WEFAX GOES Vendors last edited 5 September 2012

Table of Contents

NOAA links

OSDPD - Office of Satellite Data Processing and Distribution

University ground systems for GOES

Florida State University

FSU offers on-line classes.

Colorado State's Earth Station

SSEC at the University of Wisconsin

GVAR Systems

These vendors provide components and/or complete reception systems for GOES high-resolution (GVAR) satellite data, and usually receivers for other satellites, too. This list is provided as a public service, not as an endorsement of any one.


Apogee Solutions
attn: Torben Nielsen
6750 Hawaii Kai Drive, Suite 105
Honolulu, HI 96825


Antenna Technology Communications, Inc.
1128 E. Greenway
Mesa, AZ 85203
FAX 602-898-7667

289 Atlas Street
Simpson, PA 18407
FAX 717-282-3258

Direct Met

Direct Met
Attn: Ron Boyd
Vice President, Commercial Services
Global Science and Technology
9111 Edmonston Road, Suite 202
Greenbelt, MD 20770
301-313-0164 x209
FAX 301-313-0376


GTI Electronics
attn:  George T. Isleib
1444 Hamilton Blvd Suite 601
Allentown, Pa 18102


MacDonald Dettwiler
attn: Alan Vlemmiks
13800 Commerce Parkway
Richmond, BC, Canada  V6V 2J3
fax: 604-278-2117


Morcom International, Inc.
14210-B Sullyfield Circle
Chantilly, Virginia 20151
Phone: (703)263-9305
Fax: (703)263-9308
Email: info@morcom.com
Web: www.morcom.com


Omitron, Inc.
6411 Ivy Lane, Suite 600
Greenbelt, MD 20770


Quorum Communications, Inc.
8304 Esters Blvd
Suite 850
Irving, TX 75063
Phone: (800) 982-9614 in USA and Canada
Phone: (972) 915-0256 from anywhere
FAX: (972) 915-0270


SeaSpace Corporation
9240 Trade Place, Suite 100
San Diego, CA  92126
fax: 619-578-3625


attn: Leslie Davis, Marketing Director
1725 Signal Point Road
Charleston, SC 29412


Software Systems Consulting
615 S. El Camino Real
San Clemente, CA  92672
fax: 714-498-0568

Systems West

Systems West, Inc.
3239 Imjin Road
Marina, CA 93933-5109
Fax: 408-582-1056 


Northern Video Graphics
attn: Russ Green
Business and Technology Center
511 Eleventh Avenue, So., Box 92
Minneapolis, MN 55415 USA

(NOTE: took over from WEST,
Western Engineering and Satellite Technology,
when Steve Eigsti died)


VAS-Data Acquisition Systems, Inc.
attn: Roger Beale
4014 Bethel Church Rd.
Evington, VA 24550-3962
Tel/FAX: (804)525-5202

NOAA support

Subject: GOES System Vendors
From: jhawkins@nesdis.noaa.gov (Jamie Hawkins)
Date: Tue, 12 Dec 1995 11:05:52 +0500

A message to all GOES direct-readout (GVAR or WEFAX) systems vendors:

The GOES Program office at NOAA maintains a list of all known GOES GVAR and
WEFAX receive system vendors.  We'd like to update our list with any new
vendors and make sure all current entries are accurate.  We expect to be
asked to distribute such a list at the upcoming American Meteorological
Society annual convention in January.

Please send us via email your complete company contact name and address,
including phone and email, along with a brief description of the type of
GOES system you offer. If you would like, you may send detailed systems
descriptions, brochures, or price lists via US mail to the address given
below.  This information will be included in our general files, but will not
be distributed; anyone who contacts NOAA requesting information on GOES
systems will be given our vendor mailing list only.

Thanks for your input.  Please use the email address below.

