[Elecraft] K3 and Band Data

[Bill Frantz]

One correction. The CONFIG:KIO3 setting can change the band 
outputs to specify which transverter you are using instead of 
which HF/6M band you are using. See page 19 of the manual.

I am using the band outputs as input to a Arduino based homebrew 
antenna switch with on problems.

73 Bill AE6JV

On 12/21/15 at 6:02 AM, w3fpr at embarqmail.com (Don Wilhelm) wrote:

>Charles,
>
>There are no CONFIG settings related to the band data outputs.
>
>What are the characteristics of the inputs of your external device?
>The K3 band data outputs have pullup resistors to provide +5 
>volts or zero volts to an external device.  If that device 
>requires +12 volts and zero volts, it will not work.
>I might also point out that some early K3s do not have pullup 
>resistors internally, but provide an open drain output.  Those 
>need external pullup resistors to +5 volts in the external 
>device or installation on the internal resistors in the K3 - 
>the internal resistors are documented as part of the K3ALC Mod.
>
>Do you have any other device (such an the KPA500 or other 
>amplifier) connected which also wants to use the band data 
>lines.  That can complicate the addition of another device on 
>the band data lines.
>
>73,
>Don W3FPR
>
>On 12/21/2015 8:20 AM, Charles Yahrling wrote:
>>hello all and merry xmas!
>>
>>For various reasons I need to interface an external device with Band Data
>>from my k3-100 via the ACC port.  The cable I have is sending the correct
>>pin signals to the device, which expects Yaesu Band Data compatible
>>protocol. AFAIK and can verify on the web Elecraft 0123 band data is the
>>same as Yaesu ABCD.
>>
>>But so far no joy at the device.
>>
>>According the my late-model K3-100 manual (Feb 2015) I have all the
>>necessary mods from the factory.
>>
>>I  want to verify I have not omitted any CONFIG settings.  I have left
>>KIO3 to the default of normal, tho I tried he others with no success. .
>>AUTOINF is not relevant as I am  not using serial port rig cat, so it is
>>left at the default of normal.
>>
>>Have I missed any settings?
>>
>>tnx in advance
>
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