From time to time an antenna manufactures will state that an antenna
has "unity gain". It is my understanding that this term is used for
describing antennas used in mobile applications and is referenced to
the gain of a quarter-wave whip.

Does anyone know of any instances where this term is used otherwise?

in my opnion unity gain is any antenna with ZERO gain such as a dipole
or a discone

Dan Richardson wrote:
From time to time an antenna manufactures will state that an antenna
has "unity gain". It is my understanding that this term is used for
describing antennas used in mobile applications and is referenced to
the gain of a quarter-wave whip.

Does anyone know of any instances where this term is used otherwise?

Gain loosely refers to 'better than' .
If you have an antenna with 2.5 dbd gain then it has 2.5 db gain of a
'dipole' (the last 'd' in dbd). (good).
"Unity" is another way of saying 'one'.
"Unity gain" means its no better than whatever you're comparing it to - and
no worse.
Unity gain is good if the antenna has other redeeming attributes (like
being smaller or less noticeable).
Unity gain is not good if you're expecting it to outperform the antenna
you're comparing it to.

The term 'Unity Gain' is not 'reserved' for any particular type of antenna.

"Dan Richardson @arrl.net" ChangeThisToCallSign wrote in message
...
From time to time an antenna manufactures will state that an antenna
has "unity gain". It is my understanding that this term is used for
describing antennas used in mobile applications and is referenced to
the gain of a quarter-wave whip.

Does anyone know of any instances where this term is used otherwise?


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Also reflects a vertical or horizontal dipole signal. (No gain over a
dipole)
"Dan Richardson @arrl.net" ChangeThisToCallSign wrote in message
...
From time to time an antenna manufactures will state that an antenna
has "unity gain". It is my understanding that this term is used for
describing antennas used in mobile applications and is referenced to
the gain of a quarter-wave whip.

Does anyone know of any instances where this term is used otherwise?

Hello,

Gain figures are often false and misleading - in the UK if you had told
CBers a certain aerial had 10dB gain - they would all buy one. It's just a
number plucked from the air in most cases.

"Dan Richardson @arrl.net" ChangeThisToCallSign wrote in message
...
From time to time an antenna manufactures will state that an antenna
has "unity gain". It is my understanding that this term is used for
describing antennas used in mobile applications and is referenced to
the gain of a quarter-wave whip.

Does anyone know of any instances where this term is used otherwise?


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.707 / Virus Database: 463 - Release Date: 15/06/2004

Also reflects a vertical or horizontal dipole signal. (No gain over a
dipole)
"Dan Richardson @arrl.net" ChangeThisToCallSign wrote in message
...
From time to time an antenna manufactures will state that an antenna
has "unity gain". It is my understanding that this term is used for
describing antennas used in mobile applications and is referenced to
the gain of a quarter-wave whip.

Does anyone know of any instances where this term is used otherwise?