Category Archives: PE2KMV blog

POCSAG Whitelist for Pi-Star. Use(less)?

Owners of an MMDVM hotspot running Pi-Star can configure this hotspot as low power DAPNET transmitter too. During idle time when no QSO in digital mode is running, the hotspot will switch to the DAPNET frequency at set times to … Continue reading

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Getting QRV with DAPNet

Thanks to Jonathan G4KLX DAPNet experiences an explosive growth. That happened since Jonathan implemented support for DAPNet in his MMDVM software. Since then hotspots like the MMDVM_HS_HAT and MMDVM_HS_Dual_HAT can act as a DAPNet transmitter in their idle time. To … Continue reading

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DAPNet website translated in multiple languages

Since a couple of weeks the German website www.hampager.de has been made available in multiple languages: English, French, Dutch, Spanish, Polish, Italian and Portuguese. Beside the translation it’s now also possible to access a lot of information regarding DAPNet without logging … Continue reading

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POCSAG transmitter with a Motorola GM1200

Previously the PE2KMV DAPNET transmitter was equiped with a Friendcom FC301 datatransceiver. Because this tiny transmitter only provides 5W power, which is not that much in the hills of southern PA, the signal was boosted by an amplifier. For two … Continue reading

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Entire DAPNet transmitter

After a lot of planning, collecting, drilling and sawing it’s finally operational: a POCSAG transmitter for DAPNet, with integrated powersupply, Raspberry and amplifier in a 19″ rackmount.   Power supply To keep everything compact I’ve decided to integrate a switched … Continue reading

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Dutch – German cooperation

It was already known before that there was still development on POCSAG paging at the east side of our borders. And because there were very promising descriptions on the website of  Aachen University (RWTH) PD1AEF and PE2KMV decided to cross the … Continue reading

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News from DL

In Germany still development is going on regarding the amateur pager network. At Aachen University (RWTH) a new concept has been worked out, named DAPNET: Decentralized Amateur Paging Network. Because the Linux based ‘FunkrufMaster’ is already in service for a … Continue reading

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Apollo Gold A30 programmer

A bit off topic is this programmer for the Apollo Gold A30. This is a so called ‘two way pager’, which means the message is sent via POCSAG or FLEX and a reply can be sent by the pager via … Continue reading

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Arduino PCB

Following the POCSAG Arduino encoder (by N2RVQ, described on this site) a piggyback PCB for the Arduino (or clone) has been desinged. The first batch of PCB has arrived already a while ago, but busy times at QRL and holiday … Continue reading

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Once upon a time there was… five tone

Some time ago I’ve (re-)discovered the old five tone gear. Years ago this was the usual stuff for employees of emergency services. In the pre-tetra era selective calling on analoge communication networks was done by five tone calling. Regardless if … Continue reading

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