frequency step

Minnesota Repeater Council - Organization of Minnesota repeater owners and users, and Minnesota frequency coordination.

National Radio Data - United States and Canadian call sign/scanner frequency databases, Worldwide airport frequencies, FIPS codes, Mass Media searches for DXing and more!

Amateur Radio Info - Information for Amateur Radio, Echolink,``Frequency assignment,Q Signals, RST, Fcc Part 97, 3rd Party traffic.

Radio Filters.Com - Low Cost FM Notch Filters: Radio Filters.com, manufactures frequency control products including band pass, notch, reject, electronic filters

ARTRA QRP Kits - Lots of homebrew kits, you can buy kits or download as free, Association des Réalisation et Techniques RadioAmateurs. Transceivers, filters, converters, frequency meters, antenna analyzers, ATV receivers, interfaces

Bliley Technologies, Inc. - Quartz crystal oscillators, frequency control.

How to make a Morse Code QSO - This step-by-step tutorial contains everything you need, not only to survive that first contact, but also to learn to enjoy Code and actually do it well. Even if you detested learning it in the first place

ERO Frequency Information System - ERO Frequency information system, search frequency allocation database for many european countries and ITU region 1

Flysat - Digital satellites Frequency site

Iraq War Frequency Info. - IRAQ War Military HF freqs, Aero HF frequencies and Shortwave Broadcast schedules of interest

High Frequency - Radio frequencies for HF-GCS, ARINC, MWARA, and military stations

Newcastle Scanning - Newcastle Scan is the premier radio scanner site for Newcastle AUSTRALIA and a leader in live scanner feed, pictures and emergency recordings GRN INFO AND IDS frequencys

Ontario Unlisted Frequency Guide - The Ontario Unlisted Frequency Guide web page is dedicated to scanner radio hobbists who are frequency hunters.

UK Radio Frequency Bands - A guide from 0 Hz to 30 MHz The main bands, all frequencies in MHz unless otherwise stated

Scanner Master Police Scanners - Police scanners by Uniden Bearcat Scanners, port radio scanners antennas parts or listen to live online emergency police broadcasts with radio frequency codes by Scanner Master

Search SW Stations by Frequency - Search for station listings by HF Frequency. Results show who is scheduled when on the frequency in question.

MultiNEC - MultiNEC can automate the repetitive steps of antenna modeling. You can start by building the model from scratch or by importing an existing model in any of several formats. Then you can run multiple test cases while letting the program make small changes to the model between runs. MultiNEC can be used by itself if you like, but it really shines when used in conjunction with your existing antenna modeling program. MultiNEC works with EZNEC Standard, EZNEC-M Pro, EZNEC/4 Pro, NEC-Win Plus+, NEC-Win Pro, GNEC, Antenna Model (Teri Software), and 4nec2

Trimitator - Software for imitation digital radio-signals: ASK, FSK, BPSK, QPSK, variable speed, any frequency

iSpectrum Analyzer - Macintosh audio spectrum analyzer that allows the user to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display

Defpom's CB Radio Simulator - It is a application which can be used for troubleshooting CB radio faults, by giving a graphical display of the normal operating frequencies generated by various parts of the CB radios circuits, it can help you identify if a frequency is incorrect or even missing. Another good use for this software is simulating possible frequency expansions, as it allows you to choose any frequency that the PLL is capable of generating, so you can see what the radio will allow you to get !

Audio Spectrum Analyzer - OscilloMeter  ^pop - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.

LC METER - Inductance and Capacitance meter using``Frequency Shifted Oscillator

QRP equipment - Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP

2 Meter FM Channelized Frequencies - It is possible to program almost every repeater and simplex frequency for most areas for the entire 2 meter FM band plan into a radio's memory channels.

Build A Vector Network Analyzer - The VNA (vector network analyzer) is an essential tool for measuring the complex impedance of a circuit at a given frequency. Article on how to build a Impedance analyzer.