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506 cool links - Pages: 1 2 3 4 5 6 7 8 9 10 11 [>>]
10 Meters EH Antenna
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- PDF file with plans to build an eh antenna for 10 meters band, by lloyd butler VK5BR
2 element Quad antenna
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- Detailed instructions about a 2 elem. quad antenna for 10,12 and 15 meters band, by iz7ath, Talino
3 Element Antenna for 28 Mhz
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- The DF9CY three-element antenna for 28 MHz by Christoph Petermann DF9CY
40 thru 10 Meter Zepp Antenna
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- A modified 20 meter double zepp wire Operating Bands: 40 thru 10 meters (with tuner), basic construction and performance information.
160 meter linear loaded voltage feed T
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- 160 meter linear loaded voltage fed T antenna
20m delta loop
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- This antenna is fed for vertical polarisation, to give a low angle of radiation for DX and also a nearly omni-directional radiation pattern
Home : Antennas : 20M : 20 meter Yagi antennas
2-Element-Yagis for HF
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- 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.
3 Element Yagis Antennas for HF
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- All these plans use the DK7ZB match
2 Elements HB9CV
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- 2 meters band HB9CV antenna
2 meter Quagi 97
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- Dimensions and plan to build a W5UN EME quagi antenna
43 element Yagi for 2 mt.
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- 43 Element Yagi for 144.200 MHz by VE7BQH
40m/80m Portable antenna
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- Portable antenna for 40 and 80 meter
3 Element Yagi for Six meter band
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- Plans for 3 elements beam antenna and gamma matches
50 MHz Antennas by DF9CY (4 & 6 Element)
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- Two well performing 50 MHz antennas designed with W7EL EZNEC along to many other antenna projects and related articles
50 Mhz Dipole
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- This article describes a simple but effective wide bandwidth six metre antenna
50MHz J-Pole Antenna
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- Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.
6 meters Delta Loop by KK5ID
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- The 6 Meter Band may be dead at times, but help bring it to life with Larry's rotatable loop project.
Home : Antennas : Baluns : 4 to 1 balun
4:1 balun for 160 to 10 meters
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- Articke By Clay Wynn
5/8 Collinear antenna
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- A 5/8 wave stacked j-pole antenna plan
Home : Antennas : Delta loop
2 x 5 delta loop
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- VHF horizontal stack 2 x 5 elements delta loop
40 Meter Parasitic Delta Loop
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- 40 Meter 2 element full size parasitic delta loop wire beam construction and switchable
"Halfer" End-Fed Halfwave Antenna
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- End-Fed Half-Wave Antenna for the 7 or 10 MHZ amateur bands intended to provide a very simple to erect yet effective portable QRP antenna.
6 meter omni halo
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- This halo is made with a true Gamma Section this time and is fashioned from aluminum
13 cm Helix Antenna
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- Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.
2.4Ghz Helix antenna
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- Concise instructions on making a broadband helical antenna for 2.4GHz use, such as: 802.11b wireless networking 2.4GHz video links.
144-430 portable j-pole antenna
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- A portable dual band j-pole antenna
2 Meter J-pole from 450-Ohm Ladder Line
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- Great first time J-pole project. Covers most of the basics. This small and thin design also makes it good for several stealth applications.
6 Meter J-Pole Antenna
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- Amateur radio project by W8CWE
160 meter full wave loop antenna
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- The antenna is a 10 - 160 meter horizontal loop fed with 450 ohm ladder line all the way into the ham shack to an Palstar AT1500BAL balanced line antenna tuner
6-Band Windom antenna
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- Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio (ham) bands
4 elements 50MHz Quagi
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- Total Boom Lenght is 3 m.
160/80m Coaxial Receiving Loop Antennas
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- Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.
5/8 Wave Vertical Antenna Calculator
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- Design your own 5/8 wave vertical antenna. A simple jscript calculator at Antenna Elmer.
14Km 802.11B link test
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- G7EYT, Carl - G6NLC and Neil - M1NCD sucessfully completed a 14Km range check with 802.11B equipment and home built antenna's.
2.4 Ghz double quad antenna
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- An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
2.4GHz Cubic Quad Antenna
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- The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz range for 802.11 wireless LANs.
2.4GHz Short Backfire Antenna
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- My short backfire antenna for 2.45ghz by carl rabe - g6nlc
43.33 Km LOS with USB WiFi stick
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- Simple USB 802.11b WiFi adapter with original antenna test by adam 9A4QV.
160 metre L antenna
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- by Greg Weinfurtner AEE BSS
40m Short Antenna
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- GM4JMU shortened dipole for 40 meters band
Home : Internet and Radio : Pictures
1000+ Antique Radio Pictures
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- 1000+ Antique radio pictures in alphabetical order.
Home : Operating Modes : Mobile : Bicycle
2 Meters Bicycle Antenna
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- 2 Meter Antenna for Bicycle Mobile Operation
Home : Software : Antenna analysis
4NEC2 antenna modeler
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- 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler.
Can be interfaced to HFwin32 propagation prediction software.
Home : Software : Morse Code Decoders
59+ CW
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- Freeware Win32 application can be used for sending CW signal to the transceiver over a COM port or simply listening to Morse code on the speaker. The application is very easy to configure and will allow you to you to add new Morse characters set speed, tone, dash, dot, PTT line delay and other parameters. It is also possible to set shortcuts for call, QTH, name, RST and ANY other QSO field.
Home : Software : Radio Control
RadioComm
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- RadioComm can be used to program your Icom radio's memory, or to create nice radio-frequency spectra (see above) or to interface your radio to a huge database of frequencies.
Home : Technical Reference : Amplifiers
11Meter Amps
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- This group is here to discuss linear amplifiers used on the 11 meter citizens band.
Home : Technical Reference : Amplifiers : HF Amplifiers
1.5 to 30 Mhz RF Amplifier
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- This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching.
11 KW Linear amplifier by I0JX
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- Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug
500 WATT PA by SM0VPO
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- 500W Power Amplifier by Harry Lythall - SM0VPO
Home : Technical Reference : Mic wiring
11 Most Popular MIC Wiring Diagrams
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- 11 most popular MIC wiring diagrams including AZDEN Alinco Icom Kenwood Yaesu Astatic Cobra Sadelta Turner microphens diagrams and pin-end views
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