Idea for a simple 10m WSPR transceiver

GQRP club sells  inexpensive 14.060MHz crystals and these doubled would come out on 28.120MHz. I am wondering if they will pull UP to 28.1246? If so, they would make a perfect source for a DSB WSPR transceiver. Half the TX power would be wasted on a signal 3kHz lower but it would be a very simple design with just an oscillator, doubler, balanced mixer, PA and low pass filter, plus the basic audio input and DC receiver parts, which would re-use much of the TX design. Some experiments are needed!

Alternatively, can anyone suggest a more modern approach such as using a programmable reference oscillator as used in SDRs? What is the best one? Where do I get them from?

SAQ (17.2kHz) - on line receiver

Dec 10th the transmitter at SAQ (Sweden) on 17.2kHz is transmitting a special CW message. Also there is a transmission on Dec 24th. An on-line SDR in The Netherlands that can be used to listen to this. See  http://websdr.pa3weg.nl/ .  Alternatively, try listening with a simple up-converter or simple VLF receiver. 

Extra transmission on 10th December
In order to celebrate the 100th anniversary of the Nobel Prize to Guglielmo Marconi and Karl Ferdinand Braun, we plan to be on air on 10th December at 08.00 UTC and 16.00 UTC. No reports are required and no QSL-cards will be given.

Traditional transmission on Christmas Eve 24th December
SAQ will be on air on 24th December at 08.00 UTC. The frequency is as usual 17.2 kHz CW. Reports are welcome and will be confirmed by QSL-cards.

Simple SDR links

Already some replies on the quest for ultra-simple SDR transceiver ideas - thank you. For example see the LY1GP site http://www.qrz.lt/ly1gp/SDR/index.html

Simon Brown HB9DRV mentions work on the SoftRock which is simple and not too expensive. 1W 30m/20m/17m with a new console being written starting July 1st.

Simplest possible SDR transceiver?

A challenge - what is the simplest possible SDR transceiver that can be built that would allow credible results on HF QRP? Does anyone know of any links to such ideas? Is there an "SDR equivalent" to the Pixie or similar ultra-simple QRP rigs, possibly supporting all modes but using just a handful of parts?

Software Defined Radio (SDR) kits

Received this today about SDR kits from Australia:

Hi Roger -

Here is a piece of information that may be of interest to your blog readers / website visitors: our little SDR KIT project is gaining momentum - we've been in business for less than one month yet we now have builders in 14 countries. See http://www.genesisradio.com.au/G40/ . We also have 2 new models coming out very soon: 20m and 30m duobander and single 80m SDR transceiver.

Thanks for reading.

Best 73
Nick VK1AA

Dutch on-line SDR testing new bands

The on-line software defined radio (SDR) in Twente, Holland http://websdr.ewi.utwente.nl:8901/ (very useful when testing 80m QRP rigs) temporarily added the 0-150kHz, 1.8MHz and 10MHz bands to the ranges with wider band coverage than before on 20 and 80m over the Christmas period. This SDR is now back to its usual 80,40 and 20m coverage (as of Dec 30th).