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Free CAT control software for Yaesu FT-100, FT-100D, FT-817, FT-817ND, FT-847, FT-857, FT-857D, FT-897, FT-897D, FT-920, FT-1000MP Mark V, VR-5000 and FRG-100 transceivers. Version 2.1 for Windows. Ths Software no more supported or developed.

Free Download of Widebander. This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults. Warining: this programs looks like not to be supported. Download and use it at your own risk.

Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug

FTBasic is a CAT control program for Yaesu radios FT100, FT817, FT847, FT1000MP Mark V and FRG100

The ultimate free CAT program for the Yaesu FT-817 include PSK31 Deluxe.

Picture collection of a whip antenna similar to the Whip Miracle, in italian

To connect up your FT-817/857/897 to a PC you have a number of options. For the serial connection you can go ahead and obtain a CT-62 from YAESU. Alternatively you can make up your box with a level converter and cable using schematic in this page

Members discuss the operation of and modifications to this outstanding QRP rig that covers 160m 70cm with all modes. Site contains a large database of FT-817 FAQs and data files. Antennas, tuners, and power sources are also covered as related to this ultra-compact transceiver.

Connect your FT-100 or FT-817 to your pc with this CAT interface cable

The complete status of the FT-817, FT-847, FT-857, FT-857D, FT-897 or FT-897D memories can be read into the computer and saved to disk. Any saved file can be subsequently reloaded into the computer and sent back to the rig. This facility uses these rig's ability to clone configurations from one rig to another using the serial port.

The FT-817 is a small 5W MF/HF/VHF/UHF transceiver with internal batteries. Here is an assortment of technical information K6XX put together about this rig that might interest you.

Build a PSK-31 PC interface for the yaesu FT-817

Low (or zero) Cost Accessories for the FT-817 Portable QRP MF/HF/VHF/UHF Transceiver

A 13,8v/5Amp 78H05 based power supply for portable use. In this example used to power up a Yaesu FT-817

Suitable antenna for owners of an IC706 or FT817, 857 and other HF portable transceivers. You can an be QRV in a few minutes on all ham-bands from 80m to 6m and even on 2m by PA0FBK

How connect a common PC headset with microphone to the Yaesu FY-817, FT-857, FT.897 in italian by I6IBE

Yaesu FT-817 Portable QRP MF/HF/VHF/UHF Transceiver, an assortment of technical information

This is a picture of a schematic diagram of a multifunctional interface for Yaesu FT-8x7 Series Transceivers. It will work for Yaesu radios like FT-897 FT-857 FT-817

Pc sound card interface for PSK31 MFSK Baudot for the yaesu FT-817

The safe RS232 CAT interface and PA buffer for Yaesu FT-817, FT-857, FT897 and FT-100 rigs

Yaesu CAT Cable for FT-817 857 897

MC-50 microphone modification for high emphasis, connecto kenwood ts-50 to kenwood radios.

An android app to remotely control your Yaesu FT 857 817 897 using a common Bluetooth CAT interface. Schematic provided.

Yaesu's FT817 and Super Antennas MP-1 review by George Heron, N2APB

A simple circuit to homebrew your own headset for the Yaesu FT-817

As seen in January 2003 QST

Connection between your FT817 and PC

Transporting Yaesu FT-817 along with antennas and other accessories.

Schematics and purchasing information for the Yaesu FT - 8x7 DIY Bluetooth CAT micro miniature interface done by YO3GGX

FT857 Programming Software works with FT817 FT897 too. Demo version available.

Presents the design and construction of the OK2FJ Bigatas, a portable, automatically tuned vertical antenna covering 80 through 10 meters. It details two distinct control systems: one utilizing BCD band data from Yaesu FT-857/897 transceivers, and another employing voltage level sensing for the Yaesu FT-817. The resource provides specific instructions for building the antenna's radiating element, loading coil with switchable taps, and the control circuitry, emphasizing the use of readily available components. The article outlines the physical construction of the antenna, including the use of duralumin tubes for the radiator and a PVC tube for the coil form. It specifies coil winding details, tap points, and the integration of radial wires for ground plane operation. The control electronics section provides schematics and component lists for both the BCD decoder (using a 74LS42 IC) and the voltage comparator (using an _LM3914_ bargraph driver), enabling rapid, automatic band switching without the minute-long tuning delays common in other systems. Crucially, the antenna achieves rapid band changes, with typical SWR values centered on common operating segments, such as **3.7 MHz** for 80m SSB. It also discusses modifications for CW operation on 80m and the trade-offs between antenna efficiency and full-range automatic tuning on higher HF bands, where manual adjustment of radiator length is suggested for optimal performance on 15m, 12m, and 10m. The resource includes construction photos and a discussion of cable requirements for reliable operation.

The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X 4 amperes. The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector by PY1AHD

FT-817 product review at eham.net

An external keypad for FT-817(ND), for the serious portable/field-day contester/operator. Homebrew it with the free firmware and public circuit diagram. The circuit is very simple and takes power supply from the ACC port of the radio

How to setup a Remote control ham radio station with Yaesu FT-8x7 radios via LAN or via internet.

John talk about Yaesu VX-3 as an interesting upgrade from VX-2, other reviews cover Kenwood TH-D7 TH-6A Icom-91A Kenwood TM-D700A Yaesu FT-817 and Icom IC-7000

This project is an interface box for the Yaesu FT-817 that includes a band output port, a computer serial interface, and a remote interface for the FL-7000 (and Quadra?) solid state power amplifiers

The SignaLink has been used with virtually every radio available, but the radio that is heard mentioned most often is the Yaesu FT-817

RF Speech Clipper into Yaesu's MH-31 Standard Microphone

Yaesu FT-817 and MFJ-616 speech intelligibility enhancer product review & short takes columns from QST Magazine

A clear description, with photos, for widebanding the FT-817nd.

DIY kits a 70W SSB linear Power Amplifier for YAESU FT-817 KX3 running HF 80m-10m bands

Adding a Panadapter to the Yaesu FT-817

Ham radio resources about qrp, dx, logging, contesting, includes lots of links to FT817 resources on the web

FT-817 compared to FT-100 and review

A 50-ohm 10W resistor forms the core of this portable QRP antenna, designed by _K0EMT_ for convenient operation on 160m and 80m. The construction involves soldering the resistor to a BNC connector, with one lead to ground and the other to the center conductor, then insulating the assembly. This minimalist design aims to provide a highly portable solution for low-band QRP operations, acknowledging the inherent trade-offs between antenna size and efficiency. Testing with an antenna analyzer revealed low SWR on both 160m and 80m, with a Yaesu FT-817 confirming good matching. While 40m and 30m showed higher SWR, the primary focus remains on the lower bands. The author successfully tested the antenna with **2.5W CW** output, demonstrating its practical application for QRP field operations where ease of deployment is paramount, even if it means sacrificing some **gain** compared to full-sized antennas.

Receiver converter that can be plugged to the backside of the Yaesu FT-817 battery powered portable transceiver

The KA7OEI FT-817 pages, customizing/accessorizing the FT-817

Python implementation of CAT system for Yaesu FT-817ND

Connecting the iPad or the iPhone to a Yaesu FT-817 using an home made cable, using common digital modes like PSK31 RTTY and SSTV. Article by Andrew VK3BQ