Date: Tue, 17 May 94 04:30:11 PDT From: Ham-Ant Mailing List and Newsgroup Errors-To: Ham-Ant-Errors@UCSD.Edu Reply-To: Ham-Ant@UCSD.Edu Precedence: Bulk Subject: Ham-Ant Digest V94 #146 To: Ham-Ant Ham-Ant Digest Tue, 17 May 94 Volume 94 : Issue 146 Today's Topics: ?? Need help with an external short wave radio antenna ?? Baluns and dipoles HELP! - Sharp PC-6200 lcd & docs Workshop On Microwave Technology - Cincinnati, Ohio - June 2-3 1994 Send Replies or notes for publication to: Send subscription requests to: Problems you can't solve otherwise to brian@ucsd.edu. Archives of past issues of the Ham-Ant Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/ham-ant". We trust that readers are intelligent enough to realize that all text herein consists of personal comments and does not represent the official policies or positions of any party. Your mileage may vary. So there. ---------------------------------------------------------------------- Date: Tue, 17 May 1994 08:50:19 GMT From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!usenet.ins.cwru.edu!news.csuohio.edu!vmcms.csuohio.edu!R0264@network.ucsd.edu Subject: ?? Need help with an external short wave radio antenna ?? To: ham-ant@ucsd.edu I need to gather some info on building an antenna for short wave reception? Please excuse my ignorance, I am very new at this. Someone told me that All I need to do is connect a very long thin wire from an adjacent tree to the house and one from the ground and connect them into the adapter that goes into the external antenna plug. I have some questions: 1) How long should this wire be? Is it somehow related to the frequencies that I am interested in? What if I am interested in more than one? 2) should the wire be shilded or unshielded? 3) what should be the gauge of the wire? The thicker the better? 4) should the wire be the meshed type or a single thread? >>> Please include this message for reference <<< ====== S. Alavi [salavi@unity.ncsu.edu] (919)467-7909 (H) ======== (919)856-3817 (W) It does not make much difference on most of what you ask. Almost any kind of wire will work. Get at least about 50 feet outdoors and up high. ------ Phil Emerson. ------------------------------ Date: 17 May 1994 01:30:07 -0400 From: usc!howland.reston.ans.net!europa.eng.gtefsd.com!emory!news-feed-2.peachnet.edu!news-feed-1.peachnet.edu!news.duke.edu!solaris.cc.vt.edu!news.ans.net!newstf01.cr1.aol.com!@@ihnp4.ucsd.edu Subject: Baluns and dipoles To: ham-ant@ucsd.edu I'm trying to construct dipole antenna for my FM transmitter. A few of the books I've looked at suggest using a balun transformer between the poles. My question. Where do I find one (or how do I make one) and is it really necessary. Any suggestions, (especially on what parts to buy) would be greatly appreciated. Tony ------------------------------ Date: Tue, 17 May 94 03:08:22 CST From: usenet.elf.com!sundog.tiac.net!usenet@uunet.uu.net Subject: HELP! - Sharp PC-6200 lcd & docs To: ham-ant@ucsd.edu hi, mitch wa4osr here in mobile, alabama... my sharp pc-6200 was dropped and the lcd display was damaged... upon taking the display apart, one of the surface mount column drivers was cracked... rendering the display unusable... therefore, i am in desperate need of the lcd display panel... the part numbers on the display panel are LM64N671 and 90D13145W ... both numbers are on the panel... my pc-6200 is actually a pc-6220, which i think indicates that it has a 20 mb hard drive... i bought the pc-6220 used with absolutely *NO* docs... it has the 2400 baud internal modem... i need *ANY* info, but especially would appreciate a copy of the owner/operator manual... i will gladly pay for copies/postage... if anyone can help with a source of the lcd panel or with the docs please email me or call me collect at the below numbers... thanks for any help/leads... mitch, wa4osr fmitch@netcom.com 205-476-4100 work 205-342-7259 home 11 Midtown Park, E. Mobile, AL 36606 ------------------------------ Date: 16 May 94 20:38:58 GMT From: agate!howland.reston.ans.net!math.ohio-state.edu!cyber2.cyberstore.ca!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@ucbvax.berkeley.edu Subject: Workshop On Microwave Technology - Cincinnati, Ohio - June 2-3 1994 To: ham-ant@ucsd.edu WORKSHOP ON MICROWAVE TECHNOLOGY * * * * 2000 and BEYOND * * * * June 2-3, 1994 Organized by: Ohio Aerospace Institute (OAI) Microwave TechNet Participating Organizations: IEEE - Cincinnati, Cleveland, and Dayton Sections University of Cincinnati Location: University of Cincinnati Objective of Workshop: To provide an in depth review of some of the major commercial application areas in Microwave Technology expected to be dominant in the coming years. This workshop will also provide a forum for presenting your present work to your colleagues. hopefully stimulating new developments in this area. AGENDA JUNE 2, 1994 - Thursday 8:00-9:00 am Registration 9:00-12:00 am Invited Talks * Microwave and Millimeter Wave Technology at NASA Lewis Research Center - G. E. Ponchak, NASA LeRC * Cellular Communication Systems - T. Freeburg, Motorola * Industrial Applications of Microwaves 12:00-1:00 pm - Lunch 1:00-3:00 pm - Invited Talks * Microwave Integrated Circuit Technology - M. Calcatera, Wright- Patterson Air Force Base * Optically Controlled Phased Array Antenna Systems - N. P. Bernstein, Rome Lab 3:00-5:00 pm - Contributed Papers June 3, 1994 - Friday 9:00-12:00 am Invited Talks * Microwave Applications in Medicine - L. Taylor, University of Maryland * Radar, Past, Present, and Future - M. Skolnik, Naval Research Laboratory * Transfer of Photonic Technology to Industry - N. P. Bernstein, Rome Lab 12:00-1:00 pm - Lunch 1:00 - 2:30 pm - Panel Discussion Fees: Registration: $100 Proceedings: $50 For Information: Contact by May 31, 1994: NORMA NAVARRO E-mail: yynav@oai-pop.lerc.nasa.gov Ohio Aerospace Institute 22800 Cedar Point Road Cleveland, Ohio 44142 (216) 962-3014 Please feel free to redistribute this announcement anywhere you feel appropriate. ------------------------------ Date: Tue, 17 May 94 01:42:24 -0500 From: ihnp4.ucsd.edu!swrinde!emory!europa.eng.gtefsd.com!howland.reston.ans.net!noc.near.net!news.delphi.com!usenet@network.ucsd.edu To: ham-ant@ucsd.edu References <2qpk4n$p9d@taco.cc.ncsu.edu>, <2qr1ua$hnm@chnews.intel.com>, <2qrn77$cgd@taco.cc.ncsu.edu>t Subject : Re: A "shorty" 40 M mobile antenna hi Am interested in 20 meter mobile using a base loaded whip on the middle of the roof of my Tauras wagon. Probably with a 64 inch whip and 3 inch spring. Do you think there will be much ground plane component to be effective? thanks in advance.. Bill KG7CK ------------------------------ End of Ham-Ant Digest V94 #146 ******************************