Hf radio

Seven good ideas for amateur radio operators forced due to space restrictions, to operate on HF and VHF ham radio bands from apartments with heavy antenna limitations

COMPILED FROM VARIOUS SOURCES: All frequencies are in MHz Shortwave/HF USAF GHFS 4.724 MHz USB EAMs and USAF long distance HF nets 6.739 MHz UHB EAMs and USAF long distance HF nets 8.992 MHz USB EAMs and USAF long distance HF nets 11.175 MHz USB EAMs and USAF long distance HF nets 15.015 MHz USB EAMs and USAF long distance HF nets RUSSIAN/ MILITARY NET HF frequencies 3.731 AM CREEPY LAUGHING CLOWN/RUSSIAN JAMMER BABA YAGA 3.218 LSB RUSSIAN MILITARY VOICE "KARTOK-65" 3.850 LSB RUSSIAN…

Last update: 25 March 2022 Since applications are constantly being developed, I update this posting regularly. If you would like to suggest an app that I have not considered, please comment or cont…

The Sputnik regenerative receiver was designed for the 40m amateur radio band, the perfect project for beginners in homebrew radio receivers.

A while back, Dan KB6NU noted the increasing number of preppers getting involved in ham radio. Preppers are people who are actively preparing for emergencies, natural disasters and disruption of social order. In our Technician license course, we’ve noticed an increase in the number of people identifying themselves as preppers. Of course, amateur (ham) radio has a long history of emergency service and disaster preparedness. Continue reading When All Else Fails or SHTF?→

The Sputnik regenerative receiver was designed for the 40m amateur radio band, the perfect project for beginners in homebrew radio receivers.

The IC-7300 is a revolutionary compact radio that will excite HF operators from beginners to experts. This model has a high-performance real-time spectrum scope and employs a RF direct sampling system. The IC-7300’s real-time spectrum scope provides top-level performance in resolution, sweep speed and dynamic range. While listening to received audio, the operator can check the real-time spectrum scope and quickly move to the intended signal. The combination of the real-time spectrum scope…

Spontaflex HF Radio Receiver - The Listeners Read more about capacitor, circuit, audio, coil, tuning and amplifier.

Radio, Electronics, Science and Technology – My private tech project website (by Peter Baier, DK7IH)

POOR MAN’s HF RX A simple Arduino based direct conversion HF digital modes SSB receiver Being a ham radio amateur for almost 30 years I was never a really HF guy and till December 2019 never passed beyond technician license and it’s privileges such as VHF and UHF communication and basic Oscar satellite communication. Having