[ICOM] 60M on the 706MKIIg

[Mike - KD9KC]

You bring up a very good question.

It seems the 60m band is in the 4.000-7.999 MHz filters.  And that makes
sense to me.  But I wonder just how good or bad the filters really are on
60m.  I am certain other services are using 706s - we had an Army MARS net
on 5.1xx MHz years ago.

I wonder if anyone has any idea, or the time to research it.

Y-all have a GREAT Sunday evening.

Mike - KD9KC.
M.A.R.I.E.
El Paso, Tx. 
www.w5dpd.org

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> -----Original Message-----
> From: icom-bounces at mailman.qth.net 
> [mailto:icom-bounces at mailman.qth.net] On Behalf Of K8CM
> Sent: Sunday, March 25, 2007 6:29 PM
> To: icom at mailman.qth.net
> Subject: [ICOM] 60M on the 706MKIIg
> 
> 
> I don't wish to take away from Bruce's note of caution  ...  
> but  ...  I'm wondering, does anyone know for sure?  At what 
> point does the '706 switch one filter to the other and what 
> are the upper and lower half-power points for each filter?
> 
> 73  <>  Carl
> 
> At 09:08 AM 3/24/2007, you wrote:
> >Be very careful with this 60 meter mod. The problem is in 
> the PA filter 
> >section. Most Icom radios switch the PA filter to the 7MHz band at 5 
> >MHz. Trying to run 100 watts thru that filter section could overheat 
> >one or more of the inductors and burn them plus the PCB. 
> Power should 
> >be limited to 50 watts.
> >This was the case for the 756 series radios. I had to 
> replace a filter 
> >coil in the 7MHz PA filter section, it was totally burned up 
> and a test 
> >latter proved that. The coil temp was so hot I could have burned my 
> >finger on it. So use 60 meters at reduced power and you should be ok.
> >73's
> >Bruce W7BCW
> 
> 
> 
> ----
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