[ICOM] Icom 751A Questions...

[Edward Swynar]

Hi Alan,

Thanks for the note...

Well, there is no such control on the receiver, unless it's located inside
somewhere.

I suspect by "pitch control" the ICOM folks mean "BFO control"---and there
IS a BFO pre-set inside the rig. I hope to check ALL of the relevant
frequencies---including the BFO offset---with my frequency meter in the
coming week to try & narrow this down...

Wish me luck!

~73~ de Eddy VE3CUI - VE3XZ


*********************************


----- Original Message -----
From: "Alan Zack" <k7acz at cox.net>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Friday, October 30, 2009 6:27 PM
Subject: Re: [ICOM] Icom 751A Questions...


> Do you have a CW PITCH control? On the 756 series having the CW PITCH
> control too far off center will cause this.
> _______________________________________________________
> Alan Zack
> Amateur Radio Station K7ACZ
> Official USCG Auxiliary Comm Station
> Las Vegas, Nevada, USA
> Delta Rocket Quality Engineer, The Boeing Company, Retired
> Aviation Chief Warrant Officer,  U.S. Coast Guard, Retired
> http://www.geocities.com/k7acz
> http://gocoastguard.com
> http://www.uscgradio.net
> http://www.comm-one.org
> >
> > Edward Swynar wrote:
> >> Good Day All,
> >>
> >> I am the owner of an Icom 751A transceiver (serial #04386), which I
> >> purchased brand new in 1989. I have a question about the CW offset /
> >> memory
> >> board inside this rig, that I hope someone may be able to assist me
> >> with,
> >> from past experience...
> >>
> >> Specifically, all of a sudden---and on CW only---the transceiver's
> >> output
> >> signal is 2-KHz lower in frequency than the displayed frequency. I
> >> noticed
> >> this the other day when I called CQ: all of the stations responding
> >> were
> >> some 2.4-KHz below my displayed frequency, and I could work them only
> >> by
> >> activating my RIT.
> >>
> >> If I wish to answer another station's CQ, I must first set the
> >> station's
> >> frequency into BOTH of the rig's VFOs, then offset the transmitting
> >> VFO by
> >> some 2.4-KHz, and operate "split".
> >>
> >> This does not happen on either AM, or SSB---CW only (naturally,
> >> because it's
> >> my favourite mode!).
> >>
> >> The rig certainly IS useable this way, but I do NOT like it---I
> >> prefer to
> >> use just the one VFO for both receiving and transmitting, just as it
> >> "...used to be."
> >>
> >> I've been told by one seasoned veteran in such matters that the
> >> memory board
> >> inside the 751A (the circuit with the lithium memory battery) is the
> >> culprit, and should be replaced. Is this always the case...? Have
> >> others
> >> ever experienced this same condition, and if so, was the "fix" a
> >> replacement
> >> memory board...?
> >> Finally, are replacement after-market memory boards even available
> >> for so
> >> old a rig...?
> >>
> >> Any & all information is welcomed and appreciated. Thanks in advance,
> >> & my
> >> vy
> >>
> >> ~73~ de Eddy VE3CUI - VE3XZ
> >>
>
>
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