Tag Archives: hf

KN0CK Amplified RTLSDR for HF Rev. 5 is Back!

After some technical difficulties, the KN0CK Amplified RTLSDR for HF Rev. 5 is back! Now for sale directly through blog.KF7LZE, and including free shipping in the United States, and a free PAL to BNC adapter with purchase! Everything you need to … Continue reading

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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

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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

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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

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KN0CK HF Upconverter Fits Inside the USB Tuner’s Enclosure

Marty KN0CK sent me some details to publish about his great looking miniature HF upconverter board for the RTLSDR, the HF Alchemy DVB-T Active HF Upconverter. It’s an incredibly miniature SMT board with an SA612 mixer and SMT oscillator, and … Continue reading

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DIY SDR HF Up-Converter by WA7JHZ: Another good choice for your RTLSDR.

Reader David Forsman, WA7JHZ, read the round-up of RTLSDR upconverter choices and sent me a photo and build schematic of one he designed which was featured in the January 2013 issue of QST, the ARRL‘s monthly magazine. This circuit up-converts … Continue reading

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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

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