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353 links - and 7 categories
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Antennas : 2M- A 144 MHz turnstile antenna
- Omnidirectional and horizontally polarized VHF antenna
[ Hits: 1297 | Votes: 4 | Rating: 5 ]
- K9AY terminated loops for 75m
- It is very compact, low noise and directive with an impressive 20 to 25 dB front to back
[ Hits: 363 | Votes: 0 | Rating: 0 ]
- 144 MHz Halo Antenna
- This halo antenna was built to have an omnidirectional coverage while working in VHF contests.
[ Hits: 3017 | Votes: 6 | Rating: 5 ]
- Understanding the Hexbeam Antenna
- The Hexbeam is a great little antenna! It should be high on your list of options if you want a design that can be multi-banded, exhibits useful gain and directivity, is very lightweight, has a small turning radius, and which lends itself readily to Do It Yourself construction.
[ Hits: 505 | Votes: 4 | Rating: 8 ]
- Dish antenna
- Dish antenna and its theory and design for high performance applications such as satellite transmission and reception as well as microwave links.
Parabolic Reflector Antenna: Dish Antenna
The parabolic reflector antenna which is often called the dish antenna provides an antenna solution applicable for VHF and above where high gain and directivity are needed for all type of radio communications and radio reception.
[ Hits: 1026 | Votes: 0 | Rating: 0 ]
- Discone antenna
- About the basics of what is a discone antenna for wide band or bandwidth omnidirectional applications
[ Hits: 923 | Votes: 1 | Rating: 2 ]
- Cookie Cantenna Wi-Fi
- Make a cheap, portable, high performance (15-18 db) directional antenna out of commonly available parts that can be purchased in most grocery and hardware stores.
[ Hits: 6565 | Votes: 5 | Rating: 7.6 ]
- 2-El Portable Yagi for 10-20 mt
- This Yagi has a constant element-distance of 1,50 m. You must only correct the lengths of the elements for QSY, see table down. For the bands 10 m and 12 m the Yagi is working as a reflector-radiator-Yagi, for 15 m and 17 m as a beam with radiator and director.
[ Hits: 3189 | Votes: 5 | Rating: 5.2 ]
- Kansas Repeaters
- Kansas Repeaters directory
[ Hits: 224 | Votes: 2 | Rating: 1.5 ]
- ATV Directory
- The amateur television directory
[ Hits: 325 | Votes: 0 | Rating: 0 ]
- N6QAB Radio Direction Finding Web Site
- Samples and documentation on RDF setups
[ Hits: 325 | Votes: 0 | Rating: 0 ]
- Radio Direction Finding
- The Utah Amateur Radio Club - Radio Direction-Finding RDF
[ Hits: 428 | Votes: 0 | Rating: 0 ]
- HSMM Long Range WiFi
- High Speed Multimedia Radio Introduction by ARRL Working Group Chairman. Report of the High Speed Multimedia (HSMM) Working Group ARRL Board of Directors 2006 Annual Meeting January 22, 2004
[ Hits: 670 | Votes: 1 | Rating: 10 ]
- CAT System on MIC socket for Yaesu FT-897 FT-857
- How to redirect the CAT to the MIC socket on the Yaesu FT-897/857
[ Hits: 2711 | Votes: 8 | Rating: 6.62 ]
- PocketPacket Mac OS
- PocketPacket started as an APRS client for iPhone/iPod Touch/iPad devices, but is also available for the Mac desktop or laptop. PocketPacket incorporates a software-based TNC, allowing you to directly capture and visualize, or encode and transmit 1200 baud packets (AFSK modulation) using a VHF radio transceiver.
[ Hits: 1099 | Votes: 2 | Rating: 7.5 ]
- Omnidirectionnal antenna for the 23 cm band
- Building an omnidirectionnal antenna for the 23 cm band
[ Hits: 480 | Votes: 0 | Rating: 0 ]
- The express-pizza antenna
- Build a directional antenna for the 1.2 GHz band, in 15 minutes
[ Hits: 539 | Votes: 0 | Rating: 0 ]
- A Homebrew Antenna used for RFI Direction Finding
- How to homemade antenna to be used with a handheld on the aircraft band to locate noise sources
[ Hits: 484 | Votes: 3 | Rating: 7.67 ]
- IN3 DC-RX
- One-Cubic-Inch Direct-Conversion Receiver
[ Hits: 396 | Votes: 0 | Rating: 0 ]
- A Guide to Spectrum Analyzers
- What you really need to know about spectrum analyzers
[ Hits: 485 | Votes: 0 | Rating: 0 ]
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