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AD913 Simplex Radio Adapter
Allows combined wired/radio systems to be assembled
Interfaces with most good simplex radio transmitters
Audio connections transformer balanced to reduce hum and interference
Presets multi-turn types for easy adjustment
Robust extruded case - virtually indestructible
Industry standard XLR type connectors
The AD913 allows communication between a Tecpro wired system and a simplex radio system, typically a pair or more of Walkie-talkies. It allows audio on the wired comms system to be transmitted to remote radios, and replies from these remote units to be heard by parties on the wired system circuit.
The unit provides a mic level output for connection to a transmitter and has a phone level input to accept a receiver. In addition it has arrangements to provide a push-to-talk (P.T.T.) or transmit on switching, operated by the signal lamp of outstations on the wired circuit to which the AD913 is connected. Any outstation can activate a radio transmission by depressing the signal lamp switch. The system signal lamps on other outstations will light in the normal way, and the speech on the wired circuit will be sent to the transmitter and the necessary transmit will be activated. All stations will hear incoming calls when the signal is off.
Technical Specification
| Power requirements: | 24-30 DC, 15-25mA from comms system |
| External input: | To suit earphone/speaker levels, 10k ohms nom. balanced and floating |
| External output: | To suit mic inputs, 200 ohm nominal source balanced and floating, open circuit in receive mode |
| External PTT: | Single pole contact, closed circuit in transmit, rated 0.25A at 28V DC |
| Connections: | Transceiver via XLR 6 pin male (Neutrik). Intercom ring (2-wire) via XLR 3 pole male and female (loop-through) |
| Optional accessories: | AL919 is a readymade cable to interface the AD913 to the TTI FreeQuency TX-1446 and Maxon SL55 series handportables. AL920 interfaces to the Multicom Junior 446MHz series. |
| Dimensions: | 107 x 93 x 50mm |
| Weight: | 450g |
| Construction: | Black anodised extruded case with glass filled nylon bezels for protection |
SKU: 1231
