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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.

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.

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.

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

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

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

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

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

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

Connection between your FT817 and PC

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

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

Add-on audio DSP unit from BHI

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

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

Adding a Panadapter to the Yaesu FT-817

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

Python implementation of CAT system for Yaesu FT-817ND

How to build a lightweight amplifier that can be backpacked around.

GM1SXX review of the Yaesu FT-817ND

Collection of accessories that makes the Yaesu FT-817 more enjoyable.

A library for controlling the FT817 from an Arduino

FT-817 Radio Modifications, Improving the FT-817 Noise Blanker, increasing output power, using rechargeable cells, epanding frequency range

A site dedicated to the Yaesu FT-817 and FT-817nd, The great little transceiver made by Yaesu. A web site full of FT-817 videos and articles

Installation of FT817 RF Speech Clipper into Yaesu's MH-36 DTMF Microphone

A personal review about the Yaesu FT-817

FT-817 manuals and schematics and diagrams

CAT and Digital modes interface for the Yaesu FT-817

Yaesu FT817 all band, all mode handheld transceiver article.

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 solid state power amplifiers.

Observations from Scotland, 3rd September 2006 by GM1SXX

Adapting a Wouxun/Kenwood USB cable as a Yaesu FT-817 FT-857 FT-897 CAT connection

A web page dedicated to the Yaesu FT-817 with lots of links and usefull resources

Noise canceling DSP for ham radio good for Icom, Yaeu, Kenwood and any kind of radio

Current consumption of the Yaesu FT-817

QRP Operations by RV3APM

A very small receiver converter that can be plugged to the backside of the battery powered portable transceiver FT817 from Yaesu. A high performance receiver for 2.3GHz amateur radio signal

Reflected power and VSWR Metering on Yaesu FT-817, and proper interpretation of real values. The power output meter it is a relative indicator of the antenna match that the radio is experiencing. Reference table and how correctly read the values of the Yaesu internal meter.

The GAWANT Antenna, or Shinagawa Antenna is an half-wave vertical end-fed in a FT817-friendly package

This interface includes both the CAT and the PTT circuits,and it can be controlled from a single COM port for the Yaesu FT-817 transceiver

One of the interesting features of the FT-817 is that many of the conventional calibration settings that would have, in the past, been done using manual adjustments of coils, capacitors, and potentiometers, are done via software.

Serial CAT interface to control a Yaesu FT-817 transceiver. Inspired in the James Buck (VE3BUX) FT-857D library and crafted to Andy Webster FT-817_Buddy project, but usable by anyone to control a FT-817 radio.

Go portable with an external battery pack. The built-in batteries will not last thirty minutes when transmitting, that's not really practical. An external battery pack overcomes these problems.

Paul McMahon presents a compact VSWR meter designed for QRP portable use, ideal for SOTA operations with rigs like the FT817. The device, constructed from readily available components, employs a simple resistive bridge for wideband performance from 1.8MHz to 52MHz, with diminishing accuracy at higher frequencies. Key features include no need for external power, simple calibration, and operation with low power levels. The design, detailed with parts lists, schematics, and construction guidelines, ensures a 2:1 worst-case VSWR to protect transceivers during antenna matching. Calibration points are set for accurate VSWR readings at various loads.

Operating the FT-817 from various types of batteries, such as Alkaline Cells, NiCd or NiMH rechargeable batteries. An useful article that compares usage of different types of batteries for the Yaesu FT-817

Setting up the Yaesu FT-817 and Signalink for data mode communication. Hardware and software required for data mode communication, connect and configure FT-817 and Signalink

The article explains how to adapt the YAESU FT817 transceiver so that it can be used to control Kuhne electronic transverters by transmitting at +12V via the coaxial wire. Different FT817 versions imply that some of the modification proposals that have been made so far don't apply to everyone. This tutorial provides a workaround that works with all FT817 models. It makes use of the external ACC socket, connecting an interior tiny circuit board to two thin wires. Follow ON7WP's instructions for using the rear antenna socket.