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* AMSAT NA News Service Bulletins *
* NEWS276 03Oct87 *
* [ Copyright 1987 by AMSAT NA, The Radio Amateur Satellite Corporation. ] *
* [ Permission is granted for unlimited redistribution by electronic or ] *
* [ other means provided credit is given to AMSAT NA News Service (ANS). ] *
* [ Edited for AMSAT NA by W0RPK ] *
* [ (N)=New story; (U)=Updated story; (R)=Reprieved story ] *
* [ This edition was forwarded by the W0RPK-AMSAT Bulletin Board System ] *
* [ operating on 515-961-3325 24-hours Ralph Wallio, W0RPK SYSOP ] *
* [ Uploaded to Barf-80 by N8HSP ] *
******************************************************************************
Headlines:
1.(N) Mexico attempts to reallocate 430-440 MHz from ham radio
2.(N) W3IWI organizing moonbounce effort from 140' NRAO dish
3.(N) 1987 AMSAT-NA annual meeting and space symposium information
4.(R) U.S. Groups To Participate In Moscow Space Future Forum
5.(R) Launch Success Catalyzes Phase 3C Launch Campaign
6.(U) FO-12 Schedule Reinstated
7.(R) NASA Seems Likely To Win Space Station Funding
8.(N) N4HY QUIKTRAK V3.1 now ready for distribution
9.(U) Short Bursts
News In Brief:
1. In a surprise move at the WARC, Mexico is attempting to reallocate the
430-440 MHz amateur radio frequency spectrum to land mobile use.
2. Tom Clark, W3IWI, and others will put the National Radio Astronomy
Observatory on-the-air during the October 17/18 ARRL moonbounce contest.
3. A tentative schedule and other information is now available for the
1987 AMSAT-NA annual meeting and space symposium in Southfield, Michigan.
4. A "Space Future Forum" will be held in Moscow on the 30th Anniversary of
Sputnik's launch. NASA and AMSAT have been invited to the meeting.
5. AMSAT's Phase 3C launch campaign is off and running. Informative articles,
brochures and a launch insurance fund raising effort are all included.
6. FO-12 is back on schedule and performing well.
7. Despite opposition from a powerful U.S. Senator, it appears NASA will
prevail in its Space Station budget battle.
8. Dr. Bob McGwier, N4HY, has released version 3.1 of his latest highly
acclaimed QUIKTRAK program for IBM-PC type computers.
******************************************************************************
1. (N) Mexico attempts to reallocate 430-440 MHz from ham radio
In a startling turn of events at the Geneva-based World Administrative Radio
Conference (WARC), the government of Mexico moved swiftly to request
reassignment the 430-440 MHz band from Amateurs to commercial land mobile use
in that country. The move surfaced late on Friday afternoon, September 25,
according to AMSAT's Jan King who is part of the U.S. delegation to the WARC.
The timing of the resolution seemed designed to catch delegates from other
nations off guard as the weekend closed in.
The move by Mexico to usurp Amateur operation in the weak signal and satellite
portion of the band would devastate Mexican 70 cm operation according to
King. Furthermore, he said, there is a real possibility of serious
interference to satellite uplinks from mobile radio users in the
435 to 438 MHz range.
According to AMSAT Mexico President David Liberman, XE1TU, this situation has
already been fought in the Mexican courts for some time. Now, he says, the
proponents of the Mexican mobile radio initiative, including powerful economic
elements and the former Mexican President, are attempting to go the WARC
route to codify their demands.
From Geneva, Jan King reports other Central and South America countries are
watching the issue with considerable interest since many would like to avail
themselves of the valuable 70 cm turf. The band is allocated to radiolocation
(Primary) and Amateur (Secondary) in IARU Region 2.
IARU Secretary David Sumner, K1ZZ, advises that the IARU considers this
matter very serious and has marshalled all available Region 2 forces against
the threat. According to King, the U.S. delegation is firmly against the
Mexican proposal. The problem, he says, is that some of the smaller nations
may side with Mexico on this issue in return for reciprocal support in other
deals. The main attraction of 70 cm to Mexico and other nations is the
ready-made supply of ham radio 70 cm radios.
