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509 cool links - Pages: [<<] 1 2 3 4 5 6 7 8 9 10 11 [>>]
Home : Antennas
Home : Antennas : 15M
HF Copper Loop
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- A small transmitting loop antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR
Based on material originally published in Amateur Radio, 11 1991
Home : Antennas : Baluns
HF Home made Balun
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- A balun is a device that is used at the feedpoint of a balanced antenna when an unbalanced feedline is desired to feed the antenna. Balun is a contraction for BALanced to UNbalanced.
Home : Antennas : Baluns : 4 to 1 balun
Home : Antennas : Collinear
Home : Antennas : End-Fed
How to make an end-fed antenna work
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- Here is a sure fire way to make end-fed halfwave antennas fed with a 50 ohm coupler work - without long radials, grounds, chokes, voodoo.
Home : Antennas : G5RV
Home : Antennas : Helical
Home : Antennas : Mobile
HF mobile antenna
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- Build your mobile antenna which outperforms Hustler by 10db and ATAS-100 by 18db. From 80 to 10m.
Home Brew VHF UHF dual band antenna
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- Contructing precedure and tune up of a dual band mobile antenna. This antenna is just a 1/4 wavelength resonator for both UHF and VHF band. It provides no GAIN as compared to other multi-section design.
Home : Antennas : Multiband
Home : Antennas : Receiving
How to build a tuned loop antenna
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- How can you vastly improve your Medium Wave reception? its quite simple really, all you need is 120 foot of wire, a few lengths of timber and an old tuning capacitor with which you can build the answer to every DX'ers prayers, a tuned loop antenna.
Home : Antennas : Shortwave
Inverted L antenna
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- The ever-popular inverted L antnna, a fast to implement and setup shortwave antenna project by Arnie Coro C02KK
Home : Antennas : Traps
Home : Antennas : WiFi
How to build a tin can waveguide antenna
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- Looking for an inexpensive way to increase the range of your wireless network? A tin can waveguide antenna, or Cantenna, may be just the ticket. This design can be built for under $5 U.S. and reuses a food, juice, or other tin can.
Home : Antennas : Wire
Home : Ham Radio : Exams
Home : Internet and Radio : Online Receivers
Home : Manufacturers : Amplifiers
Home : Manufacturers : Antennas : VHF UHF Microwave
Home : Manufacturers : Towers and Accessories
Home : Operating Aids : Maps
Grid Square maps
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- Several grid square maps on the net, including world maps, regional maps and specific country grid square maps, collected by ve2pij
Home : Operating Modes : Stealth Amateur Radio
Home : Publications : Manuals
Home : Radio Equipment : HF Transceivers : Icom IC-706
Icom IC-706 Radio mods db
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- Info and mods for IC-706, IC-706 Expanded frequency IC706 - spare 0.3A, MARS/CAP Modification for ICOM IC-706, enables out-of-band transmit for 1.6 MHz to 54 MHz, ore sensitive transmit for 2 meter
IC-706 60 MHz to 200 MHz band pass filter, Icom IC-706 Extended RX mod, ICOM 706 MKII Extended transmit mod, Special on IC706mkII TX range expansion for IC-706MKIIG, Expand only mod for the IC-706MkII
Home : Shopping and Services : Scanner stores
Home : Software : Antenna analysis
HamCalc v1.3
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- By G4VWL, HamCalc is collection of calculators for radio amateurs: Antenna ERP calculations.
Attenuators. Audio Filter design.Coil Winding.
Decibels. Great Circles map and calculator HF Filters HF Traps Metric conversions OP Amps
QRA Locator to Latitude/Longitude (and back)
Radio Horizon calculator Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations
Home : Software : Audio Streaming
IP-Sound
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- IP-Sound is a Free application for audio exchange client to client over a TCP/IPv4 network (Lan/Internet).
The main purpose for the existence of IP-Sound is to provide low quality audio 8-16kHz, with low latency for use together with remote control software for "ham" radio amateur equipment.
IP-Sound is developed by SM5VXC.
Home : Software : DX Cluster
Ham Radio Deluxe v4
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- HRD v4 is a freeware windows multi function software, includes logbook, CAT Control software for Elecraft, Kenwood, ICOM, Ten-Tec and Yaesu radios, rotor controls, digital mode rtx, rotor control, dx cluster client and many more features by HB9DRV
Home : Software : Morse Code Training
Ham University
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- Ham University includes Morse Code lessons, graded exercises, and a game.
Windows program for helping you pass your FCC Exams, contains all the questions for all three FCC written exams. You can browse the questions, quiz yourself on your weak areas, or set yourself a mock exam.
Home : Software : Multimode
HamComm 3.1
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- DOS Freeware popular program for ham radio communications, supports reception and transmission of radio teletype RTTY, AMTOR ARQ/FEC, SITOR A/B, NAVTEX and Morse code (CW) signals. A decoder for SHIP and SYNOP reports from weather stations is also included. This program is discontinued and unsupported. Originally developped by Schroeder DL5YEC
Home : Software : Packet
HamScope
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- HamScope is a freeware windows multi-mode communications package for amateur radio that supports: PSK31 BPSK and QPSK RTTY ASCII MFSK16 PACKET CW. Support radio control interface for several ICOM, TenTec, Kenwood, and Yaesu transceivers. Compatible with DXbase LOGic 7 RYLogit TRX-Manager YPLOG. By KD5HIO Glen
Home : Software : Spectrum analyzers
HamAlyzer
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Priority listing
- HamAlyzer is a spectrum analyzer made just for hams, save plot images easily for emailing, monogramed with your call sign.
HamAlyzer looks no more supported, here 2.8 trial version available. Download hamalyzer
Home : Technical Reference : Amplifiers : HF Amplifiers
Home : Technical Reference : Coax Cables and Connectors
Idiot's guide to coaxial cable
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- A very beginner's guide to coax cables. Characteristics, detailed comparison of typical coaxial cables, commonly used connectors, and a few words about SWR.
Home : Technical Reference : HF Radios
Home : Technical Reference : Homebrew
HA8ET Technical & Homebrew pages
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Priority listing
- Technical Articles, Homebrew,Test & Measurements, (Returnloss Bridge 1,8 MHz...1300 MHz, 2m/70cm DIPLEXER...) Vacum Tube Databases, VHF-UHF-SHF Power amplifiers,HAM links, electronics links
Ham Radio Circuits
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- Circuits of SSB Transceiver, AM DSB Transmitter, Antennas, BFO, VFO, 807, FM Mike, Crystal filter and more.
Home : Technical Reference : QRP Projects
Home : Technical Reference : Receivers
Homebrew radio receiver
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- Detailed plans of my homebrew receiver. Frequency coverage is from below 300kHz to 30MHz. Pictures, schematics, board layouts, parts lists and more can be found here.
Home : Technical Reference : VHF Radios
Ham.dmz.ro
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- Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.
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