Antennas

Contents:
  1. Common Antenna Problems
  2. Dipoles-Horizontal
  3. OCF Dipoles
  4. W3DZZ MULTI-BAND ANTENNA 80-40-20-15-10M
  5. Loops
  6. Beverage Antenna (Receive Only)
  7. My Antenna Projects
  8. Professional Antennas
  9. Passive Intermodulation (PIM)
  10. Satinless Steel vs. Copper and Aluminium
  11. Mobile Antennas
  12. Duplexer or Diplexer
  13. References

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Related Pages:
  1. Delta Loop Antenna

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Common Antenna Problems

http://www.k0bg.com/problems.html#swr

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Dipoles-Horizontal

https://offgridham.com/2016/12/portable-antenna-hf/

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OCF Dipoles



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W3DZZ MULTI-BAND ANTENNA 80-40-20-15-10M

https://rsars.files.wordpress.com/2013/01/w3dzz-antenna-iss-1-31.pdf

Antenna Traps for the W3DZZ 7.1 MHz 100 Watts

W3DZZ - a classic dipole heavily modified, now 5 bands & no tuner



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Loops

VK2JI 40 meter Loop: https://vk2ji.com/equipment/antennas/40-metre-horizontal-loop-antenna/

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Beverage Antenna (Receive Only)

https://en.wikipedia.org/wiki/Beverage_antenna

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My Antenna Projects

Yagi No1 - 2m 13el Antennas Built February 2018:
As yet still not completed.

Yagi No2 - 70cm 8el Antennas Built March 2019:
70cm 8el Antennas Built March 2019

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Professional Antennas

Commercial Antennas

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Passive Intermodulation (PIM)

PIM is a form of intermodulation distortion that occurs in components normally thought of as linear, such as cables, connectors and antennas. PIM shows up as a set of unwanted signals created by the mixing of two or more strong RF signals in a nonlinear device, such as a loose or corroded connector, or nearby rust. Other names for PIM include the diode effect and the rusty bolt effect.
Source:https://www.anritsu.com/en-US/test-measurement/technologies/pim

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Satinless Steel vs. Copper and Aluminium

Antenna Wire Stainless Steel, Aluminium, or Copper:
https://www.hfkits.com/antenna-wire/

Round Wire ac Resistance Calculator:
http://chemandy.com/calculators/round-wire-ac-resistance-calculator.htm

Stainless Steel vs. Copper Dipole Comparison @ 7 MHz [PDF]:
http://www.mwrs.org.au/Documents/StainlessSteelvsCopperDipoleComparison.pdf

Antenna Wire: Stainless Steel vs. Copper:>Satinless Steel vs. Copper
https://www.mwrs.org.au/2011/06/23/antenna-wire-stainless-steel-vs-copper/

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Mobile Antennas

https://g3tso4.wixsite.com/g3tso/mobile-antenna

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Duplexer or Diplexer

Duplex, Duplexer, Diplexer? - By Peter Matthews on Jul 5, 2023
https://blog.knowlescapacitors.com/blog/duplex-duplexer-diplexer#:~:text=Duplexers%20are%20also%20a%203,move%20from%20A%20to%20C



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References

Martin Steyer DK7ZB Antenna-Homepage:
https://www.qsl.net/dk7zb/dk7zb_news.htm

Antenna Schemes:
http://www.in3eci.it/index.php?fl=5&op=mcs&id_cont=383&eng=1%20TO%2080&idm=427

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Glenn Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl20190128 - pre published v0.9