400-490 MHz Bandpass filters PF8-1U, PF8-1UL


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Electrical specifications

Model PF8-1U PF8-2U PF8-1UL PF8-2UL
Operating frequency band, MHz 400-490
Insertion loss (adjustable), dB 0,5-3 1-5 0,5-3 1-5
Impedance, Ohm 50
Attenuation see fig.
VSWR, not more than 1,2
Input power, not more, W not more than 300
Temperature range, °C from -30 to +60
Cavity electrical length 1/4λ 3/4λ

Mechanical specifications

Model PF8-1U PF8-2U PF8-1UL PF8-2UL
Diameter, mm (ins.) 206 (8")
Weight, kg 1,7 4,1 3,25 7,2
Connector N-female
Mount to 19-inch rack optional yes optional yes
Dimensions (LxWxH), mm 206x206x360 480x210x360 206x206x800 480x210x800

Using PF8-U series filters in antenna section of radio stations and repeaters you will raise selectivity of their receivers, lower influence of out-of-band interference, escape effect of UHF blanking by nearby radio transmitters and desensitization, and eliminate intemodulation interference, also.

Filters, installed in transmitters circuit, lower stray emission level and prevent intermodulation products occurrence. Recommended to use if equipment is installed in locations with high density of transmitting devices.

PF8-2U and PF5-3U filter represents two and three PF8-1U filters connected in series and combined by metal brackets. They have higher characteristics at corresponding loss.

Typical selectivity characteristics



The information provided on this page is not an official offer.
To verify actual parameters contact the sales department before ordering.