9 simple j

9 simple j

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• 9 element yagi for 2 meters band  ^pop - A simple design of a 9 elem. yagi antenna for 2 meters band
  [ Hits: 53051 | Votes: 259 | Rating: 5.23 ]
• VHF Coax Dipole - A simple coax dipole antenna for 144 MHz by 9A7PJT
  [ Hits: 1265 | Votes: 2 | Rating: 2 ]

• Portable Dipole Antenna for 7 MHz - A simple portable dipole antenna for the 40 meter band using a total lenght of 18 meter. It can be used for 80 to 10 meters coverage using a antenna tuner.
  [ Hits: 304 | Votes: 2 | Rating: 7.5 ]

• 80M Vertical antenna with capacitance hat - Simple wire antenna cheap to make, using readily available materials, Low angle radiation, with rejection of high angle signals Wide bandwidth, with resonance at the 80M DX window (3.790-3.800 MHz); and Maximum height is 40 feet
  [ Hits: 24990 | Votes: 23 | Rating: 7.05 ]

• The 9:1 balun  ^pop - Homemade 9:1 antenna balun simple project
  [ Hits: 33235 | Votes: 36 | Rating: 6.16 ]

• 70 cm Power splitter - A simple accurate power splitter for the 70cm uplink to Oscar 13
  [ Hits: 1788 | Votes: 2 | Rating: 1 ]

• Helix Antenna for 7 MHz - From his simple ham radio antennas series, KH6JRM describe an interesting short vertical helix antenna for th 40 meters band
  [ Hits: 1629 | Votes: 2 | Rating: 2.5 ]

• HF J-Pole antenna - A Simple Nondirectional Antenna for Ten Meters QST February 1950, Easy to build J-Pole antenna for restricted space.
  [ Hits: 6557 | Votes: 3 | Rating: 3 ]

• A Hanging Rectangular Loop Antenna - A rotatable hanging loop antenna that has been specifically designed for hanging in a tree. Horizontally polarized with a broad azimuth pattern and gain of nearly 3dB over a simple horizontal dipole!
  [ Hits: 3741 | Votes: 9 | Rating: 7.79 ]

• PL259 Antenna - A simple VHF quarter wave antenna from PL25
  [ Hits: 532 | Votes: 2 | Rating: 9 ]

• 9 band vertical HF antenna by RW3XA  ^pop - Simple vertical radiator with matching box. No traps, no tuner required for this multiband antenna
  [ Hits: 38524 | Votes: 43 | Rating: 7.34 ]

• Coffee Can WiFi Antenna - This wi-fi antenna design is a much simpler DIY project than the pringles cantenna. Basically there are 3 parts to a build-your-own 2.4 Ghz cantenna kit: a pigtail, an N-female connector and a metal coffee can.
  [ Hits: 1280 | Votes: 1 | Rating: 1 ]

• Roger G3XBM's Amateur Radio Blog - Simple QRP projects, 10m, 6m, WSPR beaconing, sub-9kHz and other random stuff
  [ Hits: 503 | Votes: 0 | Rating: 0 ]

• Yagi Modeler Applet - This java applet/application implements a simple yagi modeling code. The initial input is a really trivial 2 elmenent yagi.
  [ Hits: 2890 | Votes: 29 | Rating: 6.07 ]

• CI-V Test - CI-V Test for Win98 (others not tested, but should work) is a simple freeware program to display received CI-V messages in Hex and text, and send commands for test purposes to the rig. This program is not intended to convienently control your rig, just explore the functions of CI-V.
  [ Hits: 2282 | Votes: 6 | Rating: 8.67 ]

• Cheap and simple HF dummy load - This is the report of a MFJ-259B analysis of two 100 ohm / 5 watts resistors in parallel partially in italian
  [ Hits: 2079 | Votes: 4 | Rating: 6 ]

• TS-590S Pan Adapter Cable - This article describes how to make a simple receiver Out adapter cable for the Kenwood TS-590S, so a second receiver can be connected and used as a pan-adapter
  [ Hits: 1389 | Votes: 1 | Rating: 1 ]

• Active Attenuator - This active attenuator works as a simple mixer. A signal from a 1 MHz oscillator is mixed with the received signal in a 1N914 diode.
  [ Hits: 277 | Votes: 1 | Rating: 6 ]

• Ultra-Simple Oscilloscope - This homemade tube oscilloscope is based on the WaterMan Pocket-Scope 0510A, a 3 tube oscilloscope made in 1946.
  [ Hits: 1479 | Votes: 3 | Rating: 9.67 ]

• RF Probe project - A simple RF probe diagram
  [ Hits: 451 | Votes: 1 | Rating: 6 ]

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