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Extending TX for the Kenwood TS-590s HF Transceiver

Mods for Kenwood TS-950SD / SDX

Configure the Kenwood TS-590S for Digital Voice Keying DVK, a must for contesting.

The Kenwood TS-870S HF transceiver features two state-of-the-art 24-bit 20 MIPS DSP chips, providing over 100dB out-of-passband attenuation and CW bandwidth adjustable to 50 Hz. It operates across 160-10 meters with 100 watts output, incorporating digital filtering, a beat canceller, and 100 memory channels. The radio also includes a transmit equalizer, RX antenna input, and a K1 Logic Keyer, enhancing signal processing and operational flexibility for amateur radio operators. Advanced capabilities include IF stage DSP, dual noise reduction, and an auto notch filter, all contributing to superior signal reception and clarity. The TS-870S offers a variable AGC, voice equalizer, and an RS-232C port for computer control, with Windows™ software supplied. Its built-in automatic antenna tuner functions on all bands for both transmit and receive modes, streamlining station setup and operation. Available accessories such as the DRU-3A digital recording unit, SO-2 high stability crystal oscillator, and VS-2 voice synthesizer option further extend the transceiver's utility. The unit requires 13.8 VDC at 20.5 Amps and is supplied with an MC-43S hand microphone, making it a comprehensive station component.

This document has been produced by examining the data going into and coming out of the TH-D7 HT from Kenwood.

Official kenwood document explaining proper procedure to upgrade firmware on a Kenwood TS-590S

TM-241E Picture and specifications

Articles about TM-D710 radio modifications at Mods.dk

Kenwood TS-690S Preventive Maintenance

Using the RC-D710 Display with any HT The Display Head for the Kenwood D710 mobile APRS radio contains all of the APRS functionality in addition to the normal Radio control functions.

TS-850 is not much effective on AM since it does produce fairly clean audio, however while it does noticeably improve low-end frequency response

Mobile installation of a Kenwood TM-D710 and comparison with the Yaesu FT-350R

The Kenwood TS-450S is a formidable transceiver covering 160 through 10 meters including the WARC bands with 100 watts input

The Kenwood TM-V71 and TM-D710 are the first commercially-available Amateur Radio transceivers with built-in EchoLink system capabilites.

This page describes some of the settings needed to properly connect the USB port to handle audio and PTT

eHam reviews for the Kenwood TM 241 VHF mobile transceiver

A Kenwood TM-D710A microphone (Model MC-59) is producing crackling and intermittent, poor audio so John took a peak inside to have a look around.

Kenwood TS-950SDX ESSB audio mods by voodoo labs

TS-690 50 MHz modulation problem solved

An universal antenna tuner interface, the Kenwood Remote LDG Tuner Interface by af6sa

The Kenwood TM-D710 is designed as a nearly fully self-contained APRS station, with the ability to perform most of the common APRS functions built right in.

Official Kenwood memory control program for TM-V71A / TM-V71E TM-D710A / TM-D710E RC-D710

Resources for Kenwood TS-850SAT transceiver modifications, cables and tips

Article comparing the FT-8800 to the TM-D710

Kenwood TM D710A reviews at eham.net

VHF/UHF FM Mobile Transceiver with APRS and EchoLink Functionality official Kenwood UK site

Homemade a custom programming cable that can works with Kenwood TM-V71A or TM-D710A

Large picture and specifications of popular VHF UHF kenwood amateur radio transceiver

All available frequencies & offsets configurations for repeaters can be downloaded as database for Kenwood MCP-2A memory channel programming software for TM-D710 & TM-V71. Zip file is no more available from the author, but the full table of frequencies is still online

This amplifier had the full treatment, including nichrome hairpins, but they had to be removed because of parasitics or instability.

Kantronics Pinouts with information on Icom, Kenwood Motorola, Yaesu and Vertex radio connections.

