KENWOOD TH-D72 - APRS parameters

(last update 2011/sep/18)

The new KENWOOD TH-D72 handheld offers many APRS functions in a small unit. One proplem is, that users which are new to APRS often do not adequately configure their radio. That's why I offer you my settings. Important settings for a good working APRS network are in BOLD.


menu #menucommand #commandsettingcomment
11Battery 110 Battery Saver 0.03sec Important! With other settings the chance is high to miss incoming packets because your radio is sleeping.
30Basic Set 300 My Callsign LX3PR-7 Change to your callsign. Use SSID -7 to identify a human portable message capable station.
301Beacon TypeAPRSWe want to do APRS with the radio.
302APRS LockONSet this to on after having the right APRS frequency (144.800 for Europe).
31Int. TNC1310Data BandA-BandAPRS will function on the A-Band
311Data Speed1200 bpsAPRS data will be sent and received at 1200 baud
32Int. TNC2320DCD SenseD or RxD Band
321TX delay150 ms
33COM Portsettings are irrelevant for standard APRS
34Waypointsettings are irrelevant for standard APRS
35PC Portsettings are irrelevant for standard APRS
36My PositionEnter your position. This postition will be sent, when the internal GPS is switched off and BCON is pressed.
37Beacon Info370SpeedONYour speed is sent in position reports. Set to OFF if you drive excessively fast.
371AltitudeONYour altitude is sent in position reports.
372Pos. AmbiguityOFFThere is no reason to put errors in your position report.
38Comment381Position CommentEnrouteChoose a comment describing your current activity. Don't use EMERGENCY! unless there is a real emergency!
39 Status Text 390 Rate OFF Don't use a status text to keep your packets short. Use one if there is a special reason.
3AQSY (FREQ)3A0QSY in statusOFFSet to ON if you want to tell others on which VOICE frequency you are working on the B-Band.
3A1Tone/NarrowOFF
3A2Shift/OffsetOFF
3BPkt.Filter3B0Position LimitOFFSet to ON if you want to limit data you receive
3B1Filter typeAn ASTERIX (*) should be seen for all the options. Delete the ASTERIX with MHZ for the type of stations you do not want to display.
3C Icon 3C0 Person Choose an appropriate icon four your current activity. Don't use fancy icons when there is no special need to do so.
3D TX Beacon 3D0 Method SmartBeaconing
3D1Initial Interval5 min
3E Algorithm 3E0 Decay Algorithm OFF Doesn't make sense to set it to ON for low power portable.
3E1 Prop. Pathing OFF Doesn't make sense to set it to ON for low power portable.
3F SmartBcon1 3F0 Low/High Speed 3 - 50 km/h
3F1 Slow Rate 15 min When not moving you will TX a postition report every 15 minutes.
3F2 Fast Rate 90 sec When moving above 50 km/h you will TX a postion report every 90 seconds
3G SmartBcon2 3G0 Turn Angle 28 deg
3G1 Turn Slope 24(10deg/speed)
3G2 Turn Time 30 sec When taking turns, send a position report at most every 30 seconds.
3H PacketPath 3H0 Type *New-N
3H1 WIDE1-1 On
3H2 Total Hops 3
3INetwork3I0*APRS
3JWX Stationsettings are irrelevant for standard APRS
3K Digipeat 3K0 Digipeat(MyCall) OFF Only use your radio as a digipeater when there is a special reason to do so.
3LUIchecksettings are irrelevant for standard APRS
3MUIdigipeatsettings are irrelevant for standard APRS
3NUIfloodsettings are irrelevant for standard APRS
3OUItracesettings are irrelevant for standard APRS
3PUser Phrasesettings are irrelevant for standard APRS
3QAuto-Reply3Q0ReplyOFFYour radio shouldn't reply to messages automatically. Read your messages and reply to them!
3Q1Reply To*
3RReply MSG3R0Text-
3SGroup Filter3S0MessageALL,QST,CQ,KWD
3S1Bulletin (BLN)Set up a filter for your special bulletins.
3TSound3T0RX BeepMine
3T1TX BeepOFF
3T2Special Call
3UDisplay3U0Display AreaEntire AlwaysSwitch to something different if you don't like it.
3U1Interrupt Time5 sec
3U2Cursor ControlFollowed
3VUnits 13V0Speed, Distancekm/h, km
3V1Altitude, Rainm, mm
3V2TemperatureC
3WUnits 23W0Positionddmm,mm'
3W1Grid Format Maidenhead Grid Quite useful.
3XNAVITRA GPsettings are irrelevant for standard APRS
3YNAVITRA MSsettings are irrelevant for standard APRS

Keep in mind that transmitting an excessive number of position or status reports (e.g. a report every 15 or 30 seconds for a fixed station), is an enormous load for the capacity of the APRS network and might lessen the pleasure of others. Please check your settings!


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