Jamison Hawkins
GOES Product Manager
FB4, Room 3010
Suitland, MD  20746


Notes on GVAR data reception

Notes by Quorum

Subject: Re: GOES ground station antenna size
From: allan@qcom.com (Allan B. Bundens)
Date: Sat, 18 Nov 1995 17:01:25 -0600

NOTE: To fully disclose my position, I am not a casual observer.  I am an
owner of Quorum Communications, a manufacturer of GVAR equipment.

There are many factors that influence the quality of GVAR reception from the
GOES satellites, only one of which is the size of the dish.  The end result
of "specklies" or "dirty lines" can be a result of poor performance in any
of the system components.

First, antenna gain is very important and a 3 meter dish is capable of
providing better than 10E-8 BER with a good feed / downconverter and
reception system.  What is generally overlooked is that for any given
antenna to provide the best performance, the feed must be designed to
properly illuminate the dish for high efficiency.  Poorly matched antenna /
feed combinations will have low efficiency and exibit sidelobes that can
cause interference from other satellites.

Next in line, the downconverter or as is usually the case for GVAR systems,
integrated feed downconverter, must have a low noise figure.  Typical units
available today will have noise figures of about 0.8dB.  Better units with
noise figures of 0.5dB or less will allow a smaller antenna.  The
downconverter should also provide enough gain to overcome the signal
attenuation in the IF cable and still keep the system noise figure low.  It
is also important that the downconverter have 40 to 60 dB of image rejection.

Next, the receiver quality is very important.  GVAR data is transmitted
using BPSK and most receiver implementations use some form of costas-loop to
phaselock to the incoming carrier and decode the BPSK data.  Poor design
here can cause the detector to unlock generating bad data.  BPSK receivers
are in general easy to build but hard to make work reliably.  The receiver
should also contain an IF filter of the correct bandwidth.  The wefax signal
on GOES 8 is very strong and can interfere with the GVAR reception if the
receiver does not have a good filter at the GVAR frequency.  Also, the
receiver noise figure should be low enough that the system noise figure is low.

Next, the bit sync needs to lock up to the raw data stream and output
decoded clock and data.  While it is relatively easy to make a GVAR bitsync
that operates well under low noise conditions, it's a bit more difficult to
make one operate well under moderate to high noise conditions.  You should
look for a bitsync that provides performance within 1dB of theoretical.
Obviously, a poor bitsync design will output bad data.

Next, the frame formatter needs to lock up to the GVAR PN sequence and make
framed data available to the computer.  Again, it's easy to make one of
these that works well under good conditions, but it's much harder to get
good performance in the presence of noisy data.

Lastly, you need to pass the data to the computer without dropping any.
Again, there is an opportunity to drop data with a poor design here.

So, to conclude, you "could" get perfect data with a 3 meter dish if the
rest of your system was designed well and functioning correctly.  I can't
make any specific recommendations other than to suggest that you talk to
your system vendor for specific performance specs.

I am the president of Quorum Communications.  Our company manufactures
components that are used by a number of system suppliers in their GVAR
products, so my comments may be tainted with the perspective of any
manufacturer.  I can tell you that we use a Winguard 10' dish at our site
with a Quorum Integrated Feed / Downconverter (noise figure 0.8dB), Quorum
QC-5011 BPSK Receiver and Quorum Bitsync / Frame Formatter.  Our receiver /
bitsync has been designed and tested to provide performance within 1dB of
theoretical.  Our frame formatter uses a hardware correlator capable of
reliable operation with bit error rates as low as 3x10E-2 and we have a
built in bit error rate tester thats checks the 10000+ bit correlation
sequence against a known correct copy.

Our BER performance with this system varies from a low of 1x10E-9 to better
than 1x10E-11.  We suspect that this closely follows the BER of the uplink
system.  There are no sparklies, dropped lines or frame unlocks under any
conditions, even rapid scan mode.  We receive ALL of the data transmitted by
the satellite and transfer ALL of it across the bus to be written to hard
disk.  Our in house system uses a Pentium 90 running Windows NT.

