Thread: New Antenna
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Old February 3rd 08, 05:38 PM posted to rec.radio.shortwave
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First recorded activity by RadioBanter: Jun 2006
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Default Lightning EMF Protection using an In-Line Gas Discharge Tube (GDT){Arc-Plug} Device

- -
- - They are a sealed gas tube. However, impurities, leakage...
- - that sort of thing, compromise effectiveness over time.
- - And even a few static strikes will produce some electrolytic
- - action between the electrodes and the gas introducing further
- - impurities. I read an article a some years ago, either on the
- - Universal or the Grove websites, recommending replacement
- - of the gas cartridge every few years as a matter of course.
- -
- - The Transitrap has a replaceable cartridge, in part, for this
reason.
-
- Now you did it! You made me go dig out the paperwork!
-
- From the Alpha Delta data sheet: ...
- Arc-Plug Cartridge replacement is indicated by an increase
- in VSWR during transmitter tune-up, or by a "dead" receiver
- caused by the Arc-Plug Cartridge being shorted due to an
- extremely strong near-miss lightning dischharge.


For the Newbies : Lightning EMF Protection using an
In-Line Gas Discharge Tube (GDT) {Arc-Plug} Device.

Arc-Plug Cartridge Cartridge Replacement Page 2
http://polysat.calpoly.edu/earthstation/documents/delta-4.pdf

ARC-PLUG (tm) Gas Tube Module
http://www.alphadeltacom.com/tt3g50.html

Gas Surge Arrestor using an "Arc-Plug Cartridge" consist of
http://www.primecellular.com/859902-..._p_51-307.html
two Metal Electrodes that are Hermetically Sealed in a rugged
Gas Filled, Ceramic Cylinder. -more details to read-
http://www.alternativewireless.com/c...Protector.html

Electric Arc Discharge Tube Containing a Gas
or a Vapor US Patent held by "GE" -circa- 1935
http://www.freepatentsonline.com/2020715.html

Deuterium Gas Discharge Tube (GDT) -circa- 1994
http://www.patentstorm.us/patents/5552669.html

ABOUT - Gas Filled Tube
http://en.wikipedia.org/wiki/Gas_filled_tube
Gas-Filled Tubes operate by Ionizing the Gas with
applied Voltage to start Electrical Conduction.
* Features of a Micro-Gap Gas Filled Tube
http://www.mmea.com/surge_ab/surge08/micro.htm
http://www.allaboutcircuits.com/vol_3/chpt_7/2.html
http://www.sankosha-usa.com/
http://scifun.chem.wisc.edu/chemweek...t/gasemit.html

CAUTION - Arc-Plug(R) Cartridge Pill Will Not Operate
without a good Ground.
http://www.eham.net/reviews/detail/2791

REMEMBER - Good Earthen Ground/Grounding is the
Foundation of All Lightning EMF Protection [.]

Oops - Do not cornfuza dees Arc-Plug(R) Cartridge
wit E-A-R(R) Arc Plug(tm) Dual-End Earplugs. :o))
http://www.labsafety.com/search/AOSa...sredirect=true

YouTube does "Homemade Gas-Discharge Tube"
http://www.youtube.com/watch?v=KV08O-dM9Jg
http://www.physics.lsa.umich.edu/dem...cs/7b10_10.jpg

"How NOT to Have a QSO with the Clouds"
http://www.iceradioproducts.com/thorshammer.htm
Dodging Thor's Hammer -by- Tom Cox [KT9OM]

Ready-Made In-Line Gas Discharge Tube (GDT) {Arc-Plug} Devices :

Antenna Super Market "Zap Trapper" Coaxial
http://www.universal-radio.com/catal...tect/2993.html
The life of the "Zap Trapper" is dependent on the surge current
magnitude and durations. The Gas Discharge Tube (GDT) can last for
thousands of cycles and will typically last for many years.

Alpha Delta "Transi-Trap" LT utilizes a hermetically sealed
http://www.universal-radio.com/catalog/protect.html
gas filled cylinder GDT which has very reliable and predictable
switching characteristics. -read more-

Alpha Delta ATT3G50 "Arc Cartridge" Coax Surge Protectors
http://www.universal-radio.com/catal...tect/4003.html
After hundreds of protective firings of the Arc Cartridge (GDT)
or after a catastrophic surge, the Arc Cartridge may fail and
require replacement.

PolyPhaser Impulse Suppressor
http://www.universal-radio.com/catal...tect/4640.html

I.C.E. (ICE) Coaxial Impulse Suppressor / Arrestor
http://www.iceradioproducts.com/3.html
http://www.iceradioproducts.com/impulse1.html#1