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Query: qsl.net
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Computes the Standing Wave Ratio, given the power readings on a line. -
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Supports both PSK31 and PSK63, sends and receives color thumbnail portraits by PSK63, displays 24 PSK63 channels simultaneously, and features semi-automatic mode selection between PSK63 and PSK31. Merely left-click on a PSK63 signal to copy, or right-click on a PSK31 signal to copy. -
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A VHF power amplifier made with two cheap RF transistors, 2N3924 as driver and a BFS22A for final stage, giving an unexpected output power of 7-8 watts maximum -
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LZ2US offers 3 types amplifiers for the serious VHF/UHF amateur. These amplifiers are very robust and in use by contest groups and EME stations all over the world. Every amplifier is custom made. -
A MRF141G 3-175MHz Broadband Power Amplifier DL4MEA 02/1998 -
10 GHz beacons list source internet , spots from DXCluster , hearing from 10GHz band by OK1JKT -
Club information, photos, utilities, links and repeater list. In Spanish -
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A vertical dipole for the 40 meters band made by using some buddipole parts and adding capacities on both ends by HB9MTN -
Detailed review of all the Hell software currently available for the PC -
By Guy, de ON6MU, At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used. -
A collection of extra Icons for the superb MixW programme. -
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Information on licensing abroad for radio amatuers by OH2MCN, Veikko Komppa -
Home made RF power amplifier for six meter band -
High gain, good pattern and acceptable bandwidth. These aims can be realized with a radiation-resistance of 25-35Ohms, because the 28-Ohm-feedpoint is very simple to match. -
Presents the amateur radio activities and interests of Kote, operating as 4L4KW. The page features a collection of external links relevant to the ham radio community, including references to other callsigns such as 4L1BR, 4L1W, 4L4MM, and 4L/ZL1RS, indicating potential connections or shared interests within the Georgian amateur radio scene. It also lists several well-known ham radio resources like QRZ.com, DXzone.com, and Contesting.com, suggesting an active engagement with DXing and contesting. The resource includes links to major amateur radio equipment manufacturers such as Icom, Yaesu, and Kenwood, which implies an interest in modern transceivers and station setup. The mention of DX-Summit and "fixed activity on Ham bands" further reinforces a focus on making contacts and participating in on-air operations. The page serves as a digital hub for 4L4KW's ham radio presence. -
Construction Details for 50MHz-Yagis in DK7ZB-Design -
glfer is a program for reception and transmission of QRSS/DFCW signals. It is composed of two main parts: the spectrogram window, where you can see the spectrum of the received signal vs. time the transmission functions, to emit cw characters at a slow but precisely controlled speed, using the QRSS (slow CW) or DFCW (Dual Frequency CW) modes -
Antenna tests on Alford 1.2 Ghz for ATV oprations in italian -
Qsl Information databse updated the 1st of the month. Over 130,000 managers and direct addresses -
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Some beginners guide to monitoring aircraft communications -
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A simple & effective antenna pre-amp for 10m. Band (28-29.7 MHz) -
Based on original G2BCX design this J-Pole antenna for the six meter band is made with a homemade ribbon cable. The antenna shown in this article includes a coaxial cable choke feed to remove RF currents from flowing on the outer of the cable. -
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Serving Tarrant, Parker, Wise counties, and city of Fort Worth, Azle, Springtown, Boyd, Weatherford, Saginaw -
An Eprom Eraser with UV-Ray for 27Cxx Eprom (and similar, common in TNC) with a timer -
Huge amount of relevant information you should know before building a tower -
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This program has been designed for packet communication with ISS (International Space Station), PCSat or 'compatible' satellites with ease... Ideal for any UI packet communication. -
Official Icom comparison chart for IC 756 PRO III, IC-7600, IC-7700 and IC-7800 -
A simple TRAP-dipole project for 20 and 40m bands includes EZNec simulations -
A triband VHF Yagi antenna for 6 m, 4 m and 2 m with one feed-point by DK7ZB -
Two types of multi-functional Home-brew 6/8Amps - 20 Ampere variable power supplies by ON6MU -
DK7ZB- Moxons with Aluminium Tubes, plans for moxon antenna for 6 10 12 15 meters -
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This free program displays the location of any locator on a map. It calaculates between two Maidenhead locators the distance (km and miles) azimuth longitude latitude Show the location, direction and distance as you move your mouse on a map! Graphical Locator Program, By ON6MU -
A super-fast PSK mode for RTTY Contesting, 100 wpm character transmission speed for contest exchanges and macro transmission versus RTTY at 60 wpm -
A light and portable magnetic loop antenna with improved bandwidth and performance by HB9MTN -
G3WZT design for a bi-polar 600W Linear Power Amplifier for the 6M band. -
A magnetic loop antenna using a 28\" bicycle rim for six meter band -
The Skeleton Slot Antenna Revisited by Bobby Brainwave, N3VGS PDF File. -
