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15-37-09
15-37-09

15-37-09, 144-174 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.

Cavity Filters
15-37-09
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product specifications:
Item No
15-37-09
Item Name
144-174 MHz, Vari-Notch Cavity Filter
Frequency Range
144-174 Mhz
Minimum Separation - Pass to Notch
320 kHz
Frequency Separation
320 kHz
500 kHz
1 MHz
2 MHz
Attenuation vs Pass to Notch
18 dB @ 320 kHz
24 dB @ 500 kHz
35 dB @ 1 MHz
44 dB @ 2 MHz
Power Rating
150 W
Impedance Ω
50
VSWR
1.25:1 max.
Cavity Length - Electrical
1/4λ Low Pass
Temperature Range
-30 to +60 °C
Cavity Diameter
4"
Number of Cavities
1
Connectors
N
Cavity Height
15" w/ tuning rod extended, 20" max.
Width
4"
Depth
4"
Shipping Weight
5 lbs.