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Muralidharan Wijay
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Jan 25, 2007 09:13:38 GMT
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GPS connection is very slow. Would any one know how to solve this?.
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Robert Graziano
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Jan 25, 2007 11:03:22 GMT
6 pts
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One thing you need to make sure is that you are standing still until the
GPS locks. Movement slows it down a lot. |
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Des Ballinger
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Mar 2, 2007 17:46:43 GMT
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There is a firmware download from hp that will fix prob, try it. |
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Eeek
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Mar 2, 2007 21:22:10 GMT
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Can you define slow? I've heard from many people that there rx5900 is slow to acquire. However, they are experiencing lock on of 1 or 1.5 minutes. This is not slow. It takes a few minutes to find those satellites. |
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Lutz Bendlin
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Mar 2, 2007 21:46:38 GMT
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just to set expectations straight, an unassisted first fix after a cold start can take anything from 12 minutes to eternity (the latter if you are moving). Subsequent fix times are quicker, but only if the GPS keeps being used regularly. |
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Eeek
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Mar 2, 2007 22:05:18 GMT
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Lutz, you know I am going to bug you. Whay would an assisted fix be? With an antenna? |
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Lutz Bendlin
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Mar 2, 2007 23:38:41 GMT
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No, assisted GPS (AGPS) is when the Ephemeris table is downloaded to the receiver not from the satellites (that's what takes 12 minutes) but from the internet or mobile provider. An example is the "GPS Quick Fix" application in the 65xx and 69xx iPAQs.
This will help the receiver to understand which satellite to expect where so that the incoming signals can be correlated quicker. |
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ICTag2
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Mar 15, 2007 05:56:29 GMT
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Hi,
Does anyone know why the assisted quickfix isn't available for the rx5900 series? After all, the rx has wireless support so it's an ideal match.
Tom |
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Just Testing
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Mar 15, 2007 18:21:54 GMT
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Because our chipsets are not capable of using the data. It has to be an instafix compatible chipset. I was hoping they could just write a program that would tell the SIRF chipset to look at file "X" first, if not there, then look to the sky. I guess it's not possible. |
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Just Testing
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Mar 15, 2007 18:26:43 GMT
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Because our chipsets are not capable of using the data. It has to be an SIRFinstafix compatible chipset. I was hoping they could just write a program that would tell the SIRF chipset to look at file "X" first, if data is not there, then look to the sky. I guess it's not possible.
Also, 12 minutes? I don't think my unit has ever took that long to figure out where it is. Even after being off for a couple of days. |
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ICTag2
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Mar 18, 2007 11:39:26 GMT
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I can confirm that 12 minutes is correct (I don't use my ipaq often so when I do need it I really notice the delay).
Yesterday I drove over 100 km on the motorway before the gps got it's fix.
Tom |
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Eeek
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Mar 18, 2007 14:35:01 GMT
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Wow. There is something very, very wrong with your gps. Call HP. At the most, in the open, my machine takes 2 minutes. Heck, I can even drive with it and I still lock on. You guys have machines that are broken. |
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David Chittick
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Mar 18, 2007 15:20:08 GMT
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I am experiencing similiar problems when I fly to different cities. I pick up my rental car, turn on the unit and wait for an extended time (no less than 1/2 hr to longer) for the unit to lock onto signal. Once it has locked on to the new signals it is fine. But when I return to my home city, I have to wait at least 1/2 hr for it recieve/recognize new signals.
Dave |
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Eeek
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Mar 18, 2007 16:46:09 GMT
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This is not what the rx5900 is all about. Call HP, get a RMA and get a new one. That is way, way too slow, be it at home or away. You know, my comcast.net mail took about 2 minutes to download. I thought that was just how it was. It was an easy fix to get it to check mail in less than 3 seconds. I think you guys are thinking the same thing with your copy of the rx5900's. No, it is not supposed to take 12 minutes to get a fix. Get help! |
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ICTag2
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Mar 18, 2007 17:31:05 GMT
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@Eeek (out of curiosity)
Which rx model do you have? What ROM version does it have? Which GPS driver version?
Thanks, Tom |
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Eeek
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Mar 18, 2007 17:36:49 GMT
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Eeek (out of curiosity)
Which rx model do you have? What ROM version does it have? Which GPS driver version?
Thanks, Tom
I have the rx5915. As far as I know, the ROM is still 1.0, no changes yet. I am updated with 3.2.2 for the gps fix. As an FYI, even before the fix, 'slow' for me was a connect of about 3 minutes- usually way under 2. I can't find the gps driver version listed. |
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ICTag2
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Mar 18, 2007 19:09:52 GMT
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Thanks - I'll see what HP support says. |
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Just Testing
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Mar 18, 2007 21:20:17 GMT
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I'm with Eeek on this one. Your units probably have issues. Driving right off the bat will take it alot longer though. Once or twice I've done that and it's taken quite awhile. Best to set it up as soon as you get in your car, or turn it on while walking to your car. While it's doing its thing, get situated in your car, take a minute to find a radio station, have a happy thought, or how you hate your job, I don't know. And then it should be good to go. |
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ICTag2
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Mar 22, 2007 19:58:32 GMT
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I tried a hard reset of the ipaq and a reset of tomtom but neither helped so I contacted support.
