31. Small FM Transmitters for Beacons or Fox Hunting. ZS6RVC Weekend projects. early 1990's.

Here are a couple of small FM transmitters that you might find interesting:

1. NTX2 UHF Narrow Band FM Transmitter:

   - The NTX2 transmitter, along with the matching NRX2 receiver, offers a low-power, reliable data link. It's designed for applications where existing single-frequency wideband UHF modules have insufficient range.

   - Available for license-exempt operation in the 433 MHz (EU) and 458 MHz (UK) bands.

   - Features include effective screening, internal filtering to minimize spurious radiation, and compliance with EMC standards.

   - Ideal for point-to-point and point-to-multipoint wireless links, sensor nodes, EPOS (electronic point of sale), inventory tracking, telemetry, and more.

   - Suitable for battery-powered portable applications due to its small size and low power consumption.

   - Usable range over 500 meters¹.

2. Graphene Nanomechanical FM Transmitter:

   - Researchers at Columbia University built the world's smallest FM transmitter using a graphene nanomechanical system (NEMS).

   - This tiny device oscillates at a frequency of 100 MHz.

   - Potential applications include sensing tiny masses and on-chip signal processing².

Feel free to explore these options further! 😊

Source: Conversation with Copilot, 2024/07/14

(1) NTX2 | UHF Narrow Band FM Transmitter - Radiometrix. https://www.radiometrix.com/product/ntx2/.

(2) Nanomechanical FM transmitter is smallest yet – Physics World. https://physicsworld.com/a/nanomechanical-fm-transmitter-is-smallest-yet/.

(3) The world's smallest FM radio transmitter - made from graphene. https://www.extremetech.com/extreme/171309-the-worlds-most-smallest-fm-radio-transmitter-made-from-graphene.