Antenna arraysHigh frequencyDipole antennasResonanceBandwidthGainElectrical impedanceAn experimental analysis in the 2 MHz frequency range is performed on a multiband HF antenna which contains a two, three, or four dipole array. The antenna design equations and bandwidths are determined. The effects of...
Mobile Antennas 57 CB Radio Antennas 22 6m/4m Antennas 31 Multiband 191 Supported Bands Availability Design of antenna Brand Price OK FAQ What antenna length do I need for which frequency? The required antenna length for a specific frequency in amateur radio depends on the wavelength...
作者: A Phil Salas 摘要: Tired of dragging that bulky old antenna tuner along on your vacation jaunts? Spare your suitcase and your pocketbook because this simple multiband wire antenna will get you on the air in a jiffy—with no extra gear required. 年份: 2000 收藏...
high power multiband vertical HF mobile antenna heavy duty trimag mount 7-50mhz omni antenna $44.00 - $50.00 Min. order: 10 pieces outdoor UHF aluminum alloy base station cuttable antenna high gain CP22E antenna 400M 470MHz portable $18.00 - $23.00 Min. order: 10 pieces UHF446M 3 elemen...
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Operating Experience My HF station uses a wire antenna and manual antenna tuner for multiband opera- tion. I set the IC-7200 output to 20 W during adjustment, and the radio didn't seem to be disturbed by the momentary high SWR my antenna presents on some bands. I began operating using ...
performance and reduce operating expenses via comprehensive set of products and solutions. Topwave has more than 10 years experience to export goods to all over the world, the RF passive devices like power splitter, coupler, filter, multiband combiner etc, wh...
The present invention relates to an HF UHF multiband RFID tag antenna comprising: an UHF tag antenna (10), and an HF tag antenna (20). The UHF tag antenna (10) includes: a left side antenna pole (11); a left side meander line (12) which is connected to the left side antenna pole...
PURPOSE: A method and an apparatus for receiving a multi-band RF(Radio Frequency) in a mobile communication system are provided to considerably reduce the number of RF filters and local oscillators by using a wideband BPF(Band Pass Filter) and an LNA(Low Noise Amplifier). CONSTITUTION: An ...
A multiband wire antenna for use at HFNo AbstractAustin, B. A.COLLOQUIUM DIGEST- IEE