140-174 MHz Bandpass filters PF8-1V, PF8-2V, PF8-3V

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PF8-1V
PF8-2V
PF8-3V

Electrical specifications

Model PF8-1V PF8-2V PF8-3V
Operating frequency band, MHz 140-174
Insertion loss (adjustable), dB 0,5-3 0,1-5 0,1-7
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

Mechanical specifications

Model PF8-1V PF8-2V PF8-3V
Diameter, mm (ins.) 206 (8")
Weight, kg 3,25 7,2 10,5
Connector N-female
Mount to 19-inch rack optional yes
Dimensions (LxWxH), mm 206x206x800 480x210x800 480x420x800

Using PF8-V 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. Recommended to use if equipment is installed in locations with high density of transmitting devices. Enlarged cavity diameter provides higher Q-factor comparing to five-inch filters

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




Typical selectivity characteristics

PF8-1V

PF8-2V

PF8-3V

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