While we would not recommend it, performance with a 6' dish is around 1x10E-6.

I hope this provides some help.

Allan Bundens
=    Allan B. Bundens                    Quorum Communications, Inc.      =
=    allan@qcom.com                      8304 Esters Blvd - Suite 850     =
=    (214) 915-0256                      Irving, Texas 75063 USA          =
=    (214) 915-0270 FAX                  http://www.qcom.com              =
=    (214) 915-0346 BBS                  ftp://ftp.qcom.com               =

Notes by GTI

Subject:   Ground Station Equipment
From:      George T. Isleib gtielect@ptd.net http: //www.gtielectronics.com
Date:       June 27, 2000

NOTE:  George T. Isleib is the Vice President of GTI Electronics and director of Technical Operations. We
 manufacture GVAR and HRPT Ground stations.  The company is owned by Carol L. Isleib, Pres.

As with any complex system, there are many influencing factors that will govern the final results of
what can or cannot be expected from a GVAR ground station only one of which is the dish.   Any one of
several  items including dish size, noise figure, filtering, cable length, receiver, formatter card etc., can produce
unwanted results that include missed blocks, missing lines, sparklies etc., to name a few.

A typical dish size at this point in time is typically a 10 foot dish, however to clarify this a bit further, 
it is only true if the following is true as well.  The 10 foot dish must be fully illuminated and
the noise figure of the feed must be below 1 dB.  A patch feed does not actually fully illuminate the
dish regardless of its size and at high latitudes such as those above 40 degrees may not give the de-
sired results.  A dish using a feed specifically designed for the F/D of the dish and designed to fully
illuminate it with the proper noise figure will produce results that shows a 10 foot under these conditons
will outperform a 12 foot dish using a patch feed.

The integrated feed/downconverter should be constructed that both combline and bandpass filters
are located at the input stage of the pre-amp.  The downconverted GVAR signal should be amplified so
that the gain will allow the end user to locate the dish hundreds of feet from the receiver but the noise
figure of the pre-amp must be below 1 dB if you are to use a 10 foot dish with the properly designed
electronics that can fully illuminate the dish.  It should also have a bandpass filter at the downconverted
frequency to further eliminate extraneous interference.  The downconverter should have more than 60 dB of
image rejection as well.

The receiver decoding is extremely important to decode the BPSK data stream.  The favorite,
the Costas Loop configuration,  is a superb circuit for phaselocking to the GVAR data stream and decoding
the BPSK data.  Currently BPSK Costal Loop systems are very simple to construct and are one of the
most reliable to date.  By utilizing the proper filtering, bandpassing, and properly designed loop
circuitry, it can reliable produce data that approaches the theoretical maximum under the most severe
weather conditions.

GTI Electronics is located at 40 degrees N latitude.  We use an integrated feed/downconverter with
a true noise figure of .78 dB with a conversion gain of 68 dB and a 10 foot dish.  Our receiver/bitsync has given 
us 1 missing block in a 24 hour period consistently.  To put this in perspective, the GVAR data stream produces 
about 20 Gbytes of data in 24 hours!  The data shows no sparklies, missing lines, frame unlocking, etc., using
a typical 10 foot dish and our Feed/downconverter and bit sync card.  We use a Pentium III, 500 Mhz
computer and all data is displayed at 16 Million colors with a 256 Greyscale.  We ingest the data at the
full resolution of the satellite displaying it live as received along with the Sounder data as well.  All software 
runs under the WindowsNT platform and is multi-tasking and multi-threaded.  We have used our system on a 
7 foot dish with perfectly  usable data at our 40 degree N location with all ingesting and processing done on
a single desktop machine.

George T. Isleib, VP GTI Electronics
1709 Municipal Rd
Lehighton, PA 18235
Tel 570-386-4032
Fax 570-386-5063

WEFAX systems

Many of the vendors listed above also supply low-cost WEFAX receivers. Other vendors (below) specialize in WEFAX and in exchanging information about it.

