| PRODUCTS - LOW PASS FILTERS |
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 Low Pass Filters / High Pass Filters
PROCOM low pass filters are reliable components for different applications
Customized high pass filters available on request
 |  | As main supplier to distinguished producers and network operators, PROCOM have for many years been an international concept for reliable solutions.
Shown below are examples of PROCOM low pass filters. More products are available in the PDF Product Catalogue.
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Customized high pass filters are available on request, please contact us for further information.
LP 175 Low Pass Filter for the 160 MHz Band
The LP 175 is a low pass filter, which passes all signals in or below the 2 m-band (138-175 MHz), and rejects signals above this range.
The LP 175 is used to prevent RFI (Radio Frequency Interference) caused by excessive harmonic-generation from transmitters operating in the 2 m band.
By rejection, the filter reduces the amplitude of the harmonics and prevents them from being radiated by the antenna.
The LP 175 low pass filter has a very sharp rolloff between the passband and the stopband while at the same time keeping a low ripple in the passband.
The use of extremely high-Q resonant circuits ensures that all of the attenuation is due to reflection and not dissipation, resulting in extraordinarily low insertion loss and high power handling capability.
The low pass filter is normally used in connection with base station transmitters, but as it is mechanically very ruggedly designed, it is also perfectly suited for mobile and marine applications as well.
Materials used are brass and passivated steel, and the filter is black vinyl coated to prevent corrosion.
Download PDF file for further details and specifications about the LP 175 low pass filter.
 Please notice, more products are available in the PDF Product Catalogue.
LPZ 470 Coaxial Low Pass Filter for the 450 MHz Band
The LPZ 470 low pass filter passes all signals in or below the 450 MHz-band. Rejects signals above this range.
Absolute stop band from 760 MHz to 6 GHz – no degradation at harmonics (Zolotarev-characteristic).
Attenuation in stop band better than 60 dB. Insertion loss in pass range less than 0.4 dB. Small size (shorter than 1/4λ).
The LPZ 470 filter is used to prevent RFI (Radio Frequency Interference) caused by excessive harmonic-generation from transmitters operating in the 450 MHz band.
By rejection, the low pass filter reduces the amplitude of the harmonics and prevents them from being radiated by the antenna.
The low pass filter is normally used in connection with base station transmitters, but as it is mechanically very ruggedly designed, it is perfectly suited for marine and mobile applications as well.
Provided with brackets for panel mounting.
Download PDF file for further details and specifications about the LPZ 470 low pass filter.
Please notice, more products are available in the PDF Product Catalogue.
LPZ 960 Coaxial Low Pass Filter for the 900 MHz Band
The LPZ 960 low pass filter passes all signals in or below the 900 MHz-band. Rejects signals above this range.
Absolute stop band from 1640 MHz to 6 GHz – no degradation at harmonics (Zolotarev-characteristic).
Attenuation in stop band better than 60 dB. Insertion loss in pass range less than 0.4 dB.
The LPZ 960 low pass filter is used to prevent RFI (Radio Frequency Interference) caused by excessive harmonic-generation from transmitters operating in the 900 MHz band.
By rejection, the filter reduces the amplitude of the harmonics and prevents them from being radiated by the antenna.
The filter is normally used in connection with base station transmitters, but as it is mechanically very ruggedly designed, it is perfectly suited for mobile and marine applications as well.
Provided with brackets for panel mounting.
Download PDF file for further details and specifications about the LPZ 960 low pass filter.
Please notice, more products are available in the PDF Product Catalogue.
LPZ 1900 Coaxial Low-Pass Filter for the 1800 MHz Band
The LPZ 1900 low pass filter passes all signals in or below the 1700-1900 MHz-band. Rejects signals above this range.
Absolute stop band from 3.2 GHz to 12.4 GHz – no degradation at harmonics (Zolotarev-characteristic).
Attenuation in stop band better than 60 dB. Insertion loss in pass range less than 0.4 dB.
The LPZ 1900 filter is used to prevent RFI (Radio Frequency Interference) caused by excessive harmonic-generation from transmitters operating in the 1900 MHz band.
By rejection, the filter reduces the amplitude of the harmonics and prevents them from being radiated by the antenna.
The low pass filter is normally used in connection with base station transmitters, but as it is mechanically very ruggedly designed, it is perfectly suited for mobile and marine applications as well.
Provided with brackets for panel mounting.
Download PDF file for further details and specifications about the LPZ 1900 low pass filter.
Please notice, more low pass filters are available in the PDF Product Catalogue.
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