As of October 1st, Jan King reports from Geneva that a potential compromise
has been arrived at with the Mexicans regarding the protection of the
435-438 MHz Amateur Satellite Service region.
The Mexican proposal has come up once as a footnote on the floor, and will be
up again for further consideration. At that time other 3rd world countries
(especially Central and South American) may join-in with the Mexican proposal.
If the item comes to the floor again, Jan said that the IARU would then jump
in to the matter to provide necessary input. If this proposal does go
through, amateurs in affected countries may well loose their privileges in
the 430-440 MHz region (with the possible exception of the 435-438 MHz Amateur
Satellite Service segment).
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2.(N) W3IWI organizing moonbounce effort from 140' NRAO dish
Dr. Tom Clark, W3IWI, wishes to inform all interested parties that an
interesting moonbounce (EME) expedition has been scheduled to coincide with
the 17/18 October ARRL international moonbounce contest. This activity will
involve use of the 140' diameter radio telescope at the National Radio
Astronomy Observatory (NRAO) in Greenbank, West Virginia. Plans call for
activity on 3 bands -- 432, 1296 and 2304 MHz. The 140' radio telescope is
located at 79.83 deg. longitude and 38.44 deg. latitude, corresponding to
grid designator FM08ck.
The operating schedule calls for being QRV during the entire time the moon is
above the horizon -- about 13 hours per day. Available moon windows from
Greenbank are 06:40-20:00z on the 17th and 07:40-20:30z on the 18th (plus an
optional window from 08:40-12:00z on the 19th if their stamina holds out and
if there is anyone left to work).
Nominal operating frequencies will be 432.025, 1296.025 and 2304.010 MHz.
Operation on the 432 and 1296 MHz frequencies can be concurrent since the
dish antenna feeds are concentric (except that transmitting on one band will
overload the other receiver). The 2304 MHz feed is off-axis, so the antenna
must be re-pointed to QSY to that band. They currently plan to concentrate on
432/1296 the first day (Oct.17) and schedule 2304 MHz during the second day.
Due to telescope constraints they have decided to use all solid-state
transmitters. The power amplifier for 432 MHz will run about 140 watts
output, while the 1296 and 2304 amplifiers will run about 100 watts output.
These will be housed along with the GaAsFET receiver preamps in a large
(.7m x .7m x 1.5m) box located at the focus of the dish; this minimizes
transmission line loss problems. The feeds for all three frequencies support
circular polarization, and the polarization sense will be remotely selected
from the control room. On 432 MHz they will use a Kenwood TS811 as the
exciter, while 1296 and 2304 will share a TS711 exciter to drive the
respective transmitting converters. On the receive side, the 711/811 all
mode radios will be augmented by a TS940.
They expect to be able to QSO stations that have EME capability without the
need for schedules on 432 and 1296. They request that stations working them
'random' not transmit on their frequency -- THEY PREFER TO TUNE FOR YOU!
Given the gain of the 140' dish, it should be possible for them to work a well-
equipped non-EME station on 432 and 1296. If you have one or two yagis, can
generate 2-3 kw EIRP, and have a good GaAsFET preamplifier, there is a chance
for a QSO. In order to QSO such stations, they expect to resort to schedules
and will use the '432 standard' EME format. To make a sked, contact Jay, K5JL
on the weekend EME net (Saturdays and Sundays at 16:00z on 14.345) or by phone
(405-373-3758). When keeping skeds or calling CQ, they will follow the
standard 5 minute EME sequence, and will transmit during the first 2.5 minute
window. During the weekend you can also request a sked by telephoning them
at the 140' telescope (304-456-2347). They anticipate that all 2304 MHz
activity will be done with skeds.
After the moon sets each night, they will be available to try long-haul tropo
skeds on any of the three bands. Due to telescope limitations, they can only
point to the horizon at southerly azimuths in the range 80 to 280 degrees.
Again contact K5JL or telephone for skeds. Because the beam of the 140'
telescope ranges from 1.1 degrees (at 432 MHz) to 0.24 degrees (at 2304),
they will need to know your latitude and longitude quite accurately to know
where to point the antenna.
During the weekend they anticipate that there will be many hours during which
there is nobody new to work. During these time they will be trying some
'exotic' tests. They expect to be QRV for packet tests with several modems
(300 baud with 200 & 600 Hz FSK, 1200 baud with 1000 Hz FSK, 1200 baud PSK).
