calling frequencies

Human Body Resonance Frequencies - Wondering whether human body could be used as an antenna.

Rabbit-Ears Dipole Antenna - This handy and cheap portable dipole can be folded and backpacked, carried in use, and adjusted to a very wide range of frequencies.

JOTA Frequencies - World Scout frequencies, to easily find Scout stations, listen in on the proper Scout frequencies

60m Band Frequencies - International 60m band channel frequencies.

Western Pennsylvania Repeater Council - Coordinates amateur radio repeater systems, control and link frequencies

KC7ZRD The North Valleys Simplex Group - This group is located just north of Reno, Nevada and primarily uses simplex frequencies.

AIR 802 Antennas - Manufacturer of WiFi (2.4 & 5 GHz), Marine WiFi, Military and other antennas of various frequencies and styles.

Space frequency listing - Downlink frequencies for all kind of satellites

QRP Frequencies - QRP Popular Frequencies

UHF VHF Repeaters in Italy - List of VHF UHF ham radio repeaters in italy with frequencies and locations

Arizona Repeaters Directory - Arizona repeaters sorted by counties, with location maps! Also includes Robet's List of verified Arizona scanner frequencies.

Two-Meter VHF Repeaters in the U.S. Priority listing - New field-tested Two-Meter VHF FM repeater frequencies for 33 US states

Small Antennas for High Frequencies - This is about Small Antenna types and their properties which can help choosing proper antenna for high-frequency wireless communications as: two-way radio, microwave short links, repeaters, radio beacons or wireless telemetry

Global Frequency Database - Frequencies from all over the world. 25000+ total records, 4600+ records feature exact GPS locations.

Cruise Ship and Maritime Monitoring Frequencies - Cruise Ship and Maritime Monitoring Frequencies - cruise ship frequencies maritime scanning radios vhf uhf

Scan Radio NSW - Radio scanner frequencies for nsw

Home - Hunter Valley Scanning - Radio Frequency Scanning Newcastle and the Hunter Valley. Lots of Frequencies plus videos and photos and web links.

Scan UK Frequncies Group - A UK Scanning Forum containing UK Frequencies from HF, VHF and UHF in databases and lists. Airband, Shopwatch, Military, Shops, Taxi's etc.

GMRS Frequencies - GMRS & FRS Frequencies & CTCSS in USA

RadioComm - RadioComm can be used to program your Icom radio's memory, or to create nice radio-frequency spectra or to interface your radio to a huge database of frequencies.

Ham Dashboard - Iphone App with list of nearby repeaters in the UK, along with details of input and output frequencies, a map, and a handy bearing arrow for each repeater.

GU-43b Tetrode - The GU-43B tetrode is used for wideband power amplification at frequencies up to 100 MHz in RF equipment. This tube is generally considered analogous to the 4CX1000.

W3LPL Receiving Bandpass Filters - Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT

About Cavity Filters - Cavity filters are tipically circuitry behind a duplexer that allow only certain frequencies to pass

Radio Frequencies Measurement - Accurate Measurement of Radio Frequencies