9 band.

9 band.

Pages: 1 2 [next]

• 160m inverted L by W6SDO - A 160 meter antenna with a base loading coil used to tune the two lower frequency segments of the band.
  [ Hits: 1829 | Votes: 3 | Rating: 7.33 ]

• Directional Helical Antenna - This antenna is intended for the 20-meter Band. There are two Voltage Fed Helical Dipoles, made with 2 slinky that fed with phase shift in 90 degree
  [ Hits: 1087 | Votes: 1 | Rating: 8 ]

• 3 element Yagi Antenna for 14 MHz  ^updated - An homebrew project for a 3 elements yagi monoband antenna for the 20 meters by 9M2MSO
  [ Hits: 3466 | Votes: 15 | Rating: 4.74 ]

• 40M Bazooka antenna - Hombrewing a bazooka antenna for 40 meters band, the article include also with plans for 20m and 160m band.
  [ Hits: 4794 | Votes: 43 | Rating: 5.64 ]

• The HB9CV - a two element 6m-beam - A dual driven antenna for the 6 meters band.
  [ Hits: 2409 | Votes: 4 | Rating: 6.25 ]

• Homemade WARC Dipole - Here you can find all dimensions to make your own three band dipole for 30m 17m 12m. ON4AFU describe here a rigid dipole with dimensions and picture.
  [ Hits: 1048 | Votes: 1 | Rating: 1 ]

• EH antenna for 40 Meter - A project of a small antenna, just 50 cm for the 7 MHz band. An EH Antenna plan for the 40 meters band
  [ Hits: 1032 | Votes: 2 | Rating: 1 ]

• DM9EEs info site on FCP - folded counter poise (Radial) - No space for 120 ground radials, nor 4 elevated radials ? Give the FCP a try. Itcan be your solution to get on topband. Or even build a 4 square on a city lot.
  [ Hits: 523 | Votes: 1 | Rating: 9 ]

• G5RV Antenna Homebrew - Homebrew G5RV a simple multiband antenna. This article shows detailed pictures of a G5RV home made antenna, including antenna size and dimensions by 9M2ZAK
  [ Hits: 1587 | Votes: 4 | Rating: 7.25 ]

• Vertical antenna for Vacation - Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band. Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
  [ Hits: 5037 | Votes: 4 | Rating: 8 ]

• Broadband receiving antenna matching - This article addresses the subject of obtaining the best signal transfer from an antenna to the typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave (500 - 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.
  [ Hits: 6689 | Votes: 4 | Rating: 6 ]

• SG Laboratory Ltd - Transverter for 13 cm 23 cmd and 33 cmd band. 23 cm RF power amplifier, RF power amplifier for 2.4 GHz for the QO-100 satellite. Popular for the 1296 MHz transverter
  [ Hits: 277 | Votes: 0 | Rating: 0 ]

• NPR New Packet Radio - IP over 430 MHz - NPR (New Packet Radio) is a custom amateur radio digital protocol, designed by F4HDK to transport bidirectional IP trafic over radio links on the 70cm band. This IP protocol is optimized for point-to-multipoint topology, with the help of managed-TDMA. Bitrate is up to 500kbps. Home Made modem has a built-in ethernet port to connect to PC. To boost power a DMR amplifier is required to reach 20W. This project is an extension of HSMM - Hamnet - AREDN networks
  [ Hits: 151 | Votes: 0 | Rating: 0 ]
• New Paket Radio: Hamnet over 70cm by EA4GPZ - An introduction to NPR by Daniel Estevez. In this blog article Daniel EA4GPZ / M0HXM, introduce the new IP communication protocol over the 70 cm amateur radio band. Daniel is an experienced operator on IP on 430 MHz with CC1101 and Beaglebone black project and makes a good comparison of the two projects.
  [ Hits: 238 | Votes: 0 | Rating: 0 ]

• 49MHz Hobbyists Site - A website and email reflector for hobbyists in the unlicensed 49MHz low-power band.
  [ Hits: 1882 | Votes: 4 | Rating: 7.5 ]

• Yaesu FT-8900r Review - A review of the Yaesu FT-8900r 29/50/144/430 MHz FM Transceiver, providing 50 Watts of power output on the 29/50/144 MHz Amateur bands, and 35 Watts on the 430 MHz band.
  [ Hits: 245 | Votes: 1 | Rating: 7 ]

• HF power amplifier using GI7B - Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band.
  [ Hits: 4065 | Votes: 12 | Rating: 4.92 ]

• 137 kHz antenna preamplifier - A simple 137 kHz antenna preamplifier to make your FT-817 (and others) useable on 2200m band.
  [ Hits: 1184 | Votes: 3 | Rating: 6.67 ]

• K9KLT Power Line QRN Killer - A power line noise eliminator designed to eliminate QRN expecially on 40 meters band.
  [ Hits: 1364 | Votes: 1 | Rating: 10 ]

• Micro24 Cigarette Pack SSB QRP Transceiver for 20m - The Micro24 is a ultra compact microsize QRP SSB transceiver for the 20 meters amateur radio band. This transceiver is so small that it fits into one hand.
  [ Hits: 1162 | Votes: 7 | Rating: 7.71 ]

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