|
Long wire to SO-239 50 ohm?
|
Long wire to SO-239 50 ohm?
In article ,
David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. -- Telamon Ventura, California |
Long wire to SO-239 50 ohm?
On Jan 30, 6:38 pm, Telamon
wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. -- Telamon Ventura, California Telamon - That is true. -but- Most so called "MLBs" Magnetic Longwire Baluns are just such 'common ground' Matching Transformers. iane ~ RHF |
Long wire to SO-239 50 ohm?
On Jan 31, 3:38 am, "RHF" wrote:
On Jan 30, 6:38 pm, Telamon wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. -- Telamon Ventura, California Telamon - That is true. -but- Most so called "MLBs" Magnetic Longwire Baluns are just such 'common ground' Matching Transformers. iane ~ RHF . . . . Unless they have changed the internal wiring since 2001, the primary and secondary are completly isolated. MC transformers are NOT a good choice for 'high" RF field locations. I don't know eaxctly at what point it happens, but I ran into big problems with 2nd harmonic distortion when I added a ground ring around my home to my ~70' wire antenna. I also expereinced a number of mix porducts. 1240+770, 1240-770 1240+2(770) etc. MiniCircuit transformers are nice and compact,but the very small size of the ferrite core limits the voltage because the micro cores saturate. There are many reports of MC transfomres getting zapped by static. I never had that problem but the IMD was a serious issue. Wind you own on a suitable core. Terry |
Long wire to SO-239 50 ohm?
In article .com,
"RHF" wrote: On Jan 30, 6:38 pm, Telamon wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. -- Telamon Ventura, California Telamon - That is true. -but- Most so called "MLBs" Magnetic Longwire Baluns are just such 'common ground' Matching Transformers. iane ~ RHF That's OK for a horizontal wire 10 foot off the ground but if it is a Beverage or inverted L for instance then you would start near ground and you could take advantage of separate grounds. -- Telamon Ventura, California |
Long wire to SO-239 50 ohm?
On Tue, 30 Jan 2007 18:38:38 -0800, Telamon
wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. Here ya go, Sparky! http://www.minicircuits.com/products...rmers_pic.html |
Long wire to SO-239 50 ohm?
In article ,
David wrote: On Tue, 30 Jan 2007 18:38:38 -0800, Telamon wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. Here ya go, Sparky! http://www.minicircuits.com/products...rmers_pic.html I'm well familiar with the Mini-circuits site. I have used their components in the past. -- Telamon Ventura, California |
Long wire to SO-239 50 ohm?
On Fri, 02 Feb 2007 01:58:47 GMT, Telamon
wrote: In article , David wrote: On Tue, 30 Jan 2007 18:38:38 -0800, Telamon wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. Here ya go, Sparky! http://www.minicircuits.com/products...rmers_pic.html I'm well familiar with the Mini-circuits site. I have used their components in the past. What about the rest of the viewers? |
Long wire to SO-239 50 ohm?
On Feb 1, 8:04 pm, David wrote:
On Fri, 02 Feb 2007 01:58:47 GMT, Telamon wrote: In article , David wrote: On Tue, 30 Jan 2007 18:38:38 -0800, Telamon wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. Here ya go, Sparky! http://www.minicircuits.com/products...rmers_pic.html I'm well familiar with the Mini-circuits site. I have used their components in the past. What about the rest of the viewers?- Hide quoted text - - Show quoted text - David & Telamon, Now now children be nice to each other. jftfoi ~ RHF |
Long wire to SO-239 50 ohm?
Filuk The Hogfish-Beater wrote:
Ok does anyone have a link that walks you through selecting the parts, winding the balun etc... I'd like to make one but just can't find a decent reference. Go to the following webpage and order item #1542 for $3.00. You'll receive three T-43 ferrite toroidal cores measuring 1/2-inch in diameter. You'll need one core to make the balun. http://www.universal-radio.com/catalog/misc/amidon.html You can get the wire for winding the balun at your local Radio Shack. It comes in an assortment of three sizes for $4.99, catalog #278-1345. Here's the online catalog page for the wi http://tinyurl.com/2fws6t When you have the toroids and wire, get back to the group here and we'll tell you how to wind the balun and/or refer you to a webpage on how to do it. |
Long wire to SO-239 50 ohm?
