| Parameter | 3 dB couplers (bridges) | Measuring directional couplers |
| Frequency range | 1-2 TV channels (48,5...66 MHz) FM (66...74 MHz) FM (87,5...108 MHz) 3-5 TV channels (76...100 MHz) 6-12 TV channels (174...230 MHz) 21-69 TV channels (470...860 MHz) |
1-2 TV channels (48,5...66 MHz) FM (66...74 MHz) FM (87,5...108 MHz) 3-5 TV channels (76...100 MHz) 6-12 TV channels (174...230 MHz) 21-69 TV channels (470...860 MHz) |
| Maximum power, kW | <= 30 | <= 30 |
| VSWR | <= 1,1 | <= 1,1 |
| Directivity, dB | – | => 20 |
| Coupling attenuation, dB | 3 ± 0,4 | 30—60 |
| Inputs isolation, dB | => 25 | – |
| Connectors | N-type, 7/16 DIN, 7/8" EIA, |
N-type, 7/16 DIN, 7/8" EIA, |
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| 3DBU-10-07 21-69 TV channels 10 kW |
3DBU-10-xx 21-69 TV channels 10 kW |
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| 3DBU-4-01 21-69 TV channels 4 kW |
3DBU-4-02 21-69 TV channels 4 kW |
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| 3DBU-4-03 21-69 TV channels 4 kW |
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