Circuits & Schematics Radio: antennas antenna
Subsection: "Radio"
Including:| Antennas Morse |
Search results: 20 Output: 1-10
- .. is comparable to a 20 to 30 foot wire antenna. It is further more designed to be used on receivers that use untuned wire antennas, such as inexpensive units and car radios. Parts List: R1 = 1 M C1 = 470 pF C2 = 470 pF L1 = see text Q1 ...
.. magazine, July 1989 This simple little circuit can be used for AM, FM, and Shortwave(SW). On the shortwave band this active antenna is comparable to a 20 to 30 foot wire antenna. It is further more designed to be used on receivers that use ...10-02-2007
- .. a fixed antenna, with no option for adding one. I decided that I needed to fix that design flaw. Note: By adding various antennas to this device it may become possible to violate your local or federal regulations on output power. Be ...
.. been contemplating a few projects for some WRTSL54GS routers with OpenWrt,however I really need these to have a high gain antenna on the WRTSL54GS. As you may recall, this model has a fixed antenna, with no option for adding one. I ...15-04-2009
- .. any cable in between the reader and the antenna. The application note is intended to give a practical guide to design antennas and calculate the matching components for the CLRC663 Family. The user can follow the guideline to design ...
.. Note AN11019 July 2012 This document describes the principles of antenna tuning for the contactless reader IC CLRC663, MFRC630, MFRC631, SLRC610. A practical example is given to ...15-11-2013 - .. offer an excellent combination of size, gain and bandwidth, and can be mounted with normal SMT processes. Ceramic Chip Antennas are sensitive to their application environment, such as location of ground planes, the thickness of the ...
.. 2013 This Multilayer Chip Antenna series is designed for the applications covering ISM band, WiFi, Bluetooth Zigbee at 2.4 GHz,China Mobile ...06-12-2013 - .. and selectivity that is comparable to the best commercial handheld shortwave receivers using their built in whip antennas. It can pull in many North American shortwave without the need for an external antenna, as well as many ...
.. be used for receiving AM, CW, and SSB RF transmissions in the medium and shortwave bands without the need for an external antenna. Figure 1. This LM386 schematic is taken from a Texas Instruments datasheet. A close look at the ...18-06-2020 - .. as possible. For best results, the cable must be directly soldered to the PCB. The circuit should be installed near the antenna and housed in a water proofed case. The power supply for this uhf tv antenna amplifier is fed through the ...09-04-2010
- .. DAC integral nonlinearity (INL). RF modulation may also be caused by voltage induced from a noise source perhaps from an antenna in the system. The figure shows an LC-tank circuit portion of a voltage-controlled oscillator. This circuit ...29-02-2012
- .. feeding a dynamic earpiece through an impedance transformer. The power supply is a 9 Volt battery and the telescopic antenna contains a base loading coil. The switching did intimidate me a bit. While not a complex circuit and having ...26-03-2008
- .. is the range of BH1417 Stereo FM Transmitter? Range of the transmitter depends on many factors. a) Length and type of the antenna (the longer the better, copper will radiate radio waves better than aluminum) b) Supplied voltage (6V Max ...10-06-2009
- .. wire from the phone line goes to IN2. The green wire from OUT1 goes to the phone(s), as well as the red wire from OUT2. The antenna is a piece of thin (22 AWG) wire about 5 inches long. All capacitors are rated for 250V or greater. The ...16-12-2009
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