Talk:Random wire antenna

Engineering Low‑importance

	Engineering portal This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering articles
Low	This article has been rated as Low-importance on the project's importance scale.

Electronics Mid‑importance

	Electronics portal This article is part of WikiProject Electronics, an attempt to provide a standard approach to writing articles about electronics on Wikipedia. If you would like to participate, you can choose to edit the article attached to this page, or visit the project page, where you can join the project and see a list of open tasks. Leave messages at the project talk pageElectronicsWikipedia:WikiProject ElectronicsTemplate:WikiProject Electronicselectronic articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Telecommunications Mid‑importance

	Telecommunication portal This article is within the scope of WikiProject Telecommunications, a collaborative effort to improve the coverage of Telecommunications on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.TelecommunicationsWikipedia:WikiProject TelecommunicationsTemplate:WikiProject TelecommunicationsTelecommunications articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Radio Low‑importance

This article is within the scope of WikiProject Radio, a collaborative effort to improve the coverage of Radio-related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.RadioWikipedia:WikiProject RadioTemplate:WikiProject RadioRadio articles

Low

This article has been rated as Low-importance on the project's importance scale.

To-do List:

Here are some tasks awaiting attention:

Article requests : Create: Missing years and articles in radio, National Association of Radio Distress-Signalling and Infocommunications (Hungary)
Assess : Unassessed Radio articles; Unknown-importance Radio articles
Cleanup : Radio articles needing attention
Expand : Midweek Politics Bob Crane
Maintain : Portal:Radio
Stubs : Expand: Radio stubs
Verify : Unreferenced BLPs
Other : Collaboration of the Week:
Requests for Radio peer review:

Untitled

My first shot at creating a wiki page. I only had one source, please add info from other sources if you have it. Bmccaff (talk) 05:18, 8 December 2007 (UTC)[reply]

Update, found some info on the web. Bmccaff (talk) 05:23, 8 December 2007 (UTC)[reply]

"Antenna Diversity"

The fact that a large antenna is not as susceptible to small-scale fading is not a diversity effect. The Article you link to (effectively, the "Antenna Diversity" article) actually starts with (emphasis mine):

> Antenna diversity, also known as space diversity or spatial diversity, is any one of several wireless diversity schemes that uses two or more antennas to improve the quality and reliability of a …

So, that's not the case here.

Also, from an information-theoretical point of view, you don't inherently get the advantage of uncorrelated receive paths – if that were the case, the payload signal would actually cancel itself out.

Furthermore, the idea that an LW/MW/SW antenna, which typically is considerably shorter than half wavelength, is subject to significantly different fading situations at different points bears no physical reason. Fading effects also scale with wavelength.

I'm hence removing that section without replacement, sorry. — Preceding unsigned comment added by Marcusmueller ettus (talk • contribs) 09:43, 20 July 2017 (UTC)[reply]

UnUn not BalUn

A "random" length wire antenna is an unbalanced end-fed antenna. The impedance matching transformer used with this type antenna is typically an unbalanced auto-transformer (UnUn), not a balanced transformer (BalUn) as stated in the caption below the image in this article. Ken (talk) 16:27, 23 October 2020 (UTC)[reply]

Random wire antenna used for transmitting avoids resonant lengths

The article says: A quarter-wavelength sized wire works best, and unless fed through an unun, a half-wavelength will exceed the matching ability of most tuners. If an antenna's electrical length is a quarter or half-wavelength at a given operating frequency then it is a resonant antenna, not a random length (i.e., non-resonant) antenna. One of the design goals of a truly random length antenna is to avoid wire lengths that are resonant at any potential operating frequency.Ken (talk) 16:57, 23 October 2020 (UTC)[reply]