Yaesu FT-847
Yaesu FT-847 resources
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General Coverage TX Mods by G1IVG. -
Visit the legendary FT-847 FAQ pages ! You'll find a huge knowledgebase especially for the Yaesu FT-847 Transceiver. -
Istructions to use the IFD demodulator -
This article presents a technical investigation into spurious emissions from the Yaesu FT-847 transceiver when operating on the 70MHz (4-meter) band. The author discovered significant problems with both factory "UK spec" and modified units. Spectrum analysis revealed that when transmitting at 70.2MHz, the radio produces numerous spurious signals, with the most prominent emission at 45.6MHz measuring only 3dB below the fundamental frequency. The study also documents poor power efficiency on 4m (10.3% at 30W output) compared to 6m operation (23.5% at 30W). Tests verified that jumper configurations had no effect on filter selection. The author warns that using these radios on 4m may violate license conditions due to excessive spurious emissions. -
With this mods you get more power, about 60W output on 4m from the Yaesu FT-847, mod by G4FUF -
Dedicated to Yaesu FT847 with mods infos and links... by F1MDT -
Some interesting mods for the 847 -
An interesting review of the Yaesu FT-847 by Mike Foubister ZL3TIC -
Picture and specifications of the Yaesu FT-847 -
Yaesu FT-847 (FT 847 FT847) transceivers mods reviews software manuals and diagrams -
Eham reviews of the popular Yaesu FT 847 -
FT-847 Specifications -
Yaesu FT 847 CAT cable -
Modification and verification of the FT847 to optimize 70 MHz performance by G4FUF -
FT-847 PA Mod, there is a better way, by G0MGX -
The mod requires an INRAD 45,705 MHz Crystal Roofing filter and the IC-765 add-in Board -
A full galvanic isolation interface for digital modes tested with FT-847 -
How to setup the Yaesu FT-847 along to the PSTRotator under Windows 10 PC with Omnirig. -
A further study of the spurious emissions from an FT847 on 70 MHz by G7CNF -
Improving the reception on 70 MHz for the yaesu FT-847 -
John Lemay’s (G4ZTR) review of the Yaesu FT-847 offers a practical look at this all-mode transceiver, spanning 160m to 70cm, including 4m. While it falls short in dynamic range and sensitivity, its "shack-in-a-box" design shines for VHF DXing and multi-band use. Lemay shares hands-on tweaks, like calibrating 70cm with beacons and integrating footswitches for SSB and CW. The TX Inhibit feature simplifies sequencing with external gear. Despite minor flaws, the FT-847’s versatility and mod-friendly nature make it a solid pick for amateur radio enthusiasts craving flexibility. -
How to install INRAD filters on the FT 847