Where to find the $20 Software Defined Radio?
A while back I wrote a blog post about the availability of $20 software defined VHF/UHF radios in the form of re-purposed USB digital television dongles.
Now-days, with the improvements in software and documentation, the hardest part is finding the right dongle. What you order from EBay, and what you receive, can be two different things and only some of the dongles are suitable for use as VHF/UHF software defined radios.
So, I was pleased to see that at least one hobbyist electronics supplier has sought out and supplies a suitable device for SDR at a fair price :
Adafruit has available the USB dongle and “antenna” suitable for experimentation for $22.50, not far from the EBay (direct from China) price.
Click here to go directly to the product page: Software Defined Radio Receiver USB Stick – RTL2832 w/R820T
No, I didn’t receive a free evaluation unit and I don’t work for Adafruit … I’m just glad to see these useful devices available from a local company with an increased chance of you “Getting what you paid for.”
Adafruit also helpfully stock the adapter cables to convert the less common MCX antenna connector into the much more common BNC connector: MCX Jack to BNC RF Cable Adapter
Or you could try to get one free in our SDR giveaway! 😉 hihi
http://www.amateurradio.com/sdr-giveaway/
NooElec sells a similar model for $17.95. I personally own it and can vouch that it’s a good little SDR receiver.
http://www.nooelec.com/store/software-defined-radio/nooelec-nesdr-nano-sdr-dvb-t-usb-stick-r820t-w-antenna-and-remote-control.html
Ordered the dongle and adapter from Adafruit. Something for a rainy (snowy) day. I’ve been re-reading the SDR dongle article of W9RAN in an older QST.
Thanks, 73,
John, W9JGO
I have a dongle and an HF up converter with SDR# to make a complete Amateur Radio receiver. Works well.