3-Channel Cavity Combiner VHF (8-Inch)
3 channel VHF combiner, 136-175 MHz, > 75 dB Tx-Tx isolation, 3.0 dB IL @ 150 kHz, 150 W.
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Frequency136–175 MHz
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Power15 W
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Isolation> 75 dB
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Insertion loss< 3 dB
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ConnectorN-Female
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Weight20 kg
Specifications
| Frequency range | 136–175 MHz |
|---|---|
| Power handling | 15 W |
| Insertion loss | <3 dB |
| Tx-Rx isolation | >75 dB |
| VSWR (max) | 1.5 |
| Impedance | 5 Ω |
| RF connectors | N-Female |
|---|---|
| Weight | 20 kg |
| Dimensions (H × W × D) | 850 × 482 × 578 mm |
| Channels | 3 |
|---|---|
| Cavity Diameter Inch | 8 |
| Isolation Db | 75 |
| Min Spacing Khz | 75 |
| Insertion Loss Db At 150khz | 3 |
| Frequency Stability | 0.8 ppm/C |
| Temperature Range | -30C to +60C |
| Mounting | 19-inch rack (13U) |
| Combiner Type | cavity |
All measurements at 25 °C, 50 Ω, unless otherwise noted.
Why this product
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01
Three 8-inch cavities + per-input ferrite isolators
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02
> 75 dB Tx-Tx isolation at 150 kHz spacing
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03
20 kg / 13U rack mount
Technical brief
## Topology
Three 8-inch cavities cascaded with ferrite isolators on each input. Combines three VHF carriers onto a single antenna feedline with > 75 dB Tx-Tx isolation.
## Where this fits
Mid-density VHF sites: three-radio repeater stacks, shared-antenna installations, mobile relay sites.
Related products
7-Channel Cavity Combiner VHF (8-Inch)
7 channel VHF combiner, 136-175 MHz, > 75 dB Tx-Tx isolation, 3.8 dB IL @ 150 kHz, 150 W.
- Freq
- 136–175 MHz
- Power
- 15 W
- Isolation
- > 75 dB
6-Channel Cavity Combiner VHF (8-Inch)
6 channel VHF combiner, 136-175 MHz, > 75 dB Tx-Tx isolation, 3.7 dB IL @ 150 kHz, 150 W.
- Freq
- 136–175 MHz
- Power
- 15 W
- Isolation
- > 75 dB
5-Channel Cavity Combiner VHF (8-Inch)
5 channel VHF combiner, 136-175 MHz, > 75 dB Tx-Tx isolation, 3.6 dB IL @ 150 kHz, 150 W.
- Freq
- 136–175 MHz
- Power
- 15 W
- Isolation
- > 75 dB
VHF 8-Channel Cavity Combiner (8-Inch)
136-175 MHz, 8 channels, 150 W/port, > 75 dB isolation, 4.0 dB IL @ ΔTx 150 kHz. 36U.
- Freq
- 136–175 MHz
- Power
- 15 W
- Isolation
- > 75 dB
VHF 4-Channel Cavity Combiner (8-Inch)
136-175 MHz, 4 channels, 150 W/port, > 75 dB isolation, 3.4 dB IL @ ΔTx 150 kHz. 18U.
- Freq
- 136–175 MHz
- Power
- 15 W
- Isolation
- > 75 dB
VHF 2-Channel Cavity Combiner (8-Inch)
136-175 MHz, 2 channels, 150 W per port, > 75 dB Tx-Tx isolation, 2.4 dB IL @ ΔTx 150 kHz. 9U.
- Freq
- 136–175 MHz
- Power
- 15 W
- Isolation
- > 75 dB
Need a custom configuration?
Talk to an application engineer about variants, custom tuning, or integration into an existing repeater chassis.