Broadcast Band Rejection Filter

This high performance filter is designed for those who suffer from Broadcast Band (BCB) interference. It is especially helpful for those who DX the lower shortwave fequencies (< 7 MHz) where spurious BCB signals appear.

The BCB filter is inserted between the antenna and the receiver. It is designed to perform as a receive only filter with a maximum signal transfer of one watt. Any BCB signal below 1.70 MHz is heavily attenuated. Signals above 1.75 MHz pass with virtually no attenuation.

Specifications:

• Input/Output Impedance: 50 ohms

• Passband insertion loss @ 3.0 MHz: -0.5 dB

• -60 dB attenuation point: 1.22 MHz
  Signals below 1.2 MHz are attenuated 60 dB

• Static protection is provide on the input.

Filter Response

BCB Rejection Filter: $65.00
Options: BNC connectors add $3, N connectors add $6, gold female SMA connectors add $18.
Shipping and Handling $8.00 ($10.00 outside North America)

BCB Rejection Filter with improved High Frequency Response
The standard BCB Filter is designed with an upper high frequency limit of 30 MHz. The BCB-HF model extends the high frequency response to 100 MHz.

Response

3 MHz   +/-0 dB

10 MHz  +0.4 dB

20 MHz  +0.5 dB

30 MHz +0.55 dB

50 MHz  +0.7 dB

70 MHz  +1.0 dB

90 MHz  +1.1 dB

100 MHz +1.2 dB

200 MHz +3.0 dB

300 MHz +3.5 dB

400 MHz +2.4 dB

500 MHz -3.2 dB

BCB-HF Rejection Filter: $75.00
Options: BNC connectors add $3, N connectors add $6, gold female SMA connectors add $18.
Shipping and Handling $8.00 ($10.00 outside North America)

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