Duplexer VHF – UHF for Amateur Radio
Duplexer VHF – UHF ( used Notch Filters )
Duplexers composed by 2+2 or 3+3 notch cavity filters in quarter wave high “Q” ,externally made of Alodyne aluminum, with internal lines of silvered copper and PTFE insulator.
They are produced for VHF and UHF range of frequency and tipically they are used for amateur radio repeater with single antenna.
Technical Data
| ADB/22V-50 | ADB/22V | ADB/33V | ADB/22U | ADB/33U | |
|---|---|---|---|---|---|
| BAND | 50 – 60Mhz | 140 – 180Mhz | 140 – 180Mhz | 430 – 560Mhz | 430 – 560Mhz |
| CHANNELS SPACING | 500Khz | 600Khz | 600Khz | 1.6Mhz | 1.6MKhz |
| IMPEDANCE | 50 Ohm | 50 Ohm | 50 Ohm | 50 Ohm | 50 Ohm |
| V.S.W.R. | < 1.2:1 | < 1.2:1 | < 1.2:1 | < 1.2:1 | < 1.2:1 |
| INSERTION LOSS | <1.5db | <1.5db | <2.2db | <1.5db | <2.2db |
| ISOLATION | >70 db | >70 db | >95 db | >70 db | >95 db |
| WORKING TEMPERATURE | 10-40° | 10-40° | 10-40° | 10-40° | 10-40° |
| CONNECTORS | N | N | N | N | N |
| POWER | 100W | 100W | 100W | 100W | 100W |