[RTTY] Yaesu FT-920 setup - HELP!!

[Ian White, G3SEK]

Mike wrote:
>Kyle,
>
>1.  First, be sure that you are, in fact, supplying the FS keying information
>to the 920 before suspecting the rig.  If you have an ohm meter, put it
>across the leads that you are connecting to the FSK jack on the 920. 
>Depending on
>what your sending, the meter should either show a short on keying or show
>SOME fluctuation.  If you are not getting any indication that the FSK contacts
>are being shorted for the duration of the mark tone, then you will have to
>correct that problem -- which would be from the output of your computer 
>or your
>Terminal Unit.
>
>2.  If you are getting an indication with a meter that the contacts are being
>supplied with a short when needed, then you need to be sure that you are, in
>fact, able to FSK the 920.  Make a contact on phone.  Tell the other operator
>that you will be sending a carrier and that when you touch a couple of wires
>together, the carrier frequency should shift slightly.  For this test, 
>it would
>be best to set the 920's FSK to USB.  However, the other guy should be able
>to tune around and hear your carrier and detect a shift in it when you touch
>the wires together.   Then, go back to SSB and listen to what he tells you.
>
>If you are unable to shift the frequency in this way, that would indicate
>that you still do not have the 920 set up correctly, or, it isn't 
>working right.
>
>3.  If you don't have  a small VOM with you, get one at Radio Shack and put
>it in your travel kit.  If you had one with you, you would be able to easily
>solve this problem.

If your FSK interface inverts the polarity, you will also need to set 
the transceiver menu to "reverse" keying.


-- 
73 from Ian G3SEK         'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek