sdrsharp @sdrsharp
You want more and better rtl-sdr tools? Consider helping this initiative from Kyle Keen indiegogo.com/projects/a-mon…
Ulis K3LU @UlisK3LU
Western radio broadcasters tuning out (excellent article on the demise of #shortwave broadcasters) via Straits Times shar.es/LgFv9
wa1gov @wa1gov
I love #hamradio kits… pic.twitter.com/oaBaj00Ady
Jerry Taylor @kd0bik
How-To: Splice Wire to NASA Standards fb.me/3BMl1CsL0
<b”>rtl-sdr.com @rtlsdrblog
Using and RTL-SDR and RTL_433 to Decode Various Devices rtl-sdr.com/using-rtl-sdr-…
Jeff Davis @ke9v
@AA7EE goes mad scientist with his Tuned Loop for BCB –> aa7ee.wordpress.com/2013/11/17/a-t…
dusty_s @dusty_s
EchoHam (formerly EchoMac) update in Mac App Store” <- glad to see an update! feedly.com/e/G5x1odQW
Dangerous Prototypes @dangerousproto
OHM2013: Hacking the radio spectrum with GNURadio goo.gl/krngx7
Brian (VA3BCO) @VA3BCO
Are we Getting Closer to a Touchscreen SDR HT? >#hamr #hamradio wp.me/p4GMgg-28
R3UAA @R3UAA
Taylor Killian: SDR Showdown: HackRF vs. bladeRF vs. USRP taylorkillian.com/2013/08/sdr-sh…
Andy Holmes, K5PO @K5PO
K5PO Shows the *right* way to install ground rods… Even in rocky soil! #powertools #hamr youtu.be/YObizRMo068
Jeff Davis @ke9v
It’s the end of the world, as we know it –> Anonymous develops secure data over ham radio scheme. theregister.co.uk/2014/05/01/ano
SDR-4+ HF Receiver: The SDR-4+ is an HF general coverage SDR receiver covering from 0.85 t… bit.ly/1bLtj1u #hamr #hamradio #CQ
July Call for Projects! Send links/pictures of your cool projects. One of mine: @eevblog uCurrent for my bench pic.twitter.com/ps9giFTB7x
“JT65 – Easy as Pie!” feedly.com/k/1e6pEHI #hamr #Hamradio
Here are a few more links to SDR for amateur radio. I really gotta start building that SoftRock so that I can then tackle some of the more complex projects…..Dan
Elad FDM Duo SDR transceiver can be used with a computer or stand-alone. This little transceiver was demoed recently at the Ham Radio Fair in Friedricshafen, Germany. The Elad On-Line Shop does not yet list a price for this radio yet.
Apache Labs SDR rigs. These rigs are made in India and are commercial versions of the TAPR HPSDR designs. These radios are getting good reviews on eHam.
A $40 Software-Defined Radio. This article on SDR hacking from IEEE Spectrum mentions amateur radio.
Another selection of amateur radio related items appearing recently in the electronic engineering trade publications.
Litz wire and other component cleverness
If you’re not familiar with it, litz wire is not named after a person or a place. It’s short for Litzendraht, the German term for braided, stranded, or woven wire. It’s a very clever solution to the problems and inefficiencies caused by the skin effect — as the frequency of the current that a wire carries increases, the current tends to go to the outside of the wire.
Vector network analyzers support versatile testing
Among the most valuable of RF/microwave test tools is the vector network analyzer (VNA), which can measure amplitude and phase with frequency. VNAs have long become associated with the measurements of complex impedance parameters—such as scattering (S) parameters—using the test data to design efficient impedance matching networks for the optimum transmission of high-frequency signals through active and passive devices and networks. At present, VNAs are available from both well-known and not-so-well-known instrument manufacturers, in both bench top and portable configurations for making measurements on high-frequency (HF) through millimeter-wave-frequency signals.
Integrated RF analog, multi-standard, software-defined radio receivers
The scaling of CMOS technologies typically has a great impact on analog design. The most severe consequence is the reduction of the voltage supply. Imec and Renesas have managed to put a complete, high-performance SDR (Software Defined Radio) receiver into a 28nm CMOS process with a 0.9V power supply. The IC has everything except a PLL on a single monolithic chip. (See Figure 1.) This is an impressive integration of analog functionality.
KD4E_73
Just found this resource:http://t.co/wlqb30CF Coverage down to 50mHz is possible with one type & down to 22mHz with another.
Wish I had the time to play with these things…..Dan
w7dtg
W7DTG: Another boatanchor receiver demonstration Hallicra…http://t.co/QXZn29Pe
Ham_Radio_News
Amateur Radio – FreeDV – Digital Voice Software for Amateur Radio http://t.co/u01JTDMa #hamradio #hamr #dx#swl
I’m still not sold on digital voice, but if it were easy to set up, like say PSK-31, I’d give it a try, at least….Dan<
When I was a kid, I used to religiously pore over the ads in the Electronics Illustrated, Popular Electronics, and later on, QST issues that I received. I don’t do that every month nowadays, but I think it is a worthwhile exercise to do every two-three months. New products are always being introduced, and some of them can be quite useful and fun.
This month, I went through the ads in QST. Here are some that I highlighted.
Got any tips for using a DMM? If so, e-mail me and I’ll include it in the book.
Do you peruse the ads in QST and other ham radio magazines? Which ones have you found interesting lately?
Here are a couple more interesting tidbits gleaned from the Internet over the past week or so:
