From wang!elf.wang.com!ucsd.edu!info-hams-relay Sat Mar 23 06:20:30 1991 remote from tosspot Received: by tosspot (1.63/waf) via UUCP; Sat, 23 Mar 91 09:47:46 EST for lee Received: from somewhere by elf.wang.com id aa09279; Sat, 23 Mar 91 6:20:29 GMT Received: from ucsd.edu by relay1.UU.NET with SMTP (5.61/UUNET-shadow-mx) id AA08938; Fri, 22 Mar 91 23:56:02 -0500 Received: by ucsd.edu; id AA27004 sendmail 5.64/UCSD-2.1-sun Fri, 22 Mar 91 16:45:33 -0800 for brian Received: by ucsd.edu; id AA26966 sendmail 5.64/UCSD-2.1-sun Fri, 22 Mar 91 16:45:08 -0800 for /usr/lib/sendmail -oc -odb -oQ/var/spool/lqueue -oi -finfo-hams-relay info-hams-list Message-Id: <9103230045.AA26966@ucsd.edu> Date: Fri, 22 Mar 91 16:45:06 PST From: Info-Hams Mailing List and Newsgroup Reply-To: Info-Hams@ucsd.edu Subject: Info-Hams Digest V91 #232 To: Info-Hams@ucsd.edu Info-Hams Digest Fri, 22 Mar 91 Volume 91 : Issue 232 Today's Topics: Administrivia contest DX BULLETIN 14 ARLD014 First No-code Tech? (2 msgs) Gell cells Hints & Kinks for taking the General code test New Technician Frequencies STS-37 SAREX Information Summary What is a "Sideswiper" CW Key? 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 Info-Hams Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams". 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: Fri, 22 Mar 91 14:06:00 -0800 From: brian (Brian Kantor) Subject: Administrivia To: info-hams-digest Sorry about the deluge of digests; I just fixed the gateway and we had 10 days worth of traffic to catch up on. Things should tame out now. As many of you know, these mailing lists are gatewayed bidirectionally with newsgroups on Usenet. Recently those newsgroups underwent a reorganization, with the ham-radio group being split into several groups, primarily splitting off a "policy" group for the discussion of things like no-code, license classes, rules and regulations, etc. That newsgroup is now available as a separate digest from ucsd, the ham-policy digest. You may subscribe, as always, by sending mail to listserv@ucsd.edu. Now that everything is working, I'm going on vacation for a week. Flames will be extinguished when I get back. - Brian ------------------------------ Date: 22 Mar 91 22:31:50 GMT From: usc!cs.utexas.edu!ut-emx!oo7@ucsd.edu Subject: contest To: info-hams@ucsd.edu Yes, the contest is the last weekend of March, and QST is wrong. They sometimes do get it wrong - both the phone and cw RSGB contest dates were off by a week last year, or perhaps the one before. I don't think the contest organisers worry about Easter, but they try to avoid big football weekends... It's the WPX contest, not WW. And it's only on phone, anyway :-) It might be fun to listen at 0000 the previous weekend and harrass any CQ machines that start up then... Derek Wills (AA5BT, G3NMX) Department of Astronomy, University of Texas, Austin TX 78712. (512-471-1392) oo7@astro.as.utexas.edu oo7@emx.utexas.edu ------------------------------ Date: 22 Mar 91 18:51:47 GMT From: swrinde!elroy.jpl.nasa.gov!usc!zaphod.mps.ohio-state.edu!tut.cis.ohio-state.edu!n8emr!