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300 Hz CW Narrow Crystal Filter
The Down conversion 9 MHz 1st IF frequency receiver construction, can realize narrow 300 Hz (optional), 600 Hz and 3 kHz bandwidth roofing filters.
Implementing the extra sharp Crystal Roofing Filters provides superior close-in dynamic range and affords the best receiver performance possible. 300 Hz CW Narrow Crystal Filter for the FTDX-3000
