MFJ-1270C/1274C MANUAL ADVANCED OPERATION
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Detail VHF Packet Operation
The previous chapter's discussion of "Basic Operation" contains enough
information for most packet operation. This section describes a few other
aspects of packet operation.
Station Identification
Your station identification (call sign) is set with the command
MYCALL
, as
described in the previous chapter. If you will have more than one station on the
air operating with the same call sign, they must be distinguished -- no two
stations can have identical station identifications, or the packet protocol will fail.
You can distinguish additional stations by setting the "secondary station ID", or
SSID. This is a number from 0 to 15, appended to the call sign with a dash:
cmd:
MYCALL W3IWI-3
If you don't specify the SSID extension, it will be 0, and the MFJ TNC won't
explicitly show SSIDs that are 0. If you want to connect to a station with a SSID
other than 0, or use such a station as a digipeater, you must specify the SSID:
cmd:
CONNECT AD7I-2
or
cmd:
CONNECT WA7GXD VIA N7CL-5
The MFJ TNC can send an automatic identification packet every 9-1/2 minutes
when your station is operating as a digipeater. You can enable this feature with
the command
HID ON
. An ID packet is displayed as follows by a monitoring
station:
W3IWI-3>ID:W3IWI/R
You can request a final identification as you take your station off the air with the
command
ID
. The MFJ TNC will only send identification packets if it has been
digipeating.
Automatic Operations
