Sunday, March 30, 2008

Lockheed Martin Wins Huge JTRS Contract

Washington Post:

Lockheed Secures Bid for Military Radio System

By Dana Hedgpeth
Washington Post Staff Writer
Saturday, March 29, 2008; Page D02

Lockheed Martin of Bethesda yesterday landed two major contracts worth a total of $1.3 billion, including one to overhaul the military's radio system so that all the service branches can communicate with each other.

The world's largest defense company beat out Boeing to get the $766.2 million Pentagon contract to design and build a new radio system that will connect aircraft, ships, submarines and ground stations.

The Defense Department's program, called the Joint Tactical Radio System , is a major step toward replacing the older radio systems the Army, Navy, Air Force and Marine troops now use, allowing them to have one system that can transmit video, conversations and other data.

...


JTRS accomplishes the above goals through highly flexible, mostly software based, radios. Obviously developing a single, interoperable, full-featured communications system for the entire US military is a rather ambitious undertaking, and this program has been around for quite some time. In 2005, there were serious doubts about its feasability. Obviously, many meetings took place, and in 2007 a Request for Proposals was made for an early phase called the Airborne and Maritime/Fixed Station Joint Tactical Radio System.

Today, the announcement was made that Lockheed won. This contract is worth $766.1 million. Depending on what happens, it could ultimately be a lot more. Presumably the usual defense radio vendors will supply equipment and expertise.

Wednesday, March 26, 2008

Shuttle Landing is GO

Just a few seconds ago, the decision was made to land at KSC tonight. The de-orbit burn is in 8 minutes. The landing is still scheduled for 8:39 Eastern time (0039 UTC). Ground track is over Mexico, out into the Gulf right over the Yucatan, and northeastward toward Florida.

Space Shuttle May Land Tonight

Just as I was posting this, the Endeavour landing opportunity at 7:05 PM (2305 UTC) was waved off due to poor weather.

This leaves a second opportunity at 8:39 PM Eastern (0039 Thursday UTC). The shuttle's backup sites for landing, Edwards Air Force Base, Calif., and White Sands Space Harbor, N.M., were not activated Wednesday.

Weather seems to be improving, but if this second one waves off, they'll try again Thursday.

Two hours after landing, NASA officials will hold a media briefing to discuss the mission.

Tuesday, March 25, 2008

Solar Activity Picks Up

Cycle 23 active regions #987 and 988 have appeared from behind the sun's east limb, already with very large sunspots and one M-class flare. A third region is currently appearing. As this complex rotates more toward the center of the sun (as seen from Earth), there's a possibility for more activity. At a minimum, solar flux should go above 80 for the first time in quite a while (it's 79 right now), and with a southward Bz at present one can't discount the possibility of aurora should the solar wind increase.

Sunday, March 23, 2008

Ice Season Is Here!

North Atlantic icebergs are worst in the spring months. The Titanic hit an iceberg on April 15.

At present, the Boston ice chart is being updated once a week, but this will shift to daily before long. Note the distinctive callsign "NIK" used for the ice broadcasts. Here is the schedule for these (times UTC, frequencies kHz):

0438 FAX 4235, 6340.5, 9110
1218 SITOR 8416.5, 12579, 16806.5
1600 FAX 6340.5,9110
1810 FAX 6340.5, 9110.

And here's a typical chart copied a couple of days ago:

Monday, March 10, 2008

STS-123 Count Continues

Launch is on schedule for 0628 UTC, one hour from now.

Booster Recovery Director (BRD) at Cape Canaveral, FL is on 6897.0 USB working Booster Recovery Vessels Freedom Star and Liberty Star. Good signals in California.

Weather, though cloudier than expected, is still only a 10% probability of preventing launch.

US Loran-C Will Stay On Air

Following an investigation and comment period, the US Coast Guard has decided to continue funding the LORAN (LOng RAnge Navigation) network on 100 kHz. It was decided (accurately, IMHO) that a modernized version of Loran-C provides a reliable backup to the GPS system in case of an outage or disruption.

