Product

Product Overview

Single cavity filter, with low passband insertion loss and high out of band rejection, is used to improve the selectivity of airport VHF radio receivers, isolation between transmitters, and effectively suppress out of band noise and intermodulation interference.

The single cavity filter is a selective band-pass filter. For the operating frequency F0 set by the cavity filter, the coupling passes with the minimum insertion loss, which is generally lower than -1.5dB. For the RF signal with the operating frequency F0 plus or minus ± 500KHz, it is expected to obtain a attenuation amount less than -15dB.

Product Characteristics

1. Tuning frequency range: 118-142 MHz.

2. Input and output impedance: 50 ohms.

3. Maximum input power: 200 watts.

4. Number of channels: 1.

5. Insertion loss: adjustable, ≤-1.5dB.

6. Default debugging frequency: 127.5MHz.

7. Reverse loss: ≥ 14dB, typical value ≥ 20dB.

8. Frequency selectivity: ≤ -15dB (carrier frequency ± 500KHz).

9. Frequency tuning mode: rotate the knob to stretch.

10. Connector: N female.

11. Size: 21cm (L) X21cm (W) X67cm (D).

12. Weight: 7Kg.

Product Appearance

Case Analysis

The network analyzer N9913A measures the single cavity filter with a working frequency of 121.625MHz and an insertion loss of -1.88dB.