RSSGB2RS

Contest News – 3 December 2017

| December 1, 2017

The ARRL 160m contest ends its run at 1600UTC on Sunday the 3rd. Using CW only, the exchange is the usual signal report. US and Canadian stations also send their ARRL or RAC section number. The RSGB 144MHz AFS contest takes place this Sunday, the 3rd. Running from 1000 to 1600UTC on the 2m band […]

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Propagation News – 3 December 2017

| December 1, 2017

HF propagation for last week’s CQ Worldwide CW contest was fair to middling. There was a 10 metre opening on Saturday, but otherwise the money bands were 20 and 15 metres during the day, with 40 and 80 metres coming into their own after sunset. The predicted poorer geomagnetic conditions on Sunday didn’t really materialise, […]

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New FM repeater satellite

| November 24, 2017

A new easy-to-use amateur radio satellite was launched last weekend and was switched on for general use on Thursday. AO-91, also known as RadFxSat and Fox-1B is a Cubesat that carries an FM transponder. The uplink is on 435.250MHz FM, plus or minus Doppler, with a mandatory 67Hz CTCSS tone for access. The downlink is […]

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ITU-R celebrates 90 years

| November 24, 2017

The International Telecommunications Union celebrated 90 years of ITU-Radiocommunications study groups on 21 November 2017. A 90th anniversary celebration issue of the ITUNews magazine can be downloaded (65-page/11.5MB PDF). Also, ITU HQ station 4U1ITU will be active in the CQ World Wide DX CW contest. QSL via operators’ instructions.

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SDR pioneer dies

| November 24, 2017

Sad news now. One of the pioneers of software-defined radio, Dr Vanu Bose, died suddenly at the age of just 52 on 11 November 2017. He gained his PhD at MIT, founded, and was CEO of Vanu, Inc. His company made much early progress in SDR, including developing the first SDR GSM mobile phone base […]

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Also in GB2RS this week…

| November 24, 2017

The recent RSGB VDSL survey highlighted the growing problem with RF noise radiated from phone lines carrying VDSL2 broadband services. Backed by the RSGB Legacy Fund, members of the RSGB EMC Committee are researching and developing RF digital signal processing techniques to identify and, hopefully, help mitigate VDSL RFI. The first stage, which is currently underway, is analysing […]

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