@ucsd.edu Subject: DX BULLETIN 14 ARLD014 To: info-hams@ucsd.edu ============================================================== | Automatic relayed from packet radio via | | N8EMR's Ham BBS, 614-895-2553 1200/2400/9600/V.32/PEP/MNP5 | ============================================================== ZCZC AE20 QST DE W1AW DX BULLETIN 14 ARLD014 FROM ARRL HEADQUARTERS NEWINGTON CT MARCH 22, 1991 RELAYED BY KB8NW/OBS & BARF-80 BBS TO ALL RADIO AMATEURS Thanks to Joe Sand, K2GX, and the TRISTATE DX PacketCluster Network and to Paul, KB1BE, with the Connecticut DX Association, for the following DX news. FROM THE DXCC DESK. Another reminder that the dealine for the DXCC Honor Roll submissions is March 28, 1991. Cards must be received by THURSDAY, March 28 to qualify for the next Honor Roll Listing. Both ARRL HQ and W1AW will be closed on FRIDAY, March 29. BANGLADESH, S2. A recent FAX, received March 21, stated that Jim Smith, VK9NS, is leaving Norfolk Island tomorrow afternoon, on route for Dhaka via Bangkok. He will be arriving on March 22, after 1 PM. Jim will be meeting with the Ministry of Information on Saturday morning. He has mixed feelings, at the present time, but will keep in touch with Kirtsi by FAX and telephone. Listen on the 222 Net for further information. CHRISTMAS ISLAND, VK9X. On April 2 to 9 an operation is planned by a Japanese group. ETHIOPIA, ET. W4IBB, Jack, will return to the USA on March 30, 1991. ET2A has been consistently found on 21300 KHz at 1900 UTC. Other activity on 28400 KHz at 1230 UTC and 28636 at 1800 UTC was also reported. QSL via WB2WOW. LAOS, XW8. XW8KPL is QRV Saturdays. Try SSB on 15 meters between 1500 to 1700 UTC. MYANMAR, XZ. JA8IXN is being deluged with QSL requests for XZ9A. Masa has stated that he denies all knowledge of this operation. NEPAL, 9N. 9N1MM meets KA9RLJ most evenings at 0100 UTC on 14253 KHz. He would be glad to QSO with you. Father Moran QSLs via N7EB. SAN FELIX, CE0. XQ0X continues to be active on 10 and 15 meters operating SSB. Try 21245 KHz or 28495 KHz. Juan will QRT in April. QSL via CE3ESS. TOGO, 5V. 5V7RF, Dick says he is often on 21335 KHz or 14296 KHz at 2100 UTC. QSL via NC6A. YEMEN, 70. Gabbie, DL2BCH, tells us that she has the logs for 7O1AA. She asks us to remind you that German airmail postage is almost two dollars. Cards for the operation of 7O8AA are currently being received here. Both 9K2CS and F6EXV plan to be in Dayton the end of April, 1991. Joe, K2GX, reminds eveyone not to miss the fun next weekend, March 30 and 31, in the CQ WW WPX contest. There are contest expeditions planned that are too numerous to list. However, contesting affords the DXer an opportunity to fill band and mode requirments and to hone operating skills in the company of the worlds best operators. Good Luck on DX de KB8NW/OBS ------------------------------ Date: 22 Mar 91 21:34:58 GMT From: gatech!usenet.ins.cwru.edu!ukma!s.ms.uky.edu!andreap@ucsd.edu Subject: First No-code Tech? To: info-hams@ucsd.edu A month or so ago I helped administer the novice written to a lady (a ham's wife) who went on to take the No-code Tech. written option a few days later. I do not know if she is the first but she was certainly one of the first. Having known this person for several years, I am sure she knew all that was necessary to pass the test and I know she will operate appropriately. It is not her knowledge, skill, or ability to copy code that concerns me. It is instead her motives. I love radio and feel that radio posesses a magic quality that can not be described. I became a ham because I enjoy pursuing radio as a hobby. If ham radio did not exist I would find other ways of involving myself in radio. This lady, and I fear, many others entering our number do not share this feeling. She was getting licensed so that she could talk to her husband -- not because she loves radio. There are other business, GMRS, etc. services better suited for persons who are looking for a