[1000mp] Band Data Connector

[D. J.]

You can use the band data on the Ten-Tec Titan and the Alpha 87/99  
but to my knowledge none others.  I have my titan wired up using the  
band data plug for silent switching.

Dale




On 29, Jul 2005, at 13:16, Garry Shapiro wrote:

> You will pop that transistor in a heartbeat. Sounds like you are  
> switching
> an SB200 or something equally old and unforgiving.
>
>
> -----Original Message-----
> From: 1000mp-bounces at mailman.qth.net
> [mailto:1000mp-bounces at mailman.qth.net]On Behalf Of Win
> Sent: Friday, July 29, 2005 8:08 AM
> To: 1000mp at mailman.qth.net
> Subject: [1000mp] Band Data Connector
>
>
> Pins 2 and 3 of the Band Data connector are connected to a  
> transistor switch
> driven by the same voltage that activates the TX GND relay.  I have  
> read in
> the past of people using this transistor switch to key amplifiers.   
> I am
> currently using the TX Gnd relay with an external transistor switch  
> for this
> purpose.  Using the transistor switch would take out a 10 to 15 ms  
> relay
> delay, allow me to turn off the relay eliminating the noise, and  
> greatly
> improve QSK operation.
>
> My question is, does anyone have any idea of the voltage and current
> limitations of this transistor switch?.  The circuit that I am  
> switching is
> about 125 volts without load and is 100 volts at 80 ma loaded.  My gut
> feeling is that it should be no problem.
>
> Win, W0LZ
>
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