Allstar is a great way of linking simplex radios and repeaters together. However sometimes a radio is not required. With direct access to the net, either by Cat 5 or wifi all you really need is a way to receive audio, transmit audio and key up a node. This is what a radio-less node does. All that's required is a Raspberry Pi 3 a USB Sound FOB, a Microphone and Speaker and a few bits to connect it all together.
I used an old bluetooth speaker as the starting point. The case housed a mic preamp an LM-386 amp module to drive the speakers the usb sound fob and 8v regulator for the Icom mic that I was using. The Pi is mounted in a separate case which also includes a relay module and 5v regulator.
Friday, November 23, 2018
Tuesday, November 20, 2018
APRSdroid at 10000m+
Thursday, November 15, 2018
IC-9700 Release Date and Pricing
The Icom IC-9700 is the long awaited successor of the IC-910. Currently on VK Classified, secondhand IC-910's are selling for between $1800 and $2200 (depending on the condition and options installed).
The IC-9100 which is a HF, 6m, 2m and 70cm Base Transceiver (with optional 23cm and D-STAR) is selling for around $4000 from Australian retailers.
IC-7300 Firmware updated (Version 1.30)
Changes in this version: -
- A SET MODE item is added to expand the transmission passband width for the SSB data mode up to "100 to 2900 Hz".
- A SET MODE item is added to make the USB SEND/USB Keying function active immediately after USB port connection. The Menu structure is changed accordingly.
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