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For the 146-MHz Command Transmitter (A3029A), see here. There are four indicator lamps, from top to bottom: LWDAQ Power (green), Boost Power (blue), Activity (amber), and Transmit (white). A Loop Antenna ( A3015C) provides omnidirectional transmission for implanted 910-MHz crystal radio receivers. Output power on the BNC socket of the enclosure is 1 W. We see the LWDAQ branch cable and 24-V boost power cable entering on the left. The enclosure top is machined out of one piece of cast aluminum for better heat conduction and grounding. The 146 MHz and 915 MHz command frequencies are accurate to ☐.01 MHz, which permits sharp, fixed tuning of the the ISL crystal radios.įigure: 910-MHz Command Transmitter (A3029C) in Enclosure. The A3030C responds to 915 MHz commands, and is compatible with the A3029B. The A3030A and A3030B respond to 146-MHz commands, and are compatible with the A3029A. The A3029 is intended for use with our Implantable Sensors with Lamp ( ISL), such as the A3024 and A3030. The A3029A produces 146 MHz and the A3029B produces 915 MHz. The Command Transmitter (A3029) is a 1-W, 50-Ω, on-off modulated radio-frequency transmitter with a BNC socket for a transmit antenna. The Command Transmitter (A3029) will soon be replaced by the Telemetry Control Box ( A3042-B). Command Transmitter (A3029) Command Transmitter (A3029)