[ICOM] ICOM 736 on 60 meters

[D C *Mac* Macdonald]

Hi, Larry. 
 
My IC-746 (original) had its tuner function fail 
above 3.90000 MHz. Works fine below that freq. 
Radio works fine 3.9 plus either to dummy load 
or LDG tuner. 
 
I wonder if use on 5 MHz may have caused the 
tuner failure. Any ideas? We may have to retract 
my comments at the end of your page. 
  
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* k2gkk at hotmail.com * 
* (Since 30 Nov 53) * 
* Oklahoma City, OK * 
* USAF, Ret (61-81) * 
* * * * * * * * * * * 
 
 
 
> Date: Wed, 14 Mar 2012 21:22:29 -0600
> From: xxw0qe at comcast.net
> To: icom at mailman.qth.net
> Subject: Re: [ICOM] ICOM 736 on 60 meters
> 
> Thanks for remembering me :)
> 
> Take a look at http://www.w0qe.com/60m_operation.html and pay close 
> attention to what frequency the radio switches the 80m TX filter to 40m 
> filter. If the radio wants to use the 80m low pass TX filter on 60m you 
> will most likely find that the radio draws too much power has has low RF 
> output. After "opening up" the radio you can hear relays click when the 
> output filter is changed.
> 
> 73,
> Larry, W0QE
> 
> On 3/14/2012 8:11 PM, D C *Mac* Macdonald wrote:
> > A paper on Icom rigs that are or aren't capable of
> > being put on 60 meters was authored by Larry, W0QE.
> >
> > The Icom IC-736 is NOT covered, so I don't know if
> > that rig can be expanded to cover 60m. It all depends
> > upon how the various bandpass filters are placed in
> > the spectrum.
> >
> > That website suggests you write to Larry with any
> > questions. He MAY have a definitive answer for you.
> >
> > You also may wish to consider contacting Icom to ask
> > your question.
> >
> > http://www.bnk.com/w0qe/60m_operation.html
> >
> > * * * * * * * * * * *
> > * 73 - Mac, K2GKK/5 *
> > * k2gkk at hotmail.com *
> > * (Since 30 Nov 53) *
> > * Oklahoma City, OK *
> > * USAF, Ret (61-81) *
> > * * * * * * * * * * *
> >
> >
> >
> >> Date: Wed, 14 Mar 2012 21:00:57 -0500
> >> From: wa9vrh at dishmail.net
> >> To: icom at mailman.qth.net
> >> Subject: Re: [ICOM] ICOM 736 on 60 meters
> >>
> >> HI Gary,
> >>
> >> Thanks for the information!
> >>
> >> 73 Larry WA9VRH
> >>
> >>
> >> On 3/14/2012 8:32 PM, Gary P. Fiber wrote:
> >>> That radio is old enough you have to open it for all band transmit.
> >>> It was called a "MARS" modification in those days. likely www.mods.dk
> >>> will have that information.
> >>>
> >>> Gary K8IZ
> >>>
> >>>
> >>>
> >>> On 3/14/2012 1:25 PM, Larry WA9VRH wrote:
> >>>> Hi All,
> >>>>
> >>>> How do I unlock my 736 so it will transmit on the new 60m frequencies?
> >>>>
> >>>> Thanks!
> >>>>
> >>>> Larry WA9VRH