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PRO-LPZ 175

Coaxial Low-Pass Filter for passing the frequency range 135 - 175 MHz
Description
  • The PRO-LPZ 175 is a high-performance Low-Pass filter with low insertion loss and high rejection.
  • The product is developed using stepped impedance design principles (Zolotarev characteristic), providing rejection up to 8 GHz.
  • Adding the PRO-LPZ 175 to e.g. a VHF150 radio system ensures that no harmonics or other spurious emissions in the stop band from the radio system itself will be broadcasted by the antenna.
  • The PRO-LPZ 175 attenuates radiation from outside sources, such as adjacent radio systems transmitting in the stop band of 350 MHz – 8 GHz. If stopband up
    to e.g. 12 GHz is requested, please ask for availabilty.
  • The Low-Pass filter is typically used with base station transmitters, but its mechanically rugged design makes it perfectly suited for mobile and marine applications as well.
Specification
Electrical
Model PRO-LPZ 175
Frequency Pass band : 135 – 175 MHz
Stop band : 350 MHz – 8 GHz
Max. Input Power 150 W
Insertion Loss ≤ 0.4 dB
1 dB Cut-Off Frequency > 180 MHz
VSWR < 1.5:1
Stop Band Attenuation > 60 dB
Environmental
Operating temperature range -30 °C to +60 °C
Mechanical
Connection(s) N(f)
Historic Brand Amphenol Procom
Dimensions 436.4 x 36 x 32 mm /
17.18 x 1.42 x 1.26 in.
Weight Approx. 1.3 kg / 2.9 lb.
Ordering Codes
Model Product No.
Coaxial Low-Pass Filter for passing the frequency range 135 – 175 MHz 200002962
Additional Information
Typical Gain and VSWR curve

PRO LPZ 175 VSWR plot

Mechanical Dimensions

PRO LPZ 175 mounting details

All dimensions are given in mm [in.]

PROCOM A/S reserves the right to amend specifications without prior notice
PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark
Generated : 2026-06-27 Version 1