2 Meter 1 Watt RF Beacon

Features:

• Programmable output power 1 watt / 250mw
• Programmable IDstring (16 characters max)
• Programmable radio frequency within the 2 Meter amateur radio band (144 - 148 Mhz)
• Buck/Boost voltage regulator provides a constant voltage to maximize output power over a wide range if input voltages
• Programmable tone sequence.
• Reverse polarity protection on battery input
• Antenna: SMA (NOT INCLUDED)
• FCC Amateur Radio license required

Battery:  NOT INCLUDED

Specifications:

1. Input voltage: 3.2v to 6.0V
2. Input current:  2.0 amps (please use appropriate power source)
3. Power connector:  2-pin JST PH
4. Antenna Connector:  SMA 
5. Data interface:  USB C
6. UART settings:  9600 Baud, 8 data bits, no parity, 1 stop bit (9600 8-N-1)
7. Size: 25mm x 60mm (without SMA commentor)
8. Weight: 15g

General operation:

After power is applied, the device will  send the idstring via morse code as FM modulated tones.  Next, a programmable number of beeps ( or tones) are transmitted before repeating the sequence.

Prior to each beep, the data interface is checked for inbound commands.

To connect to the device, use a terminal emulator (Teraterm or putty, for example) set to 9600-8-N-1.

Command Mode:

Command mode will be entered when you press the '!' key.  

The following commands are available to control the radio beacon:

Notes:

  *  Beep timings are approximate due to the delay when changing radio modes

The 'mspeed' parameter controls the timing of the morse code characters (in milliseconds)