In article ,
David wrote: On Fri, 02 Feb 2007 01:58:47 GMT, Telamon wrote: In article , David wrote: On Tue, 30 Jan 2007 18:38:38 -0800, Telamon wrote: In article , David wrote: http://www.minicircuits.com/pdfs/T8-1-X65.pdf http://www.minicircuits.com/pdfs/T14-1-X65.pdf You do not have the option of isolating the grounds on either model, which would ordinarily be an advantage of the voltage type of transformer. Here ya go, Sparky! http://www.minicircuits.com/products...rmers_pic.html I'm well familiar with the Mini-circuits site. I have used their components in the past. What about the rest of the viewers? Well, you did specifically refer to my nickname. -- Telamon Ventura, California |
Long wire to SO-239 50 ohm?
On Feb 2, 12:03 am, HFguy wrote:
Filuk The Hogfish-Beater wrote: Ok does anyone have a link that walks you through selecting the parts, winding the balun etc... I'd like to make one but just can't find a decent reference. Go to the following webpage and order item #1542 for $3.00. You'll receive three T-43 ferrite toroidal cores measuring 1/2-inch in diameter. You'll need one core to make the balun. http://www.universal-radio.com/catalog/misc/amidon.html You can get the wire for winding the balun at your local Radio Shack. It comes in an assortment of three sizes for $4.99, - catalog #278-1345. - Here's the online catalog page for the wi - - http://tinyurl.com/2fws6t RadioShack Catalog # 278-1345 315-Feet of Magnet Wire - Set of Three Spools http://www.radioshack.com/product/in...ductId=2036277 1 - 40-Foot Spool of 22-Gauge Magnet Wire 1 - 75-Foot Spool of 26-Gauge Magnet Wire 1 - 200-Foot Spool of 30-Gauge Magnet Wire When you have the toroids and wire, get back to the group here and we'll tell you how to wind the balun and/or refer you to a webpage on how to do it. |
Of Baluns and Balun Kits - What's a Shortwave Listener (SWL) To Do . . .
Of Baluns and Balun Kits - What's a Shortwave Listener (SWL) To
Do . . . http://groups.yahoo.com/group/Shortw.../message/12163 Balun Kit {Toroidal} for Shortwave (HF) 3 MHz to 30 MHz [eBay] http://cgi.ebay.com/Balun-Kit-Toroidal-Type-3- 30Mhz_W0QQitemZ200032993780 Balun Kits [Universal-Radio - et al] http://www.universal-radio.com/catalog/misc/amidon.html http://www.bytemark.com/products/kit_bal1.htm http://www.amidoncorp.com/aai_cost_experimenter.htm http://www.surplussales.com/Antennas/Antennas-2.html Order # Model Description Core Wire Ratios Price Order #1525 - AB-200-10 - Balun Kit T200-2 @ 14 gauge 10 feet 4:1 or 1:1 #1526 - AB-240-125 - Balun Kit FT-240-61 @ 14 gauge 10 feet 4:1 or 1:1 * Wind 10-Turns for the Coax Cable Winding * Wind 30-Turns for the Antenna-Ground Winding * * Check-Out the AU-150A-250 UNUN Kit which includes a FT 150A-K plus 12FT #14 Thermaleze Wire The WireMan - Balun Kits #830 & #831 http://thewireman.com/baluns.html http://www.k1cra.com/catalog/product.aspx?productID=735 Low Power Balun Kit -by- W1CG http://www.njqrp.org/balun/ http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=12668 TECH REF = Amidon Technical Reference and Product Guide http://www.universal-radio.com/catalog/misc/1899.html Although most of these are designed for Amateur Radio {Ham} use for Transmitting : They can also be used for "Receive Only" Shortwave Listening (SWL) too. What's Between Your Shortwave Antenna and Your Coax Cable ? Can You Spell "B A L U N" -or- 'UnUn' -aka- Matching Transformer ! hope this helps to... balun you out - iane ~ RHF {pomkia} . Shortwave Listener (SWL) Antennas Group = http://tinyurl.com/ogvcf GoTo = http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ The SWL Antenna Discussion Group = http://tinyurl.com/ogvcf Shortwave Listener (SWL) Antenna HELP = http://tinyurl.com/ogvcf Shortwave Listener (SWL) Antenna NEWS = http://tinyurl.com/ogvcf Shortwave Listener (SWL) Antenna INFO = http://tinyurl.com/ogvcf * * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers' plus plain old "Mister-Know-It-Alls"; and even those Newbees with "I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ " . The Shortwave Listener's Blessing : SWL BLESSING = http://tinyurl.com/s2bjm May You Never Tire of Listening to the Radio and Always have Strong Signals and Noise Free Reception ~ RHF {ibid} http://groups.yahoo.com/group/Shortw...a/message/9233 . Tous Sont Bienvenus ! - - - Groupe par Radio d'auditeur d'onde courte pour des Antennes de SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Alle Sind Willkommen ! - - - Shortwave Radiozuhörer Gruppe für SWL Antennen http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Tutti Sono Benvenuti ! - - - Gruppo Radiofonico dell'ascoltatore di onda corta per le Antenne di SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Todos São Bem-vindos ! - - - Grupo de Rádio do ouvinte do Shortwave para Antenas de SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Все *адушны ! - - - Группа оператора на приеме коротковолнового диапазона Radio для Aнтенн SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . ¡Todos Son Agradables! - - - Grupo de Radio del oyente de la onda corta para las Antenas de SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . = = = = Plain Old American-English Translation = = = = All are Welcome - - - To Join the Shortwave Listeners (SWL) Antenna Group on YAHOO ! http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . | | | / \ ........!....... = = = On Feb 2, 12:03*am, HFguy wrote: Filuk The Hogfish-Beater wrote: Ok does anyone have a link that walks you through selecting the parts, winding the balun etc... I'd like to make one but just can't find a decent reference. Go to the following webpage and order item #1542 for $3.00. You'll receive three T-43 ferrite toroidal cores measuring 1/2-inch in diameter. You'll need one core to make the balun. http://www.universal-radio.com/catalog/misc/amidon.html You can get the wire for winding the balun at your local Radio Shack. It comes in an assortment of three sizes for $4.99, catalog #278-1345. Here's the online catalog page for the wi http://tinyurl.com/2fws6t When you have the toroids and wire, get back to the group here and we'll tell you how to wind the balun and/or refer you to a webpage on how to do it. |
Long wire to SO-239 50 ohm?
Filuk The Hogfish-Beater wrote: On Fri, 02 Feb 2007 22:50:25 -0800, RHF Has Frothed: On Feb 2, 12:03 am, HFguy wrote: Filuk The Hogfish-Beater wrote: Ok does anyone have a link that walks you through selecting the parts, winding the balun etc... I'd like to make one but just can't find a decent reference. Go to the following webpage and order item #1542 for $3.00. You'll receive three T-43 ferrite toroidal cores measuring 1/2-inch in diameter. You'll need one core to make the balun. http://www.universal-radio.com/catalog/misc/amidon.html You can get the wire for winding the balun at your local Radio Shack. It comes in an assortment of three sizes for $4.99, - catalog #278-1345. - Here's the online catalog page for the wi - - http://tinyurl.com/2fws6t RadioShack Catalog # 278-1345 315-Feet of Magnet Wire - Set of Three Spools http://www.radioshack.com/product/in...ductId=2036277 1 - 40-Foot Spool of 22-Gauge Magnet Wire 1 - 75-Foot Spool of 26-Gauge Magnet Wire 1 - 200-Foot Spool of 30-Gauge Magnet Wire When you have the toroids and wire, get back to the group here and we'll tell you how to wind the balun and/or refer you to a webpage on how to do it. Thank you all, will visit a local electronics shop (true electronics shop that has lots of goodies, not Radio Slack) and pick these or their equivs up. http://members.aol.com/DXerCapeCod/z_transformers.pdf http://www.dxing.info/equipment/impe...ing_bryant.pdf dxAce Michigan USA |
Long wire to SO-239 50 ohm?