personal communications system. If amateur radio is to survive it must attract people who join because they are genuinely interested in radio. Not looking for a portable telephone or wanting to be able to keep tabs on their spouse. As an important mode of communication, code has been outmoded. However, in our efforts to move forward and keep up with technology, we must be careful to attract people motivated to join our number for the right reasons. I welcome the new no-code technicians. May they further the radio art as much as their predecessors. [Please excuse my spelling and organization. This was typed on the fly!] --------------- Harold G. Peach, Jr. Internet: hgpeach@ca.uky.edu 252 Ag. Engineering Bldg., U.Ky. Packet Radio: N4FLZ@KF4NB.KY.USA.NA Lexington, KY 40546-0276 Phone: (606) 257-3335 ------------------------------ Date: 23 Mar 91 00:05:18 GMT From: usc!snorkelwacker.mit.edu!stanford.edu!neon.Stanford.EDU!kaufman@ucsd.edu Subject: First No-code Tech? To: info-hams@ucsd.edu In article andreap@ms.uky.edu (Peach) writes: >This lady, and I fear, many others entering our number do not share >this feeling. She was getting licensed so that she could talk >to her husband -- not because she loves radio. There are other >business, GMRS, etc. services better suited for persons who are >looking for a personal communications system. Perhaps you should look as this as a way to keep her husband in ham radio, rather than as an affront to the purposes of HR. Follups to ->policy Marc Kaufman (kaufman@Neon.stanford.edu) ------------------------------ Date: 22 Mar 91 20:13:28 GMT From: amdcad!usenet@ames.arpa Subject: Gell cells To: info-hams@ucsd.edu Netters, Well I received several responses to my request for information on the care and feeding of Gell Cells. The overall response was that I can treat them as if they are standard Lead-acid batteries. This is true except that I must limit the charge to less than 20% of the Amp/hr rating and that they may be trickle charged to 120% of capacity 'for ever'. Thanks to those who responded. To save net bandwidth and I will forward a file that contains all responses upon request. Phil N6MWC ------------------------------ Date: 21 Mar 91 20:20:57 GMT From: hpl-opus!hpnmdla!alanb@hplabs.hpl.hp.com Subject: Hints & Kinks for taking the General code test To: info-hams@ucsd.edu In rec.radio.amateur.misc, k3tx@wells.UUCP (Dave Heller) writes: >1. The "example" of the questions for the code test - - ultra- simple >multiple choice - are proof ample that the V.E. program is truly a >nice way of giving away amateur licenses. >2. Bad enough that a full minute solid copy is no longer required, >3. Nor is the sending test - - >4. But to permit 7 out of l0 ultra-simple choices to be a pass - - >5. Even with the minimal knowledge and some careful guessing a 50% >score can be automatic - - >6. 25% is automatic with pure guesssing. >7. So, I ask, what VE group is making up tests as ridiculous >as the example given? >K3TX Believe it or not, many people who fail the 7-out-of-10 questions pass the 1-minute-solid-copy. The question-type exam is a convenience for the examiners (easier to grade) and does not make the test significantly easier to pass. AL N1AL ------------------------------ Date: 21 Mar 91 20:32:10 GMT From: hpl-opus!hpnmdla!alanb@hplabs.hpl.hp.com Subject: New Technician Frequencies To: info-hams@ucsd.edu In rec.radio.amateur.misc, sdkuo@argo.acs.oakland.edu (Steve Kuo) writes: >I plan to get my Technician class license soon by studying