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Operating on the HF bands, Kenwood's TS-990S and TS-890S transceivers represent their flagship offerings, providing advanced features for DXing and contesting. My personal experience with Kenwood gear, particularly the TS-590SG, confirms their reputation for solid receive performance and clean transmit audio, often noted in pileups. The TS-590SG, a popular choice for many hams, delivers reliable performance across the HF and 6-meter bands, making it a versatile station centerpiece. For VHF/UHF enthusiasts, the TH-D75A tribander offers 144, 220, and 430 MHz capabilities in a portable form factor. This handheld unit integrates D-STAR and APRS functionalities, appealing to operators who value digital modes and location-based services on the go. The inclusion of 220 MHz, a less common but valuable band, expands its utility for regional communications and specialized nets. Kenwood's enduring presence in the amateur radio market, dating back to 1955, underscores a commitment to quality and innovation. Their product range, from high-end base stations to feature-rich portables, continues to support a wide array of operating styles and technical requirements within the ham community.

The Elecraft K3, a popular HF transceiver, is often benchmarked against new market entrants. This article critically compares the Kenwood TS-590S to the K3, focusing on key technical specifications and operational aspects relevant to serious amateur radio operators. The author proposes three distinct evaluation methods: a circuit diagram comparison, an independent review analysis (referencing Peter Hart, G3SJX, in RadCom), and a real-world "ear test" by experienced contest operators on 40 and 80 meters. The analysis delves into specific receiver components, including the first mixer design, RF and IF amplifier performance, and the presence of an image noise filter. It highlights the K3's switched mixer and the potential for the TS-590S to utilize similar or improved designs, such as a classic filter with enhanced selectivity. The article also scrutinizes the second mixer stage, noting the K3's SA612 chip and its associated IP3 limitations, suggesting Kenwood might achieve benefits with a different mixer architecture. Further points of comparison include DSP capabilities, where the K3's high-performing DSP with KK7P's involvement is noted against the TS-590S's potential reliance on newer IC technology but possibly less refined software. The discussion extends to DDS and PLL implementations for phase noise and spurious emissions, and the utility of a second receiver for DX chasing and contesting, acknowledging its importance for some operators while being less critical for others. The article concludes by emphasizing personal preference in equipment selection.

GBCAT is free PC software for controlling amateur radio devices through a COM/USB port or through a TCP/IP network, with the ability to transfer a 2-way audio signal over a TCP/IP network supporting Yaesu FT-857 FT-817 FT-897, Icom IC-706MKIIG, Kenwood TS-2000 and TS-590S by 9A2GB.

An interesting and very detailed report analysis of three populare HF+6m transceivers. Yaesu FT-950, ICOM IC-7410 and the Kenwood TS-590S by AB4OJ

Step by step instructions for setting up N1MM Logger to communicate with the TS-590S using the USB connection

A group dedicated to the HF Kenwood Transceiver TS-590 S

Kenwood TS-590S remote control software

There are 2 possible TX extensions on the E version, either full TX (1.705 - 30 MHz) or just open up 5 MHz (cut the R968 jumper and make it into a K version). This mod has been tested on TS 590S and not on TS 590SG

Download software for Kenwood Transceivers, like TS-990S TS-590S, TS-2000, TS-480HX or TS-480SAT

QST Magazine Product Reviews - Key Measurements Summary - HF-Transceivers or Receivers. Compares Yaesu FTDX5000, Elecraft K3, Flex 5000 and Kenwood TS-590S

Rigpix page for Kenwood TS-590S

Installing the optional TCXO, named SO-3 in the Kenwood TS-590S by TK5EP

Kenwood TS-590S features, accessories, specifications and details

Wiring a Balanced Microphone to the TS-590S Unbalanced Microphone Input

Here a comparison of Kenwood TS-590S used with MC-60A and the oringina dynamic microphone

Kenwood TS-590S QST review comments and table comparison vs Elecraft K3

W1AEX Audio settings and general observations

Extending TX for the Kenwood TS-590s HF Transceiver

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

Extension of the Kenwood TS-590S Programmable Function by CT7AEZ

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

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

This HOWTO explains in detail how you can use the Kenwood TS-590S USB, COM and ACC2 ports for digital operation, set up the radio for digital data and digital voice operation

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

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.

Hostilog, developed by DF1LX using Python 3.5 and PyQT5, is a logging application designed for high-speed QSO data entry, achieving rates of 300–400 QSOs per hour from handwritten logbooks. The software prioritizes keyboard input, minimizing mouse usage for efficiency. It incorporates a cluster window with RegEx filtering capabilities and facilitates UDP transfer of QSO data to _DXkeeper_ from the _DXLab Suite_. The program supports basic rig control via _Hamlib_, with configuration examples provided for radios like the TS-590S using `rigctld`. Hostilog can process 50,000-line ADIF files in under 10 seconds and includes features for combining and sorting ADIF data. While primarily a Windows application, it runs under _WINE_ on Linux, with specific notes on Ubuntu compatibility. Recent updates, including a version from August 28, 2024, address bugs and improve UI, with documentation available in both German and English.

How to use a small USB DJ controller to remote control the Kenwood TS-590s

In this article, the current consumption for a selection of popular HF transceiver was examined to determine, via an on the field comparison, whether they were right for portable operation. The radios evaluated include the Yaesu FT-857D, Kenwood TS-590SG, Icom IC-7100, and Kenwood TS-480SAT. The measurements were taken beginning frok 5W in 5W increments up to 100W. The results showed that the Kenwood TS-590SG had the highest current use while the Yaesu FT-857D had the lowest. The current consumption of all radios increased as the power output increased.

This software enables remote monitoring of the Kenwood TS-590SG HF transceiver. Based on a lightweight, text-based monitor was developed using Python and ncurses. It connects via rigctld, displaying key metrics like frequency, power, SWR, and TX/RX state with minimal data usage. Ideal for low-bandwidth remote operation, it works over SSH or mobile data. The software is open-source under GPL v3.

The KA7OEI Blog offers random musings on technical subjects related to amateur radio, with a focus on improving stability using the QRP Labs ProgRock 2. It provides insights and tips for ham radio operators looking to enhance their equipment.

The article describes ongoing issues with a new TS590s transceiver, including intermittent reception and transmission failures. After a repair diagnosed as a "Control Unit interruption," the problem persisted. The author discovered the cause was a poorly crimped CN601 connector on the Control Unit board, leading to signal loss when moved. Soldering the connector resolved the issue. Similar problems reported by other users suggest a potential defect in the cables, pointing to a possible manufacturing issue.