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andyjenkins
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Joined: Apr 02, 2005
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 Posted: Wed May 04, 2005 10:53 am Post subject: |
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lbendlin, I read *somewhere* (can't remember now) that the 338 was not firmware upgradable, despite having some 4Mb of memory.
Any truth in this ? Are firmware updates for this receiver likely do you know ? (to fix bugs at the very least, but optionally, to bring enhanced features). |
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Alanb7777
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Joined: May 05, 2005
Posts: 6
Location: Colorado, USA
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| Posted: Tue May 10, 2005 2:45 pm Post subject: |
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FYI:
There has been some discussion concerning support for EGNOS/WAAS support on SiRF STAR III based systems. I just received a copy of the Holux GPSlim236 spec sheet and User's Guide. They both specify that the 236 does support EGNOS/WAAS. Under "Position" it states:
Non DGPS (Differential GPS):
-position: 5 - 25 m CEP without SA
EGNOS/WAAS/Beacon
-position <2.2 m, horizontal 95% of time
<5 m, vertical 95% of time
The User's Guide is dated 031705 |
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lbendlin
Pocket GPS Staff
Joined: 02/11/2002 22:41:59
Posts: 11878
Location: Massachusetts, USA
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| Posted: Tue May 10, 2005 4:46 pm Post subject: |
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The documentation for the SiRF III chipset mentions SBAS. However the BT-338 rejects any SiRF commands to set the SBAS source. Ergo - while SBAS is possible, it's not implemented in the current firmware.
On the bright side this receiver is good enough to not actually need SBAS.
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toibs
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Joined: Oct 13, 2003
Posts: 65
Location: Coventry UK
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| Posted: Thu May 12, 2005 3:03 am Post subject: |
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Guys,
A little advice please - i'm a little confused about the meaning of the soft power function on this unit... any chance someone could expand a little please??
Thx
Paul |
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lbendlin
Pocket GPS Staff
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Location: Massachusetts, USA
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| Posted: Thu May 12, 2005 3:38 am Post subject: |
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When you apply external power to the unit, it will not switch on. You have to press the button to switch it on.
If it had an on/off switch and that one would be in the "on" position then the receiver would come to life when you apply external power.
This is only relevant for the folks who want to hardwire the receiver in the car. If you only ever want to use it outdoors then it's not such a big issue.
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Lutz
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toibs
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Joined: Oct 13, 2003
Posts: 65
Location: Coventry UK
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| Posted: Thu May 12, 2005 12:08 pm Post subject: |
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Lutz,
Many thanks for the reply.
So basically other than the fact you would have to manually switch the unit on (button on the front from what i can see), it could be kept say in a car perminently "on charge", just that it needs "switching on" every time it is used??
Paul |
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lbendlin
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Location: Massachusetts, USA
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| Posted: Thu May 12, 2005 1:16 pm Post subject: |
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yes.
There's one more action required - you need to lift the baseball cap under which you hide the receiver from curious looks...
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SimonCatlin
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Location: London
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| Posted: Fri May 13, 2005 4:54 pm Post subject: |
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| lbendlin wrote: | yes.
There's one more action required - you need to lift the baseball cap under which you hide the receiver from curious looks... |
..or door pocket, or glove box or arm rest. It really is that it good it works in these locations..
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andyjenkins
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| Posted: Sun May 15, 2005 1:53 am Post subject: |
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| SimonCatlin wrote: | | ..or door pocket, or glove box or arm rest. It really is that it good it works in these locations.. |
Confirmed!
I've got a Mondeo with heated windscreen (read loads of horror stories) and testing it today it was working flawlessly stuck in my glovebox. |
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NikPV
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Joined: Apr 18, 2005
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Location: Cambridgeshire
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| Posted: Sun May 15, 2005 8:13 pm Post subject: |
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| Quote: | | I've got a Mondeo with heated windscreen (read loads of horror stories) and testing it today it was working flawlessly stuck in my glovebox. |
Yes - I agree, we have a galaxy (heated windscreen) , it works fine in any of the dash cubby holes or glove compartment. :D |
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Saabu
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Joined: May 20, 2005
Posts: 4
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| Posted: Fri May 20, 2005 2:21 pm Post subject: Problems with TomTom Navigator 3 Software |
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Dear Lutz,
Thanks for a great review of this device.
Actually, I got this wonderful receiver as a substitute for 'TomTom Bluetooth Navigator' which the company was out of stock. I am not complaining.
I need some help. I have a Dell Axim x30 pocket PC with TomTom Navigator 3 software installed. I tried a lot of times to configure my software to accept this receiver, but I just could not get it right. The 'GPS info' is working fine. The port is 'COM7' with a Baud rate '4800'. I am able to pick up the signal there. When I try to open my TomTom Navigators GPS status, it is not picking up there.
Your expert views and advise will help me a lot, for which I shall be eternally grateful. I am eager to put this to this and get on the road.
Looking forward for your early reply post.
Regards. |
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lbendlin
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Location: Massachusetts, USA
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| Posted: Fri May 20, 2005 2:58 pm Post subject: |
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What happens when you set the TomTom GPS to "Standard NMEA 38400" and port "COM7" - are the black dots running then?
(4800 is possible as well, but the default for Bluetooth is 38400.)
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Saabu
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Joined: May 20, 2005
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| Posted: Fri May 20, 2005 5:17 pm Post subject: Thanks for your help! |
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| lbendlin wrote: | What happens when you set the TomTom GPS to "Standard NMEA 38400" and port "COM7" - are the black dots running then?
(4800 is possible as well, but the default for Bluetooth is 38400.) |
Thanks for your prompt reply Lutz.
The problem was identified when a friend [a computer nerd] of mine came over to help. It was that I was having the 'GPS Info' program running in my pocket PC when I tried to access the GPS status of TomTom Navigator. I feel stupid!  My friend merely asked me to close the 'GPS Info' program of 'Sirf Star III BT-338' which was running in my pocket PC and then start the 'TomTom Navigator' again. It immediately picked up the signal. 
Alls well that ends well. I gave it a try and it works like a dream.
For the sake of novices like me who may be using this forum to search for similar problems, I would suggest they set up their device in the list of drop down menu of the TomTom navigator software as 'Sirf Bluetooth' [there are many other Sirf options as well]. As per their Pocket PC model, they may have to set the Port. It is usually COM 7 or 8.
Thanks for your help all the same. It is reassuring to know that there is someone out there who can be reached if one runs into problems with this marvellous contraption.
Regards,
Saabu. |
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lbendlin
Pocket GPS Staff
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Location: Massachusetts, USA
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| Posted: Fri May 20, 2005 6:00 pm Post subject: |
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Glad to hear it worked out for you.
We do not recommend setting the receiver to SiRF mode. It's too much hassle, especially when you want to use other programs as well - most of the programs talk NMEA. Setting it to SiRF may prevent you form using the receiver with those programs.
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Saabu
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Joined: May 20, 2005
Posts: 4
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| Posted: Fri May 20, 2005 10:35 pm Post subject: |
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| lbendlin wrote: | Glad to hear it worked out for you.
We do not recommend setting the receiver to SiRF mode. It's too much hassle, especially when you want to use other programs as well - most of the programs talk NMEA. Setting it to SiRF may prevent you form using the receiver with those programs. |
I am now following your advise and have set my GPS Software to receive in NMEA 38400 mode. It works fine.
If I may ask you, what is NMEA compared to SiRF? I thought since the equipment is BT-338 SiRF STAR III, it should only be compatible with SiRF mode. Pardon my ignorance.
Thanks,
Saabu. |
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