the old questions >that I have (01nov89). The contents is pretty much the same from what >I've heard, but I think the frequencies have changed. Here is the amateur >band that I have effective 01-Nov-89. If someone could please send me >the changes in band(s) I would much appriciate it. Following not available to "no-code" Tech: >3700-3750 kHz/CW (Changed to 3675-3725) >7100-7150 kHz/CW >21.1-21.2 MHz/CW >28.1-28.5 MHz/CW >28.3-28.5 MHz/Telephony Following available to any Tech: >50.0-54.0 MHz/CW >50.1-54.0 MHz/Telephony >144.0-148.0 MHz/CW >144.1-148.0 MHz/All >220.0-225.0 MHz/All (that has changed I think?) (Soon to be 222-225 MHz) >420.0-450.0 MHz/All (this can't be right?) (Depends on where you live) >902.0-928.0 MHz/All >1240.0-1300.0 MHz/All AL N1AL ------------------------------ Date: 21 Mar 91 17:13:28 GMT From: agate!eos!aio!gamorris@ucbvax.berkeley.edu Subject: STS-37 SAREX Information Summary To: info-hams@ucsd.edu STS-37 SAREX Shuttle Amateur Radio EXperiment Information Summary Table of Contents ----------------- o Introduction o Keplerian Element Set o SAREX Uplink/Downlink Frequencies o SAREX Packet Operating Hints o Mission Audio Retransmissions o W5RRR Special Event Station o W1AW Voice Bulletins o AMSAT Net Operations o JSC INFO BBS o NASA Select Video Broadcast o STS-37 SAREX Timeline Revised: 910321 N5QWC ============================================================ SAREX Introduction STS-37 Crew: N5RAW, Steve Nagel, Mission Commander KB5AWP, Ken Cameron, Pilot N5QWL, Jay Apt, Mission Specialist N5RAX, Linda Godwin, Mission Specialist N5SCW, Jerry Ross, Mission Specialist SAREX equipment on this flight includes a 2m (144-146 Mhz) Motorola radio (output 2.3 watts), Robot 1200C slow scan convertor, Heath HK-21 packet TNC, a 70cm FSTV receiver, a video camera, and a Monitor/VCR. Planned operations include voice contacts, packet robot, downlinking orbiter video via SSTV, uplinking FSTV video to the orbiter. During sleep periods and when no other SAREX activities are scheduled the equipment will be left on in packet robot mode. If time permits the crew will setup SAREX to transmit SSTV using orbiter video cameras during the GRO satellite release and during the EVA. The GRO satellite release is scheduled for MET 2/03:00 (2 days 3 hours after launch) for 1 hour. The EVA is scheduled for MET 2/22:00 thru MET 3/05:00. With 5 hams on the flight there may be many unscheduled opportunities for operation, I suggest you monitor both downlink frequencies on all passes starting with orbit 1 until landing, even during sleep periods you could hear something other than packet. Contacts between the shuttle and school children will be retransmitted by W5RRR, see timeline for times, and W5RRR frequency information below. ============================================================ Keplerian Element Set STS-37 1 00037U 91 94.64868056 .00023000 17236-3 0 49 2 00037 28.4683 237.6443 0006982 279.6613 80.3332 15.37985111 23 Satellite: STS-37 Epoch time: 91094.64868056 Element set: JSC-004 Inclination: 28.4683 deg Space Shuttle Flight STS-37 RA of node: 237.6443 deg Keplerian Elements Eccentricity: .0006982 from pre-launch post OMS-2 vector Arg of perigee: 279.6613 deg Launch: 04 APR 91 14:20 UTC Mean anomaly: 80.3332 deg Mean motion: 15.37985111 rev/day W5RRR Decay rate: 2.30E-04 rev/day^2 NASA Johnson Space Center Epoch rev: 2 ============================================================ SAREX Uplink/Downlink Frequencies Downlink/Uplink Frequencies for Voice/Packet/SSTV to be