NOAA now posts the WEFAX schedules on the Web.

NOAA will change WEFAX image format beginning July, 1997.

NOAA will convert from analog WEFAX to digital LRIT broadcast format begiining with GOES-N in 2002. The rest of the geosynchronous satellite will do likewise.


(updated 23 August 2000)



Launch (M/Y)





Meteosat 5




Meteosat 6




Meteosat 7






















































GOES - 8





GOES - 9





GOES - 10





GOES - 11


















Russian Federation





















Route 1, Box 27
Peachland, NC 28133
Tel: 704-272-9028 
Fax: 704-272-9036 
BBS: 716-425-8759 
Email: multifax@vnet.net

Satellite Data Systems

Satellite Data Systems, Inc.
P.O. Box 219
Cleveland, MN  56017-0219
ph: 507-931-4849
fax: 507-931-4849
Internet:  sds@ic.mankato.mn.us
World Wide Web:  http://ic.mankato.mn.us/~sds
  APT and WEFAX systems     
  Quadrifilar Helix Antennas for APT
  Weather Satellite Image Interpretation course, Middle School and Up.
  KidSat weather interpretation course for grades 2-6


Quorum Communications, Inc.
8304 Esters Blvd
Suite 850
Irving, TX 75063
Phone: (800) 982-9614 in USA and Canada
Phone: (214) 915-0256 from anywhere
FAX: (214) 915-0270
Email: info@qcom.com

Receiver notes

Subject: The Need for Selectivity (Was: Re: Pager Interference)
From: rbarth@noaa.gov (Richard Barth)
Date: Fri, 25 Jul 1997 12:57:54 -0400


The answer you received from the Radiocommunications Agency is perhaps the
first thing spectrum regulators think of, and being on the fringes of that
business myself I undertand why.  In fact, given your use of what you
describe as an "ultra-broadband receiver", they may well be right.

There are primarily three things that create interference in situations such
as the one you describe, in which the interferer (here, above 138 MHz) and
the desired signal (here, 137. something) are significantly different in

(1) One is the possibility of an over-broad interfering signal.  A pager
probably requires no more than, say, 25 KHz of bandwidth, and any energy
outside that bandwidth should be reduced to an acceptable level (as defined
by the Agency.)  Given that you see pager energy down to 137.7 MHz or so,
they may be putting out excessive spurious energy, in which case they may be
responsible for curing the problem.  But, see (2).

(2) If the receiver (and this includes spectrum analyzers) are over-broad,
they may receive a clean out-of-band signal and, because of their own
non-linearity, generate hash IN THE RECEIVER which disrupts the desired
signal.  The receiver, to avoid this problem, must have sufficient dynamic
range to avoid non-linearity or must filter out the interferer.

(3) A strong (though clean) interferer may cause the receiver AGC to
attenuate the desired signal to the point of unreadability.

The kinds of satellite you're looking for aren't rock-crushers.
Particularly during certain parts of the pass they're probably pretty weak
in comparison to interference. Therefore, they're vulnerable to all of the
above problems.  A filter is one way to extend the useful life of an overly
broad receiver, if its lack of selectivity is in fact the problem.  I expect
there are others in this group who know more than I about filters, so I'll
leave it to them to provide recommendations on availability and sources.

One point I would like to add is that this problem is likely to get worse as
time goes on.  There is more and more pressure from industry to use what up
to now have been considered "meteorology bands."  The Mobile Satellite
Service (MSS, a.k.a. "Little LEOs") is already using 137-138 MHz and the
current lack of problems is due primarily to the fact that they haven't
gotten around to doing it in a big way.  Only 8 or so MSS satellites are
currently flying here.  There will eventually be dozens and may approach 100
depending on the decisions made by licensing authorities (of which I'm not
one, so please don't preach to the choir.) Similar commercial use is
currently authorized (by ITU spectrum allocation) in 400.15-401 MHz planned
for use by U.S. metsats in a few years, and in 1675-1710 MHz now used by
Japanese S-VISSR, by U.S. GVAR, WEFAX, EMWIN, HRPT etc., and by radiosondes
around the world.  Unless national regulatory bodies recognize the need for,
and protect existing meteorological activities the problem will only get worse. 

