CNX Software

kv4p HT – Turn an Android smartphone into a ham radio transceiver

HT is an open-source hardware VHF or UHF radio designed to plug into the USB-C port of an Android smartphone and turn it into a handheld ham radio ...
IEEE

Over-the-Horizon Channel of Radio Communication at VHF Band via Artificial Plasma Clouds

Abstract: Metal cesium (Cs) vapor, released at an altitude in the upper atmosphere, generates an artificial space plasma cloud with high electron density. It can act as a scatter to realize radio ...
IEEE

A Comprehensive Prediction Model for VHF Radio Wave Propagation by Integrating Entropy Weight Theory and Machine Learning Methods

Abstract: In order to improve the prediction accuracy and robustness of radio wave propagation in the very high-frequency (VHF) band, we proposed a combination prediction model (CPM) based on the ...
RBR

Comment Period Opens On VHF-to-UHF Plan

The new Video Division Chief within the FCC’s Media Bureau has opened up a comment period for a proposal that would see a PBS Kansas facility shift from a VHF channel to a UHF position — a move that ...
Bureau of Meteorology

National guidelines for marine weather broadcasts on VHF radio

These guidelines provide a best practice framework for the delivery of weather information by providers of Very High Frequency (VHF) radio broadcasts. Many coastal radio stations provide regular local ...