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Update for 11-11-21 14:15

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Tyler Perkins 2021-11-11 14:15:01 -05:00
parent 613d278652
commit 0c1d32ab3c
9 changed files with 53 additions and 9 deletions
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tech/Capacitor.wiki
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A Capacitor is a component that stores energy in an electric field. It does
this by having two plates seperated by a dielectric. This is called
capactitance and is measured in farads (F).
Capacitors are resistant to changes in voltage, and therefore can be used to
smooth out sudden changes. They also cause AC signals voltage and current to
get out of sync

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tech/Fuse.wiki Normal file
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= Fuse =
A fuse is a current sensitive component that will "blow" when a certain current
is reached, killing the circut. This is useful for protecting components.

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tech/Ham.wiki
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@ -30,3 +30,7 @@ see [[frequency_range]]
== Electronics ==
see [[electronics]]
== Signals ==

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tech/Impedance.wiki
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@ -5,3 +5,6 @@ However, they can become out of phase when passing through a [[Capacitor]] or
[[Inductor]]. Capacitors are resistant to changes in voltage, causing voltage
and current to get out of sync. Inductors are resistant to chagnes in current,
causing voltage to get out of sync.
This getting out of sync is called reactance. The total reactance is called
Impedance. Impedance is measured in Ohms, shown as Z

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tech/Inductor.wiki
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An Inductor is a component that stores energy in a magnetic field. It does this
by using a current flowing through a coil of wire, often around a magnet.
Inductance is measured in Henery's (H)
Inductors are resistant to changes in current, and therefore can be used to
smooth out sudden changes. They also cause AC signals voltage and current to
get out of sync.

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tech/Oscillator.wiki Normal file
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= Oscillator =
An oscillator produces signal at a set frequency. They are useful for creating
the base signals upon which modulation can be performed to encode information.
An Oscillator is also known as a Clock.

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tech/Resonance.wiki Normal file
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= Resonance =
Resonance is the phenomenon in which the impedance from several
capacitors/inductors cancel each other out in a circut. This cause the circut
to be "tuned" to a certain frequency. Resonance creates a filter, rejecting
certain frequencies and allowing others.

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tech/electronics.wiki
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@ -24,12 +24,21 @@ and R is resistance(Ohms).
Power is Voltage times Current and is measured in Watts (W). Power is a rate
upon which electrical energy is used.
Also see
* [[Impedance]]
* [[Resonance]]
== Primitive ==
* [[Resistor]]
* [[Capacitor]]
* [[Inductor]]
* [[Impedance]]
* [[Fuse]]
== AC/Radio ==
* [[Oscillator]]
== Combinational ==

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tech/frequency_range.wiki
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@ -5,14 +5,19 @@ standardized. They appear below
| Name | Abbreviation | Range | Notes |
---------------------------------------
| Very Low Freq | VLF | 3khz - 30khz | |
| Low Freq | LF | 30khz - 300khz | |
| Medium Freq | MF | 300khz - 3mhz | AM Radio |
| High Freq | HF | 3mhz - 30mhz | Shortwave |
| Very High Freq | VHF | 30mhz - 300mhz | VHF TV, FM radio |
| Ultra High Freq | UHF | 300mhz - 3ghz | UHF TV, 3G/4G |
| Super High Freq | SHF | 3ghz - 30ghz | |
| Extreme High Freq | EHF | 30ghz - 300ghz | |
| Very Low Freq | VLF | 3khz - 30khz | |
| Low Freq | LF | 30khz - 300khz | |
| Medium Freq | MF | 300khz - 3mhz | AM Radio |
| High Freq | HF | 3mhz - 30mhz | Shortwave, 10m to 1m |
| Very High Freq | VHF | 30mhz - 300mhz | VHF TV, FM radio, 1000cm to 100cm |
| Ultra High Freq | UHF | 300mhz - 3ghz | UHF TV, 3G/4G, 100cm to 30cm |
| Super High Freq | SHF | 3ghz - 30ghz | |
| Extreme High Freq | EHF | 30ghz - 300ghz | |
To calculate a wavelength from a frequency
WL = c / f
Where WL is wavelength,
c is speed of light (3 * 10^8 m/s)
f is frequency