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project:repeaterlinking
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Repeater Linking
DCARA has 3 sites that all share a common control radio frequency. This allows us to link some repeaters in half-duplex, as the control link radios are a single Motorola CDM1550.
All control radios operate on the same frequency, so linking a repeater to a control radio can be thought of as adding it to a group or pool.
To link and unlink certain repeaters, it is important to understand how these sites are internally configured.
146.92 Repeater Site
- Port 1: 146.92 (TX/RX)
- Port 2: WX-250 (RX)
- Port 3: Control Radio (TX/RX, half-duplex)
| Transmit | ||||
|---|---|---|---|---|
| 1 (92) | 2 (N/C) | 3 (Link) | ||
| Receive | 1 (92) | X | A | |
| 2 (WX) | X | X | ||
| 3 (Link) | A | |||
| Marker | Function |
|---|---|
| X | Default State |
| A | Link/Unlink 92 & Control Radio |
EOC Repeater Site
- Port 1: 145.17 (TX/RX)
- Port 2: 444.050 (RX)
- Port 3: Control Radio (TX/RX, half-duplex)
| Transmit | ||||
|---|---|---|---|---|
| 1 (17) | 2 (050) | 3 (Link) | ||
| Receive | 1 (17) | X | D | A |
| 2 (050) | D | X | B | |
| 3 (Link) | X, A, C | X, B, C | ||
| Marker | Function |
|---|---|
| X | Default State |
| A | Link/Unlink 17 & Control Radio |
| B | Link/Unlink 050 & Control Radio |
| C | EOC Hot Standby |
| D | Link/Unlink 17 & 050 |
project/repeaterlinking.1515702285.txt.gz · Last modified: 2018/01/11 14:24 by ke5gdb
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