Earlier, "Dr. Peter N.H. Davies" (P.N.H.Davies@sussex.ac.uk) said:
*I was reminded, by a recent wxsat-l mail query (Richard.Whitcombe, "A
*few beginners questions", 11/7/97), that quite a large proportion of the
*UK 137 MHz amateur satellite band is apparently permanently masked by
*100W pager interference at 138+MHz.  
*Last week I had a brief opportunity to talk to some members of the UK
*Radio Communications Agency (RCA), who police our airwaves, about this
*Problem!  What problem!  Apparently amateurs are using inferior equipment!
*Now, as a newcomer myself to radio (and in particular, satellite)
*reception, I can quite believe I am, but didn't fully appreciate it. 
*I use an ultra-broadband receiver, which gives me enormous receiving
*flexibility, but I think I have probably been lulled by the apparently
*high frequency discrimination into somehow expecting a better intrinsic
*performance (a 'spike' at 137.50, 137.62... would be nice). In practice,
*using a spectrum analyser, I can see an enormous, variable 50dB pager
*'curtain' spreading down as far as 137.7 MHz.
*If this is entirely an artifact of my equipment, then I'll have to learn
*how to filter it - or live with it.  If you know otherwise, then the RCA
*(New King's Beam House, 22 Upper Ground, London, SE1 9SA), although
*under-manned and under-funded, would like to know; they have enormous
*powers (above police and customs, apparently) to enforce frequency
*spectrum conformance.
*Any useful filtering suggestion, anyone?
*All the best,           Peter.
***************  Sussex University Space Science Centre  ***************
*Dr. Peter N.H. Davies, Sussex University, Brighton, Sussex. UK. BN1 9QT
*phone: +44 (0)1273 678599  fax: +44 (0)1273 678399
*E-mail: p.n.h.davies@susx.ac.uk
*WEB: http://www.susx.ac.uk/engg/research/space/
Richard Barth *** W3HWN@AMRAD.ORG *** Silver Spring MD
From: Mr Chris Johannes Van Lint (thai@HK.Super.NET)
Date: Sat, 21 Jan 1995 18:08:53 +0800 (HKT)

Anita Perryman wrote re- GMS-4 reception in Indonesia
The dish is certainly the least of their problems.  There are plenty of dishes 
about in Indonesia, most of them between 1.5 - 2m.  They are used for TVRO 
reception and are more than adequate.  In comparison to Meteosat an GOES
imaging, the fundamental problem with GMS is that the receiver requires a
bandwidth of 260 KHz and a commercially available receiver generally does not
cover this.  If your colleagues have experience with electronics, especially
radio, a very elegant solution is to take a commercial FM broadcast receiver
and remove a few turns from the oscillator coil to adjust the coverage to 137.5
MHz.  Common practice is to use a "coffeecan" type feedhorn, which is easy
to home brew, followed by a 1.7 GHz LNA, which probably will have to be a
commercial unit, unless your friends are very well versed in matters SHF and
have the necesary test gear.  The pre-amp is followed by a down converter to
137.5 MHz and then into the receiver.  Again one could build a downconverter
ones self given the required skills.  Alternatively the downconverters
available in the UK would be suitable for GMS-4 keeping in mind that the
operating frequency of GMS-4 is 1691.00 MHz.  Once you have a signal, it will
need to be decoded.  Not surprisingly the Australians porbably would be the
best source for hardware and software.  A fellow in Brisbane produces an
excellent decoder board for about AU $ 100.00 (I think) and in the same
City you will find Michael Delahunty, who has produced software for decoding
the GMS series in addition to the usual APT at a more than reasonable price.
If other software and decoder boards are already available, such as the 
Timestep kit, these are fine. Again if you require a ready made down converter 
and 260 KHz bandwidth receiver another chap again in Brisbane by the name of 
Peter Williamson produces these.
BTW GMS-4 is to be replaced sometime in February this year by GMS-5, which 
will carry a further 2 spectral ranges for images.  Note that the above set
up refers to the low resolution GMS-4 images which are transmitted on the 
hour evry hour.  The high resolution images which you sometimes get in Europe
re-transmitted from GOES or Meteosat require much more sophisticated gear,
running into megabucks.
If you need any more information re the guys in Oz, sent me a message and I
might be able to give you an E-mail address of at least one of them
Chris (thai@HK.Super.Net)


