tone analyzer

G1RV ANTENNA - Maidstone Amateur Radio Society G1 RV antenna for 18 24 and 50 MHz

G4RV Antenna - An 80 to 10 meters multibad wire antenna plan by Maidstone Amateur Radio Society

G8RV Antenna - Antenna system resonant on 28.9, 24.9 21 and 1.8 Mhz by midstone amateur radio society

Harlow and District Amateur Radio Society - A well established club operating under the call sign of the late Tom St. Johnstone (G6UT)

Folkestone and District Amateur Radio Society - FADARS Web site

Folkestone Repeater Group - Folkestone Repeater Group GB3FK GB7FK GB7DX

Hilderstone Radio and Electronics Club - G0HRS Hilderstone radio and electronics club

K7EFA Yellowstone Radio Club - YRC the Yellowstone amateur radio club

WE-030A Antenna Analyzer - Small and simple to use, this antenna analyzer can speed and ease the tuning and adjustment of HF antennas. It measures the fundamental parameters SWR and return loss.

AIM4170B by W5BIG - Antenna Analyzer AIM4170 by W5BIG from Array Solutions

LBA Technology - LBA - DTV & RF test systems; AM antennas; RF shielding; RF compliance, safety, interference, intermodulation services; AM detuning, Antenna SWR Analyzers

Scanner Radio for Android - Android app to listen to live audio from over 2,300 police and fire scanners and weather radios from around the world.

Sunstone PCB Design Software - Sunstone.com PCB123 PCB download software. Review Sunstone quality pcb design software. Free PCB software download for all of your business needs.

WinTone DTMF Decoder  ^updated - WinTone v2.02 id a windows DTMF Decoder

DTMF reader for iPhone - DTMF reader decodes dtmf tones, it is easy to use and with a log to save codes you like.

Digital Oscilloscope and analyzer software - PC based mixed signal digital oscilloscope and analyzer software for BitScope. Runs on Windows, Linux or Mac OSX systems.

Multi-Instrument - Contains a PC sound card based signal generator. It can generate functions, multitones, arbitrary waveforms, burst tones, MLS, DTMF, musical scales, white noise and pink noise, and frequency/amplitude sweep. Fully functional free trial downloadable.

Multimode - A new app for Ham Radio running on IPhone and IPod touch. Multimode is a modem for RTTY BPsk31 & QPsk31, with spectrum analyzer and Macros for easy operations.

DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS

A PIC16F84 based CW Decoder - CW decoder project that automatically adapts itself to the CW rate and may be employed for learning purpose substituting the traditional tone generator and offering the capability of displaying the keyed code.

Improved PL Tone encoder - N1HFX project to improve PL tone encoder providing a more stable frequency

20m CW QRP Transceiver - The direct-conversion receiver uses an audio-based automatic gain control, an LC tone filter, and a 100-kHz crystal for frequency alignment. The same VFO is used for transmitting and receiving by DC1YB

Identifying sources of radio frequency interference - This page describes the results of some tests with a portable spectrum analyzer in attempt to identify the sources of RFI around the house. Radio interference was found in a number of unexpected places.

Sub-Tone Generator for repeater triggering - If you need a cheap and easy to construct Subtone Generator for EU-model VHF-UHF rig, here is a solution that works very well.

SARK100 Antenna Analyzer - The SARK100 Antenna Analyzer it is yet another antenna analyzer but available in kit form and designed to be easy to assemble and with an affordable pricing.