compact 4

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compact 4

40 links

Antennas : 15M
  • Zippiro antenna for 40 Meters - Very compact and high efficiency antenna ,very low radiation angle even at low height.
    [ Hits: 2112 | Votes: 3 | Rating: 5.67 ]
Antennas : 160M
  • Ultracompact 160 Meter Antenna - A compact antenna for 160 meters, suitable for hams tha want operate top band buh have a limited space
    [ Hits: 1367 | Votes: 1 | Rating: 3 ]
Antennas : 30M
  • The flower pot antenna - A portable dual-band antenna working principally on 10 meters but also close to the 30 meter band. It's compact, light, economical and doesn't need any radial.
    [ Hits: 13403 | Votes: 1 | Rating: 10 ]
Antennas : 40M : 40 meter Dipole Antennas Antennas : 6M : 6 meter Yagi Antennas
  • 4 el yagi for 50 Mhz - The EF0604S is a compact 4 elements yagi antenna plan for six meters band featuring 8.77 dBi gain and a front back gain of 17.89 dB. Article includes elements dimensions and spacing, along to pictures of some homebrewed examples.
    [ Hits: 3751 | Votes: 10 | Rating: 6.84 ]
Antennas : End-Fed
  • Endfed wire antenna tuner by KC8AON - A compact halfwave endfed wire antenna tuner that works 12 thru 40 meters with a halfwave wire for the band of interest attached
    [ Hits: 1849 | Votes: 5 | Rating: 10 ]
Antennas : Helical
  • 2.4 Ghz double quad antenna - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
    [ Hits: 2618 | Votes: 4 | Rating: 1 ]
Antennas : Indoor
  • RockLoop Antenna  pop - A Compact antenna for 10, 14 & 21 MHz Bands. A multiband portable and indoor antenna suitable for QRP operations based on an original idea by W9SCH that described this small loop in Sprat 60.
    [ Hits: 35610 | Votes: 21 | Rating: 7.42 ]
Antennas : Moxon
  • Cebik Moxon Rectangles - The Moxon Rectangle is growing in popularity as a compact 2-element array that approaches a full-size 2-element in gain but with a far superior front-to-back ratio and a direct match for the standard 50-Ohm coaxial cable.
    [ Hits: 3328 | Votes: 5 | Rating: 5 ]
Antennas : Multiband Antennas : Portable
  • HF portable magnetic loop - Here is a well documented plan of a 20m-10m compact magnetic loop antenna. Article includes lots of pictures and technical details published by KP4MD
    [ Hits: 1057 | Votes: 1 | Rating: 10 ]
Antennas : Receiving
  • Compact receiving loop antenna - A receiving loop antenna project suitable for 150-430 KHz reception by Gregg van der Sluys
    [ Hits: 3540 | Votes: 1 | Rating: 5 ]
Antennas : Satellite
  • Double Lazy H 435 MHz 10,8 dBd antenna - Drawings and pictures of compact antenna for 70cm band by LY2SS
    [ Hits: 2687 | Votes: 8 | Rating: 5.76 ]
  • Homebrew Arrow Satellite Antenna - The Arrow Antenna is a design classic: it combines light weight, compact design and functionality in a single package for operating FM dual band satellites such as AO-27, UO-14, SO-41 and SO-50
    [ Hits: 3423 | Votes: 6 | Rating: 6.67 ]
Antennas : VHF UHF
  • Compact and effective 2m 70cm antenna - Antenna was designed for SO-50 satellite operation but can be used for any VHF/UHF activity. It's a mix of a Moxon Antenna and a Yagi antenna. It has gains 4 dBd on 2m and 6.5 dBd on 70cm bands and it is fed via single 50 Ohm cable.
    [ Hits: 2576 | Votes: 1 | Rating: 10 ]
Antennas : WiFi
  • 2.4 Ghz double quad antenna  pop - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
    [ Hits: 27908 | Votes: 83 | Rating: 5.17 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • Yaesu FT-817 discussion group - Members discuss the operation of and modifications to this outstanding QRP rig that covers 160m 70cm with all modes. Site contains a large database of FT-817 FAQs and data files. Antennas, tuners, and power sources are also covered as related to this ultra-compact transceiver.
    [ Hits: 12759 | Votes: 93 | Rating: 6.85 ]
Software : Audio Recorders
  • QuickRecord - QuickRecord is a trialware compact application for recording and playing sound on a Microsoft Windows PC. It works on Windows 95, 98, Me, NT4, 2000, and XP. Recording and playing back directly to and from disk files, QuickRecord maintains the simplicity of the standard Windows Sound Recorder applet but without the restrictions.
    [ Hits: 3657 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers
  • A low cost 600 watt ultra-linear amplifier  pop - This compact little amplifier is the brain-child of Pat Murdoch, ZL1AXB, in Auckland, New Zealand. It is only 11" wide, 4" high, and 9" deep. Operates for 40, 20, 17, 15, 12, and 10m
    [ Hits: 32110 | Votes: 27 | Rating: 6.67 ]
Technical Reference : Amplifiers : VHF Amplifiers

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