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
Light Beam Multi-band Antenna LBM-17M+20M
The Light Beam Multi-band Antenna has been developed for Hams who want one antenna which enables them to operate on multiple amateur bands. Bas... Read more
7 element 144MHz LFA-Q Super-Gainer Quad Style Yagi
Description If it is GAIN you want from a small boom, this is the antenna for you! Wow, Super compact boom!! Massive 13.6dBi from this antenna!... Read more
OptiBeam OB17-4 17 Element 4 Band
4 big monobanders on 1 boom, no traps !!! 3el on 40m / 4el on 20m / 4el wide spaced on 15m / 6el on 10m OptiBeam OB17-4 17 Element, 4... Read more
New Antenna Physics Book from ARRL!
Written to bridge the gap between basic theory and graduate-level engineering texts, the second edition of Antenna Physics: An Introduction includes n... Read more
VHF
DMR portable SPH6000 Serial – Samhoo
Samhoo is delighted to formally launch Digital Trunking Portable SPH6000 product serial, which is fully compliant with ETSI DMR Tier 3 & PD... Read more
New Icom Amateur Products Including the IC-9700 to be Shown at Tokyo Hamfair 2018
IC-9700 As well as have three working demonstration units of the forthcoming IC-9700 VHF/UHF/1.2GHz transceiver, Icom Inc. will be unveiling other pro... Read more
Getting Started with the FM Satellites
Getting Started with the FM Satellites If you can program split-frequency memories in your dual-band radio, or your dual-band radio has two VFOs, you... Read more
Retevis RT90 Mobile Dual Band DMR Mobile Radio Review – Part 1
Description： RT90 supports analog and digital mode, It provides dual band, dual standby, dual display, dual time slot, operating on both 400-480MHz UH... Read more
Super Gain HT Antenna By Diamond, SRH770S Dual Band
“If you are in the market for a high gain HT antenna for those fringe areas, this may be for you. The Diamond SRH770s is very flexible for porta... Read more
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
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