Doing the MARS Mod on the TS890S. This will take care of any of your HF or Mars needs, and any new bands added in the future. You will now have the new 60m Band also. It is unclear if it will open up the 4m Band that some EU Countries are now allowed.

Download the Kenwood TS-590S and TS-590SG virtual port Driver for Windows 10/11 and Windows 8. This driver is also valid to control TS-990S, TS-890

A Magnetic Loop Controller project details the construction and operation of an automatic tuning system for magnetic loop antennas, which are resonant circuits using an oversized inductor and an adjustable capacitor. The system employs a stepper motor to precisely adjust the variable capacitor, maintaining optimal resonance across the HF bands. It integrates with various transceivers, including _Icom_, _Kenwood_, and _Yaesu_ models, by monitoring the VFO frequency and adjusting the loop's tuning accordingly. The project provides comprehensive building instructions, a PowerPoint-style presentation, and the full source code for the controller's firmware, enabling hams to replicate and customize the design. The controller's firmware offers diverse functionality, including automatic frequency tracking, manual tuning, and SWR monitoring, significantly enhancing the operational efficiency of magnetic loop antennas, particularly for QRP and portable operations. The design emphasizes accurate capacitor positioning, crucial for achieving low SWR and maximum radiated power. Comparisons with manual tuning methods highlight the benefits of real-time adjustment, especially when operating across different bands or making frequent QSYs. The project's detailed documentation and available source code facilitate experimentation and modification by advanced builders, allowing for tailored performance characteristics.

With high impedance earphones plugged into the audio jack on the Kenwood TS-590S or TS-590SG, you can hear a really annoying noise even with the AF volume set to zero. A simple quick-and-dirty solution is a resistor in series to the audio output.

In this post, we describe how to make a pigtail cable to connect the Kenwood TH-F6A triband HT to a 12Vdc power source via an Anderson PowerPole connector.

Unveil the secrets of efficient Magnetic Loop Antenna control systems, eliminating the hassle of frequent retuning. With real-time tracking and compatibility with various transceivers, including popular models from Elecraft, ICOM, Kenwood, and Yaesu, this controller ensures seamless frequency adjustment. Explore its high-resolution stepper motor and versatile communication capabilities, revolutionizing amateur radio operation.

The author fixed a friend's Kenwood TS-850S radio, which suffered from Capacitor Plague, a common problem in 1990s electronics where capacitors leak and damage circuit boards. The CAR board, responsible for generating signals, was especially affected. The author cleaned the board, replaced the capacitors, and repaired a broken trace. Although the radio mostly functioned afterward, the "Slope Tune" control behaved abnormally. The cause seems to be a software issue, not a hardware one.

Build a cable to connect your PC to the Kenwood TH-F6A radio

The page provides a collection of modifications and upgrades for the Kenwood TS440 transceiver. Hams looking to enhance the performance or features of their Kenwood TS440 will find valuable information and instructions here. The site offers a range of mods for various amateur radio equipment, catering to a global audience of radio enthusiasts. Visitors can easily navigate to other related pages on modifications for different radio models, as well as general information on CB and ham radios.

INTERCOM is a freeware application designed for remote control of KENWOOD TMD700/710/V-71 transceivers, as well as other transceivers equipped with UP, DOWN, and PTT commands. Compatible with Windows XP and higher (32 & 64-bit), INTERCOM offers multilingual support in English and French, and can be used on Linux, Ubuntu, or Android platforms via WINE 1.0 or CROSSOVER. The software enables users to send basic commands—such as selecting TX, VFO, memory channels, or power levels—either through manual inputs or over a TCP/IP link. INTERCOM is tailored for SIMPLEX setups, facilitating the interconnection of VHF/UHF repeaters with nearby repeaters. Remote commands are transmitted using DTMF codes, which are decoded by SIMPLEX and forwarded to INTERCOM via TCP/IP. This functionality makes INTERCOM an ideal tool for radio enthusiasts and operators seeking seamless remote management of supported transceivers in simplex configurations.

Picture and features of the Kenwood TS-520S amateur radio transceiver