[ICOM] 746 Orig on 60 meters

[Gary P. Fiber]

Jim,

I was employed at Icom America when the IC-746 was introduced. Though I do not
know for sure if operation on 60 meters will have any effect on the low pass
filters. I have to think there would need to be a lot of current drawn or
terribly high voltages generated to harm any of the filter section.

I am sure others on this list are or have operated the original IC-746 out of
band and or on 60 meters.

Gary K8IZ



> I have the mod BUT I seem to remember someone told me a while back that the
> 706 would work fine but the 746 filters would cut it pretty bad.  I do not
> want to damage the radio.  Question is if it "hurts" or strains the radio to
> operate in that manner.
>
> Thanks for your response,
> 73, Jim
>
> ----- Original Message -----
> From: "Gary P. Fiber" <gfiber at clearwire.net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Wednesday, December 06, 2006 11:55 AM
> Subject: Re: [ICOM] 746 Orig on 60 meters
>
>
>> You will have to do the " MARS " modification to open the transmitter. As
> with
>> most of Icom's older products, they were not designed to transmit on 60
>> meters.You could find the transmit low pass filters impede that a bit at
> 60
>> meters. Generally once opened the transmiter's will function from 1.8
>> to 30 MHz
>> with some possible power dips at the end of the low pass filter ranges.
>>
>> > Does anyone know if the original 746 can be modified to function on
>> > 60 meters?
>> > Are there filter or anything that will hamper or prevent operation
> there?
>> > Thanks es 73, de Jim KG0KP
>>
>> Gary P. Fiber K8IZ
>> GROL PG-19-6691
>> Washington State Resident
>> ----
>> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>> Icom FAQ: http://www.qsl.net/icom/
>>
>
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
>



Gary P. Fiber K8IZ
GROL PG-19-6691
Washington State Resident