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Antennas : 10M
A 5 elements Vee log-yagi for 10m
- 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals
80M Vertical antenna with capacitance hat
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- Simple wire antenna cheap to make, using readily available materials, Low angle radiation, with rejection of high angle signals Wide bandwidth, with resonance at the 80M DX window (3.790-3.800 MHz); and Maximum height is 40 feet
80/75 Meter 4-Square Array
- This array has been in use since 1989. The SWR from 3.5 to 3.9 is below 1.5:1. The F/R of the array is 20dB average and with some signals even better.
Build An LF Antenna Analyzer
- A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
The K6STI Receiving Loop
- This relatively unknown antenna does an amazing job pulling weak low band signals out of man-made noise backgrounds
Recording of DX and other signals on 160 meters
- Topband and DX recordings and sound files on 160 meters band
Commins Onan
- Diesel Generators, Portable Generators, RV generators for motorhomes and trailers, Marine generators for boats and yachts.
NETCERTUS ampsequencer
- Advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY.
MicroSignals
- MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.
Misty Hollow Enterprises
- High Accuracy Marker Generators, DDS VFO for Drake and Collins radios
Mayberrys power equipment
- Outdoor power equipment, reseller of Honda Generators
SoftRock-40
- The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.
JT65
- JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.
Unusual HF Propagation Phenomena
- This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.
Yaesu VX-5R Review
- Strong signals review of Yaesu VX-5r
Strong signals - Yaesu VX-5R
- Yaesu vx-5r vhf/uhf transceiver specifications
Kitmondo: used test equipment
- Kitmondo is an online marketplace for used test equipment and measurement
equipment including analyzers, oscilloscopes and generators equipment.
Faros
- Windows shareware, automatic NCDXF beacon monitor for Radio Amateurs, SWL'ers and HF communication engineers. by Alex VE3NEA. It continuously monitors 18 NCDXF beacons on five bands, automatically detects the presence of the beacon signals, even in QRM and noise.
ComTekk Tone Generator
- ComTekk Software Tone generator for 2-way radio signaling. Use sound card to generate CTCSS, DTMF, tone remote, ANI and more. Synthesizer for simulation and testing of 2-way radio systems, repeaters, remote control, ANI, Paging and more
SignalGen
- SignalGen is a free (GPL) Linux (Xwindows GUI-based) utility that generates relatively low frequency signals with the use of a PC sound card. It is an entirely suitable replacement for a hardware signal generator if one doesn't require signals of a frequency higher than about 50 KHz. SignalGen creates any frequency between a fraction of one Hertz and an upper limit determined by your sound card's capabilities.
Choosing a headphone for 160m
- Weak Signal Audio 160m, choosing a headphone for weak signals reception
Tone Keyer For Morse Code Programs
- Key your transmitter from the tone output of a Morse Code generator program
Filters and Ferrites in EMC
- This article is about the characteristics and use of various filters and ferrites for solving amateur radio electromagnetic compatibility problems involving breakthrough of amateur signals into domestic equipment such as television sets, video recorders stereo sytems etc.
An Inexpensive PL Tone Encoder
- If your local repeater has got you singing the PL tone blues, then read on. For less than $10, an inexpensive PL tone generator can be constructed that will bring new life into that old non-PL rig.
Software-defined radio by Wikipedia
- According to wikipedia a software-defined radio is a radio communication system which uses software for modulation/demodulation of signals
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generator signals
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