View Single Post
  #9   Report Post  
Old January 26th 05, 09:17 AM
RHF
 
Posts: n/a
Default

MICHAEL,
..
"Also, how do I connect a lightning arrestor to the antenna
and how do I properly connect the coax to the antenna ?"
..
Of... Lightning Arrestors and the Antenna Wire to Coax Cable Connection
http://groups.yahoo.com/group/Shortw...a/message/2041
..
ZAP - - - - - / \ / \ / \ / \ / \ / \ / - - - - - ________
Here are several Lightning Arrestor type devices
that can offer some "Limited Protection" in the
event of a 'nearby' Lightening Strike in your area.
..
* Opek A7516 Lightning Arrestor [ Basic Air-Gap ]
http://www.universal-radio.com/catal...tect/4618.html
..
* Transi-Trap LT utilizes a hermetically sealed gas filled cylinder
http://www.universal-radio.com/catal...tect/1502.html
..
* Alpha Delta ATT3G50 series of coax surge protectors
http://www.universal-radio.com/catal...tect/4003.html
..
* Antenna Super Market "Zap Trapper" Coaxial
http://www.universal-radio.com/catal...tect/2993.html
..
* Cushcraft Constant Impedance LAC4
uses a replaceable Gas Discharge Tube
http://www.universal-radio.com/catal...tect/0614.html
..
* DEO Receiver Guard 2000U
http://www.universal-radio.com/catal...tect/1305.html
..
* Diamond CA Series of Coax Surge Protectors
http://www.universal-radio.com/catal...tect/2318.html
..
..
THE ANTENNA WIRE TO COAX CABLE CONNECTION :
..
IMHO - The best was to make the Antenna Wire to Coax
Cable Connection is to use a Matching Transformer Balun
UnUn or what is called a Magnetic LongWire Balun.
+ These devices make the Electrical-Mechanical (Joints)
Connections between the Antenna Wire Element; the
Ground Wire; and the Coax Cable Feed-in-Line.
+ These devices also help to 'match' the "Impedance" of
the Antenna Wire Element to the Coax Cable Feed-in-Line.
+ These devices provide a "Direct-DC-Ground-Path" for
any Electrical Discharge pasted through the Antenna Wire
Element to earthen ground.
..
* * * Balun Reading List ( Long )
http://groups.yahoo.com/group/Shortw...na/message/337
..
* RF Systems Magnetic Longwire Balun (MLB)
http://www.universal-radio.com/catalog/antsup/1484.html
..
* Shortwave Longwire (10:1) Antenna Feeder #SWL-1
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5745940468
..
* "Universal Magnetic Balun" (UMB) a Receiving (Only) Antenna
Balun with a 9:1 impedance ratio by Wellbrook, UK.
UMB= http://www.wellbrook.uk.com/UMB.html
..
* Shortwave Longwire Antenna Feeder with balun LWF-1
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5745918363
..
* Magnetic Longwire Balun (MLB) Palomar
http://www.palomar-engineers.com/MLB-1/mlb-1.html
http://www.antennex.com/palomar/page_6.htm
..
* Longwire Isolated (10:1) Antenna Feeder - SWL-1G
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5746411443
..
* WiNRADiO WR-LWA-0130 Long Wire Antenna Adapter
http://groups.yahoo.com/group/Shortw...na/message/230
http://www.grove-ent.com/WR0130.html
http://www.winradio.com/home/lwa.htm
http://www.winradio.com/home/ax05e.htm
..
..
BUILT YOUR OWN BALUN :
Do-It-Yourself Antenna Balun Kits by ByteMark
http://www.bytemark.com/products/kit_bal1.htm
..
..
iane ~ RHF
..
All are WELCOME at the Shortwave Listener (SWL) "Antenna Ashram"
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
..
Some Say: On A Clear Day You Can See Forever.
http://groups.yahoo.com/group/Shortw...na/message/502
..
I BELIEVE: On A Clear Night . . .
You Can Hear Forever and Beyond, The BEYOND !
With a Shortwave Listener SWL Antenna of your own making.
"If You Build It {SWL Antenna} You Will Hear Them !"