On Wed, Dec 30, 2009 at 1:28 PM, Joe Subich, W4TV <li...@subich.com> wrote:
>
>
>> A while back, I made a suggestion to Wayne that perhaps the
>> "TX inhibit" pin on the ACC port could be given another purpose
>> - to invoke "TUNE". I envisaged a new config setting like
>> "CONFIG:TX INH" = "HI=Tun" or "LO=Tun". Wayne seemed to think
>> it wasn't a bad idea, but would be very low priority, based on
>> demand. It seems like this model may work for the Quadra
>> application too, without having researched it at all.
>
> While repurposing the "TX Inh" pin has appear for non-Quadra users,
> it is a step backward when the Quadra or FL-7000 is used since
> both of those amplifiers utilize the inhibit input ("Linear"
> in most Yaesu manuals).
OK.
> If an antenna tuner has an output that holds causes the transceiver
> to generate a carrier, there is no reason that it can't be tied to
> the "key" jack as long as the K3 will generate a carrier whenever
> the Key jack is closed.
Except that that produces full output power, where I want "CONFIG:TUN
PWR" (which is not not "nor").
~Iain / N6ML
> If DigOut 0 could be used to generate a 750 ms (greater than 600
> msec) contact closure to ground if ATU Tune is pressed when the
> KAT3 is not fitted or is turned off - preferably on a per antenna,
> per band basis, and set the power level to the "Tune" level for
> that transmission only - if the Key In jack generated a carrier
> on all modes, the K3 would be instantly compatible with any tuner
> that used the Icom AH-3/AH-4 interface and could use the ATU Tune
> button to initiate tuning.
>
> 73,
>
> ... Joe, W4TV
>
>
>
>
>> -----Original Message-----
>> From: dse...@dseven.org [mailto:dse...@dseven.org] On Behalf
>> Of Iain MacDonnell - N6ML
>> Sent: Wednesday, December 30, 2009 3:02 PM
>> To: li...@subich.com
>> Cc: Mike K2MK; elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] K3_CW_Data_Mode
>>
>>
>> On Wed, Dec 30, 2009 at 6:42 PM, Joe Subich, W4TV
>> <li...@subich.com> wrote:
>> >
>> >
>> >> The K3 tune button already works in Data mode. At least in AFSK A.
>> >> Did I misunderstand the question?
>> >
>> > Yes, you misunderstood the purpose of the question.
>> >
>> > The Yaesu Quadra provides a contact closure when the T-F
>> Set button on
>> > the Quadra is pressed. The T-F button causes the Quadra tuner to
>> > retune, etc. if it is pressed and the amplifier gets at
>> least 75 Watts
>> > drive.
>> >
>> > If the K3's "Key" (straight key) input were active in data
>> modes, the
>> > T-F output from the Quadra could be connected to the Key
>> jack and the
>> > K3/Quadra interaction would be fully automatic (if one used
>> the N0SS
>> > designed cable) just as it is with any of the Yaesu transceivers.
>> >
>> > Unfortunately, the K3 does not have an unused DigIn line
>> that could be
>> > used as a dedicated "T-F input" but enabling the Key input in all
>> > remaining modes (Data, AM, and FM) would be an entirely
>> satisfactory
>> > solution. If closing that contact were to use "Tune PWR" in
>> > Data/AM/FM, it would be icing on the cake.
>>
>> I have an automatic antenna tuner that can "tell" the rig
>> when to transmit, for retuning purposes. A while back, I made
>> a suggestion to Wayne that perhaps the "TX inhibit" pin on
>> the ACC port could be given another purpose - to invoke
>> "TUNE". I envisaged a new config setting like "CONFIG:TX
>> INH" = "HI=Tun" or "LO=Tun". Wayne seemed to think it wasn't
>> a bad idea, but would be very low priority, based on demand.
>> It seems like this model may work for the Quadra application
>> too, without having researched it at all. If there's enough
>> demand, maybe it could be reprioritised...
>>
>> ~Iain / N6ML
>
>
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