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-
- INFO BULLETIN
- TNC MONITORING CAPABILITIES
- BID: INFOTNC.004
-
- There are several commands in your TNC that will vary your monitoring
- capabilities. Listed below is a list and explanation of each of these
- commands. Set them to suit your particular needs.
-
- MONITOR - This must be ON for you to monitor anything. When ON,
- you see packets from other stations on the frequency you're tuned
- to. What packets you see is determined by other commands from the
- list below. If MONITOR is OFF, you see only packets sent to you
- while you're connected to another station.
- On some TNCs, such as the PK⌐232, MONITOR can be set to various
- parameter values:
- M 0 - All monitoring is disabled. (Same as MONITOR OFF.)
- M 1 - Only UNPROTO frames are monitored.
- M 2 - Adds monitoring of stations connected to another station.
- M 3 - Adds monitoring of connect and disconnect frames.
- M 4 - (Default setting ⌐ same as MONITOR ON on most other TNCS.)
- Adds monitoring of acknowledgement and busy frames.
- M 5 - Adds monitoring of Receive Ready (RR), Receive Not Ready (RNR),
- Reject (RJ) and Frame Reject (FRMR).
- M 6 - Adds monitoring of Poll/Final bit and sequence numbers.
-
- MALL - If MALL is ON, you receive packets from stations that are
- connected to other stations, as well as packets sent in unproto
- (unconnected) mode. This should be ON for "reading the mail".
- If MALL is OFF, you receive only packets sent in unproto mode by
- other stations.
-
- MCOM - If ON, you see connect <C>, disconnect <D>, acknowledge
- <UA> and busy <DM> frames in addition to information packets. If
- OFF, only information packets are seen.
-
- MCON - If ON, you see packets from other stations while you're
- connected to someone else. This can get very confusing, but is
- useful when your path is bad and you want to see if your packets
- are being digipeated okay. If OFF, the monitoring of other stations
- is stopped when you're connected to another station.
-
- MRPT - If ON, you see a display of all the stations used as
- digipeaters along with the station originating the packet and the
- destination station. If OFF, you see only the originating and
- destination stations. For example, if you have MRPT ON, you might
- see a transmission such as this:
- K9AT>WB6QVU,W6PW-5*: I'll be leaving for the meeting at about 7:30.
- If MRPT was OFF, the same transmission would look like this:
- K9AT>WB6QVU: I'll be leaving for the meeting at about 7:30.
- In the first case, you can see that the W6PW-5 digipeater was being
- used. The asterick indicates which station you were hearing the
- packet from. In the second case you have no idea if digipeaters are
- being used or what station you were receiving.
-
- HEADERLN - If you have this turned ON, the header of each packet is
- printed on a separate line from the text. If OFF, both the header
- and packet text are printed on the same line.
-
- MSTAMP - Monitored packets have the date and the time the packet
- was received if MSTAMP is ON. If it's OFF, the date/time stamp is
- not shown.
-
- I run my station with all of these commands, except MCON, turned ON
- so that I can really see what's happening on the frequency I'm
- monitoring. Try various combinations of these commands and then
- decide on the combination you like best for your station.
-
- 73, Larry, WB9LOZ @ W6PW.#NOCAL.CA.USA.NA
-
-