What is this?

PicoAPRS in magazines (klick to open den article or title page).

PicoAPRS Firmware update available!

Hardware version V3 available!

PicoAPRS is NOW available by Wimo!.

PicoAPRS is NOW availible by Funk24!.

NEW: PicoAPRS is NOW available by DX Engineering!.

transceiver

KISS-TNC

Digipeater!

KISS TNC

Now about 27% smaller as V2!According to previous findings, PicoAPRS is the world's smallest APRSwith built-inand since the firmware version V014 also a stand allone "Fill-In APRS". It is not only a tracker that can send position data, but also a receiver which can receive APRS messages from other APRS stations, decode them and display on its full graphics OLED display (128x64px)! This includes APRS position messages incl. Comment (also mic-e compressed), messages (like SMS) and status messages. For position messages, the distance and the direction of this station are displayed in "degrees".On request, the PicoAPRS works as a completely self-contained APRS "Fill-In Digipeater". This means that it receives APRS packets from other stations and passes them on to the next station. This allows APRS to close coverage gaps. For example, on a fieldday or in the mountains.Furthermore, PicoAPRS can now also be used as awith e.g. Uiview32, YAAC (Yet another APRS Client), and so on. This makes it easy to build an autarchic APRS iGate or Digipeater!

With the PicoAPRS, you can also retire your POCSAG pager! PicoAPRS is not only able to receive messages (similar to an SMS) but also to send messages itself.

Received messages are quoted by the PicoAPRS (ack) so that the sender receives a delivery report. This can not be a POCSAG pager.

When you receive a message, you can answer it directly by pressing a button. In addition to ready-made texts, you can also enter a completely individual text

But it was not yet! With the PicoAPRS you can also send messages to e-mail addresses and even receive e-mails. This is just as easy as sending normal messages to other callsigns. How this works exactly is described in www.aprs-is.net.

And something else: The PicoAPRS offers you the possibility to send an e-mail with your www.aprs.fi link. So you can send a link in advance, which you can follow live on the map. Worldwide, without SIM card, without mobile network, without smartphone or PC. Just right from your PicoAPRS!



The PicoAPRS is even smaller than most pagers. Look at the photos!

Why the goal to build the smallest APRS transceiver?

Well, I love technical challenges!

And why still?

Quite simply: the part can always be with you! When hiking, walking, jogging, mountaineering, cycling, skiing / snowboarding, motorcycling or in weather / high altitude balloons and so on.



Some screenshots from PicoAPRS:







My biggest thanks goes to Mark (OZ7TMD) -> http://unsigned.io/ of me with his "MicroModem" and the free software "LIBAPRS" has enabled this transceiver at all.

Thanks also a lot to Bob Bruninga, WB4APR! Without Bob there would be no APRS! APRS & Mic-Encoders are registered trademarks of Bob Bruninga, WB4APR.





What users of PicoAPRS say about the device:

2m transceiver (transmitter and receiver) with 0,5 / 1 watt swicthable output power

GPS receiver

Graphik capable OLED display with a resolution of 128 x 64 px

850 mAh Lithium-Ion battery including charging function via micro USB port (up to 10 hours usage time!)

Micro USB connector for charging the battery, for firmware updates, for using the Transceiver as a GPS mouse and new - as a KISS-TNC with a computer. and more features are in development!

with a computer. and more features are in development! Two buttons

Take a look at the manual to convince yourself of the functionality of the PicoAPRS Usermanual (EN) (PDF) I've thought a lot about the software and battery saving features.

For example : GPS is cyclically activated in battery mode and deactivated to save battery. If the device is e.g. In a building without GPS reception, the cycle for GPS search is automatically extended. If an external power source is connected (USB), this feature will be disabled automatically and GPS will be on permanently. (you can disable the GPS-Powersave feature via menu)



Position messages are only sent if they have a minimum distance to the last position message.

Best regards, 73

Taner Schenker

DB1NTO



ON8SD: It was worth the waiting! PicoAPRS , the smallest APRS-transceiver in the world is working like a charm! DB1NTO had done a fantastic job! Next stop, trying to find a good antenna to get the most of the 1W output because this one has to become an emergency device while trailrunning!The PicoAPRS is definitely worth the money. The PicoAPRS is extremely compact - even compared to the compact Yaesu FT2D, the PicoAPRS still lives up to its name. [...] Summarizing one can certify the small APRS transceiver the grade highly recommendable. A complete and readable article is available at https://www.afundr.de/technik/30-picoaprs-von- db1nto to findAbout my transceiver was reported on numerous sites. Some of them are below. Thanks for the reporting about my Transceiver!Core of this Transceivers is a ATmega 1284p Microkontroller (similar to „Arduino“).The Transceiver is about so small like a matchbox (only about 1,8 x 3,3 x 5,6 cm!), weights incl. battery & case (without antenna) round about 44 gramms and contails followed components: