Circuit Lake » Transmitter

5W VHF TV Transmitter

admin — Thu, 06 Oct 2011 05:13:27 +0000

This VHF TV TRANSMITTER can be used to transmit movies from your PC to your living room, run a college TV station, hotel cable system info pages, re-transmit the TV program you’ve never been able to receive in your valley, cover rural areas of Africa with TV signal from satellite stations and other system [...]

Wireless RF Temperature Transmitter

admin — Wed, 03 Mar 2010 15:40:53 +0000

The purpose of the project is to monitor the temperature of three compost heaps. It will send the data wirelessly to the receiver and process or display the result to PC. In the transmitter board, the project uses the TXM-433 as RF transmitter and MCU AVR AT90S4433 (you can replace it with AVR ATMEGA8) [...]

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40W Power Amplifier for FM Broadcast

admin — Tue, 09 Jun 2009 23:49:20 +0000

If you want to boost the output power of your low power FM broadcast band exciters then you can try this project, 40W broadband VHF RF Power Amplifier. The amplifier design is based on the recently introduced (1998) Motorola MRF171A MOSFET. The initial feasibility was performed using a linear RF and microwave simulation package, specifically [...]

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FM Tracking Transmitter Using PIC and Crystal

admin — Sat, 16 May 2009 22:27:46 +0000

If you need need small and frequency stable FM transmitter for your application then you can try XFM1 transmitter. The XFM1 transmitter is 147.460 MHz crystal controlled tone modulated FM transmitter. The transmitter is tone modulated by a microcontroller PIC 12F675 approximately every two seconds. A Morse code call sign ID is transmitted approximately every [...]

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