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paulkbiba
USA
5024 Posts |
 Posted - 03 déc. 2004 : 02:16:23
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News Item on the site
It looks as if the new SiRF chipset is starting to appear. After the Leadtek 9553, Globalsat is announcing the SiRFstarIII based BT-338 on on its site:
V1 didn't work in the cold, but v2 does (Serial # >300) ;-)
  
  
V1 didn't work in the cold, but v2 does (Serial # >300) ;-)
A bluetooth unit with 15 hours of battery life.
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Marvin Hlavac
Canada
6817 Posts |
Posted - 03 déc. 2004 : 02:35:48
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Very nice! Thanks for the info Paul. I just checked websites of their 3 distributors for North America (with my credit card handy) and still nothing ;-)
Operation time:15 hours, in continuous mode Very nice indeed.
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Regards,
Marvin Hlavac
Toronto, Canada |
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paulkbiba
USA
5024 Posts |
Posted - 03 déc. 2004 : 02:42:54
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Let us know when you find it in stock.
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gpspassion
84989 Posts |
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Marvin Hlavac
Canada
6817 Posts |
Posted - 03 déc. 2004 : 03:18:26
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On the Phone
Hello, my name is Gpspassion and I need your new SiRFstarIII GPS for some testing. I'll be in Taiwan tomorrow. See ya...
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gpspassion
84989 Posts |
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batnun
7 Posts |
Posted - 03 déc. 2004 : 10:07:02
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More details:
The BT-338 builds in the SiRF Star III Low Power chipset to achieve higher sensitivity. It communicates with Host platform (PDA, Laptop…) Via Bluetooth Serial Port Profile. A replaceable battery with larger capacity (1700mAh) enables the BT-338 to run for up to 15 hours. A sliding battery lid makes it more user-friendly. With its tiny and delicate look, the BT-338 is definitely your best choice!
Feature:
1.SiRF Star III high performance and low power consumption chipset
2.Communication with Host platform Via Bluetooth Serial Port Profile
3.Built-in ceramic patch antenna
4.Optional external GPS antenna
5.Superior sensitivity for urban canyon and foliage environment
6.3 LED to show the rechargeable Li-ion battery
7.Operation time:15 hours, in continuous mode
8.Bluetooth operation range:10 M
Specification:
#729;Chipset Sirf Star III
#729;Frequency L1, 1575.42 MHz
#729;C/A code 1.023 MHz chip rate
#729;Channels 20 channel all-in-view tracking
#729;Antenna Type Built-in Ceramic patch antenna (External antenna optional)
#729;Position 10 meters, 2D RMS, 7 meters 2D RMS, WAAS enable
#729;Velocity 0.1 m/s
#729;Time 1 us synchronized to GPS time
#729;Default WGS-84 Acquisition Time (Open sky, stationary)
#729;Reacquisition 0.1 sec., average
#729;Hot start 8 sec., average
#729;Warm start 38 sec., average
#729;Cold start 42 sec., average
#729;Altitude 18,000 meters (60,000 feet) max.
#729;Velocity 515 meters/second (1000 knots) max.
#729;Acceleration Less than 4g
#729;Jerk 20 m/sec3
#729;Voltage Rechargeable and removable battery with 5V DC input charging circuit
#729;Operation Time Default 15 hours after fully recharged, in continuous mode, Programmable >20 hours, in trickle power mode
#729;Connection Communication with host platform via Bluetooth Serial Profile
#729;Protocol messages NMEA-0183 output protocol
#729;Output format GGA(1sec), GSA(5sec), GSV(5sec), RMC(1sec),VTG(1sec)
#729;Operating temperature -20 oC to +60 oC
#729;Humidity 5% to 95% Non-condensing
#729;Dimension 72.5mm*40.4mm*23mm |
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Marvin Hlavac
Canada
6817 Posts |
Posted - 03 déc. 2004 : 13:44:26
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First SiRFstarIII to hit the market is a unit that will likely not be ordered by many GpsPasSion members as it would require a hole to be drilled into the roof of your vehicle. However, it is interesting to at least notice the price as it may give us some indication of the price range of other SiRFstarIII units.
