SDRplay SDRs

SDRplay has just introduced a replacement for the RSP1A called the RSP1B. This is in a metal case and is supposed to have a number of improvements. 

The older version was in a metallised plastic case and had rave reviews on eHam.com. It covers 1kHz to 2GHz and uses a 14 bit receiver.

SDRs do most of the signal processing in software. If you have a PC, these easily out-perform receivers of years ago. Being software defined, this can simplify the hardware design. Rigs with SDR receivers are usually less expensive and complex with much of the "hard stuff" done in software.

630m QRP WSPR overnight

 

In the last 12 hours, 23 stations have spotted my 10mW ERP WSPR on 630m. Nobody was over 1000km.

Sunspots - Tuesday February 20th

 Solar flux is 152 and the SSN 64.  A=3 and K=2.

6m QRP FT8 (Monday)

 A few moments ago (at about 1554z) my QRP 6m FT8 (2.5W and a V2000 vertical omni) was turned on. So far (at 1605z) spotted by just 1 G.

UPDATE  1738z:  Spotted by 4 Gs.

500uW 10m WSPR success again

 My 500uW (0.5mW) 10m WSPR TX was spotted by EA8BFK (2880km) this afternoon,

Turing statue - NOT amateur radio

This statue in honour of WW2 code breaker Alan Turing is in King’s College in Cambridge. 

It is in a really obscure place and should be moved so visitors can appreciate it. I only took it by walking in areas the general public cannot access. Why not put it where people walk?

Granddaughter's photo - NOT amateur radio

 

This photo was taken by one of our granddaughter's last week.

It gets better and better on 630m WSPR!

In the last day and overnight, 33 stations have spotted my 10mW ERP WSPR from the earth-electrode "antenna" in the ground, with spots from Finland yet again. This was even better than yesterday.

Sunspots - Monday February 19th

 Solar flux is 157 and the SSN 84. A=6 and K=1.

630m QRP WSPR (Sunday)

My 630m 10mW ERP WSPR from the earth-electrode "antenna" in the ground has been on since 1930z. So far, spotted by 11 stations (see table). Furthermost is EI0CF (602km).

UPDATE  2036z: In the last 2 weeks 50 stations have spotted me.