In light of the recent move of WRCR to 1700 kHz, there may be users of the 10 kHz bandwidth SSTran AMT-3000 and AMT-5000 transmitters, in the Mid Atlantic and New England regions, who have been using 1700 kHz (even just around the house) and are now confronted with the task of finding a new frequency. I just found out from Phil Bolyn that there is a way to program 10 kHz SSTrans to operate at 1710 kHz, even though it was never published in the orignal owners/assembly manual.
Here is the 8-position DIP switch positions that will produce a carrier at 1710 kHz in these units:
1) ON 2) OFF 3) ON 4) OFF 5) ON 6) OFF 7) ON 8) OFF
ON=Up OFF=Down
It should be noted that the scheme published for 1710 with 9 kHz units does not work with the 10 kHz units. You must use the above scheme for 10 kHz units.
Also of interest is the fact that Phil has compiled an expanded list of frequency schemes for the 10 kHz models that range from 20 kHz to 2560 kHz(!). So if you've ever had aspirations to experiment with lowfers (adding a 1 watt linear amp) or with Part 15 broadcasting in the 120 meter shortwave band, you can now do so by asking Phil to send you a PDF of the expanded list. Just keep in mind that the standard carrier width in the shortwave spectrum is 5 kHz, so leave plenty of space around established services such as WWV's 2500 kHz signal.
... I just found out from Phil Bolyn that there is a way to program 10 kHz SSTrans to operate at 1710 kHz, even though it was never published in the orignal owners/assembly manual. ...
Good information, but note that the FCC field intensity limit for unlicensed operation of an AM transmitter on a carrier frequency of 1710 kHz is much less than legally permitted under FCC §15.219 when using a carrier frequency of 1700 kHz and below.