H: Difference between revisions

From Amateur Radio Wiki
Jump to navigation Jump to search
(index)
 
No edit summary
Line 1: Line 1:
<table width="750" border="1" cellpadding="6">
{{glossary}}
  <tr>
 
    <td>[[Dictionary of Ham Radio Terms | A]] </td>
==H==
    <td>[[B]]</td>
 
    <td>[[C]]</td>
'''[[Harmonics | Harmonic]]''' : Integer multiples of the fundamental frequency being generated, harmonics are present if a signal is not perfectly sinusoidal or is undergoing intermodulation distortion. Harmonics located outside the desired band for transmission are normally removed with low-pass filters to avoid interference to other radio services.
    <td>[[D]]</td>
 
    <td>[[E]]</td>
'''Hellschreiber''' (Hell) : A digital mode for sending and receiving text using facsimile (fax) technology.
    <td>[[F]]</td>
 
    <td>[[G]]</td>
'''Henry''' :(H)  The unit for [[Inductors |inductance]]
    <td>[[H]]</td>
 
    <td>[[I]]</td>
'''Hertz''' : Hz - The unit of measure for [[Frequency Wavelength and Period |frequency]].
    <td>[[J]]</td>
 
    <td>[[K]]</td>
'''[[HF]]''' : High Frequency. Frequencies in the range 3MHz to 30MHz.
    <td>[[L]]</td>
 
    <td>[[M]]</td>
'''High Pass Filter''' : A [[Filters |filter]] designed to pass high frequency signals.
    <td>[[N]]</td>
 
    <td>[[O]]</td>
'''Horizontal Polarization''' : An antenna or radio signal in which the electric field is propagated parallel to the surface of the Earth.
    <td>[[P]]</td>
 
    <td>[[Q]]</td>
'''HT''' : '''H'''andheld '''T'''ransceiver or '''H'''andi'''T'''alkie. Usually refers to transceivers that operate in the [[2 metres | 2m]] and [[70 centimetres | 70cm]] amateur bands; these are self-contained hand-held radios which include an antenna and battery and transmit at low power.
    <td>[[R]]</td>
    <td>[[S]]</td>
    <td>[[T]]</td>
    <td>[[U]]</td>
    <td>[[V]]</td>
    <td>[[W]]</td>
    <td>[[X]]</td>
    <td>[[Y]]</td>
    <td>[[Z]]</td>
    <td>[[0 - 9]] </td>
  </tr>
</table>

Revision as of 14:45, 12 June 2009

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 - 9

H

Harmonic : Integer multiples of the fundamental frequency being generated, harmonics are present if a signal is not perfectly sinusoidal or is undergoing intermodulation distortion. Harmonics located outside the desired band for transmission are normally removed with low-pass filters to avoid interference to other radio services.

Hellschreiber (Hell) : A digital mode for sending and receiving text using facsimile (fax) technology.

Henry :(H) The unit for inductance

Hertz : Hz - The unit of measure for frequency.

HF : High Frequency. Frequencies in the range 3MHz to 30MHz.

High Pass Filter : A filter designed to pass high frequency signals.

Horizontal Polarization : An antenna or radio signal in which the electric field is propagated parallel to the surface of the Earth.

HT : Handheld Transceiver or HandiTalkie. Usually refers to transceivers that operate in the 2m and 70cm amateur bands; these are self-contained hand-held radios which include an antenna and battery and transmit at low power.

Retrieved from "http://wiki.hamtools.org/index.php?title=H&oldid=3408"