They also anticipate trying some DSP (digital signal processing) tests using
techniques being developed by W3IWI and N4HY.
This extravaganza is a joint effort of a number of people from all over North
America (NJ, MD, VA, WV, OK, KS and Manitoba): The feeds for all 3 bands and
the 2304 MHz hardware are being provided by VE4MA. WB0DRL is providing the
1296 RF hardware and W3IWI the 432 hardware. The 1296 and 2304 100 watt power
amplifiers are coming from WA2FGK with help from K2TKN. K5JL is coordinating
on-the-air schedules. Telescope activities are being handled by engineers and
radio astronomers from NRAO (AA4TJ, K2AOE, N4FWA, WB3DZC, WA4ZJO and others)
and from NASA/Goddard (W3IWI and W8MIF).
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
3.(N) 1987 AMSAT-NA Annual meeting and space symposium information
Larry Koziel, K8MU, has released a tentative schedule of events at the
AMSAT-NA 1987 SPACE SYMPOSIUM to be held November 6-8 at the Southfield
Hilton Hotel in Southfield, Michigan. This two-track schedule of educational
and ham radio topics includes:
Friday November 6, 1987
Socialize at AMSAT's Hospitality Suite, Cash bar, 7:00 PM
Saturday November 7, 1987
Morning Plenary Session, 8:00 AM, Ballroom CD
Welcome and Introductory Remarks
"Spacecraft Technology Trends in the Amateur Satellite
Service" Dick Jansson WD4FAB
"NUSAT: A Student Satellite Project of Weber State
College" William G. Clapp
A Proposal for Inclusion of Amateur Radio on the Space
Station William Tynan W3XO
Morning Amateur Radio Session, 10:00 AM, Ballroom CD
"Two-way Fast Scan Television Proposal for the Space
Shuttle" Andy Bachler N9AB
"Amateur Radio Satellite Marketing During National Science
and Technology Week" Robert J. Diersing N5AHD
"QRP EME" Ray Soifer W2RS
"Digital Signal Processing Modems"
Bob Mc Gwier N4HY
Morning Education Session, 10:00 AM, Ballroom A
"An Introduction to Amateur Radio"
Jan Jellema W8SWN
"Simple Techniques for Determining Satellite Visual
Observation Windows" Vern Riportella WA2LQQ
"Classroom Applications of Satellites in the UK"
Craig Underwood
TBD Dr. Tony England W0ORE
Lunch 12:00 Noon, Ballroom B
Afternoon Amateur Radio Session, 1:00 PM, Ballroom CD
"Spread Spectrum Ranging and Non-Linear Filtering for Orbit
Determination" Bob McGwier N4HY
Phil Karn KA9Q
"Doppler Correction Techniques and Their Relation to QRM"
Vern Riportella WA2LQQ
"Fluid Momentum Attitude Control for Phase IV"
Bob McGwier N4HY
Steve Robinson W2FPY
Gordon Hardman KE3D
Brent Helleckson
Jeff Zerr
Dave Cowdin WD0HHU
Afternoon Education Session, 1:00 PM, Ballroom A
"70,000 Feet over Ohio, An Amateur Radio Balloon
Experiment" Richard Ensign
Bill Brown WD8ELK
"The University of Surrey Amateur Scientific Satellites"
Richard Ensign
Teaching Science and Social Science with Amateur Radio
Douglas L. Smith
"Project SPARC at Northeast High - Two Decades of High
School Space Science" Howard I. Ziserman WA3GOV
Afternoon Plenary Session, 3:00 PM, Ballroom A
AMSAT/National Space Society Space Education Network
K.O. Learner, II K9PVW
Greg Barr
"Building WEFAX Groundstations: A Practical Approach"
Jeff Wallach N5ITU
Phase 4 Status Report Jan King W3GEY
Dick Jansson WD4FAB
Entertainment/Social Hour/Cash Bar, 5:00 PM, Ballroom A
Banquet 6:30, Ballroom B
Keynote Speaker Dr. Tony England W0ORE
Annual Meeting
Sunday November 8, 9:00
Reserved for Additional Presentations
Board of Directors Meeting
Note: Check-in and registration will open at 7:30 AM
Saturday morning. Exhibits may be open from 7:30 AM until
6:00 PM.