Date   27/11/96
Subject    MacSat
From   Kevin Gale
To wxsat
Newcastle Computer Services PLC have released version 2.6ar5 of their
Macintosh based APT/WEFAX system MacSat II.
New features include:
1) The ability to create unlimited length QuickTime movies of geostationary
weather sequences
2) Improved Compatability with PowerMac/AV and Performa machines.
3) Improved printing to laserprinters (colour and black-and-white).
For more information on MacSat II or upgrades please contact your MacSat

US Satellite

505 White Plains Road
Tarrytown, New York  10591
phone: (914) 332-8566 
fax: (914) 332-8626 
email: satlab@computer.net
The U.S. Satellite Laboratory, Inc. has provided educators with weather 
satellite imaging stations, creating innovative, real-world learning 
experiences for thousands of students from grades 3-12.

Aquila Systems Inc.

Shawn Terry
Aquila Systems Inc.
928 Old Colchester Rd.
Oakdale, Ct  06370  USA

We supply APT/WEFAX systems, satellite reception hardware, and powerful
software for ingesting and doing extensive post-processing on 
APT, WEFAX, GVAR, and HRPT imagery.


Woodhouse Communication
P.O. Box 73
Plainwell, MI 49080-0073 
Voice: (616) 226-8873
Fax: (616) 226-9073 
E-mail: view2earth@aol.com 

Woodhouse Communication is dedicated to the discipline of
earth and atmosphere imaging. We manufacture hardware,
publish books and magazines, and offer custom design and
construction services for imaging facilities.

EMWIN systems

EMWIN, Emergency Managers Weather Information Network

EMWIN is NOAA's satellite broadcast service, not to be confused with NOAA's on-line IWIN service.

EMWIN Vendors

HRPT systems

Subject: HRPT Suppliers
From: Paul Biba (paulbiba@worldnet.att.net)
Date: Sun, 17 Mar 1996 23:31:32 GMT

Here is the original listing posted by Alistair Steyn-Ross, with a few
additions I caught on the board since the original postings.

Wxsat Ground Station Equipment Suppliers
1. Alternative information sources
2. Alphabetical list of suppliers of HRPT and related products
3. Acknowledgements

1. Alternative information sources

NASA SeaWifs:
   Contains a list of 15 suppliers of SeaWiFS-receiving equipment
   (last updated: Aug 1993) 

   A rather complete list covering the full spectrum of wxsat-related
   receiving equipment:
           APT systems: 28 suppliers
          HRPT systems: 22 suppliers
      GOES Tap systems: 11 suppliers
          GVAR systems:  3 suppliers
         WEFAX systems:  6 suppliers
     VISSR/VAS systems:  9 suppliers
     METEORSAT systems:  2 suppliers
              Software: 12 suppliers 
   (last updated: Mar 1995)

 Maintains a world-wide list of receiving station manufacturers
 (unseen by this compiler)
 Contact: Wayne Winston (wwinston@ssd.wwb.noaa.gov)

WMO: World Meteorological Organisation
 Don Hinsman (hinsman@www.wmo.ch) at the WMO has a comprehensive 
 worldwide list.
 (unseen by this compiler)

