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RF Radio Frequency
Receiver Circuits Page 5
RF Receivers:
#'s A - B
C - D E
- K L - Q
R - S T - U
V - Z
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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Medium Wave Active Antenna - This circuit is designed to amplify the input from
a telescopic whip antenna. The preamplifier is designed to cover the medium waveband from
about 550Khz to 1650Khz. The tuning voltage is supplieb via RV2, a 10k potentiometer
connected to the 12 Volt power supply.... [Circuit : David Sayles] |
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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Medium Wave DX Receiver - The photo opposite shows what you can do with a Lazy
Susan and a 16" Embroidery Hoop! This loop antennae work very well on the Medium Wave
band, providing good gain, directivity and noise rejection…. [Duncan from Wellington, New
Zealand] |
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MIMO Wireless LAN PHY Layer (RF) Operation & Measurement Application Note 1509 -
Application Note 1509 Agilent MIMO Wireless LAN PHY Layer [RF] Operation....only increases
on a logarithmic basis. The performance of future IC…Agilent Application Note....[App
Note] |
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Modern Converter - Here is my design for a modern receiving converter for
pre-war FM sets.... |
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Morse Code Beacon Keyer - This circuit stores a single morse code message as
bits in an EPROM chip, the message is sent to a relay which can key a CW transmitter. The
keyer can output either a one-shot message such as "CQ DX DE CALLSIGN", or a continuous
message. The continuous mode is useful for making beacons for low power (QRP) and slow
(QRSS) transmissions.... [Designed by G. Forrest Cook] |
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MRX 40 Mini Receiver - (Circuit design added 8/03) |
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Nostalgic Crystal Radio - ….... |
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Novel crystal set requires no antenna, earth - amateur radio construction
projects…. [from Peter Parker's website] |
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One-Transistor Amplifier/Detector - An amplifier may be added to boost the audio
level as shown below. The current consumption of this amplifier is quite low and a power
switch is not included. Disconnect the battery when the receiver is stored for long
periods….(added 04/05/06) |
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OpAmp Radio (Aaron Cake) - (electronic schematic / circuit added 04/03/02)
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Phase Shift Radio Direction Finder - (electronic schematic / circuit added 4/02)
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PLL Stereo FM Tuner - FM radio which uses PIC micro-computer PLL system (circuit
added 08/07/06) |
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Q Multiplying Loop Antenna - (electronic schematic / circuit added 4/02)
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Q-multiplier - Electroinic circuit…. [from Harry Lythall's website] |
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Q-Multiplying Loop Antenna - ….(electronic schematic added 03/08) |
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QRP Antenna Tuner - This circuit is for a QRP (low power) antenna tuner, a.k.a.
a transmatch, for use in the short wave amateur radio bands from 3-30 Mhz. It allows a
wide variety of antennas to be connected to a low power transmitter. When the circuit is
properly tuned, the maximum transmitter power will be delivered to the antenna. It is used
in conjunction with a standing wave ratio (SWR) meter. This is a fairly generic
antenna tuner circuit. [design by G. Forrest Cook] |
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RF Receivers: #'s
A - B C
- D E - K
L - Q R
- S T - U
V - Z |