Hotel reservations should be directed to the Southfield Hilton at
313-557-4800. Mention AMSAT for symposium rates of $45-single and
$48-double.
Discount airfares are available through NORTHWEST AIRLINES by calling
NORTHWEST Meeting Services at 800-328-1111 (in Minnesota 800-272-1408)
(in Canada 800-378-7747) or local travel agents and by mentioning
MEETING CODE 12738. This could yield ticket prices 5% lower then
NORTHWEST's lowest rate or 35% less than their regular coach fare.
The symposium registration fee is $15. The Saturday luncheon cost is
$12. Saturday's evening banquet fee is $22. Send registration fees to
AMSAT, PO Box 1091, Ann Arbor, MI 48106-1091. Include information
as to arriving date, time and flight if transportation is desired to the
hotel. A talk-in service will be available on the 147.16 (+600) repeater.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
4.(R) U.S. Groups To Participate In Moscow Space Future Forum
A combination of official U.S. government representatives, private groups and
individual citizens will be among many international delegations attending a
Space Future Forum in Moscow October 4 and 5. The meeting is being sponsored
by the Space Research Institute of the USSR.
A team of at least 6 senior NASA managers, scientists and astronauts will
attend the forum in Moscow according to informed sources. The meeting will be
held at the Space Research Institute in Moscow and is timed to coincide with
the 30th Anniversary of the launch of the first artificial earth satellite,
Sputnik, October 4.
U.S. officials have been reluctant to openly and strongly support the meeting.
Some have privately remarked they see the potential for considerable Soviet
gloating and propagandizing in the offing. Others said they fear the timing
of the event will further emphasize the continuing disparity in space launch
capabilities between the U.S. and the USSR. (The U.S. launch program, flat on
its back in 1986, is now on the mend, although the Soviets continue to
out-launch the rest of the world by a ten-to-one ratio.) Still others have
voiced the view that with several joint U.S.-Soviet space science programs
already negotiated, the October meeting could set the stage for still further
inroads.
NASA has apparently opted to support the meeting at a senior level and avoid
what would otherwise be seen as an overt snub. Academician Roald Sagdeev,
Director of the Space Research Institute, was at NASA's Washington
Headquarters a couple of weeks ago and is thought to have personally invited
NASA Administrator Dr. James Fletcher to attend the Moscow meeting. Although
Dr. Fletcher, will not attend, the attendees will include several individuals
on Fletcher's senior staff.
As one of several private groups attending from the U.S., AMSAT has been
invited to participate in support of a project called SatelLife. According to
Dr. Malcolm Maclure of the Harvard University School of Public Health,
SatelLife is a program originated by Harvard Medical School's Dr. Bernard
Lown, co-holder of the 1985 Nobel Peace Prize, to advance space
telecommunications use in health-information-related projects. Dr. Lown is a
Professor of Cardiology at the Harvard Medical School. AMSAT is providing
technical guidance based on its familiarity with small satellite capabilities
and inexpensive ground terminals. As with similar programs, SatelLife seeks a
low cost approach to humanitarian telecommunications commensurate with its
limited resources.
In addition to supporting the SatelLife program, AMSAT leaders are exploring
the possibility of future cooperative Amateur Satellite projects involving
some coalition of teams from America and Europe including the Soviets. Some
AMSAT officials see the upcoming Moscow meeting as a window through which to
explore possible implications of "Glasnost" on Amateur Radio. "Glasnost" is
Russian for "openness", a term applied to a purported policy of General
Secretary Gorbachov towards general relaxation of traditional Soviet
secretiveness.
According to AMSAT President WA2LQQ, (now is Moscow) "Amateur Radio
traditionally and fundamentally seeks to remain apolitical. We'll see where
this initiative goes".
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
5.(R) Launch Success Catalyzes Phase 3C Launch Campaign
With the successful launch of the Ariane V-19 mission on September 16, AMSAT's
Phase 3C satellite launch campaign is under way. If all goes according to
plan, AMSAT's newest, biggest and most powerful satellite ever will be lofted
into a Molniya elliptical orbit within 6 months. The launch campaign features
Phase 3C familiarization articles and information brochures as well as a
launch insurance fund raising program.
