Circuits & Schematics Radio - 3
Subsection: "Radio"
Including:| Antennas Morse |
Search results: 43 Output: 21-30
- Korkut Yegin, Turkey EDN Engineers often perceive RF-low-noise-amplifier design as a difficult task. Obtaining a low-noise figure with high stable gain can be challenging even intimidating. However, with the recent evolution of GaAs ...15-10-2013
- Jefferay Lawton, Microchip Technology Varactor (or “varicap”) diodes are used primarily in radio-frequency (RF) circuits to provide a capacitance that can be varied by changing the applied voltage. These types of diodes often are used ...29-02-2012
- IC1: MAX2606 L1: 390nH Voltage Supply: 3 - 5V Frequency: 88 - 108MHz A simple FM transmitter links your home-entertainment system to a portable radio that can be carried around the house and into the back yard. For example, you can play music on ...15-11-2011
- Viswanathan Prakash Description The power output of many transmitter circuits are very low because no power amplifier stages are incorporated. The transmitter circuit described here has an extra RF power amplifier stage, after the oscillator stage, ...07-10-2010
- The RF oscillator using the inverter U1B and 10.7Mhz ceramic filter is driving the parallel combination of U1D to U1F through U1C.Since these inverters are in parallel the output impedance will be low so that it can directly drive an aerial of ...09-09-2010
- Description. With a matching antenna, the FM transmitter circuit shown here can transmit signals up to a range of 2 kilo meters. The transistor Q1 and Q2 forms a classic high sensitive preamplifier stage. The audio signal to be transmitted is ...19-07-2010
- If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers the range of 89.5 to 108 MHz but building such an oscillator using discrete components is not that easy. ...26-04-2010
- Schematic: Reversed PCB pattern: BOM: Schematic Reference Value Description Package Capacitors C1 1 µF electrolytic, 10%, 16V SMT or leaded C2, C3 1000 pF ceramic, X7R, 50V 0603 SMT C4 22 pF Johanson ceramic 5%, 100V 0504 SMT C5 3.3 pF ...20-04-2010
- This amplifier circuit is used to amplify TV signals in UHF range. It uses a low-noise transistor and gives 10 to 15 dB amplification in the frequency range from 400 MHz to 850 MHz. The transistor must be shielded from the input components and in ...09-04-2010
- Dinesh Gaijar Project Details: RF Measurement has been an expensive work so far the cost f measuring instruments are concerned. Although, the other project, PM2, is hot favorite among radio amateurs for RF Measurement, I wanted something smaller ...23-02-2010
