MRMap Development Team 10/01/2009
This is my own radio so as you would expect, the MRMap data addresses are for my own
callsign. Here you would substitute your own information and the correct values for your team.
As per previously published information, ‘FFSK ANI’
means you will send your callsign (Own Data Ad-
dress) when you release the PTT and ‘GPS Report-
ing’ means the GPS position report will be tagged
onto this if you have a GPS mic fitted.
‘Mute speaker during FFSK’ does exactly that and
largely removes the data noise from the radio
speaker.
‘Immediate Message Display’ is nothing to do with
silent GPS but means text messages are displayed
immediately rather than stored with the little
envelope symbol being shown.
‘Time Interval’ is the new GPS beacon function for
those wishing to use it and here my radio is set to
automatically send it’s position every five minutes
regardless of whatever else happens.
‘FFSK Data Rate’ is always 1200 baud.
‘ Que on Carrier’ means the radio won’t
send data if the channel is in use (and is
very important!)
‘FFSK Lead-in delay’ is the amount of
time in milliseconds that must elapse
after you release the PTT before the
GPS position report is sent. This time
must be greater than the estimated
200ms of hang time for the CTCSS
mute gate of the receiving radio. This
means that the FFSK data is sent after
the mute has closed on the receiving
radio and is therefore not heard in the
speaker.
‘Data CTCSS’ must
say ‘Undefined’
and not ‘Unchanged’
‘Use LID for FFSK ANI’ means that the
lead-in delay will be used after the PTT
is released and was a requested func-
tion added by TMC. If you use an older
version of the FPP, then this and other
functions may not be available.
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