2. Alphabetical list of suppliers of HRPT and related products

Array Systems Computing
1120 Finch Ave W., 8th floor,
North York
Ontario, M3J 3H7, 
ph: (416)736-0900
= HRPT systems integration

British Aerospace - DARTCOM
FPC 333 - PO box 5
Bristol BS127QW - UK
tel 0272 366 379
fax 0272 366 819

Attn: John Lethbridge (Compuserve 10666,2334)
Powdermills, Postbridge
Yelverton, Devon, PL206SP
ph:  +44 1822 880253
fax: +44 1822 880232
= HRPT / APT / Wefax

Data Tools Product
Attn: Andre Honig
10a, rue Kellerman
tel : (33) 3 88 19 99 96  fax : (33) 3 88 19 99 93

Dundee Satellite Systems
8 Kilmany Road, Wormit, Fife, DD68PF
Scotland , UK
tel 44-382-307406
fax 44-382-27236   (  caution recent change in UK !! )

35 rue Jean jaures BP20
tel : (33) 1 34236200  fax : (33) 1 34236324
ICQ UIN: 12066009

P.O. Box 134001
Ann Arbor, MI 48113-4001
ph: (313)994-1200

Attn: (mguberek@globalimaging.com)
Suite 380
201 Lomas Santa Fe Drive
Solana Beach, CA 92075
ph:  619-481-5750
fax: 619-481-5794
toll free: 800-345-4624
= HRPT systems

GTI Electronics
Attn: (gtielect@postoffice.ptd.net)
1541 Fritz Valley Rd
Lehighton, PA 18235
Tel 717-386-4032
Fax 717-386-5063
= APT / WEFAX / HRPT / DMSP/ SeaWiFS / GOES-8 and 9 GVAR Multi-Tasking

IPS: Information Processing Systems
Attn: Bo Bjarno
70 Glenn Way
Belmont, CA 94002
ph:  425-592-1742
fax: 415-592-3544
= GOES / TIROS / Meteorsat / DMSP / GMS

Morcom International, Inc.
14210-B Sullyfield Circle
Chantilly, Virginia 20151
Phone: (703)263-9305
Fax: (703)263-9308
Email: info@morcom.com
Web: www.morcom.com

NERC Satellite Station
University of Dundee
Dundee, Scotland DD1 4HN
Telephone: 0382-307406

OFS WeatherFax
Attn: Jerry Dahl (jdahl@nando.net)
fax: 919-847-4545
= Wefax / APT

ORLEV Scientific Computing, Ltd.
New Industrial Area
P.O.B. 68,
Yavne 70650, Israel
Telephone: 972-8-431615

Quorum Communications 
Attn: Rick Fogle
8304 Esters Road 
Suite 850 
Irving, Texas 75063 
ph:  214-915-0256
fax: 214-915-0270
= APT and HRPT

Satellite Data Systems
P O Box 219 
Cleveland MN 56017

SeaSpace Corporation
Attn: Mrs. Hawley Sandfer (hawley@seaspace.com)
9240 Trade Pl., Ste. 100
San Diego, CA 92126
ph:   (619) 578-4010
fax:  (619) 578-3625
Internet:  info@seaspace.com
World Wide Web:  http://www.seaspace.com
= HRPT systems

SMARTech (Satellite Mapping And Resources Technologies)
Attn: Leslie S. Davis (ldavis@awod.com)
1725 Signal Point Road
Charleston, SC 29412
ph:  803-795-5621
fax: 803-795-5793
= HRPT systems

SWAGUR Enterprises
=  feed horns, Low Noise Amplifiers (LNA), Bias T s and Line amplifiers.

