[ICOM] 60M on the 706MKIIg

[Bruce]

Looking at the schematic for the PA filter unit it shows switching at 
4.0-7.999999MHz
(next filter switch's at 8.0MHz) and not at 5MHz like the 756 series 
does..but I have no idea as to the filter bandwidth..no time to sweep 
the filter unit and see what all the filters BW are, sorry.
73's
Bruce W7BCW
At 11:29 AM 3/25/2007, you wrote:

>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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