=== 5^READ-^
As a sysop you may read any message on the system
-=== 0^REPLY^Reply to the last message that you have read
-=== 0^REPLY <msgno>^Reply to the specified message
-=== 0^REPLY PRIVATE <msgno>^Reply privately to the specified message
+=== 0^REPLY^Reply (privately) to the last message that you have read
+=== 0^REPLY <msgno>^Reply (privately) to the specified message
+=== 0^REPLY B <msgno>^Reply as a Bulletin to the specified message
+=== 0^REPLY NOPrivate <msgno>^Reply as a Bulletin to the specified message
=== 0^REPLY RR <msgno>^Reply to the specified message with read receipt
You can reply to a message and the subject will automatically have
"Re:" inserted in front of it, if it isn't already present.
You can also use all the extra qualifiers such as RR, PRIVATE,
-NOPRIVATE that you can use with the SEND command (see SEND
+NOPRIVATE, B that you can use with the SEND command (see SEND
for further details)
=== 0^SEND <call> [<call> ...]^Send a message to one or more callsigns
See also TYPE - to see the contents of a file.
+=== 0^SHOW/MUF <prefix> [<hours>]^Show the likely propagation to a prefix
+This command allow you to estimate the likelihood of you contacting
+a station with the prefix you have specified. The output assumes a modest
+power of 20dBW and receiver sensitivity of -123dBm (about 0.15muV/10dB SINAD)
+
+The result predicts the most likely operating frequencies and signal
+levels for high frequency (shortwave) radio propagation paths on
+specified days of the year and hours of the day. It is most useful for
+paths between 250 km and 6000 km, but can be used with reduced accuracy
+for paths shorter or longer than this.
+
+The command uses a routine MINIMUF 3.5 developed by the U.S. Navy and
+used to predict the MUF given the predicted flux, day of the year,
+hour of the day and geographic coordinates of the transmitter and
+receiver. This routine is reasonably accurate for the purposes here,
+with a claimed RMS error of 3.8 MHz, but much smaller and less complex
+than the programs used by major shortwave broadcasting organizations,
+such as the Voice of America.
+
+The command will display some header information detailing its
+assumptions, together with the locations, latitude and longitudes and
+bearings. It will then show UTC (UT), local time at the other end
+(LT), calculate the MUFs, Sun zenith angle at the midpoint of the path
+(Zen) and the likely signal strengths. Then for each frequency for which
+the system thinks there is a likelihood of a circuit it prints a value.
+
+The value is currently a likely S meter reading based on the conventional
+6dB / S point scale. If the value has a '+' appended it means that it is
+1/2 an S point stronger. If the value is preceeded by an 'm' it means that
+there is likely to be much fading and by an 's' that the signal is likely
+to be noisy.
+
+By default SHOW/MUF will show the next two hours worth of data. You
+can specify anything up to 24 hours worth of data by appending the no of
+hours required after the prefix. For example:-
+
+ SH/MUF W
+
+produces:
+
+ RxSens: -123 dBM SFI: 159 R: 193 Month: 10 Day: 21
+ Power : 20 dBW Distance: 6283 km Delay: 22.4 ms
+ Location Lat / Long Azim
+ East Dereham, Norfolk 52 41 N 0 57 E 47
+ United-States-W 43 0 N 87 54 W 299
+ UT LT MUF Zen 1.8 3.5 7.0 10.1 14.0 18.1 21.0 24.9 28.0 50.0
+ 18 23 11.5 -35 mS0+ mS2 S3
+ 19 0 11.2 -41 mS0+ mS2 S3
+
+indicating that you will have weak, fading circuits on top band and
+80m but usable signals on 40m (about S3).
+
+inputing:-
+
+ SH/MUF W 24
+
+will get you the above display, but with the next 24 hours worth of
+propagation data.
+
=== 0^SHOW/PREFIX <callsign>^Interrogate the prefix database
This command takes the <callsign> (which can be a full or partial
callsign or a prefix), looks up which internal country number
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