The eLoran system mentioned in the release adds another pulse to the existing burst. This can provide additional user data. This has been tested in the field, and the extra pulse displays on triggered scopes tuned to the particular chain's Group Repetition Interval. Loran-C transmitter chains use very high pulsed power levels, and they are audible just about anywhere on this low frequency.

Also, more modern transmitters are being installed. These are completely solid state, and essentially high-powered strobes for RF instead of light waves. Controlled by atomic clocks, they dump a huge capacitor across a circuit, producing the precisely timed short pulses that make the system work.

Here's the release from the Department of Homeland Security:

February 7, 2008
Contact: (202) 282-8010

STATEMENT FROM DHS PRESS SECRETARY LAURA KEEHHNER ON THE ADOPTION OF NATIONAL BACKUP SYSTEM TO GPS

Today the U.S. Department of Homeland Security will begin implementing an independent national positioning, navigation and timing system that complements the Global Positioning System (GPS) in the event of an outage or disruption in service.

The enhanced Loran, or eLoran, system will be a land-based, independent system and will mitigate any safety, security, or economic effects of a GPS outage or disruption. GPS is a satellite-based system widely used for positioning, navigation, and timing. The eLoran system will be an enhanced and modernized version of Loran-C, long used by mariners and aviators and originally developed for civil marine use in coastal areas.

In addition to providing backup coverage, the signal strength and penetration capability of eLoran will provide support to first responders and other operators in environments that GPS cannot support, such as under heavy foliage, in some underground areas, and in dense high-rise structures. The system will use modernized transmitting stations and an upgraded network.

###

STS-123 Launch Tonight

Countdown continues for the launch of space shuttle mission STS-123 at 2:28 AM Eastern time. (That's 0628 UTC.) Yes, that's the middle of the night, but that's when the window opens. Night owls in the southeast should get a rather spectacular light show. It's really amazing how bright it is.

NASA TV schedule (All times UTC):

NASA TV coverage begins ----------- 0130
Launch (middle of 10 min window) -- 0628
Launch video replay --------------- 0641
Additional camera replays --------- 0713
Post-launch news conference ------- 0730
Ascent team video replay ---------- 1200
Launch engineering replays -------- 1228


At present, weather has only a 10% chance of preventing launch.

Sunday, March 09, 2008

PEMEX Adds ALE Frequencies

PEMEX, Petroleos Mexicanos, the Mexican national oil company, has finally put up more Automatic Link Establishment (ALE) frequencies to go with the original three. Three freqs isn't much of an ALE net, but now it starts to look like the real thing.

These are the frequencies that various people have reported. The ones I can verify personally have a * :

2182.0 * (1)
3700.0 *
4078.8 *
4487.5
4900.0 * (2)
7450.0 *
8291.1
8242.9
9265.0
11095.0 *

Notes:
(1) This is an international maritime calling and distress frequency, and it is doubtful if Pemex is allowed to sound there for any length of time.

(2) 4900 has so far only had Mexican military here, but I'm keeping it in the scan because others have heard Pemex.

USCG NMN (Norfolk) to Drop On-Call Sitor-A

And it is probably only a matter of time before other CG stations do similar.

ZCZC GA82
USCG CAMSLANT HF ON CALL SITOR TERMINATION ADVISORY
1. USCG CAMSLANT CHESAPEAKE VA (NMN, SELCALL NR 1097)
WILL TERMINATE ALL HIGH FREQUENCY (HF) RADIOTELEX (ON CALL
SITOR) SERVICES EFF 2359Z MAR 31, 2008. SHORE
RECEIVE FREQUENCIES 6262.8, 8386.3, 12488.3, 16694.8,
AND 22298.8 WILL NO LONGER BE ACTIVE AFTER THIS DATE.
2. AMVER AND NOAA METEOROLOGICAL REPORTS WILL CONT TO
BE RECEIVED AT NO CHARGE THRU SHIPCOM HF RADIOTELEX
(NBDP) SERVICE VIA WLO NEAR MOBILE, AL OR NOAAS SEAS
(SHIPBOARD ENVIRONMENTAL (DATA) ACQUISITION SYSTEM)
PROGRAM OVER INMARSAT C. AMVER REPORTS MAY ALSO BE
SENT AT NO CHARGE THRU GLOBE WIRELESS.
3. BROADCASTS OF MARITIME SAFETY INFORMATION FROM
CAMSLANT CHESAPEAKE VA BY HF SITOR (HF NAVTEX) ON
FREQUENCIES 6312.3, 8414.8 12577.3 AND 16804.8 WILL
NOT BE AFFECTED BY THIS ACTION.
4. CANCEL AT TIME//040001Z APR 08//

