butler pa

butler pa

Antennas : 15M

• HF Copper Loop  ^pop - A small transmitting loop antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR Based on material originally published in Amateur Radio, 11 1991
  [ Hits: 25356 | Votes: 21 | Rating: 6.63 ]
• HF Copper Loop for 20 and 15 meters - A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR
  [ Hits: 7744 | Votes: 1 | Rating: 5 ]
• Small loop antenna for 15 and 20 meters - A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space by Lloyd Butler VK5BR
  [ Hits: 3598 | Votes: 1 | Rating: 2 ]

• VHF TX Loop - VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR
  [ Hits: 4456 | Votes: 4 | Rating: 4.5 ]

• VLF-LF and the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise by Lloyd Butler VK5BR
  [ Hits: 1368 | Votes: 0 | Rating: 0 ]

• VHF Antenna in a Lunchbox - The magnetic loop on two metres
  [ Hits: 1510 | Votes: 1 | Rating: 3 ]
• A Small Loop for 20 and 15 meter band - A Small Transmitting Loop Antenna for 14MHz and 21MHz, an antenna you might consider if you have limited space, Based on material originally published in Amateur Radio, November 1991
  [ Hits: 421 | Votes: 0 | Rating: 0 ]
• 2 meter Magnetic Loop Antenna - VHF Antenna in a Lunchbox, The Magnetic Loop on Two Metres. The two metre magnetic loop is a compact antenna which can easily be hung up under the eaves, the carport, or any other place where space is limited including indoors
  [ Hits: 525 | Votes: 1 | Rating: 1 ]

• The Z Match Using a Toroidal Core Coil - Combined with Miniature Tuning Gang Capacitors, a toroidal core inductor is a means to assemble a compact Z Match assembly for Low Power (QRP) use.
  [ Hits: 608 | Votes: 0 | Rating: 0 ]

• VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.
  [ Hits: 3424 | Votes: 5 | Rating: 5.4 ]

• An Experimental Q Meter - The article describes Q factor, methods of measuring Q factor, inductance and capacity using a Q meter and the design of an experimental Q meter unit. The Q factor or quality factor of an inductance is commonly expressed as the ratio of its series reactance to its series resistance.
  [ Hits: 236 | Votes: 0 | Rating: 0 ]