used on Upcoming Mission Get out your HTUs and HT programming manuals. You will want to program your 2 meter FM transceivers with the following information. Note that only stations with prior arrangements can uplink FSTV signals (special authorization is required from the FCC). It is expected that uplinking FSTV will require about 15kw ERP. FSTV ops and 2m can occur simultaneously. Mode Downlink Freq Uplink Freq -------------- ------------- ----------- Voice/SSTV 145.55 144.95 (primary), 144.91, 144.97 Packet 145.51 144.91 (primary), 144.93, 144.99 FSTV none 70cm band Please note that the frequencies they will be listening for stations ARE DIFFERENT than the one they will transmit on. This is a very important fact to understand. They will transmit to earth (downlink) on a single frequency 145.55 MHz for voice and SSTV. They will listen for stations transmitting to the shuttle (uplink) on the other frequencies listed. This "split" operation is used quite successfully by DXers when operating in an environment where large pile ups are expected. There will be no simplex operation with SAREX on either voice or packet. Although packeteers are not accustomed to operation with a TX/RX offset, in this case, it is the only way to connect to SAREX. If you transmit on 145.55 or 145.51 MHz the only people who will hear you are those other Hams in your area trying to hear the shuttle. ============================================================ SAREX Packet Operating Hints FULLDUP OFF DWAIT 0.1 - 0.5 seconds FRACK > 3.0 seconds C KB5AWP The packet call sign on board the shuttle is KB5AWP (SSID=0). Your TNC should be in half-duplex mode (FULLDUP OFF) with CD active just like you do for normal VHF packet operations. If you can compensate for doppler shift it is worth the extra effort. The bandwidth of the SAREX radio is +/-4Khz, maximum doppler is around 3.3Khz. If you canUt compensate for doppler your best chance for contact is when the shuttle is at peak elevation at your site. You should be careful with the setting of two of your TNC's timers: DWAIT and FRACK. DWAIT is the time interval after your Carrier Detect light goes out and before your transmitter turns on. You want to make sure your connects requests and ACKs are contained in the 3 second FUDtimer window. If everybody runs the same DWAIT (like the typical 0.1 - 0.5 second values used for terrestrial packet), then everybody will be transmitting at the same time. Part of the key to your success when uplink QRM is heavy is to pick a DWAIT that nobody else is using! (sort of like picking a lottery number!) FRACK sets the time interval between your transmissions. After you send a frame, your TNC waits for the FRACK time, and then waits for the Carrier Detect signal to drop, then waits DWAIT, and then tries again. You should make sure your FRACK is at least 3 seconds so that you are not transmitting when the robot's FUDtimer decides it is time for it to transmit -- if you are transmitting at the same time, you will miss any packets the shuttle is addressing to you and you won't have a successful QSO. Note that your DWAIT (how soon do I transmit?) and FRACK (then how long do I wait?) parameters and the need to stop transmitting so you can hear a reply are just like you encounter when working a DXpedition pileup on HF. If the DX station has a pattern of listening for a few seconds (=FUDtimer) before transmitting, you may have better luck being the LAST station they hear, after the din dies down. The differences are that (1) the