NNNN

Saturday, March 08, 2008

New PC-HFDL Data File

The new pchfdl.dat file for HFDL system table #33 has been installed to the config directory of PC-HFDL, and it works. The frequencies now show in kHz again, instead of just the numbers.

The file has been copied to the Utility World web site. As always, shut down PC-HFDL first. Go to the config directory, and rename the existing pchfdl.dat something like oldpchfdl.dat or pchfdl32.dat. Copy the new file to this directory, make sure it is still named pchfdl.dat, then restart PC-HFDL. If you're lucky, the system table will show as #33, and the frequencies will appear in kHz.

This doesn't always work for everybody, but this file as usual is the one on the Yahoo HFDL group, and works for most users there. As always, don't worry that a text listing of the file looks like gibberish, with binary data and fragments of ACARS messages. The system table is in there somewhere.

Once again, I thank this group for getting the data up in such a timely manner. I might get a system table live on the air here in The Land That Short Wave Forgot, and I might not.

New HFDL System Table

About 24 hours ago, ARINC put out a new system table for its HFDL system.

The new table is number 33, or 21 in hexadecimal.

The only changes are to the Molokai ground station (number 02). The old frequencies of 5538, 5529, 5508, 3001, and 2878 kHz have been deleted. They are replaced by 13324, 13312, 6565, 5514, and 4687 kHz.

The new pchfdl.dat file will be uploaded to the Utility World web site as soon as it is tested and verified working here.

Monday, March 03, 2008

Sunspots Hit Absolute Bottom

Recent pictures of the solar disk often show something we don't see often. This is a solar disk completely free of sunspots. In fact, the daily sunspot numbers have as often as not been zero in the past couple of weeks (a condition reported as SPOTNIL by people who are into these things). These numbers are not obtained by counting visible spots, but by counting visible active regions as 10, and individual spots as 1. Therefore there can't be any active regions either for 0 to be reached.

Today there's one active region, I think. It's a pretty weenie one. The recent fluctuations in the A and K index are due not to sunspots but to a coronal hole and southward interplanetary magnetic field (Bz).

Daily solar uncorrected solar radio fluxes from the observatory used by WWV have been running in the 68 range. Folks, it just doesn't get very much lower than this. It can't, with these laws of physics.

Today was the first time in a while that HF propagation was absolutely putrid. Let's face it. It sucked the big one.

All this is further evidence, as if we needed any, that Cycle 23 is ending. Yes, there's no where to go from here but up.

Friday, February 29, 2008

NASA Gives "Go" For Space Shuttle Launch On March 11

Feb. 29, 2008

Candrea Thomas
Kennedy Space Center, Fla.
321-867-2468 candrea.k.thomas@nasa.gov

Michael Curie
Headquarters, Washington
202-358-4715
michael.curie@nasa.gov

RELEASE: 08-072

NASA GIVES "GO" FOR SPACE SHUTTLE LAUNCH ON MARCH 11

CAPE CANAVERAL, Fla. - NASA senior managers completed a review Friday of space shuttle Endeavour's readiness for flight and selected March 11 as the official launch date for the STS-123 mission. Commander Dominic Gorie and his six crewmates are scheduled to lift off to the International Space Station at 2:28 a.m. EDT.

