Results tagged #Vhf in Circuits
VHF-UHF Linear Amplifier Circuit
This project is a construction of a VHF-UHF linear amplifier that can work at frequencies from 47MHz to 740MHz. It can be used as a final ou...
VHF super-regenerative receiver circuit
The picture shows the JFET VHF band of super-regenerative receiver circuit, where high discharge tube V1, V2 for the super-regenerative dete...
VHF radio receiver
The figure below shows a schematic diagram of a simple FM receiver. This receiver made with four transistors. The signal from the antenna th...
Simple VHF FM radio
The RF stage of the receiver is based on a transistor VT1, this stage works as a mixer and a local oscillator and it works as a synchronous ...
SR 6m/2m Converter
This kit, designed by Jan G0BBL and implemented and distributed by Tony KB9YIG, is a plug-in board for the Softrock Lite + Xtall RX V9. 0 wh...
Ensemble II VHF RX opamp
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Ensemble II VHF RX qsd
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Ensemble II VHF RX rf
This stage begins at the VHF antenna. The incoming VHF RF signal is preamplified and filtered and presented as the "RF" signal to the ADE + ...
Ensemble II VHF RX div
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Ensemble II VHF RX
Replacing the front-end with a circuit that down-converts VHF signals in the 2m, 4m or 6m bands to HF signals that can be received in the RX...
VHF Stability
The intelligent discussion of VHF systems requires a feel for VHF systems, and how VHF energy moves through a system. At VHF, wavelength is ...
Bush VHF90
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The VHF antenna switch
Finally I have found a use for a bunch of DIP-style RF relays I acquired in a grab-bag from a discount electronics shop some time ago. These...
VHF Overtone Oscillator
VHF overtone crystals can be difficult to use due to the many frequencies at which the crystal is perfectly happy to oscillate. A typical 10...
VHF-HF TRANSVERTER
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VHF-HF TRANSVERTER
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VHF FM Transmitter MAX2606
If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers t...
VHF FM Transmitter MAX2606
If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers t...
Camera VHF Video Transmitter
This is a simple video transmitter that can transmit as far as 50 meters. This video transmitter can be used with the camera or other video ...
Camera VHF Video Transmitter
This is a simple video transmitter that can transmit as far as 50 meters. This video transmitter can be used with the camera or other video ...
VHF 0.5 W TV Transmitter
The TV transmitter introduced here can send audio and video signals of satellite television receivers, VCDs and video recorders in open circ...
VHF 0.5 W TV Transmitter
The TV transmitter introduced here can send audio and video signals of satellite television receivers, VCDs and video recorders in open circ...
VHF/UHF Prescaler
The recommended Prescaler is ridiculously simple. It consists of just one IC, a TV tuner prescaler, the Philips SAB6456A, which can divide b...
VHF/UHF Prescaler
The recommended Prescaler is ridiculously simple. It consists of just one IC, a TV tuner prescaler, the Philips SAB6456A, which can divide b...
VHF MODULATOR circuit
Developed as interface between General Instruments AY-3-8500-1 TV game chip and antenna terminal of TV set. Adjust C1 to frequency of unused...
VHF MODULATOR circuit
Developed as interface between General Instruments AY-3-8500-1 TV game chip and antenna terminal of TV set. Adjust C1 to frequency of unused...
VHF Engineering
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VHF Engineering
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GE/MACOM MASTR-III VHF Station
This article provides conversion instructions for radio model # GE/MACOM MASTR-III Group 2 (150. 8-174 MHz) Repeater or Base, Combination Nu...
GE/MACOM MASTR-III VHF Station
This article provides conversion instructions for radio model # GE/MACOM MASTR-III Group 2 (150. 8-174 MHz) Repeater or Base, Combination Nu...
VHF Beacon
You can cut away the 555 timer oscillator part and add your favorite microphone modulating circuit to transmit voice over to your tv set wit...
VHF Beam
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VHF FM Crstal Set Radios
Phase-sensitive detectors usually take the difference between an input FM signal and the same signal after it has passed through a resonant ...
VHF-FM-supplement.asp
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vest pocket vhf fm test generator
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Amateur Radio circuits
For the shorter wavelength VHF and UHF bands it`s more practical to construct more complex antennas such as a single band Slim Jim or Yagis;...
VHF Twist-Shift Keying Rotation-Shift Keying Orthogonal BPSK Twist Modulation Motorola SyntorX
The material in this section shows how we built the Twist-Shift system for VHF using commonly available (and cheap) surplus land mobile VHF ...
vhf transmitter 5 pin input jack wiring
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Single-Chip VHF RF Preamp
Here is a high performance RF amplifier for the entire VHF broadcast and PMR band (100-175 MHz) which can be successfully built without any ...
VHF/UHF TV TRANSMITTER PLL
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2SC1946A 30 Watt VHF Amplifier
The 30 watt amplifier schematic shown below provides an appropriate power boost with an input of 4 watt up to 6 watts. The circuit is design...
VHF Audio Video Transmitter
The circuit presented here is a simple audio/video transmitter with a range of 3 to 5 metres. The A/V signal source for the circuit may be a...
Booster for Cable Radio
With the aid of this circuit it is possible to listen, using a portable VHF FM radio, to listen to stations that transmit only your local ca...
VHF FM Antenna Booster Circuit
Together with a good directional antenna this high performance two-stage antenna amplifier for the VHF FM broadcast band will enable you to ...
MAX2606 VHF FM Transmitter
To be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers the range of ...
VHF to AM Converter Circuit
There are many people who want to listen whats going on in VHF 108 - 132 MHz. This vhf am converter converts a band between 106 and 150 MHz,...
VHF UHF Low-Noise amplifiers using MAX2664 MAX2665
These devices incorporate a broadband LNA with an integrated bypass switch. The MAX2664 covers the UHF frequency range from 470MHz to 860MHz...
VHF antenna amplifier circuit diagram
This RF antenna amplifier can be used for high frequency and VHF band ( for radio and TV) and will provide a 22 dB gain. This RF antenna amp...
Thunderstorm Predictor
Sure, listening to VHF FM has great advantages over MW/LW AM from the old days now we have bright stereo free from interference, fading and ...
VHF Amplifier with 30 Watts Power
The circuit was designed for the purpose of increasing an input signal of 4 Watts to 6 Watts operating on the VHF radio frequency band speci...