robot is a computer and is very predictable and (2) the robot can be working several stations at one time. ============================================================ Mission Audio Retransmissions The following stations will retransmit the mission audio from the shuttle and ground controllers. WA3NAN - Goddard Space Flight Center (GSFC), Greenbelt, Maryland. W5RRR - Johnson Space Center (JSC), Houston, Texas W6VIO - Jet Propulsion Laboratory (JPL), Pasadena, California. W6FXN - Los Angeles K6MF - San Francisco W4MWG - Mebane, NC Station VHF 10m 15m 20m 40m 80m ------ ------ ------ ------ ------ ----- ----- WA3NAN 147.45 28.650 21.395 14.295 7.185 3.860 W5RRR 146.64 W6VIO 224.04 21.340 14.270 W6FXN 145.46 K6MF 145.58 7.165 3.840 NASA/JSC 171.15 W4MWG 14.230 (SSTV) ============================================================ W5RRR Special Event Station W5RRR - Johnson Space Center (JSC) ARC, Houston, TX. Special event station with bulletins, updated element sets, and current flight information will be making contacts and answering questions using SSB on the HF bands. The frequencies are listed below. The special event station will start after launch and run up thru landing. W5RRR will also retransmit the audio from the contacts between STS-37 and schools. Three of the 5 bands will be in use at any given time, band selection will be determined by propagation (usually 10/15/20m daytime, 20/40/80m night). Station 10m 15m 20m 40m 80m ----- ------ ------ ------ ----- ----- W5RRR 28.400 21.350 14.280 7.227 3.850 (+/- QRM) ============================================================ W1AW Voice Bulletins W1AW will be broadcasting daily bulletins with updated information on SAREX during the flight. Voice bulletins are transmitted daily at 0230 UTC and 0530 UTC on the following frequencies: Station 10m 15m 17m 20m 40m 80m ----- ------ ------ ------ ------ ----- ----- W1AW 28.590 21.390 18.160 14.290 7.290 3.990 ============================================================ AMSAT Net Operations Information will also be available from the AMSAT net, tune in for bulletins. The net operates every week on: Sunday 1800-2100 UCT (international) 14.282 Mhz USB Tuesday 0130-0300 UCT (USA) 3.840 Mhz LSB ============================================================ JSC INFO BBS The Public Affairs Office at the Johnson Space Center operates a BBS to provide information to the public. Check this board for updates to the keplerian element sets during the flight. To access the BBS, call +1-713-483-2500 using 1200 baud, 8-N-1, at the ENTER NUMBER: prompt, enter "62511" and you will be connected to the BBS. Check file area 30 or 99 for latest element sets. NASA JSC's Electronic Space Information BBS is intended to provide 24-hour access to biographies of NASA officials and astronauts, news releases, space flight mission presskits and television schedules, space shuttle systems information, flight manifests and schedules, and other information about the space program. ============================================================ NASA Select Video Broadcast The continental United States will receive NASA Select television, 24 hours a day throughout the mission, via: SATCOM F2R Transponder 13 72 degrees West Longitude 3960 MHz (Video) 6.8 MHZ (Audio) ============================================================ STS-37 SAREX Timeline (unofficial summary) MET (ST/DST)** UTC D H M Rev Event PT CT ET ----------- ------- --- ----------------------------------- ---- -------- ---- 4/4/91 1420 0 00 00 1 LAUNCH 