During the 16-day mission, the crew will deliver and install the first section of the Japan Aerospace Exploration Agency's Kibo laboratory and the Canadian Space Agency's two-armed robotic system, Dextre. Five spacewalks will be conducted during the flight.

Endeavour's launch date was announced after the conclusion of Friday's Flight Readiness Review. During the two-day meeting, top NASA and contractor managers assessed the risks associated with the mission and determined the shuttle's equipment, support systems and procedures are ready for flight.
Gorie will be joined on STS-123 by Pilot Gregory H. Johnson and Mission Specialists Robert L. Behnken, Mike Foreman, Rick Linnehan, Garrett Reisman and Japanese astronaut Takao Doi. Reisman will remain on the station as a resident crew member, replacing station flight engineer Leopold Eyharts of the European Space Agency, who will return home on Endeavour.

For more information about the STS-123 mission, including images and interviews with the crew, visit:

http://www.nasa.gov/shuttle

-end-

Thursday, February 21, 2008

VP6DX: Not Really Ute, But Interesting

The last couple of nights, the gray line has really been blasting in here. For example, the first major ham radio DXpedition of 2008, VP6DX, is right now S6 on 10106 kHz CW into L.A. for the second evening in a row. (Never understimate gray line... It's how I nailed Clipperton on 100 watts to a simple inverted vee...)

VP6DX is on Ducie Island. It's an uninhabited piece of land to the east of Pitcairn Island, the place the Bounty ended up. Any time a place makes Pitcairn look like civilization, you KNOW you are nowhere. He'd actually worked 30 meters out for a time, but now he's running stations again, and actually getting stronger. Come on you guys in SoCal, you've got to have a signal, here's a new one.

More at ARRL.

UPDATE 0321 UTC
: VP6DX is also on RTTY, 10148.9 kHz, taking calls down 10. You have to love ham radio.

Monday, February 18, 2008

First STS-122 Landing Opportunity on Wednesday

From NASA Public Office:

NASA managers will evaluate weather conditions at Kennedy before permitting Atlantis to return to Earth. Wednesday landing opportunities at Kennedy are at 9:07 a.m. and 10:42 a.m. EST. There are additional opportunities at 12:12 p.m. and 1:47 p.m. at Edwards Air Force Base, Calif., a backup landing site. The shuttle's other backup site for landing, White Sands Space Harbor, N.M., will not be activated Wednesday.

Sunday, February 17, 2008

Press Release: US Coast Guard Continues HF Weather Broadcasts

Press Release
DATE: February 07, 2008 14:39:41 EST
FOR IMMEDIATE RELEASE
Office of Public Affairs
U.S. Coast Guard

Contact: (202) 475-3555


US Coast Guard Continues HF Weather Broadcasts


WASHINGTON - Last April the Coast Guard asked for public comment on the need to continue broadcasting high frequency (HF) high seas weather forecasts for single sideband voice, facsimile charts and text messages over radiotelex (e.g. HF NAVTEX). The Coast Guard required public comment because the infrastructure necessary to provide these services had exceeded its life expectancy and significant costs were involved to continue these services.

After reviewing and analyzing the substantial public response that overwhelmingly urged the continuation of these services, the Coast Guard's "business case study" concluded that it was necessary to continue HF weather broadcasts. The business case study, "An Impact Assessment of Discontinuing USCG High-Frequency Radio Broadcasts of NWS Marine Weather Forecasts" is posted at:
http://www.navcen.uscg.gov/marcomms/high_frequency/HF-WX_notice.htm

The study concluded:

"The responding public collectively perceives that the USCG HF broadcasts are essential to their safety. There is no viable alternative to the USCG HF broadcasts because present alternatives are perceived by the public to be out of financial reach. Also, marine weather forecasts available through these alternative sources may not guarantee the same level of accuracy, timeliness, and/or sufficiency as provided by the USCG HF broadcasts."

While the Coast Guard does not have funds necessary to replace all of its HF transmitters, funds are available to replace the 20 transmitters used for weather broadcasts.

###

The U.S. Coast Guard is a military, maritime, multi-mission service within the
Department of Homeland Security dedicated to protecting the safety and security of America.

