[Boatanchors] TTY loop keying a CE 100V

[Eugene Hertz]

Hello all,

I am getting dangerously close to having my first station in operation having recently passed the general exam to get on HF.  I have teletype machines 28ASR and 28KSR in a loop with an ST6 providing loop current.

I would like to key my 100V from my TTY loop. I know the 100V has two inputs, FSK-1 and FSK-2 according to the manual, it mentions that FSK-1 is for use with a polar relay and FSK-2 is for use without a polar relay.

Can anyone give me a circuit diagram of how I can key the 100V with my 60ma TTY loop? One gentleman suggested that I need to use the loop to key either a relay or such, but I wonder why CE made two inputs with the distinction of what kind of relay to use for each if the end result was simply OOK (or short/open the FSK input contacts).

Anyone have experience running a tty loop with the 100V?
thanks in advance!  

I have posted this same message on the following qth.net lists (sorry if you belong to all three): Central-electronics, greenkeys, boatanchors

See you on HF !
Eugene kc2nwg