RF (Radio
Frequency) Transmitter
Circuits, Page 2
RF (Radio Frequency) Transmitter:
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Last Updated on:
Thursday, December 07, 2017 02:04 PM |
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Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
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Antenna Switch for Dicke Switching Receivers - This is a Radio Astronomy
Project… [from Radio-Sky Publishing's web site] |
Antennas for Ham Transmitters - Describes how to construct various type of
antenna for Ham Radio Transmitters. |
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Assorted RF circuits - several circuits here, spend some time and view each of
them |
ATV Repeater Controllers - (electronic schematic / circuit added 4/02)
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Automatic message sender for CB - (circuit added 6/07) |
Automatic Repeater - Circuit designed by Miroslav Adzic. This circuit will
be of interest to radio amateur and anyone possessing two radios, (one of which must
be able to transmit i.e. a transceiver). It is a self powered (audio derived) repeater
circuit for receiving a signal and re-transmitting it via or radio. (added
10/05) |
Basic RF Oscillator #1 - This basic circuit is eash to build and the components
are not critical. Most of them can be found in your junk parts box…. [Tony van
Roon's circuit] |
Basic VOX Circuit - A recent look at some of the budget priced HF transceivers
revealed that they were missing a VOX. Although most of these budget priced transceivers
performed admirably, it would certainly be nice to have VOX capability. Figure 1 is a
basic VOX circuit which will perform very well once the VOX level is set correctly.
This circuit is low cost and all parts can be found at your local Radio Shack store....
[Radio Amateur Society of Norwich] |
Bob Sickel's Antenna Switch for Dicke Switching Receivers - This is a Radio
Astronomy Project… [from Radio-Sky Publishing's web site] |
Building a Simple LF Exciter - (Circuit design added 8/03) |
Building an RF Remote Control System - .... |
Car anti theft wireless alarm - This FM radio-controlled antift alarm can be
used with any vehicle having 6to 12-volt DC supply system. The mini VHF, FM transmitter is
fitted in vehicle at night when it is parked in car porch or car park. The
receiver unit with CXA1019, a single IC-based FM radio module, which is freely available
in market at reasonable rate, is kept inside. Receiver is.... [Radioland.nt.au] |
CB Transmitter - For the regulation it needs a voltmeter (with needle better)
and charge 50W/5W. Connect charge 50W in the place of aerial, with the voltmeter in the
exit voltmeter. Be supplied the transmitter with + 12V. It will be supposed we have
consumption between 0,7-1A. With a screwdriver we regulate the core of inductor L1/L2 and
later the variable C6 until we see the biggest tendency. We connect the microphone and
speaking we observe the clue in the multimeter. If all have become right will be supposed
the tendency, speaking, to go up roughly 30-35%. |
Ceramic Filter BFO - Receive SSB and CW transmissions on your BC receiver.
Simple BFO is build around 455 KHz Ceramic Filter. |
Cheap Log Periodic Dipole Array - This is a Radio Astronomy Project… [from
Radio-Sky Publishing's web site] |
Coilless FM transmitter! - .... |
Combination-Controlled fully customizable RF remote Control - (electronic
circuit added 09/05) |
Compact 20 14 MHz Direct Conversion Receiver - amateur radio construction
projects…. [from Peter Parker's website] |
Crystal radio - Schematic only, no circuit description |
Crystal radio - (circuit added 6/07) |
Easy 2 Meter Transmitter - This project is a simple transmitter using only one
crystal and will cover 145.00 to 146.00 MHz. The crystal is a 44.9333 MHz crystal for
145.500 receive, as used in the Trio (Kenwood) 2200, PYE, Motorola, Tait equipment, to
name but four. The frequency of the crystal is not critical as almost any other Xtal for
the 2-meter band will function.... [from Harry Lythall's website] |
Filter simplifies software defined radio - 3-Dec-07 Issue of EDN A Linear
Technology LTC1992 filter replaces four op amps in the signal chain of a software-defined
radio.... [Design Idea by John Wendler and Ray Tremblay, Tyco Electronics, M/A-Com
Wireless Systems, Lowell, MA] |
Four Transistor Tracking Transmitter - Schematic and parts list only, no circuit
description included…. [Tony van Roon's circuit] |
Four-way remote control uses series transmission 01/18/01 EDN-Design Ideas....A
simultaneous fourway remote-control system adheres to size, cost, and
reduced-complexity constraints and uses a series transmission to drive
parallel loads (Figure 1). You can use….PDF has several circuits, scroll down…. [Design
Idea by JM Terrade, Clermont-Ferrand, France] |
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RF (Radio Frequency) Transmitter:
#'s A
- F E - O
P - Z |