Beacons

Beacon transmitters are devices that can be set to emit coded or beeper signals. They are used primarily to provide steady signal for logging to verify proper receiver operation over the course of a study or to setup and calibrate receiving systems. Their main features are:

• A rugged aluminum housing that is water resistant when the connectors are capped.
• A BNC connector that provides a means of attaching the transmitter directly to an antenna system for testing
  and calibration (see TB-1201F Antenna Amplification Techniques).
• Replaceable batteries.
• Consistent power output (usually within 1 or 2 dB)
• User selectable codes via DIP switches or a programmable attachment.
• User selectable transmission rates and patterns.
• Constant carrier transmission mode.
• Voltage input of 10-15VDC that mutes the transmitter output which can be used to monitor supply
  voltage.

Beacons can also be produced in a programmable version. This version can take any scheduling functions just like a Pisces transmitter, see here for more details.