Low Loss 2m 144–148MHz 200W Narrow BandPass Filter

Full US band coverage 2m 144–148MHz 200W Narrow BandPass Filter will clean output signals of any transmitter with power up to 200W. It can also be used as a filter in front of any broadband preamplifier to protect from any out-of-band signals. Band Pass filter contains high-Q coils and capacitors designed to achieve extremely low loss.

The filter will reduce the TVI problem or your problem with neighbors with strong HF, 6 m, or 70 cm transmitters.

 

2m 144–148MHz 200W Narrow BandPass Filter appearance:

 

2m 144–148MHz 200W Narrow BandPass Filter measured results:

Insertion loss:
1.8 MHz 109dB
3.8 MHz 109dB
7.1 MHz 100dB
14.1MHz 100dB
21.2MHz 93dB
28.4MHz 82dB
50 MHz 68dB
54 MHz 65dB
70.2 MHz 55dB
88 MHz 44dB
108 MHz 30dB
144 – 148 MHz 0.2dB, Return Loss -35dB
222.2 MHz 41dB
288 MHz 54dB
432.1 MHz 56dB
1296 MHz 35dB

Maximum power input at SWR:
1:1 = 200 W; 1:1.5 = 140 W; 1:2 = 110 W; 1:3 = 85 W (Intermittence 50%)

 

2m 144–148MHz 200W Narrow BandPass Filter Measured Return Loss and Insertion Loss

 

144–148MHz 200W Narrow BandPass Filter Measured SWR

 

2m 200W Narrow BandPass Filter HF Attenuation

 

2m 144–148MHz 200W Narrow BandPass Filter 10m 6m and 4m Attenuation

 

2m 144–148MHz 200W Narrow BandPass Filter FM 2m 288MHz Attenuation

 

 

2m 144–148MHz 200W Narrow BandPass Filter could be ordered with outdoor housing
Add 10 EUR for the plastic box “DB“ and bracket