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OM6BPF

General description of the Band Pass Filter OM6BPF

The Band Pass Filter OM6BPF is designed for all short wave amateur bands from 1.8 till 29 MHz (exclusive WARC – bands ) for 200 W power.


Specification of OM6BPF:

Frequency coverage: amateur bands (1.8 – 29.7) MHz exclusive WARC
Design: 3 resonator filters
Power rating: 200 W in SSB, CW, RTTY, AM and FM
Input impedance: 50 ohm
SWR: Less then 1.2 : 1 across band
Output impedance: 50 ohm unbalanced
Insertion loss: very low insertions loss due to High – Q capacitors, hand tuned for maximum performance
Control methods: Automatic with Yaesu, Icom, Elecraft, OM Power automatic amplifiers, Band decoder for example microHAM devices
Power supply: External between + 12 V to 15 V
LED indicators: Automatic mode
Band indications
Bypass Mode
Parameters: 210 mm x 75 mm x 320 mm (width x height x depth)
Weight: 2.3 kg

Measured Typical Band to Band Rejection

MHz max. loss (dB) max. SWR Crossband minimum loss (dB)
1.8 0.25 1.1 3.5 MHz 7  MHz 14 MHz 21 MHz 28 MHz
2.0 0.25 1.1 47 70 60 53 70
3.5 0.25 1.1 1.85 MHz 7  MHz 14 MHz 21 MHz 28 MHz
3.8 0.25 1.1 42 46 60 55 50
7.0 0.3 1.15 1.85 MHz 3.5 MHz 14 MHz 21 MHz 28 MHz
7.3 0.3 1.15 66 46 70 55 47
14.0 0.3 1.15 1.85 MHz 3.5 MHz 7  MHz 21 MHz 28 MHz
14.4 0.3 1.15 80 62 41 38 60
21.0 0.4 1.2 1.85 MHz 3.5 MHz 7  MHz 14 MHz 28 MHz
21.5 0.4 1.2 75 75 65 35 58
28.0 0.4 1.2 1.85 MHz 3.5 MHz 7  MHz 14 MHz 21 MHz
29.7 0.4 1.2 80 90 70 47 27

Typical Filter Response

160m band

80m band

40m band

20m band

15m band

10m band