0620 4/4 0820 0920 4/4/91 2115 0 06 55 5 Start SAREX Setup 1315 4/4 1515 1615 4/4/91 2120 0 07 00 5 Begin Pre-Sleep Activity 1320 4/4 1520 1620 4/4/91 2140 0 07 20 5 Finish SAREX Setup 1340 4/4 1540 1640 4/5/91 0020 0 10 00 7 Begin Sleep Period 1620 4/4 1820 1920 4/5/91 0820 0 18 00 12 Begin Post-Sleep Activity 0020 4/5 0220 0320 4/5/91 1120 0 21 00 14 End Post-Sleep Activity 0320 4/5 0520 0620 4/5/91 1210 0 21 50 15 Cabin depress to 10.2 PSI 0410 4/5 0610 0710 4/5/91 1332 0 23 12 16 AOS FSTV w/N9AB, US Bridge 0532 4/5 0732 0832 4/5/91 1350 0 23 30 16 LOS FSTV w/N9AB, US Bridge 0550 4/5 0750 0850 4/5/91 1511 1 00 51 17 AOS School #1 via US Bridge 0711 4/5 0911 1011 4/5/91 1529 1 01 09 17 LOS School #1 via US Bridge 0729 4/5 0929 1029 4/5/91 1649 1 02 29 18 AOS School #2 via US Bridge 0849 4/5 1049 1149 4/5/91 1707 1 02 47 18 LOS School #2 via US Bridge 0907 4/5 1107 1207 4/5/91 1829 1 04 09 19 AOS School #3 via US Bridge 1029 4/5 1229 1329 4/5/91 1845 1 04 25 19 LOS School #3 via US Bridge 1045 4/5 1245 1345 4/5/91 2020 1 06 00 20 Begin Pre-Sleep Activity 1220 4/5 1420 1520 4/5/91 2020 1 06 00 20 AOS School #4 via SA Bridge 1220 4/5 1420 1520 4/5/91 2041 1 06 21 20 LOS School #4 via SA Bridge 1241 4/5 1441 1541 4/5/91 2320 1 09 00 22 Begin Sleep Period 1520 4/5 1720 1820 4/6/91 0720 1 17 00 27 Begin Post-Sleep Activity 2320 4/6 0120 0220 4/6/91 1020 1 20 00 29 End Post-Sleep Activity 0220 4/6 0420 0520 4/6/91 1120 1 21 00 30 GRO Grapple 0320 4/6 0520 0620 4/6/91 1130 1 21 10 30 GRO Unberth 0330 4/6 0530 0630 4/6/91 1230 1 22 10 30 GRO Solar Array Deploy 0430 4/6 0630 0730 4/6/91 1350 1 23 30 31 GRO High Gain Antenna Deploy 0550 4/6 0750 0850 4/6/91 1431 2 00 11 32 AOS FSTV w/W5RRR, KE4PT w/US Bridge 0631 4/6 0831 0931 4/6/91 1451 2 00 31 32 LOS FSTV w/W5RRR, KE4PT w/US Bridge 0651 4/6 0851 0951 4/6/91 1730 2 03 10 34 GRO Release 0930 4/6 1130 1230 4/6/91 2020 2 06 00 35 Begin Pre-Sleep Activity 1220 4/6 1420 1520 4/6/91 2320 2 09 00 37 Begin Sleep Period 1520 4/6 1720 1820 4/7/91 0720 2 17 00 42 Begin Post-Sleep Activity 2320 4/7 0020 0120 4/7/91 1020 2 20 00 44 End Post-Sleep Activity 0120 4/7 0320 0420 4/7/91 1020 2 20 00 44 Begin EVA Prep 0120 4/7 0320 0420 4/7/91 1210 2 21 50 46 Unscheduled SSTV/Packet 0310 4/7 0510 0610 4/7/91 1235 2 22 15 46 Airlock Depress/Egress 0335 4/7 0535 0635 4/7/91 1340 2 23 20 47 Unscheduled SSTV/Packet 0440 4/7 0640 0740 4/7/91 1510 3 00 50 48 Unscheduled SSTV/Packet 0610 4/7 0810 0910 4/7/91 1640 3 02 20 49 Unscheduled SSTV/Packet 0740 4/7 0940 1040 4/7/91 1850 3 04 30 50 Airlock Ingress/Repress 0950 4/7 1150 1250 4/7/91 1935 3 05 15 50 Begin Pre-Sleep Activity 1035 4/7 1235 1335 4/7/91 2235 3 08 15 52 Begin Sleep Period 1335 4/7 1535 1635 4/8/91 0535 3 15 15 57 Begin Post-Sleep Activity 2035 4/7 2235 2335 4/8/91 0835 3 18 15 59 End Post-Sleep Activity 2335 4/8 0135 0235 4/8/91 0835 3 18 15 59 Cabin repress to 14.7 PSI 2335 4/8 0135 0235 4/8/91 1314 3 22 54 62 AOS School #5 US Bridge 0414 4/8 0614 0714 4/8/91 1333 3 23 13 62 LOS School #5 US Bridge 0433 4/8 0633 0733 4/8/91 1452 4 00 32 63 AOS Backup FSTV or w/W5RRR US Bridg 0552 4/8 0752 0852 4/8/91 1512 4 00 52 63 LOS Backup FSTV or w/W5RRR US Bridg 0612 4/8 0812 0912 4/8/91 1925 4 05 05 66 Begin Pre-Sleep Activity 1025 4/8 1225 1325 4/8/91 1930 4 05 10 66 Start SAREX Stow 1030 4/8 1230 1330 4/8/91 2000 4 05 40 66 Finish SAREX Stow 1100 4/8 1300 1400 4/8/91 2225 4 08 05 68 Begin Sleep Period 1325 4/8 1525 1625 4/9/91 0625 4 16 05 73 Begin Post-Sleep Activity 2125 4/8 2325 0025 