400-490 MHz Bandreject filters RF8-1UL, RF10-1UL


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Electrical specifications

Model RF8-1UL RF8-2UL RF10-1UL
Operating Frequency band, MHz 400-490
Insertion loss (adjustable), dB 0,5-3 1-3 0,5-3
Impedance, Ohm 50
Attenuation (see fig.n) Δf BP/BR=200 kHz, dB 18 35 13
VSWR, not more than 1,5
Input power, not more, W not more than 300
Temperature Range with garanted stabilization, °C from -30 to +60
Cavity electrical length 3/4λ

Mechanical specifications

Model RF8-1UL RF8-2UL RF10-1UL
Diameter, mm (ins.) 206 (8") 257 (10")
Weight, kg 3,3 4,2 3,9
Connector N-female
Mount to rack optional 19" or 24"
Length/Width/Depth, mm 800x206x206 800x480x210 800x257x257

Bandreject filters RF8-UL have found themselves in radio stations and repeaters receiving section operating closely to powerful transmitter, operating at known neighboring frequency. Bandreject filter enables to effectively eliminate interference at significantly lower frequency separation, unlike bandpass filter.

Presence of 3/4-wave cavity in bandreject filter will save your transmitters from persistent signals of paging transmitters or telemetry systems, located closely to your antennas.

Careful selection of cable junction in RF8-2UL and RF8-3UL filters provides maximum convergence of pass and reject frequency preserving low 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.