One-Board Filter TM
The One-Board Filter (OBF) affords you the opportunity to have both the Collins CW and SSB mechanical filters available in your FT-817 together!
This is the option that many, many FT-817 owners have requested. The OBF utilizes Collins Mechanical Filters that are the same as used in the optional Yaesu filters for the FT-817. The bandwidth of the 7-pole CW filter is 500 Hz and the 10-pole SSB filter is 2.3 kHz. The One-Board Filter is NOW available for installation by FT-817 and FT-817ND owners. The "do-it-yourself" option should only be selected by those having the tools, skill, and experience to perform the installation. The One-Board Filter can also be installed by radioworld Turnaround time is two-business days.