MR-350 TripNav External Mount GPS Receiver
Rayming. The MR-350 is a “mini” external GPS receiver, which utilizes a bulkhead (through-hole) mounting design for applications that require a more permanent weatherproof mounting solution. Price: $165.95 *** Get $25 rebate for any ordered before Jan 31, 2005 ***
General Description
The MR-350 is a “mini” external GPS receiver, which utilizes a bulkhead (through-hole) mounting design for applications that require a more permanent weatherproof mounting solution. The built-in GPS receiver is self-contained with the latest “20” channel SiRF Star III high performance GPS chipset for accurate positioning and an active patch antenna.
The extended 15’ data cable allows for easy routing to your laptop behind headliners and side panels and terminates to a custom PS/2 connector for interfacing with one of the available cable kits that can be purchased separately (USB/RS232/ PDA).
The MR-350 can be used in a wide variety of applications including being mounted on police and fire trucks, utility/commercial vehicles, boats and aircraft.
Source: http://www.starlite-intl.com/Detail.asp?pid=1354
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Regards,
Marvin Hlavac
Toronto, Canada |
Edited by - Marvin Hlavac on 03 déc. 2004 13:49:31 |
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gpspassion
84989 Posts |
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Marvin Hlavac
Canada
6817 Posts |
Posted - 03 déc. 2004 : 14:25:40
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How does the "20" affect performance? Both: MR350 and BT-338 have "20" in the specs. Leadtek 9335 is "12" channel.
They all say -159dB (so I don't trust that number)
Does more channels mean worse performance?
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Regards,
Marvin Hlavac
Toronto, Canada |
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gpspassion
84989 Posts |
Posted - 03 déc. 2004 : 15:04:47
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It really can't make much of a difference given the number of visible satellites at a given point in time. Still you're right, Globalsat also show 20 channels, seems a bit odd they wouldn't have mentioned the 20 channels when SSIII was introduced at 3GSM in Cannes last February. I hope this is not a late marketing ploy to somehow "convince" people that SSIII is MUCH better than IIe/LP since chances are there won't be much a of a difference in most standard uses (i.e. driving) and after Nemerix came out with a 16 channel GPS. The sensitiviy numbers like the TTFF numbers don't really mean much either as they're hard to tie into real life observations.
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Best "GPS" PocketPC/Choisir un PDA ou un Kit "GPS" / Où commencer? |
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Marvin Hlavac
Canada
6817 Posts |
Posted - 03 déc. 2004 : 15:47:16
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I seldom even see 9 birds so the "20" number is of no interest to me, as long as the increased number of channels doesn't negatively affect the over all performance. What would be helpful for potential buyers to have is a sensitivity measurement of the finished product. The -159dB is likely just some maximum achievable sensitivity of the chip itself, not the whole GPS receiver/antenna unit. But such real-life comparisons are provided only by you Gpspassion, so we will still have to wait a bit ;-)
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Regards,
Marvin Hlavac
Toronto, Canada |
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kenyee
200 Posts |
Posted - 03 déc. 2004 : 17:47:10
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No pricing info? And nothing from Fortuna yet? (AFAIK, Fortuna was the only one that gave out a firmware upgrade)-:
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Marvin Hlavac
Canada
6817 Posts |
Posted - 03 déc. 2004 : 21:54:43
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The MR-350, I just found out is not available yet. The web site doesn't say that and it looks like orders can be placed, but Rayming just put up an info about the unit on their website with availability: January 2005.
http://www.rayming.com/product.aspx?catalogid=169
Not yet availability info on the Globalsat BT-338 unit
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Regards,
Marvin Hlavac
Toronto, Canada |
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gpspassion
84989 Posts |
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kenyee
200 Posts |
Posted - 05 déc. 2004 : 00:43:40
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I just want the SirfIII receiver to be firmware upgradeable in case there's a SirfIII XT2 mode ;-)
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Globalsat BT-338 - "The" SiRFstarIII Bluetooth GPS
