Date: Tue, 19 Jul 94 04:30:32 PDT From: Ham-Space Mailing List and Newsgroup Errors-To: Ham-Space-Errors@UCSD.Edu Reply-To: Ham-Space@UCSD.Edu Precedence: Bulk Subject: Ham-Space Digest V94 #196 To: Ham-Space Ham-Space Digest Tue, 19 Jul 94 Volume 94 : Issue 196 Today's Topics: Antenna questions ARLS027 SAREX Apollo 11 event ARLS028 SAREX airshow contact Portable 9600 buad PacSat Station Design Smartlevel Two-Line Orbital Element Set: Space Shuttle Wanted NASA Courtsey Tone Info 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-Space Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/ham-space". 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: 18 Jul 1994 17:46:44 -0500 From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!not-for-mail@network.ucsd.edu Subject: Antenna questions To: ham-space@ucsd.edu I installed Az/El rotors on a tripod on my roof this weekend. Next, I plan to buy some M2 antennas: 14 el. CP yagi for VHF 30 el. CP yagi for UHF I must use the short VHF antenna because I have light-duty rotors, and a long boom would bump into tree branches and an exhaust vent. Can anyone answer the following questions? 1. Is it (mechanically) easy to build a phasing/relay assembly for RH/LH polarity switching on the M2 antennas? 2. Is the M2 crossboom really 10 ft. long when assembled? 3. Would a 7 ft. crossboom be long enough for VHF and UHF yagis on each end, and a future 2x3 ft. dish in the middle? (i.e. without undesired interaction between the antennas) 4. Would a preamp at the VHF yagi feedpoint distort the pattern of the antenna? Or should I mount the preamp on the mast? 5. Do some preamp models switch fast enough (PIN diodes maybe?) to allow me to transmit "through" the preamp without a timing circuit that bypasses the preamp before keying the transmitter? If so, do these preamps require a PTT line routed up to the preamp, or do they detect the RF? Please respond to wayne@csg.mot.com, or to the newsgroup. Thanks in advance. 73 de WD5FFH (Wayne Estes, Mundelein, IL) -- Wayne A. Estes Motorola Asia-Pacific Cellular Subscriber Division 600 N. U.S. Hwy. 45, Rm. A-S345 Libertyville, IL 60048-1286 PHONE: 1-708-523-2386 Z-MAIL: wayne@csg.mot.com FAX: 1-708-523-8795 POST: w10191@email.mot.com ------------------------------ Date: Mon, 18 Jul 1994 18:32:38 EDT From: psinntp!arrl.org!usenet@uunet.uu.net Subject: ARLS027 SAREX Apollo 11 event To: ham-space@ucsd.edu SB SPACE @ ARL $ARLS027 ARLS027 SAREX Apollo 11 event ZCZC AS71 QST de W1AW Space Bulletin 027 ARLS027 ------------------------------ Date: Mon, 18 Jul 1994 18:34:00 EDT From: psinntp!arrl.org!usenet@uunet.uu.net Subject: ARLS028 SAREX airshow contact To: ham-space@ucsd.edu SB SPACE @ ARL $ARLS028 ARLS028 SAREX airshow contact ZCZC AS72 QST de W1AW Space Bulletin 028 ARLS028 ------------------------------ Date: Mon, 18 Jul 1994 17:32:50 GMT From: spsgate!mogate!newsgate!hofbrau.sps.mot.com!user@uunet.uu.net Subject: Portable 9600 buad PacSat Station Design To: ham-space@ucsd.edu In article , n7ryw@teleport.com (William Roth) wrote: > Avoid a Mac like the plague for anything related to Amateur Radio. This is a really stupid thing to say...typical bias from a "PC" clone... Terry Stader posts a list every month to this newsgroup listing amateur radio software available for the Mac. There is lots of software available and a lot more on the way. -- * Chris Terwilliger, AA7WD a229aa@email.sps.mot.com * * Motorola AA7WD@N7MRP.AZ.USA.NA * * Phoenix Corporate Research Labs those who forget the past * * 2100 E. Elliot Rd. EL508 are condemned to repeat it * * Tempe, AZ 85284 - George Santayana * ------------------------------ Date: 18 Jul 1994 19:00:28 GMT From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!spool.mu.edu!torn!newshost.uwo.ca!gateway!mail@network.ucsd.edu Subject: Smartlevel To: ham-space@ucsd.edu While at Dayton this year I picked up a Smartelevel (microprocessor controlled level) that can communicate with a computer to give elevation information for tracking purposes (you mount it on the antenna strcuture). The problem is that when I bought it, I was told that the information I need to interface to it and the communication protocal was commonly available on most Ham radio BBS's. I haven't been able to find anything. Does anyone out there know what it is I'm refferring to and can point in the direction of the info I need to talk to this thing ? Thanks in advance. Leo ------------------------------ Date: Mon, 18 Jul 1994 22:34:55 GMT From: ihnp4.ucsd.edu!usc!math.ohio-state.edu!cs.utexas.edu!convex!news.duke.edu!zombie.ncsc.mil!blackbird.afit.af.mil!tkelso@network.ucsd.edu Subject: Two-Line Orbital Element Set: Space Shuttle To: ham-space@ucsd.edu The most current orbital elements from the NORAD two-line element sets are carried on the Celestial BBS, (513) *253-9767*, and are updated daily (when possible). Documentation and tracking software are also available on this system. As a service to the satellite user community, the most current elements for the current shuttle mission are provided below. The Celestial BBS may be accessed 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using 8 data bits, 1 stop bit, no parity. Element sets (also updated daily), shuttle elements, and some documentation and software are also available via anonymous ftp from archive.afit.af.mil (129.92.1.66) in the directory pub/space. STS 65 1 23173U 94039A 94199.05208333 .00002061 00000-0 46339-5 0 346 2 23173 28.4701 297.7530 0003541 49.7661 65.8230 15.91047481 1497 -- Dr TS Kelso Assistant Professor of Space Operations tkelso@afit.af.mil Air Force Institute of Technology ------------------------------ Date: 18 Jul 94 11:14:06 -0500 From: ihnp4.ucsd.edu!swrinde!emory!nntp.msstate.edu!nntp.memphis.edu!ieeelib@network.ucsd.edu Subject: Wanted NASA Courtsey Tone Info To: ham-space@ucsd.edu Hi, I am one of the control operators of the w4bs repeater system in Memphis,TN. We are looking for the frequency and duration of the NASA courtesy tones. We would like to change the courtesy tones of our repeaters to remember the 25th Anniversary of the first man on moon. If anybody has info on these tones please send me a e-mail msg. Thanks in advance, Suresh N9GSA ___ ___ _____ Suresh Kagoo, Network Engineer, HealthSphere of America Inc. | |__| | / ____\ / \ 5135 Covington Way #4| Domain: IEEELIB@MSUVX1.MEMPHIS.EDU | __ | \____ \ / - \ Memphis, TN 38134 | AMPR : n9gsa@gate.n9gsa.ampr.org |_| |_| \_____/ /_/ \_\ 1-800-532-3107 | AX.25 : N9GSA@W4BS.#WESTN.TN.USA ------------------------------ Date: (null) From: (null) ------------------------------ Date: (null) From: (null) ------------------------------ End of Ham-Space Digest V94 #196 ******************************