4/9/91 0925 4 19 05 75 End Post-Sleep Activity 0025 4/9 0225 0325 4/9/91 1325 4 23 05 77 Deorbit Burn 0425 4/9 0625 0725 4/9/91 1430 5 00 10 78 EDW Landing 0530 4/9 0730 0830 ** PT (Pacific Time), CT (Central Time) and ET (Eastern Time) starts as stan- dard time then changes to daylight savings time on April 7, 0200 local time. ============================================================ ### -- Gary Morris Internet: garym@telesoft.com Lockheed, Houston, Texas UUCP: lobster!avocado!gamorris N5QWC/W5RRR Phone: +1 713 283 5195 ------------------------------ Date: 22 Mar 91 21:19:59 GMT From: swrinde!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!hpb.cis.pitt.edu!hpb@ucsd.edu Subject: What is a "Sideswiper" CW Key? To: info-hams@ucsd.edu During lunch today I made a CW contact on 20 M with a ham holding a very old 1x2 callsign. He asked me how his "sideswiper" sounded because he had not used it lately. I responded by telling him that his bug sounded better than some CW keyers (I like to humor the Old Timers). That was a big mistake. He spent the next 10 minutes attempting to explain to me exactly what a sideswiper was and how it was not a bug. He said that it was 70 years old and was originally installed on a 2KW spark transmitter on a ship that sailed the Atlantic Ocean. The explination was not terribly clear. So my question to the net is "What exactly is a sideswiper?" 73, Harry Bloomberg WA3TBL hpb@hpb.cis.pitt.edu or hpb@vms.cis.pitt.edu or hpb@unix.cis.pitt.edu ------------------------------ Date: 22 Mar 91 18:11:49 GMT From: swrinde!zaphod.mps.ohio-state.edu!lavaca.uh.edu!menudo.uh.edu!nuchat!buster!garym@ucsd.edu To: info-hams@ucsd.edu References <1991Mar9.155044.17982@ucselx.sdsu.edu>, <3355@phred.UUCP>, <1991Mar22.011642.14076@buster.stafford.tx.us> Subject : Re: Sts-37 garym@buster.stafford.tx.us (Gary A. Morris) writes: >>In article <1991Mar9.155044.17982@ucselx.sdsu.edu> g-patena@steer.sdsu.edu (Kevin M. Savetz Esq.) writes: >>>Hello. I need to know when STS-37 will fly. >Current schedule is April 4, 1991, with launch at 14:20 UCT (0920 EST). >Here are the launch windows starting with the April 4: > Launch Window > Open Close (UCT) >Apr 4: 1420 - 1650 >Apr 5: 1418 - 1648 >Apr 6: 1417 - 1647 >Apr 7: 1416 - 1646 >Apr 8: 1414 - 1644 >Apr 9: 1413 - 1643 I knew it would change as soon as I posted that article :-) As of today (3/22/91) mission planners are using April 6, 1417 UTC as the target launch time. If things go well it could move up to the 5th. Final date won't be set until the Flight Readiness Review next week, and as usual, until the SRBs are lit we won't know the real launch time. There has been a slight change in the planned trajectory, yielding a slightly different orbit, so here is a new set of Keplerians: STS-37 1 00037U 91 96.64650463 .00023000 17236-3 0 53 2 00037 28.4678 237.9647 0006745 281.2842 78.7272 15.37848888 29 Satellite: STS-37 Epoch time: 91096.64650463 Element set: JSC-005 Inclination: 28.4678 deg Space Shuttle Flight STS-37 RA of node: 237.9647 deg Keplerian Elements Eccentricity: .0006745 from pre-launch post OMS-2 vector Arg of perigee: 281.2842 deg Launch: 06 APR 91 14:17 utc Mean anomaly: 78.7272 deg Mean motion: 15.37848888 rev/day W5RRR Decay rate: 2.30E-04 rev/day^2 NASA Johnson Space Center Epoch rev: 2 -- Gary Morris - N5QWC/W5RRR Internet: garym@crash.cts.com Lockheed UUCP: moray!avocado!garym (home) Houston, Texas Phone: +1 713 283 5195 ------------------------------ End of Info-Hams Digest ******************************