------------

The full report is here. It is very comprehensive and informative, and worth the time to get and read it.

------------

Here's more from USCG Navcen:


The Coast Guard's HF infrastructure


The Coast Guard's HF infrastructure consisting of 123 10KW transmitters are no longer supportable. Repair parts are increasingly difficult to find, more expensive, and take can months to obtain. Funds should be available to replace many, but not all of these transmitters. Consequently all but the most essential HF services are or will be terminated. However, due to responsive received from the public and the conclusions of the business case report, the Coast Guard has decided to continue HF broadcasts of high seas weather forecasts and warnings without interruption. Transmitters used for this purpose will be included among those recapitalized.

The Coast Guard uses 20 high power transmitters to broadcast HF weather facsimile, voice and text (SITOR) high seas weather forecasts to mariners. Three additional Navy transmitters are used to broadcast weather information from Guam. The cost to replace one of these transmitters is ~$200K with installation ($4M total for those used for weather broadcasts).

Reliable, high power transmitters are needed to ensure mariners can reliably receive weather information anywhere within the National Weather Service’s area of responsibility.


[Presumably the services to be affected by the phase-out of the other transmitters include those on this list that are not required by GMDSS or other treaties. More when it happens. -Hugh]

USCG Will Not Drop HF!

This news item has been up for over a week on the Mscan Meteo homepage, though I just ran across it today. It's the first news I've seen of the Coast Guard's decision on its HF services. The news, apparently, is good:

7 February 2008

I just received word that thanks to the feedback of the cruising community around the world, the future of HF radio services is saved! The Coast Guard concludes The responding public collectively perceives that the USCG HF broadcasts are essential to their safety. There is no viable alternative to the USCG HF broadcasts because present alternatives are perceived by the public to be out of financial reach. Also, marine weather forecasts available through these alternative sources may not guarantee the same level of accuracy, timeliness, and/or sufficiency as provided by the USCG HF broadcasts.


More to come......

Thursday, February 14, 2008

NASA Updates 2008 Shuttle Target Launch Dates

Feb. 14, 2008

Allard Beutel
Kennedy Space Center, Fla. 321-867-2468 allard.beutel@nasa.gov
Katherine Trinidad
Headquarters, Washington 202-358-3749
katherine.trinidad@nasa.gov

Kyle Herring
Johnson Space Center, Houston
281-483-5111
kyle.j.herring@nasa.gov

RELEASE: 08-056

NASA UPDATES SHUTTLE TARGET LAUNCH DATES

HOUSTON - NASA officials on Thursday revised the target launch dates for space shuttle flights during the second half of 2008. The space shuttle and International Space Station programs agreed to the changes during a meeting at NASA's Johnson Space Center to evaluate options following the STS-122 mission delay.

The next two shuttle flights, STS-123 on Endeavour targeted for March 11 and STS-124 on Discovery targeted for April 24, are being assessed and coordinated with NASA's international partners. Any decision on those launch dates will take place after the current STS-122 mission lands.

Late 2008 shuttle mission target launch dates are: Aug. 28 - Atlantis (STS-125) to service the Hubble Space Telescope Oct. 16 - Endeavour (STS-126) to deliver equipment to the International Space Station Dec. 4 - Discovery (STS-119) to deliver the final set of solar arrays to the station.

Flights beyond 2008 have not been assessed. Both shuttle and station program officials are considering options for scheduling the remainder of the shuttle flights.

The shuttle launch manifest is available at:

http://www.nasa.gov/mission_pages/station/structure/iss_manifest.html
For details on upcoming shuttle missions and their crews, visit:
http://www.nasa.gov/shuttle

-end-

Thursday, February 07, 2008

STS-122 Update 1725 UTC

The crew has suited up and boarded Atlantis, which has no technical issues that would prevent launch. However, weather is now up to a 70% of violating launch criteria due to a persistent cold front.

Larry Van Horn has updated MT's NASA content. See his posting to his MT Milcom Blog.