
> This IF hiss in the FT-990s has been something I've been interested in
> working on for some time.   I haven't had the time to dig into it up until
> now.  There are a number of places in the IF and AF circuits that I think
> are contributing to this problem.   What I would like to propose is that if
> you or someone else has an FT-990 that I can use to evaluate this problem I
> will fix the problem and make the mod available to the newsgroup.   Of
> course I would return the loaned radio and I would also need someone to
> supply an extender card as well.  Kind of provocative but maybe we can make
> this otherwise good radio close to perfect.

-- 
Bob

Middleburg Fl (South Jacksonville)
ICQ 13912841
Web Page http://home.earthlink.net/~kr4da

Ham Radio Calls: KR4DA FG/KR4DA J79DA

QSL MGR for FG5BG CQWW SSB 2000 ONLY
QSL MGR for J75J  CQWW SSB 2001 ONLY
QSL MGR for J79DA 2001 Dominica W.I.

Motorcycles CBMMA #4
1977 XS750D 1J7008405
1997 Vmax12J VMOA #504