[Amps] ICOM PRO III QSK

Joe Subich, W4TV lists at subich.com
Sun Dec 11 10:47:08 PST 2011


 > HSEND ->  [transistor switch]  ->  [ACC output in parallel] ->  amp

HSEND *is* the ACC output.  HSEND = HF SEND on the rigs with 144 MHz and 
higher as they also have a VSEND (VHF SEND), typically for 144
and 430 MHz.  For the HF or HF and 50 MHz only transceivers the pin
is labeled SEND.

73,

    ... Joe, W4TV


On 12/11/2011 2:32 AM, Ian White GM3SEK wrote:
> Joe Subich, W4TV wrote:
>>> I have seen that too but it was strictly limited to the IC-7000.
>>
>> The study I saw (not the AD5X article) was not limited to the IC-7000.
>> The "premature release" applied to all of the "small" radios 706/7000
>> as well as several of the full size radios - including 7700, 746Pro,
>> and I believe the ProIII - when using the ACC jack instead of the Send
>> relay.
>>
>
> Would it help to connect the two outputs in parallel, to get the fastest
> possible turn-on from HSEND, and then a slightly delayed release from
> the relay?
>
> HSEND ->  [transistor switch]  ->  [ACC output in parallel] ->  amp
>
>


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