The BetterRF Company
- Dedicated to providing superior products to the Amateur community.
screwdriver Control, Icom 7000 and IC 706 tune control, voice and cw keyers for Icom Radios, yaesu tune control.
- Sells leading-edge voice and digital communications products to the world-wide military, government, industrial, and amateur radio marketplaces.
Bluetooth Remote Audio/PTT, Rig Controller with Audio & PTT , HamLinkUSB Rig Control, Noise filtersm antenna analyzers, Multimode Data Controller, TNC, Packet Radio Terminal Node Controller. USB2RS232
- Scan Antenna supply precision antennas to some of the world’s most advanced, market leading companies.
Their antennas fit in satellite voice/data, mobile/wireless GSM, GPS, marine/land based radio and other specialty systems.
About Digital Smart Technologies
- A general guide to D-STAR.
The purpose of D-STAR is to allow HAM Radio operators to speak further and clearer using digital voice while sending data from 1200 BPS on up at the same time.
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- Digital Voice Transceiver Project
This Project began to explore the use of the DVSI AMBE 2020 voice compression chip and also the ADF7021 single chip VHF RF Transceiver from Analog Devices.
W8DIG Central Ohio Digital Interconnect Group
- Group of dedicated amateur radio enthusiasts who want to further digital modes of communication in the central Ohio area. We have been active in packet, APRS, VOIP and are now proud to provide D-Star digital voice and data connectivity.
Low Frequency Transmission Modes
- Article by W1TAG on operating modes used on low-banding.
The 2200 meter band (135.7 - 137.8 kHz) is only 2.1 kHz wide, so voice work on SSB or AM is out. Find out the best modes on LF
SatWarn for SatPC32
- This is a simple program that communicates via DDE with the excellent DK1TB's SatPC32 satellite tracking program and gives a voice warning when a satellite rises above the horizon.
- TheVoice Keyer is a free Windows based voice keyer. It is very easy to use and it handles up to seven messages. By connecting your computer soundcard to your radio it's possible to just press a button and the computer will CQ for you, to spare your voice. It can also PTT your radio via the LPT port by SM3WMV
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VIT Voice Keyer
- The VIT Voice Keyer is a simple soundcard based voice keyer. It plays various recordings and output them to your radio and key the PTT line.