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====== ULARI Transceiver VHF 7W Hardware ====== | ====== ULARI Transceiver VHF 7W Hardware ====== | ||
- | Still working on this... | + | [[http://microsat.com.pl/product_info.php?products_id=174|ULARI Transceiver VHF 7W]] is based on NanoPi Duo 256 MB module from FriendlyARM. The device consists of a microprocessor module and a motherboard with all necessary external components including VHF transceiver, hybrid power amplifier, 7-pole low-pass filter. The whole system includes:: |
+ | |||
+ | * **SMA VHF antenna connector**, | ||
+ | * A 100 Mbit Ethernet connector with surge protectors, | ||
+ | * Two USB connectors with surge protectors, 5V/1A total current consumption (suitable for moderm LTE modems), | ||
+ | * Wifi chip with external antenna, | ||
+ | * RS-232 serial port (via 6-pin minidin connector), | ||
+ | * DS18B20 thermometer connector, | ||
+ | * Four leds informing about device operation, | ||
+ | * SD CARD connector for operating system image. | ||
+ | |||
+ | >This device is a standalone VHF tranceiver. All you need to do is to connect a proper VHF antenna and you can send and receive RF signals from VHF band. | ||
+ | |||
+ | === Technical parameters === | ||
+ | |||
+ | * Dimensions (without connectors): 100x94x32mm, | ||
+ | * Weight: 280g | ||
+ | * Housing material: aluminium, PCB panels, | ||
+ | |||
+ | * RX frequency: 136-174 MHz, | ||
+ | * TX frequency: 136-174 MHz, | ||
+ | * TX power: 3-7 W, | ||
+ | * Low-pass filter: 7-pole, | ||
+ | |||
+ | * VHF antenna connector: SMA female, | ||
+ | * Wifi connector: SMA female (antenna included), | ||
+ | * Power connector: round 5.5/2.1mm (with plus at center), | ||
+ | * Thermometer connector: terminal with screws, | ||
+ | * Serial port connector: minidin 6-pin female (1 serial port), | ||
+ | |||
+ | * Supply voltage: 12-14 VDC, | ||
+ | * Power consumption (at 12V): TO-BE-MEASURED | ||
+ | |||
+ | === ULARI Radio Interface photos === | ||
+ | |||
+ | {{:ulari_vhf7w_01.jpg?300|ULARI Radio Interface front view}} | ||
+ | {{:ulari_vhf7w_02.jpg?300|ULARI Radio Interface rear view}} | ||
+ | {{:ulari_vhf7w_03.jpg?300|ULARI Radio Interface PCB view}} | ||
+ | {{:nanopiduo.jpg?200|ULARI Radio Interface NanoPi Duo module}} | ||
+ | |||
+ | === NanoPi Duo pinout === | ||
+ | |||
+ | NanoPi Duo pinout diagram with with description of used pins. | ||
+ | |||
+ | {{:nano_pinout.jpg?|NanoPi Duo pinout diagram}} | ||
+ | |||
+ | === Rear panel RS-232 port pinout === | ||
+ | |||
+ | RS-232 port can be used to connect any serial port devices with RS-232 voltage levels. Devices with low current consumption can also be powered from this connector. [[http://microsat.com.pl/product_info.php?cPath=29&products_id=171|GPS-RS232/Microsat/2]] is compatible and works nice. | ||
+ | |||
+ | {{:minidin.png?|Minidin 6 pinout}} | ||
+ | |||
+ | * Pin 1 – 5V output, do not short-circuit, max. current 100mA, | ||
+ | * Pin 2 – GND, | ||
+ | * Pin 3 – hard-wired to negative voltage for WS-2300/WS-2350 weather station support, | ||
+ | * Pin 4 – RS-232 Port 2 TXD, | ||
+ | * Pin 5 – RS-232 Port 2 RXD, | ||
+ | * Pin 6 – not used. |