144 - 148 MHz Economical Receiving Band-Pass Filter

  • 144 - 148 MHz Economical Receiving Band-Pass Filter

144 - 148 MHz High Selectivity, Low Loss Receiving Budget Band-Pass Filter.

Low loss of filter achieved by careful design and adjustments.

Electrical Specifications:
Frequency range: 144 - 148 MHz
Insertion Loss: < 0.4 dB
Input return loss: < - 20 dB
Nominal Impedance: 50 Ohm
Connectors: "N"
Attenuation of nearest band:
1.8 MHz 97 dB
3.5 MHz 85 dB
7.1 MHz 75 dB
14.15 MHz 63 dB
21.2 MHz 58 dB
28.4 MHz 54 dB
50 MHz 46 dB
54 MHz 45 dB
70 MHz 40 dB
70.5 MHz 40 dB
88 MHz 35 dB
98 MHz 31 dB
108 MHz 27 dB
144 MHz 0.36 dB, RL = - 24 dB
146 MHz 0.37 dB, RL = - 24 dB
148 MHz 0.38 dB, RL = - 24 dB
288 MHz 44 dB
432.1 MHz 49 dB
1296 MHz 41 dB

Metal box size: 85 mm x 50 mm x 40 mm.

Measurements: The recorded data on the assembled filter with HP8753ES full 2-port calibrated are presented.

1. Attenuation curves.

2. HF attenuation on 2 meter bandpass filter.

3. Attenuation on 50 MHz and 70 MHz for 144 MHz Budget Band-pass filter.

4. FM attenuation on 144 - 148 MHz bandpass filter.

5. Harmonic attenuation (suppression).

6. Flatness of 2m band-pass filter. S21 (Attenuation) is set to 0.5dB per div! Next graph shows excellent flatness across whole 2 meter band.

Similar 2 meter band filters:

144 MHz Band-pass Receiver for Ham: 144 - 146 MHz Low Loss Band pass Filter

144 MHz Band-pass with pre-amplifier: 144 - 146 MHz Bandpass + Preamplifier

144 MHz 100 W Band-pass for Ham: 144 - 148 MHz 100 W Receiving and Transmitting Band pass Filter

144 MHz 200 W Band-pass for Ham: 144 - 146 MHz 200 W Receiving and Transmitting Band pass Filter

144 MHz 1500 W Band-pass for Ham: 144 - 148 MHz Low Loss High Power Band pass Filter 1.5 kW

144 MHz 4000 W Band-pass for Ham: 144 - 148 MHz Low Loss High Power Band pass Filter 4 kW

144 MHz EME 3 Band-pass preamplifier: 144 - 148 MHz EME 3 Filter + Relay + Preamplifier


  • Product Code: 0642
  • Availability: In Stock
  • 53.00€


Tags: 144MHz, 145Mhz, 146MHz, 148MHz, 2meters, BandPass, RFI, Filter, BPF, Low Loss, Rx, Receiving, Ham, Radio, Economical, Budget