> I want to disable the KEY OUT from the K3. I can use the DIGOUT1 and
> an external relay to do that, but it would certainly be cleaner to
> just disable the KEY OUT circuit. I find no command in the
> Programmers Manual to do that - am I missing something?
You *CAN NOT* disable Key Out. It is a hardware output from the T/R
circuit (7R line). Since 7R is high when the receive is on and low
when the receiver is off/muted there is *no way* to selectively disable
Key Out (see page 3 of the current schematic set).
This issue has been beat to death here ... it is a design feature of
the K3.
73,
... Joe, W4TV
On 5/31/2011 2:13 PM, Bill Myers wrote:
> I use a macro to control my external amp (not a KPA500). One macro reduces
> power to the drive requirements of the amp, the other increases the power to
> 85 W when I don't need the amp. When I activate the 85 W macro, I must
> disable the amp or it gets hit with the 85 W sending it into the protect
> mode. I want to disable the KEY OUT from the K3. I can use the DIGOUT1 and
> an external relay to do that, but it would certainly be cleaner to just
> disable the KEY OUT circuit. I find no command in the Programmers Manual to
> do that - am I missing something?
>
> Bill K6IFF
>
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