ARRL

ARRL General Bulletin ARLB047 (1995)

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ARLB047 HF auto digital detailed
 
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ARRL Bulletin 47  ARLB047
>From ARRL Headquarters
Newington CT  May 2, 1995
To all radio amateurs 
 
SB QST ARL ARLB047
ARLB047 HF auto digital detailed
 
The FCC has released its Report and Order in PR Docket 94-59,
concerning HF digital communications in the Amateur Radio Service.
The new rules, effective July 1, 1995, permit automatically
controlled HF RTTY and data stations to communicate with one another
in the following segments: 28.120 to 28.189, 24.925 to 24.930,
21.090 to 21.100, 18.105 to 18.110, 14.095 to 14.0995, 14.1005 to
14.112, 10.140 to 10.150, 7.100 to 7.105, and 3.620 to 3.635 MHz.
 
The new rules also permit manually controlled stations to initiate
communication with automatically controlled HF RTTY and data
stations.  In this case the automatically controlled station may use
any frequency authorized for such emissions, but may occupy a
bandwidth of no more than 500 Hz.
 
Automatic control must cease upon notification by an FCC engineer in
charge that the station is transmitting improperly or causing
interference to other stations.
 
The FCC said it recognized the concerns of those who opposed the
proposal on grounds that such operation could interfere with other
amateurs, but that it believed the provisions adopted would be
adequate to minimize such interference.
 
More information is on page 71, August 1994 QST.
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