They told me to check the "quick gps connection " status under start->settings->connections tab.
Well I've got all sorts of icons on the connections tab but none of them refer to gps.
I guess that's the problem - for whatever reason this program is missing on some of our rx5935 pdas. Before I get back to support and find out how to download this utility could someone confirm that this icon/program really does exist?
Cheers,
Tom |
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spile
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Mar 23, 2007 11:33:17 GMT
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rx5935
Start
Settings
There is a GPS icon ...
About Backlight Certificates
Clock & Alarms Enroller GPS
HP Asset viewer etc etc |
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Chris.dG
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Mar 23, 2007 16:30:56 GMT
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The GPS icon is at Start/Settings/System, but then there is no "quick gps connection" or something like that (only SW port, HW port and the Access tab).
BTW, my first fix was within a few minutes. But I had to go to the 2nd floor, 6m higher than my living room (no signal there). However, no high buildings in the neighborhood. |
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ICTag2
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Mar 23, 2007 18:01:37 GMT
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Thanks spile, Chris,
My second support chat session confirmed that the first operator was mistaken. This icon is *not* available on the rx5935 model. It's for models that support the internet download of sat positions. |
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Mike Mulder
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Mar 24, 2007 11:08:00 GMT
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The Fix with rx5720 are also slow as another PDA. The problem is the weak receipt of the gps antenna. In situations where e.g. a ASUS a632 still 6 satelliten receives gets the rx5720 only contact to 3 satellites. The fixed takes only 1 minute with the Asus after 12h. The RX needs 2-3 minutes for the first fix on the morning. Besides the RX must have free view crosswise to the sky and be inserted. The ASUS works against it in all situations and at all places in the car very reliably. HP must absolutely work on the improvement signal level, then also the fixed becomes better. |
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ICTag2
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Apr 4, 2007 14:54:42 GMT
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Mike - It looks like you're right.
My rx5935 went back to be repaired because the 10 minute wait to get a fix was agreed by hp support to be unacceptable (let alone the 20 -60 minutes if you're moving).
It was returned - verified that it works properly without needing to be repaired.
I tested it again and found yesterday it got it's fix in under 2 minutes on a garden table with no movement and full view of most of the sky. But today was slightly cloudy (only one or two blue patches in the sky) and it took 11 1/2 minutes from the same place.
This time support said that 12 minutes to get a fix when it's not a clear blue sky is normal.
I'm going to compare this to other non-HP gps devices because I don't think this is reasonable and I don't need a navigator that doesn't start navigating until I've reached my destination (unless it's sunny).
Tom |
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FMH
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Apr 4, 2007 23:07:27 GMT
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Would be curious to know if you find any solutions to the "Slow" connection or "No" connection issues.
Like you when I travel I can not use the TOM TOM GPS as it just does not find a "Valid GPS Signal".
Tom Tom will not support the device and it doesn't appear that HP Support has a driver available, although people in this forum appear to have found GPS driver updates.
My rx5915 has "gone down hill" very fast. At one point I would get 5 minute connections and now I'm down to almost never getting a "valid gps signal".
If you find a solution... please post it.
Tnx |
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Ken Goto
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Apr 4, 2007 23:19:54 GMT
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ICTag2
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Apr 5, 2007 09:30:55 GMT
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Test 1: TomTom One comparison
Cloudy weather. Windowsill indoors
TomTom One: less than 30 secs.
iPaq: gave up after 15 minutes (didn't want to be late for work)
Cheers,
Tom
PS: Mike - Yes, I updated the gps firmware over a month ago. This helped a lot with the navigation lag once the satellites were located but doesn't solve the fix problem. |
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Alexandre Otparlic
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Apr 6, 2007 12:12:32 GMT
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I also experienced this problem with my rx5935, but only in my car, probably due tu the screen.
What made a real difference was the external antenna. With the antenna the fix is less than 30secs, and the the power of the signal of each satellite close to 80%.
Alex |
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ICTag2
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Apr 8, 2007 02:15:21 GMT
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Hi Alex,
Thanks - I might look into that.
Yesterday it took 6 minutes.
Today in the same position with more cloud - 2 minutes.
The only difference was that I'd done a soft reset this morning before trying. That sort of goes against current theory (faster if it's still got the results from the previous day).
I wonder if it is better doing a reset. I wonder if 'knowing' the satellite positions is a disadvantage since they're no longer in the same place.
Or maybe the compas orientation of the pda critical?
Tom |
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