Phase 3C contains four separate transponders including two modes never before
used: Mode S with 70 cm uplink and 13 cm downlink and RUDAK, the packet radio
experiment developed by the Munich contingent of AMSAT DL. In addition, the
new Mode JL will be aboard Phase 3C. Mode JL combines 2 meter and 24 cm
uplinks to generate a 70 cm downlink. The fourth Phase 3C transponder is a
Mode B device very similar to AO-10's Mode B. Preliminary frequencies for
all four Phase 3C transponders are found in ASR #149.
AMSAT NA will join with its Phase 3C collaborator, AMSAT DL, to purchase
launch insurance for Phase 3C. The insurance would cover the loss of the
spacecraft if the worst should happen. AMSAT NA has set $10,000 as its Launch
Insurance Fund goal and is inviting donations to the program.
Every donation of $10 or more to the P3C Insurance Fund will be acknowledged
with a special Phase 3C QSL card and by having the donor's name and callsign
printed in Amateur Satellite Report. Donors of $30 or more will receive a
handsome AMSAT certificate suitable for framing and have their name and
callsign in ASR. The certificate will feature a special "ghosted" image of
Phase 3C overprinted with the donor's name and callsign. Donors of $100 or
more will receive the certificate, the QSL card and, if they wish, have their
photograph appear in ASR. Donors of $1000 or more will get their choice of a
complete, leather-bound set of 7 years of ASR or a special recognition plaque
from AMSAT and in addition, will have their photograph prominently featured in
ASR if they desire.
Mail your donations to: Phase 3C Insurance Fund, AMSAT, P.O. Box 27,
Washington, D.C. 20044, or call, 301-589-6062. Donations may be put on your
major credit card. AMSAT is a non-profit scientific, educational corporation
and is treated as a charitable organization for tax purposes. Your donation
may be tax-deductible.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
6.(R) FO-12 Schedule Reinstated
Fuji OSCAR 12 has returned to its previously announced schedule and the
schedule is being closely followed by FO-12 controllers. The following
operating schedule was recently released by JARL:
FO-12 will operate:
From To
Date Time Date Time Mode
============================
October 03 03:14 05 01:26 JA
07 01:39 08 02:47 JD
09 01:53 10 01:00 JD
11 17:00 12 16:07 JD
14 01:26 15 00:32 JD
----------------------------------------------------------------------------
[Following suitable primarily for BBS.]
16 00:?6 17 23:52 JD
20 12:58 21 14:05 JA
22 13:11 23 12:18 JA
24 13:25 26 11:37 JA
28 11:50 28 13:45 JD Note 1
28 13:52 29 12:58 JD
31 11:10 01 10:16 JD
November 02 11:23 03 10:30 JD
04 11:37 05 10:43 JD
07 08:55 08 10:02 JD
The transponders will be off at others times. The schedule may be changed at
any time due to unexpected power situations.
Note 1: On October 28 from 11:50 through 13:45 UTC a special telemetry
software package will be loaded to permit telemetry transmission every 2
seconds instead of every minute. The mailbox will be unavailable during this
period but the digipeater will be operational. Telemetry reports will be
appreciated. Send to JARL via the FO-12 mailbox.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
7.(R) NASA Seems Likely To Win Space Station Funding
The National Aeronautics & Space Administration should win its battle to fund
the space station project in the 1988 budget, even though Sen. William
Proxmire (D-Wis.) is still trying to rally support for his plan to kill the
program. The senator has opposed the space shuttle and other high-profile
space programs in the past without result, and an aide to the HUD-Independent
Agencies Subcommittee of the Senate Appropriations Committee, which Proxmire
chairs, concedes this fight is likely to be another losing effort because the
space station enjoys bipartisan support. Proxmire maintains that the $767
million earmarked for the space station in the 1988 budget would go a long way
toward cutting the federal deficit while leaving money for other space-science
projects. He calls the space station "ill-conceived" and says it "has no
mission." NASA calls the space station "essential."
