The DPRK – FSK 600. The modem is based on BFSK bursts transmitted in the lower sideband mode. There are two possible waveforms: 600Bd / 600Hz as default (case of video), and 1200Bd / 600Hz as an option. The 600 Bd FSK mode has a packet length of 217 ms (323 ms pause), with 130 bits per packet. The 1200 Bd mode has a packet length of 210 ms (pause of 290 ms) with 264 bits per packet. Signal picked up by the URE Listening Service, IARUMS URE (IARU Monitoring System, URE). More information about IARUMS URE at https://www.ure.es/iarums/
Source:URE
Antenna
Four-square eight directions antenna system, with dummy load power indicator and high power
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New Antenna Uses Saltwater and Plastic to Steer Radio Beams
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Acom HF antenna V101
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Drone Antenna
“Let’s see if my new DJI Mavic Mini can lift a long wire to be used as an antenna for amateur radio! Not a practical solution by any means... Read more
How to make a 4:1 balun cheap and easy
How to make a 4 to 1 balun cheap and easy Read more
VHF
F-600A Dual mode FDMA DPMR analog digital walkie talkie with GPS in-bulit
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New ! ICOM A120 VHF Air Band Transceiver
VHF Air Band Mobile Radio Icom’s A120 air band mobile introduces two new features: Active Noise Cancelling (ANC) and Bluetooth® capabilities. The newl... Read more
AnyTone AT-D868UV dual-band VHF and UHF DMR portable
AnyTone AT-D868UV Today, Qixiang Electron Science & Technology Co., Ltd, the Chinese manufacturer that produces the AnyTone line of two-way... Read more
Two Repeaters One Antenna Feed Line
“We had an opportunity recently to provide a unique duplexer system. The customer needed a single antenna feed line for two repeaters. This solu... Read more
Motorola Two-Way Radio for Use Extreme Conditions
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Review
SDRplay RSP 1A Review and SDR Primer
The new 14 bit SDR wideband receiver from the UK. I also include a 15 minute SDR primer https://www.sdrplay.com/rsp1a/ KEY BENEFITS __________________... Read more
