MAR5
Interesting transmitter on 420-480 MHz
I experimented a little with VCO from Nokia phone (R0464), added an RF amplifier and a microphone. The range of this fm bug is up to 1km with full CR2032 battery and good conditions. As the battery discharges, the range s as well as the TX frequency. The bug can be received at a frequency of around 430 MHz and that depends on the battery voltage.
Zanimljivi predajnik na 420-480 MHz
Link
Comments (0)
similar content
- Antennas for transmitters 88-108 MHz (06-02-2007) [@Schematics/Antennas]
- Transmitter and receiver for data on 433 MHz (05-10-2004) [@Schematics/Radio transmitters]
- Transmitter of AF signal (22-02-2004) [@Schematics/Radio transmitters]
- Antenna for 7 to 30 MHz (22-02-2004) [@Schematics/Antennas]
- Transmitter for 50 MHz v1 (24-02-2004) [@Schematics/Radio transmitters]
- FM transmitter 88-110 MHz (17-04-2005) [@Schematics/Radio transmitters]
- PLL bug transmitter (25-05-2006) [@Schematics/Bugs]
- Two stage FM transmitter (22-02-2004) [@Schematics/Radio transmitters]
- FM transmitter with NE555 (03-12-2006) [@Schematics/Radio transmitters]
- Video transmitter 1km range (11-09-2004) [@Schematics/Radio transmitters]
add comment
Please log-in!
You can log-in on forum link: Login page. After logging-in, return to this page and click refresh in your browser.
