Tracking Transmitter XFM1
The XFM1 transmitter is a crystal controlled tone modulated FM transmitter designed for model rockets locating but suitable for wildlife, balloons and many other applications requiring a small, frequency stable FM transmitter. Use this transmitter with a scanner or 2 meter amateur radio receiver. Transmitter ground range is approximately 400 yards (5 feet above ground) . Field tests were done with a ICOM IC-W32A transceiver with 0.16 micro volts of receiver sensitivity through the standard 8 inch antenna. Air to ground transmissions can improve range significantly (several miles) as will a directional high gain antenna or a more sensitive receiver.
KIT $15.00 USD SOLD OUT
Frequency | 147.455 – 147.460 Mhz - Crystal controlled. 2 meter ham band |
Mode | FM |
Transmission | 15 beeps followed by call sign or "XFM1" in Morse code |
Size | 2”x5/8” |
Antenna | 12 inch, can be coiled |
Weight | 8 grams (0.3 oz) includes batteries |
Battery life (using 2 BR1632 batteries) | 4 days |
Ground Range with counterpoise | 1200 feet (5 feet above ground) |
Air range | many miles (depends on receiver, antenna and altitude) |
Use | Model rocket, model aircraft, balloons, wild life locating |
Receiver | 2-meter (144 – 148 MHz) receiver with at least 0.16 micro volts sensitivity |
Receiver Antenna | directional antenna recommended but not required. |
Other | Knowledge of radio direction finding |
Other | standard through-the-hole components |
E-Mail to:
jerry_baumeister@msn.com
Copyright ©,Jerry Baumeister
7-2-2015