CW Filter Model FR4
Description
The FR4 filter is for use between receivers or transceivers, and high impedance headphones. It is a passive audio filter centered around 850 Hz. A switch is included to completely remove the filter from the headphone line for phone reception.
Specifications
- Center Frequency: 850 Hz
- Bandwidth at 6 dB Down: 400 Hz
- Bandwidth at 60 dB Down: 2.4 KHz
- Input Impedance: 2000 ohms
- Output Impedance: 2000 ohms
- Insertion Loss: Less than 3 dB
- Size: HWD 2-1/2" x 4-3/4" x 6"
- Shipping Weight: 1 lb 12 oz
- Finish: Baked enamel case, molded plastic side panels with wood grain inserts