UHF Compact Wireless Call Box with Relay - Green

When you need wireless communication in a location and you need it fast, this compact callbox is the perfect answer.
This fully self-contained unit can be powered by an external power source or by alkaline batteries, which means installation can consist of simply installing batteries and mounting it where you need it. It can talk to either hand-held radios or surface-mounted base stations at distances of up to a mile. This is the perfect solution to eliminating expensive trenching and wiring.

If you need to remotely unlock a door or gate you can do that too. Some of our UHF radios have a pre-programmed button that can activate a relay/switch in the callbox. Connect that to your door or gate and you can let visitors in from a distance.
The relay can be programmed in several ways for different uses:

• Switch on when called - Switch closes (turn on strobe etc.) when the callbox first receives a call. Switch opens as soon as the PTT button is pressed, or if the callbox has not been used longer than its reset time.
• Switch on when active - Switch is closed (turn on strobe etc.) as long as the callbox is in use. Switch opens when the callbox has not been used (transmit or receive) longer than it's reset time.
• Switch is closed (turn on strobe etc.) when the callbox receives or transmits a message until a 2-Tone code is sent from a programmed button on a radio.
• Switch momentary - Switch is closed for 1 second when the correct 2-tone code is received. Time can be extended up to 255 seconds
• Switch toggle - Switch alternately closes and opens with the correct 2-tone code is received.

There is no need for an external antenna since the unit has a built-in antenna, but if you need to overcome obstacle challenges or to reach longer ranges, an external antenna accessory cable is available that enables using a different antenna mounted higher.

You can have us program this callbox to any frequency you want. We need to know the frequency and the Interference Eliminator code (also called CTCSS, PL tone, DLC and others) to set them to.

The unit comes with two mounting brackets for flat surface mounting, or you can purchase an optional gooseneck pedestal pole mounting bracket for pole mount installations. Since the callbox seals with four security Torx screws, a Torx bit is include too.

This unit also has the ability to broadcast recorded messages that can be transmitted to receiving radios or played on the speaker when the Push-To-Talk button is pressed:

• Voice Alert (4 seconds max) - Message is transmitted when the PTT button is first pressed
• Greeting Message (12 seconds max) - Message plays on speaker when PTT button is first pressed
• Sensor Detect On (4 seconds max) - Message is transmitted when Sensor input is closed
• Sensor Detect Off (4 seconds max) - Message is transmitted when Sensor input is opened
• Low Battery (4 seconds max) - Message is transmitted when low battery voltage is detected
• Power Fail (4 seconds max) - Message is transmitted when a +12VDC power fail is detected