Yaesu FT-818ND
The Yaesu FT-818 is an all mode (HF/ VHF/ UHF) portable transceiver. It provides 6W output with an external DC power source. The all mode capability sets it apart from many other mobile units.
Wide-band Transmit Modification Instructions
For unmodified radios, here are instructions for enabling wide-band transmission. It involves some basic de-soldering. Following modification, transmission is not literally possible on all frequencies due to mechanical limitations of the radio.
NOTE: Memories MAY BE LOST on completion of this project; backup memories and settings if possible. CHIRP is useful software for radio programming.1) Remove any power or battery from the Radio.
2) Remove the 14 screws holding the top and bottom covers to the radio.
3) Remove the battery cover latch.
4) Remove the covers.
5) Remove the BNC retaining nut.
6) Carefully lift the 4 plastic tabs holding the front panel to the chassis and slightly move the
front panel forward.
7) Disconnect the ribbon cable that connects the chassis and the front panel.
8) Remove the jumper at location 5. Couple the jumpers at positions 1 and 2. See photo.
9) Press and hold the "VFO/MR" key and the "F" key while turning on the radio.
10) Reassemble the radio.
Source: FT-817.com - User "Redaktion"