Senator William Proxmire is pushing for a privately funded alternative to the
space station - the Industrial Space Facility - as a replacement for the
long-term expense of NASA's project. A team made up of Boeing, Lockheed,
Westinghouse, and Houston's Space Industries is developing the "man-tended"
research platform, and could deploy it with a single space shuttle mission as
early as 1990 - five to seven years before NASA's space station is operable.
The consortium will pay for construction and launch, and it plans to lease the
facility for research - but like NASA, it sees its program as an adjunct to
the space station. Comparing the two, says a NASA spokesman, "is like
comparing a rowboat to the Queen Mary."
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
8.(N) N4HY QUIKTRAK V3.1 now ready for distribution
QUIKTRAK V3.1 has now been "fully tested" and is ready for distribution.
SIMCGA, a public domain utility, is included so QUIKTRAK V3.1 can be used with
Hercules boards while you have the TSR SIMCGA running. Thanks to Hasan N0AN.
Support for the KLM/MIRAGE and ARRL antenna controllers have been fully tested.
Thanks to Dave Filmer, WB9QPG. This support allows you to control antennas
in real time or load a table in the controller so that you may go off and do
other things with the computer while control goes on in background.
You do not need any of the TSR's for com-port support for the antenna
controller but both MB-BIOS and COM-BIOS are included as some problem with
the League controller and MB-BIOS has cropped up. You need these for GATHER
support when realtime tracking.
The New functions in QUIKTRAK V3.1 are:
(1) In Realtime-1 Sat graphics mode: You may now do a groundtrack and
control the time between dots. Pause is implemented. The sun position
is indicated by a "cross hair" as well as the terminator now allows one
to be able to tell daylight from dark.
(2) A totally new function under multisat-1 observer. A graphics mode
where ALL the satellites are displayed at once on the standard zoom
1 map. The satellite is modified on the screen so as to easily
identify which satellite is having its numbers displayed and a pause
function is also available.
(3) Fully tested support for Hercules cards via SIMCGA.
(4) Fully tested support for the KLM and ARRL controllers.
(5) WB5IPM controller support has been added and is available
via the customization process (see QEX May and June, 1987).
(6) A new proprietary controller that is being done for ENCOMM
by KB2CST with aid from N4HY has the same functionality as
the League/KLM controller and is configured as a bus board for
the IBM PC. The price will be considerably less than the
current KENPRO controller which ENCOMM is having trouble
getting from Japan. This will come with a slew of TSR's
to give you pop up rotor control panels on your screen
and table loaded "offline" support for the antennas.
(7) Minor annoyances fixed: the program now alerts you to the fact
that you have G(ather) turned on in the tabular realtime mode,
and active antenna control in both tabular and graphics realtime
modes. A bug that clobbered the interrupt driven I/O support
has been fixed.
All unsold copies of QUIKTRAK 3.0 should be returned to Keith, W5IU, for
remake. There will be an extensive revision to the manual.
Update instructions for V3.0 onwers is included in their manual.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
9.(U) Short Bursts
AO-10 remains in hibernation. It has been off since power availability fell
below required levels. Engineers estimate it will be late autumn when power
levels return to required levels. Restoration of AO-10 Mode B operation is
anticipated on or about December 1.
***
The AMSAT-NA Technical Journal made its debut last July. Now the second issue
is being assembled for publication before the end of 1987 and editor Bob
Diersing has issued a call for papers. He says there is a particular need for
articles related to the Phase 4 project. Complete details on this call for
papers appears in ASR #159 which is in the mail.
***
AMSAT now has self-adhesive decals for Sustaining Life Members and regular
AMSAT members. These handsome decals make a proud addition to your QSL card.
Inquire at AMSAT HQ.
***
The new ARRL video "The New World of Amateur Radio" produced by Roy Neal,
K6DUE, will be available from the AMSAT-NA Video Tape Library shortly.
Contact Tom Larson, N1CHM, for further details.
***
Dick Jansson, WD4FAB, remarks that many operators are using far too much
uplink power on FO-12 because they can't hear their own downlink. This can
be due, he concludes to a strong polarization sense shift from Right Hand
Circular Polarization (RHCP) to Left Hand Circular Polarization (LHCP).
Thus, operators should have the ability to switch between the two to be
successful and consistent with FO-12.
*****************************************************************************