Tag Archives: shortwave

NordeMende Globetraveler 7/601 Rebuild

This repair is cross-posted from Rain City Audio: This rare and valuable example of late 1960s German engineering came through my shop recently, the NordeMende Globetraveler 7/601. Marketed as the Globetrotter in Europe, RCA already marketed a radio called the … Continue reading

Posted in Electronics, Projects, Radios and Tubes, Vintage | Tagged , , , , , , , , | Leave a comment

1938 Zenith 5-S-220 eBay Tune-Up Special

I’ve had the opportunity to work on several very nice Zenith radios lately and this one is especially interesting. It’s the Zenith 5-S-220 Cube. This is the first time I’ve seen one of these in person, they’re somewhat uncommon. Electrically, it’s a … Continue reading

Posted in Electronics, Projects, Radios and Tubes, Vintage | Tagged , , , , , , , , , , , , , , , , , , , , | Leave a comment

KN0CK and KF7LZE RTLSDR for HF Back In Stock at Easy-Kits.com!

Edit: Easy-Kits.com is offline, but still for sale! Click through.  We’ve completed the next production run of Rev 5 direct-sampling RTLSDR with HF converters by KN0CK ! Rev 5 Direct Sampling HF RTLSDR with Amplifier

Posted in Electronics, Gadgets, Radio | Tagged , , , , , , , , , , , , , , , , | Leave a comment

For Sale: The KN0CK and KF7LZE RTLSDR for HF Rev. 5!

I’m happy to announce that Rev 5 of the KN0CK and KF7LZE RTLSDR for HF is now available for sale in its 5th iteration – now featuring Direct Sampling, while still keeping the familiar wide-band pre-amplifier! On account of the … Continue reading

Posted in Electronics, Gadgets, Hardware, Radio | Tagged , , , , , , , , , , | 1 Comment

KN0CK HF Converter Rev. 4 is Released!

The complete Rev 3 KN0CK HF Converter has sold out and been discontinued. That’s okay, though, because it’s been replaced with the KN0CK RTLSDR for HF Revision 4! This model incorporates a lot of the feedback from the community about the … Continue reading

Posted in DIY, Electronics, Gadgets, Radio, Technology | Tagged , , , , , , , , , , , , , | 1 Comment

Listen to Ham Radio Online with the ETGD WebSDR

I just discovered the fascinating Wide-band WebSDR operated by the amateur radio club ETGD at the University of Twente in the Netherlands. PA3FWM built a fascinating wideband SDR using a Xilinx FPGA, high-speed ADC and gigabit Ethernet interface to receive … Continue reading

Posted in Internet, Radio | Tagged , , , , , , , , , , , , | 1 Comment

Coming Soon: KN0CK Rev B Integrated HF RTLSDR

Marty KN0CK developed a very interesting v1.0 HF converter based on surface mount technology that fits inside the casing of an RTLSDR tuner dongle. He’s recently sent me schematics for the revision, which should offer even better performance! This new iteration … Continue reading

Posted in Electronics, Projects, Radio | Tagged , , , , , , , , , , , , , , , , , , , , , , | 7 Comments

Round-Up of RTLSDR Upconverter Choices

Updated 11/19/2015! There are 22 converters listed. Know any more? Leave a comment! The RTLSDR is designed for higher frequency operation, so if you’d like your RTLSDR to be able to access many of the amateur, short, medium and longwave bands … Continue reading

Posted in Collections, DIY, Electronics, Radio, Radios and Tubes | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , | 49 Comments

Shortwave Radio Reception with the RTL-SDR Dongle

Need your own upconverter? Click here! I bought and did a quick setup on my RTLSDR dongle using SDR# a few weeks ago, where I used it to listen to FM radio stations around my area and a few public … Continue reading

Posted in Electronics, Hardware, Projects, Radio | Tagged , , , , , , , , | 3 Comments

1953 Hallicrafters 8R40 Repair

Back in May, I dug up a Hallicrafters 8R40 from one of Seattle’s local electronics recyclers, 3R Technologies. It looked like it had been stored very well, had all the tubes, the dial strings intact, no rust to speak of and not … Continue reading

Posted in Electronics, Projects, Radios and Tubes, Vintage | Tagged , , , , , , , , , , , | 6 Comments