[Yaesu] Band Data connector splitter for 1KMP

[Joe Subich, W4TV]

John,

> It works fine, except for one small snag. If I switch the power off
> on the amp, my band decoder doesn't work, unless I unplug the Band
> Data cable from the amp.

Try adding diodes in series with each of the BCD lines from your Band
Decoder and the 1K-FA.  The problem is that when you tun off the 1K-FA
the pull-up voltage in the 1K-FA goes away and the 1K-FA pulls the BCD
lines low so the the Band Decoder sees "0000"!

73,

    ... Joe, W4TV


On 2/16/2012 3:26 PM, John Tait wrote:
> Hi Ted.
>                I do exactly that. I have a homebrew band decoder
> connected to my FT5K Band Data socket. I recently I added a new SPE
> 1K-FA amp. I just connected a pair of female in-line sockets in parallel
> with a male Band Data plug. It works fine, except for one small snag. If
> I switch the power off on the amp, my band decoder doesn't work, unless
> I unplug the Band Data cable from the amp.
>         Vy 73
>                John EI7BA
>
> On 16/02/2012 16:11, Ted Boerkamp wrote:
>> Hello everyone..Just want to ask the multitudes of Yaesu 1000MP users if
>> they
>>
>> have ever come across a circuit or product which allows you to supply the
>> Band Data
>>
>> info from the radio to more than one device???
>>
>> I currently have the FL7000 amp connected to my 1000MP and the Band Data
>> cable
>>
>> Is connected between the two for automatic band changes on the amp.
>>
>> Now I am trying to figure out how I can still provide Band Data info to a
>> Band decoder
>>
>> Board for automatically switching antennas if the Band data jack is already
>> used??
>>
>> Is there a splitter type cable or circuit available for this situation???
>>
>> Any ideas or feedback are greatly appreciated.
>>
>> Thanks
>>
>>
>> Ted Boerkamp  VE3SS
>
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