[GreenKeys] Can we do tty 2 meters!>?AFSK ON FM? (was ] Hamtesting)

[Ralph Mowery]

There is no differance in the ammount of power used for FM voice or rtty, unlike a ssb transmitter where there is about a 3 to 1 average differance between ssb voice and rtty.

As most ham rigs are designed to put out the rated power at 13.8 volts, you might try cutting the voltage to just over 12 volts if you can.  This will drop the power back some.

Even at this it depends on the FM transceiver.  You might want to put a small fan on it if it does not have one.  Some 2 meter transceivers will take it and some won't .  I would keep an eye on it and feel the heatsink from time to time.  

Around here years ago about 20 of us were using some Clegg 220 transceivers and they would be keyed down for long times to send lots of pix.
Never did know of a failed one due to the long tx time.


  ----- Original Message ----- 
  From: COURYHOUSE at aol.com 
  To: rmowery28146 at earthlink.net ; greenkeys at mailman.qth.net 
  Sent: Tuesday, November 19, 2013 1:13 PM
  Subject: Re: [GreenKeys] Can we do tty 2 meters!>?AFSK ON FM? (was ] Hamtesting)


   I have a  2 meter  Icom.. I  think  all it   does is  FM. 

  Probably  would be   good  NOT to  run it  on full power  if  you  were send   a big  picture  file  eh!?
  I am not  sure  how  well these   units  do in a long  key down condition... Any  Advice!?

    I  have now   12  TUs  some  I am  sure  are non-functional  museum display items   but  some  show  life  ...(time to start  testing  some...)

  Larry... Gil.... want to experiment  with this  some!?


  ED#  www.smecc.org 

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