multi

601 links - and 6 categories

Invisible DX antenna for the low bands - Article by DK5WL describes a multi-band DX antenna for the 160m-40m amateur radio bands with low visibility but great performance for long distance communication.
[ Hits: 7009 | Votes: 8 | Rating: 6 ]

Multidipole Antenna - This antenna is a group o dipoles, is a multiband and each dipole works on single band.
[ Hits: 2480 | Votes: 1 | Rating: 1 ]

Another vertical antenna for 30, 40 and 80 meters - This article is to describe a multi band DX-dedicated antenna offering a minimum of compromises (such as lossy traps), for the hams not having any high-support
[ Hits: 4377 | Votes: 4 | Rating: 3.5 ]
ON3JT vertical multiband hf antenna - A simple and low cost multiband vertical hf antenna covering 5 bands (20m-10m) from an old CB antenna
[ Hits: 4152 | Votes: 2 | Rating: 6.5 ]

Orginal multiband antenna - A project of a vertical and wires that generate a multiband antenna for 28 14 10 and 7 Mhz in french
[ Hits: 1876 | Votes: 0 | Rating: 0 ]
Multiband HF Vertfical Antenna - A vertical antenna that can cover HF bands using an UN UN and a fishing pole, usage of tuner is requested.
[ Hits: 1692 | Votes: 1 | Rating: 10 ]

W3DZZ multiband dipole - The multi-band trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters
[ Hits: 10473 | Votes: 20 | Rating: 6.9 ]

Windom antenna by PU1LHP - Project of a windom multiband antenna for 10 to 80 meters in portuguese
[ Hits: 3375 | Votes: 13 | Rating: 6.69 ]

Multi Band Wire HF Antennas - Notes on multi band HF antennas by G8JNJ
[ Hits: 1065 | Votes: 0 | Rating: 0 ]
Homebrew a W3DZZ antenna - Build your own multiband W3DZZ antenna resonating on 80 40 20 15 and 10 meters band
[ Hits: 20883 | Votes: 25 | Rating: 5.69 ]

ZS6DN_3 - A view of the NCDXF Multiband beacon and a cluster of stacked yagi antennas.
[ Hits: 434 | Votes: 0 | Rating: 0 ]

ZL7T - 2009 Chatham Island, New Zealand dx pedition A multinational team of nine ZL DXers is active from Chatham Island in the South Pacific
[ Hits: 280 | Votes: 0 | Rating: 0 ]

WebSDR on 20m, 40m and 80m ^pop - On this page you can listen to and control a short-wave receiver located at the amateur radio club ETGD at the University of Twente. In contrast to other web-controlled receivers, this receiver can be tuned by multiple users simultaneously, thanks to the use of Software-Defined Radio. Provided by PI4THT
[ Hits: 45729 | Votes: 523 | Rating: 7.25 ]

Outbacker antennas - Outbacker mobile and portable antenna systems are slim line, highly efficient, single whip multi bond antennas for vehicular and limited space portable applications.
[ Hits: 2233 | Votes: 0 | Rating: 0 ]

FT-897 857 817 Cable - Multifunctional interface for Yaesu FT-8x7 Series Transceivers
[ Hits: 5988 | Votes: 5 | Rating: 3.6 ]

MetricTest - New and used test equipment, oscilloscope, spectrum analyzers, multimeters, signal generators, power supplies, network and signal analyzers and more
[ Hits: 673 | Votes: 0 | Rating: 0 ]

Spectrum Analyzer Real-time FFT - Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.
[ Hits: 11316 | Votes: 9 | Rating: 7.77 ]

What's a diplexer? - It's a network that splits a signal to two or more loads, dependent on frequency. It is the simplest form of a multiplexer, which can split a signal into many different signal bands.
[ Hits: 1731 | Votes: 0 | Rating: 0 ]

Multi-functional Power Supplies - Two types of multi-functional Home-brew 6/8Amps - 20 Ampere variable power supplies by ON6MU
[ Hits: 1765 | Votes: 3 | Rating: 8.67 ]