Dual-Cavity Bandpass Airband Filter (8-Inch)
112-137 MHz, dual cavity bandpass, 0.5-2 dB IL tunable, > 18 dB return loss, 350 W.
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Frequency112–137 MHz
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ConnectorN(f)
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Weight13 kg
Specifications
| Frequency range | 112–137 MHz |
|---|---|
| VSWR (max) | 1.5 |
| Impedance | 5 Ω |
| RF connectors | N(f) |
|---|---|
| Weight | 13 kg |
| Cavity Diameter Inch | 8 |
|---|---|
| Return Loss Db | 18 |
| Frequency Stability | 0.8 ppm/C |
| Temperature Range | -30C to +60C |
| Mounting | Suitable for 19 Inch Rack Cabinet Mounting |
| Cavity Type | BP BR |
| Filter Type | Bandpass (cascaded) |
| Dimensions | 800 x 200 x 200 mm |
| Insertion Loss | 0.5 dB - 2dB Tunable |
| Rf Connectors | N(f) |
| Max Input Power | 0.5 dB IL 300 W 2.0 dB IL 125 W |
All measurements at 25 °C, 50 Ω, unless otherwise noted.
Why this product
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01
Two cavities cascaded for > 18 dB return loss
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02
Up to 1.0 dB IL at 350 W continuous
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03
Compact 13 kg / 1050 mm chassis
Technical brief
## Construction
Two 8-inch high-Q cavities cascaded for sharper bandpass selectivity than the single-cavity variant. Return loss > 18 dB; insertion loss tunable 0.5-2 dB.
## Where this fits
Aviation receiver sites needing aggressive front-end filtering, collocation environments where out-of-band rejection drives sensitivity loss.
Related products
Single-Cavity Bandpass Airband Filter (8-Inch)
112-137 MHz, single cavity bandpass, 0.5-2 dB IL tunable, > 14 dB return loss, 350 W.
- Freq
- 112–137 MHz
8-Inch Cavity Pass-Reject Airband Filter
112-137 MHz, 8-inch cavity pass-reject, 0.3-2 dB tunable IL, VSWR < 1.5:1, 19-inch rack.
- Freq
- 112–137 MHz
Cavity Airband Bandpass — 8-Inch
112-137 MHz, single 8-inch cavity, 0.5 dB IL @ 300 W or 2.0 dB IL @ 125 W (tunable).
- Freq
- 112–137 MHz
Cavity Pass-Reject VHF (8-Inch)
136-175 MHz, 8-inch cavity pass-reject, 0.3-2 dB IL tunable, 300 W, 4.4 kg.
- Freq
- 136–175 MHz
- Power
- 3 W
Cavity Pass-Reject VHF (6-Inch)
136-175 MHz, 6-inch cavity pass-reject, 0.3-2 dB IL tunable, 300 W, 3.46 kg.
- Freq
- 136–175 MHz
- Power
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Cavity Pass-Reject VHF (5-Inch)
136-175 MHz, 5-inch cavity pass-reject, 0.3-2 dB IL tunable, 300 W, 2.35 kg.
- Freq
- 136–175 MHz
- Power
- 3 W
Need a custom configuration?
Talk to an application engineer about variants, custom tuning, or integration into an existing repeater chassis.