User guide

MS-DMT Guide v1.04
Released 05-30-2014
2
WARNING: Do NOT use greater than a 2.8kHz filter on transmit or a 3.0kHz filter on receive.
NOTE: Authorized MS-DMT users with Amateur Radio licenses be aware that Military data modem
serial tone waveforms use 1200 or 2400 baud symbol rates which are NOT legal for all Amateur Radio
use on HF. FCC rules that took effect on 05 MARCH 2012 for 60m permit Data transmission use as long
as the emitted signal is held to 2.8Khz BW or less. FCC rules also allow 1200 baud symbol rate use for
data transmission at 28Mhz and above. Also, current FCC rules seem to permit use of military serial
tone waveforms for Digital Voice or Image transmissions were such transmissions are permitted. Future
FCC rule making will likely improve this situation.
NOTE: The release notes text file in the distribution .ZIP file may contain additional information beyond
this document for a build release that is more recent than when this document was last updated.