Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
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gm360 [2020/10/25 16:03] (aktuell) pe2kmv angelegt |
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+ | ====== DAPNET Transceiver with Motorola GM360 ====== | ||
+ | ===== Introduction ===== | ||
+ | |||
+ | What is needed for the usage of a Motorola GM360 transceiver | ||
+ | |||
+ | * Motorola GM360 UHF | ||
+ | * Raspberry Pi (no matter what model, How-To is based on a RPi 3B+) | ||
+ | * An original Motorola accessory connector. Alternatively a 20 or 16 pin Dupont connector | ||
+ | * A 3.5mm stereo jack plug | ||
+ | * A 22 uF capacitor | ||
+ | * A generic NPN transistor (i.e. BC547) | ||
+ | * A 470 ohm resistor | ||
+ | |||
+ | |||
+ | {{ :g360_ras_pocsag.jpg?nolink&800 |}} | ||
+ | |||
+ | * Motorola pin 3 is the PTT wire (pulled to GND in case of transmission) | ||
+ | * Motorola pin 5 is the audio signal | ||
+ | * Motorola pin 7 is GND | ||
+ | |||
+ | ===== Miscellaneous settings ===== | ||
+ | |||
+ | * Alsamixer, audio volume 100 | ||
+ | * Unipager audio level 42 | ||
+ | * Unipager 'Inverted' checked | ||
+ | * Unipager TX delay 15 | ||
+ | |||
+ | |||
+ | Thanks to Lutz dh7lk for this contribution |