top of page
57-45-04 Combline Filter/Preselector
SKU 57-45-04
57-45-04
Designed for minimizing interference from adjacent channels and outside systems
- Temperature-compensated to ensure frequency stability
- High attenuation to minimize desense and interference from adjacent systems
- Silver-plated loops and tuning rods
Description
The combline filters are designed for minimizing interference from adjacent channels and outside systems. They are available in a wide range of bandwiths and frequency splits. Used in front of a wideband receiver multicoupler, the preselectors narrow the passband to the desired bandwidth. Each filter is temperature-compensated for operation between -40ºC to +60ºC. Each filter has silver-plated loops and tuning rods. Our preselectors are available in a wide range of frequency splits, bandwidth and cavity sizes. • Temperature compensation: ensures frequency stability • High attenuation: minimizes desense and interference from adjacent systems Other preselectors are also available. They include comblines and our full line of cavity-based preselectors. Sizes range from the very compact 1” helical filter to the very selective 6.625” cavity preselector. Please contact a technical support technician for consultation.
Additional information
| Frequency Range, MHz | 450-470 |
|---|---|
| Type | Combline |
| Insertion Loss Bandwidth, dB | 3 |
| Pass Bandwidth, MHz | 4 |
| Return Loss, dB (VSWR) | 20 (1.22) |
| Typical Selectivity, dB @ MHz | 38 @ 5 |
| Temperature Range, ºC | '-30 to +60 |
| Input Power, Watts | Rx only |
| Connectors, Antenna/Output | N-F/N-F |
| Finish | Black |
| Dimensions H x W x D, in (mm) | 5.25 x 19 x 4.5 (133 x 686 x 114) |
| Cavity Size | Combline |
| Frequency Range | 406-512 MHz |
Ordering Information
Specify working frequency, bandwidth, power and isolation required
bottom of page