On 1 Feb 2007 20:49:21 -0800, "tack" wrote:
Looks like you have to order 25 min You are WRONG! Ellanawor Klift! |
Long wire to SO-239 50 ohm?
On Feb 3, 6:12 am, David wrote:
On 1 Feb 2007 20:49:21 -0800, "tack" wrote: Looks like you have to order 25 min You are WRONG! Ellanawor Klift! David - That would be "Eleanor Clift". http://en.wikipedia.org/wiki/Eleanor_Clift http://www.foxnews.com/story/0,2933,2635,00.html Married William Brooks Clift the brother of the Actor "Montgomery Clift" {From Here To Eternity} http://www.nndb.com/people/227/000117873/ http://en.wikipedia.org/wiki/Montgomery_Clift "Capitol Letter" a weekly Newsweek.com and MSNBC feature -by- Newsweek contributing editor Eleanor Clift http://www.msnbc.msn.com/id/6890358/site/newsweek/ http://feeds.newsweek.com/newsweek/c...s/EleanorClift The McLaughlin Group (TMG) http://www.mclaughlin.com/about/bio.asp?pid=13 http://en.wikipedia.org/wiki/The_McLaughlin_Group - - - The Usual Suspects at TMG http://www.mclaughlin.com/about/group.asp John McLaughlin - TV Host of "The McLaughlin Group" http:// en.wikipedia.org/wiki/John_McLaughlin_%28host%29 Who is a former Jesuit Priest and graduate of Boston College http://www.nndb.com/people/629/000061446/ http://en.wikipedia.org/wiki/Boston_College About the "Society of Jesus" -aka- The Jesuits http://en.wikipedia.org/wiki/Society_of_Jesus http://www.nndb.com/org/840/000114498/ - - - Saint Ignatius of Loyola http://www.nndb.com/people/626/000094344/ as always - more than you wanted to know ~ RHF |
Long wire to SO-239 50 ohm?
On 3 Feb 2007 09:51:31 -0800, "RHF"
wrote: On Feb 3, 6:12 am, David wrote: On 1 Feb 2007 20:49:21 -0800, "tack" wrote: Looks like you have to order 25 min You are WRONG! Ellanawor Klift! David - That would be "Eleanor Clift". http://en.wikipedia.org/wiki/Eleanor_Clift http://www.foxnews.com/story/0,2933,2635,00.html Married William Brooks Clift the brother of the Actor "Montgomery Clift" {From Here To Eternity} http://www.nndb.com/people/227/000117873/ http://en.wikipedia.org/wiki/Montgomery_Clift "Capitol Letter" a weekly Newsweek.com and MSNBC feature -by- Newsweek contributing editor Eleanor Clift http://www.msnbc.msn.com/id/6890358/site/newsweek/ http://feeds.newsweek.com/newsweek/c...s/EleanorClift The McLaughlin Group (TMG) http://www.mclaughlin.com/about/bio.asp?pid=13 http://en.wikipedia.org/wiki/The_McLaughlin_Group - - - The Usual Suspects at TMG http://www.mclaughlin.com/about/group.asp John McLaughlin - TV Host of "The McLaughlin Group" http:// en.wikipedia.org/wiki/John_McLaughlin_%28host%29 Who is a former Jesuit Priest and graduate of Boston College http://www.nndb.com/people/629/000061446/ http://en.wikipedia.org/wiki/Boston_College About the "Society of Jesus" -aka- The Jesuits http://en.wikipedia.org/wiki/Society_of_Jesus http://www.nndb.com/org/840/000114498/ - - - Saint Ignatius of Loyola http://www.nndb.com/people/626/000094344/ as always - more than you wanted to know ~ RHF . Never miss it. Bye-bye... |
| All times are GMT +1. The time now is 05:53 AM. |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
RadioBanter.com