Your Ad Here


All posts in the 'RF projects' Category



FunkUSB - DCF77 Receiver with USB

 

FunkUSB - DCF77 Receiver with USB
This is a DCF77 radio clock receiver which connects to the host computer via USB using a small 8-pin microcontroller ATtiny45 and programed with the smart firmware called AVRUSB and AVR-CDC. With this firmware combination, the DCF77 receiver creates a serial port and is fully compatible to old-style true-serial-port ones. No software adaption is necessary. Note the DCF77 signal can’t be received far away from Germany anyway.[more]

Posted in : AVR projects | RF projects | USB projects

R/C Transmitter Range Tester

 

R/C Transmitter Range Tester
This handy gizmo is ideal for checking the output power of your R/C transmitters. Four super-bright LEDs are used in place of the usual analogue meter, allowing for easy viewing of the monitored RF signal. An on-board variable capacitor sets the frequency for 27Mhz, 35MHz or 40Mhx transmitters. Ham Radio operators might wish to experiment with the front-end L/C tank for frequencies other than standard R/C.[more]

Posted in : Measurement projects | RF projects

Infra/radio remote control transmitter/receiver with PIC

 

Infra/radio remote control transmitter/receiver with PIC
This is a general purpose remote control project with using programmable PIC microcontrollers. This project can be used with infrared (RF) or radio (RF) media. If you are not familiar with microcontroller programming, you can use fixed encoder and decoder integrated circuits instead. Well-known such IC-s are Holtek HT-12D, HT-12E and Motorola MC145026, MC145027, MC145028.[more]

Posted in : PIC projects | RF projects | Remote control projects

An Antenna Rotator Controller

 

An Antenna Rotator Controller
The controller consists of a small circuit board which fits inside the rotator control box .With this unit the rotator gains automatic heading seeking, computer control, and even heading control by clicking on a map or selecting a country prefix.The controller could also form the basis of a self-contained replacement controller, for rotators with faulty or missing controllers. [more]


Posted in : RF projects

Tracking Transmitter XFM1

 

Tracking Transmitter XFM1
This is a Crystal controlled 147.460 MHz FM transmitter called XFM1.The XFM1 designed for model rockets 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. [more]

Posted in : RF projects

« Previous Page — Next Page »