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<table width="750" border="1" cellpadding="6">
{{glossary}}
  <tr>
 
    <td>[[Dictionary of Ham Radio Terms | A]] </td>
==I==
    <td>[[B]]</td>
 
    <td>[[C]]</td>
'''[http://www.iaru.org/ IARU] ''' : '''I'''nternational '''A'''mateur '''R'''adio '''U'''nion.  An international society that works for and with national organisations to promote the interests of hams.
    <td>[[D]]</td>
 
    <td>[[E]]</td>
'''IF''' : '''I'''ntermediate '''F'''requency, at which signals are amplified and processed internally within a receiver.
    <td>[[F]]</td>
 
    <td>[[G]]</td>
'''IFK''' : '''I'''ncremental '''F'''requency '''K'''eying a variant of MFSK
    <td>[[H]]</td>
 
    <td>[[I]]</td>
'''Image frequency''' : A frequency separated from that of the desired received signal by twice the receiver's intermediate frequency.
    <td>[[J]]</td>
 
    <td>[[K]]</td>
'''Ionosphere''' : a region in the atmosphere that contains ionised gasses that refract (bend) radio waves and direct them back to earth.
    <td>[[L]]</td>
 
    <td>[[M]]</td>
'''[[Inductors | Inductance]]''' : A measure of how well a coil stores energy in the form of a magnetic field.
    <td>[[N]]</td>
 
    <td>[[O]]</td>
'''[[Inductors | Inductor]]''' : a coil of wire. Inductors are often used with [[Capacitors | capacitors]] in tuned circuits such as [[Filters |filters]] and [[Oscillator Design |oscillators]]. Some inductors are wound around a core of metallic material. This affects their inductance.
    <td>[[P]]</td>
 
    <td>[[Q]]</td>
'''[[Radio/PC Interfaces | Interface]]''': usually refers to a circuit used to connect the sound card of a computer to a transceiver to allow digital [[Modes | modes]] to be used.
    <td>[[R]]</td>
 
    <td>[[S]]</td>
'''Interference''' : The interaction between a desired frequency and an undesired frequency.
    <td>[[T]]</td>
 
    <td>[[U]]</td>
'''Intermodulation''' : The undesired mixing of two or more frequencies, producing sometimes undesirable additional frequencies.
    <td>[[V]]</td>
 
    <td>[[W]]</td>
'''Insulator''' : A substance through which electricity does not pass easily - known as a dielectric in [[Capacitors | capacitors]]
    <td>[[X]]</td>
 
    <td>[[Y]]</td>
'''[[IRLP]]''' '''I'''nternet '''R'''adio '''L'''inking '''P'''roject. A method of cross-world linking of repeaters so that very basic equipment can be used to communicate with hams in other countries.
    <td>[[Z]]</td>
 
    <td>[[0 - 9]] </td>
'''Inverter''' : a device that converts a DC source to and AC output.
  </tr>
 
</table>
'''[http://www.itu.int/net/home/index.aspx ITU]''' : International telecommunication Union. The international organisation set up to standardise and regulate radio communications.

Latest revision as of 22:36, 18 December 2010

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

I

IARU  : International Amateur Radio Union. An international society that works for and with national organisations to promote the interests of hams.

IF : Intermediate Frequency, at which signals are amplified and processed internally within a receiver.

IFK : Incremental Frequency Keying a variant of MFSK

Image frequency : A frequency separated from that of the desired received signal by twice the receiver's intermediate frequency.

Ionosphere : a region in the atmosphere that contains ionised gasses that refract (bend) radio waves and direct them back to earth.

Inductance : A measure of how well a coil stores energy in the form of a magnetic field.

Inductor : a coil of wire. Inductors are often used with capacitors in tuned circuits such as filters and oscillators. Some inductors are wound around a core of metallic material. This affects their inductance.

Interface: usually refers to a circuit used to connect the sound card of a computer to a transceiver to allow digital modes to be used.

Interference : The interaction between a desired frequency and an undesired frequency.

Intermodulation : The undesired mixing of two or more frequencies, producing sometimes undesirable additional frequencies.

Insulator : A substance through which electricity does not pass easily - known as a dielectric in capacitors

IRLP Internet Radio Linking Project. A method of cross-world linking of repeaters so that very basic equipment can be used to communicate with hams in other countries.

Inverter : a device that converts a DC source to and AC output.

ITU : International telecommunication Union. The international organisation set up to standardise and regulate radio communications.

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