Systems West, Inc.
3239 Imjin Road
Marina, CA  93933-5109
Voice: 408-582-1050
Fax: 408-582-1056
E-mail: syswest@syswest.com
WWW: http://www.syswest.com
= HRPT and APT/ GOES GVAR/ GMS S-VISSR/ Meteosat PDUS/ Feng Yun2/ all WEFAX

(no address avail.)
fax:  619-571-5909
= Antennas

932 E. Impala Avenue
Mesa, AZ 85204-6699
ph: 602-892-4444
Attn: Dave Beaty
= HRPT turnkey systems

TimeStep Weather Systems
(A British company with a sales office in Massachussets.)
ph:  508-263-2145
fax: 440  82 0281
= APT and HRPT

VCS engineering GmbH
Borgmannstrasse 2
4630 Bochum 7 - GERMANY
tel 49-234-2390757
fax 49-234-2390711
= HRPT systems integration

3. Acknowledgements

Thanks to the following for helping with the compilation of this list:

Ted Barnes     (srghejb@GIH.GRACE.CRI.NZ)
Tim Coffey     (tpc@zippy.SAIC.COM)
Dominique Dagorne    (Dominique.Dagorne@meteo.fr)
Jerry Dahl
Kevin Davis
Leslie Davis      (ldavis@awod.com)
Jim Jordan     (jordan@convax.iar.nrc.ca)
John Lethbridge
Stephen McNeill    (mcneills@landcare.cri.nz)
Alistair Steyn-Ross   (asr@frodo.colorado.edu)  
Bill Ruggles
Hawley Sandfer    (hawley@seaspace.com)
Brian Wannamaker (brian.wannamaker@canrem.com)
Wayne Winston    (wwinston@ssd.wwb.noaa.gov)


Vendors of satellite antenna and reciever hardware

Most of the aforementioned GVAR systems vendors also sell components.

In addition:

Andrew Corporation

Sells earth stations in a variety of sizes and capabilities.
Andrew Corporation
10500 W. 153rd Street
Orland Park, Illinois 60462 USA
Fax: 1-800-349-5444
e-mail on the web

Satellite Export and Engineering

Sells Patriot dishes in a variety of sizes and capabilities, including a pair of 12 foot dishes on the Earth Sciences building at NASA-GSFC.
Satellite Export and Engineering
Attn: Cindy Ruff
702 Edgar Street
PO Box 34
Marquette, IA 52158
Fax: 319-873-2527

Global Antenna Services LLC

Installs radio telescopes around the world.
Global Antenna Services LLC
8742 Lake Drive
Springport, MI 49284
Mobile office number (269) 274-4081 
Web site:  www.globalantennaservices.com
Owner Bob Cato

S-band Transmitters

Date: Tue, 11 May 1999 07:25:10 -0400
From: "Warren F. Dorsey" <wdorsey@nesdis.noaa.gov>
Subject: Re: GOES Satellite Transmitters

Are you asking for the S-bnd XMTR's.  There are only two of recent date and one of these is presently building our new ones.  Our S-band manufacturer's are:

	1.	COMTECH Microwave Corp.
		105 Baylis Road
		Melville, New York  11747
		They also make the solid 
		state command XMTR for the 
		new 13M POES antennas

	2.	NEXCOM, Inc. and RSI (formerely PTI)
		4343 Fortune Pl.  Unit C
		Melbourne, FL  32904

		RSI/PTI Model 2100KS
		709 Anchors Street, N.W. 
		Fort Walton Beach, FL  32548

We also have some old Enterprise Electronic corp. S band XMTR's that will be phased out when the new NEXCOM/RSI units are installed.
The older units by EEC and Comtech XMTRs used a Varian Tube Model number 7795A-D.  The new XMTR units will use a Thompson 2451D.


Attn: Dr. Frank J. »ynes (frank@spacetec.no)
Kongsberg Spacetec a.s
Prestvannv. 38
N-9292 Troms┐, Norway
ph: +47 77660800
fax: +47 77655859
Internet:  http://www.spacetec.no/
= Meteorological systems and complete ground stations

WWW listings of vendors of satellite software

Other WWW listings of vendors of satellite recievers

Maintained by: Dennis.F.Chesters@nasa.gov