40 m

40 m

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• VK5BR 20-40 Metre EH Antennas  ^pop - How to construct a very small but efficient Antenna with PVC Plumbing tube and discarded fruit cans. - Just the thing to fit in a small space such as the house attic
  [ Hits: 32229 | Votes: 20 | Rating: 7.24 ]
• I4SBX EH Antennas - Three eh antenna plans for 20 40 meters bands.
  [ Hits: 7002 | Votes: 2 | Rating: 5.5 ]

• A Feasible Full Sized 40 Meter Beam - This project started as a result of renewed interest in 40 meters coupled with the desire for an antenna system that would be more effective than the simple dipole.
  [ Hits: 7238 | Votes: 1 | Rating: 1 ]
• G5RV Beam  ^pop - G5RV 40m Beam Antenna. Adding a 28 ft. piece of vertical wire to one end of a 102 ft. center-fed dipole turns it into a 40m beam with a very wide beamwidth
  [ Hits: 26919 | Votes: 7 | Rating: 9 ]

• ZZ Wave Net - ZZ Wave Net is a 40 & 80 meter full wave loop designed to fit on a city lot. ZZ Antenna is a folded dipole bent into an inverted V loop
  [ Hits: 9896 | Votes: 11 | Rating: 6.55 ]

• K9FV 40 meters band loop - A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV
  [ Hits: 14876 | Votes: 10 | Rating: 7.6 ]

• A Vertically Polarized Delta Loop for 40m - Practical contruction and designing notes of a delta loop for the 40 meters band
  [ Hits: 20492 | Votes: 16 | Rating: 3.14 ]

• Homebrew G5RV - A G5RV plan for 10-160 meters, 10-40 and 10-80 meters band
  [ Hits: 20564 | Votes: 8 | Rating: 7.75 ]
• G5RV on 75m and 40m - Why the G5RV is a good antenna on 75m and 40m
  [ Hits: 3394 | Votes: 1 | Rating: 3 ]

• W6NL 40m Moxon Yagi - Designed and built by W6NL looks like a loaded yagi this 2 element moxon antenna offer 6dbi
  [ Hits: 4644 | Votes: 11 | Rating: 4.91 ]
• JJ6 Antenna - VK2ABQ G6XN W4RNL G4ZU comparisons
  [ Hits: 2273 | Votes: 1 | Rating: 7 ]

• A Portable Multi-Band Magnetic Loop Antenna  ^pop - Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible
  [ Hits: 34659 | Votes: 12 | Rating: 6.33 ]

• Do You Need an Antenna Tuner - Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format
  [ Hits: 22954 | Votes: 12 | Rating: 4.58 ]

• Antique Radio Repair and Speaker Reconing - Servicing radios made in the 1930's, 40's and 50's. Speaker reconing for vintage and modern speakers.
  [ Hits: 4716 | Votes: 1 | Rating: 8 ]

• 30m QRSS Junkbox Beacon - This simple 30m QRSS beacon is built entirely out of junkbox parts, the only component purchased specifically for this project was the 10,140kHz crystal.
  [ Hits: 2251 | Votes: 1 | Rating: 7 ]

• MF and HF Amateur Radio Band Charts - Easy to read set of band charts for the amateur radio MF and HF bands: 160, 80, 60, 40, 30, 20, 17, 15, 12, and 10 meter by W5JCK
  [ Hits: 1607 | Votes: 6 | Rating: 3 ]

• 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 ]

• Radio 510 International - European relay station broadcasting every weekend on short-wave to all of Europe, Northern Africa and the Middle East on 13840 kHz.
  [ Hits: 565 | Votes: 6 | Rating: 10 ]

• PC-HFDL - Freeware acars deconding software for windows.
  [ Hits: 14866 | Votes: 29 | Rating: 5.76 ]

• The Fox - 750 mw transmitter - This RDF three transistor 144 MHz transmitter uses a 48 MHz scanner crystal as an oscillator / tripler. A second transistor boosts the signal to 40 milliwatts, a third amplifies the power output to 750 milliwatts. Includes schematic and pictures.
  [ Hits: 423 | Votes: 2 | Rating: 5.5 ]

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