G7JJF APRS Client · Manual App home PDF

Chapter 14

APRS Services

Many useful APRS services are robots that you message: you send a short command and get the answer back as a message. Menu → Radio Tools → APRS Services gathers the common ones on one screen, with forms that build the commands for you and a command reference for each. Choose a service from the chip strip at the top. Answers arrive in Messages as a conversation with the service.

Note. Commands go over APRS-IS when you are logged in, otherwise by RF to be passed on by an iGate — so they work from places with no phone signal. Each command is limited to 67 characters.
ServiceWhat it doesExample
ANSRVRGroup announcements. Check in to the weekly APRS Thursday net, join, leave and list groups.CQ HOTG 73 from G7JJF
CQSRVRSend a CQ to a group (one per 30 minutes).CQ GROUP message
WHO-ISLook up a callsign (name and location from QRZ.com).G4ABC or F G4ABC
EMAIL-2Send a short e-mail; set up aliases.me@example.com Running late
EMAILSimple e-mail gateway.address message
SMSGTESMS text messages — USA and Canada numbers only.+15551234567 message
WXBOTUS National Weather Service forecasts and METARs.IO93md today
WXYOInternational weather forecast by grid or callsign.IO93 tomorrow
WXNOWCurrent conditions at the nearest weather stations.n 3
JOKEJokes, quotes and fortunes from APRSD.
APRS OTAOn-the-air activity: host, chase and QSL activations.HOST description
APSPOTSelf-spot POTA, SOTA and WWFF activations.! POTA G-0123 7.144 SSB
APRS2SOTASpot a SOTA activation on SOTAwatch. Callsign must be registered at sotaspots.co.uk.G/CE-001 144.320 SSB
FINDFind a station's location.G4ABC
REPEATNearest repeaters to you.nearest
UKRPTNearest UK repeaters from the ETCC list, by band, mode, locator or another station's position; one repeater's details. Distances in km or miles (remembered for your callsign). Buttons for 2 m FM, 70 cm FM, DMR, D-STAR, Fusion, MORE and miles/km.2M FM, 70CM DMR IO93LC, INFO GB3NF, KM
UKNODESNearest UK iGates, digipeaters, LoRa and packet nodes heard on APRS-IS in the last day; one node's details. Buttons for All, iGates, Digis, LoRa, LoRa iGates, Packet, 2 m APRS, MORE and miles/km.ALL, LORA IGATE, PACKET IO93LC, GB7CAM
WLNK-1Winlink e-mail via APRSLink.SP to$subject text
NWSSubscribe to NWS alerts by US ZIP code.
MPADWorldwide weather by place, grid or your position, plus METAR/TAF, CWOP, satellite passes, repeaters, sun and moon times, DAPNET pager messages and more.Lincoln; gb tomorrow
ISSNext ISS pass for your last beaconed position — works over RF.pass?
QRXMailbox: stores messages sent to you while you were off air and alerts you when you return. Register once with REG.I, R, RLY ALL
APRS2TGMessage a Telegram user (they must have started the gateway's bot).msg @user text
WTSAPPMessage a WhatsApp number.@+447700900123 text
IRCChat channels over APRS./join #lounge
QUIZMEAmateur radio practice questions.Q
ECHOMYReplies with how many hops your message took and the distance — a path test.TEST

Robots come and go: if one stops answering, the service may be off air. ISS and QUIZME in particular could not be confirmed as running when this manual was written.

#APRS2SOTA — spotting from a summit

SOTA (Summits On The Air) activators post spots — summit, frequency and mode — on SOTAwatch so chasers can find them. The APRS2SOTA service sends the spot as an APRS message, so it works from a summit with no phone signal: over RF through any iGate that hears you, or over APRS-IS when you are logged in. Register your callsign once at sotaspots.co.uk; spots from unregistered callsigns are ignored.

  1. Open Menu → Radio Tools → APRS Services → APRS2SOTA.
  2. Enter the summit reference (e.g. G/CE-001), frequency (e.g. 144.320 or 7.032) and mode (SSB, CW, FM, AM, DATA or DV). Add an operator callsign if it is not your own, and a short comment if you like. Everything except the comment is remembered for next time.
  3. Tap Spot me. QRT tells chasers you have gone off air; QSY posts a new frequency.

The gateway acknowledges each spot, and the ack appears under APRS2SOTA in Messages. Keep beaconing on the way up — your positions show on aprs.fi and SOTA mapping sites.