mcHF clones

There has been quite a bit of interest in this HF transceiver project. At one time MLS was going to sell a Chinese clone, but had second thoughts. You can buy this Chinese clone direct from China. It is much less than the FT817/818.

There is a German derivative coming called the OV140. At the time of writing, kits are not yet available. This is open source hardware and software. It looks like this will be good when it comes.

See https://www.amateurfunk-sulingen.de/projects/ovi40-sdr#start

See also http://www.m0nka.co.uk/

Cambridge Concert - NOT amateur radio

A reminder that my wife's concert is in early April (see photo). You can get tickets on the door.

LimeSDR review

Southgate News has links to a review of the LimeSDR transceiver.

See http://southgatearc.org/news/2018/march/limesdr-mini-software-defined-radio-transceiver.htm#.WqpM30x2vIU .

Sunspots - Thursday March 15th 2018

Solar flux is 68 today and the sunspot number zero. A=9 and K=4.

2m FT8

A QSO with M0MWS (195km) was not a bad start on 2m FT8 today with 2.5W and a big-wheel! So far, 16 uniques spotted in 4 countries. Best DX on RX is DK1VC (503km).

UPDATE 1046z: Now 18 uniques in 4 countries in last 6 hours on 2n FT8 RX.

UPDATE 1300z: 35 uniques in 7 countries so far today on 2m FT8 RX.

2m FT8 RX today up to 1600z - amazing!

UPDATE 1429z: Now 47 uniques in 7 countries today so far on 2m FT8 RX. Quite amazing.

UPDATE 1612z: Now 57 uniques spotted in 8 countries, just using the standard FT817 (no preamps) with a big-wheel omni antenna. Scarcely credible!

Aurora webcams

Apparently you can watch auroras live via a couple of webcams.

See https://lightsoverlapland.com/webcams/ .

G1 Solar storm?

According to the Spaceweather site, we have a 55% chance of being hit by a solar storm.  Although it might result in some strong auroras, I'm not quite sure what else will be affected.

See http://spaceweather.com/ .

Cambridge Punts - NOT amateur radio

My wife took this picture earlier today. It shows punts on the River Cam outside King's. For once we had sunshine!

Es'hail2 satellite

Although I am unsure when this geosynchronous amateur satellite is due to be launched, it could revolutionise amateur radio, if successful. It should allow communications from as far apart as Brazil and Thailand. It will use a 10GHz downlink and 2.3GHz uplink, I think. Being geosynchronous, antennas can be fixed in one direction, with no need for tracking. There are 2 linear transponders I think. The 250kHz wide one for SSB etc will be like a new DX band.

I know of one local who is building gear in readiness.

See https://amsat-uk.org/satellites/geosynchronous/eshail-2/  .

RIP Stephen Hawking - NOT amateur radio

So the legendary physicist Stephen Hawking has died. Although severely disabled, he beat the odds and lived many, many, years more than people expected and did some great work.

See http://www.bbc.co.uk/news/uk-43396008  .