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15-35-05, 108-136 MHz, Vari-Notch Cavity Filter
The Vari-Notch® design passes a relatively narrow band of frequencies and rejects (notches out) a relatively wide frequency band. Equivalent to a combination series-tuned and parallel-tuned circuit, this filter has a greater notch depth than the Series-Notch® design. The notch depth is adjustable but varies with passband insertion loss (0.3dB or 0.6dB typical) and the difference between pass and notch frequencies. Vari-Notch® is ideal for moderately close to wide separations (200 KHz and greater) in VHF applications and (400 KHz and greater) in UHF applications.





Product Specifications 
Item No15-35-05
Item Name108-136 MHz, Vari-Notch Cavity Filter
Frequency Range108-136 MHz
Minimum Separation - Pass to Notch130 kHz
205 KHz
500 KHz
1 MHz
Frequency Separation24 dB @ 130 kHz
34 dB @ 250 kHz
43 dB @ 500 kH
47 dB @ 1 MHz
Attenuation vs Pass to Notch47 dB @ 1 MHz
Power Rating300 W
Impedance Ω50
VSWR1.25:1 max.
Cavity Length - Electrical1/4λ
Temperature Range-30 to +60 °C
Cavity Diameter10"
Number of Cavities1
Cavity Height33.5" w/ tuning rod extended, 48" max.
Shipping Weight27 lbs.