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View Full Version : best combination of CPU speed, LOC location, FW and mapthis version


replogle
May 6th, 2007, 16:59
I finally got this to work yesterday, with 3.40 OE-A, mapthis 0.497, CPU speed at 111 and LOC "0", while I was driving in the car, max signal that I got was 4 bars but very shortwhile, got a fix in around 2mins.
pls share your best combinations on how to get a quick fix thx
pkunk
May 6th, 2007, 22:57
With PSP-290 you must not be travelling very fast while trying to fix. I could never get a fix when travelling at 70-100km/hr, however it would gather a list of satellites. As soon as I slowed down or stopped, it would fix almost immediately.

Using:

111Mhz
0.497
Loc - doesn't really matter
2.71 & 3.03 PRX/USB
Fixes usually under 2 minutes

Slow fixing is mostly due to interference and atmospheric conditions. Clouds and mist can make it harder too - rainy days etc... It's all to do with how much matter there is between yourself and the satellites. Moist air and clouds = a lot of water particles suspended and 'in the way' of your receiver and the satellite.
bumper_boy2000
May 7th, 2007, 20:40
pkunk, what version OE are you using?
An0nJ0hn
May 7th, 2007, 22:40
TA-079 motherboard
3.10 OE-A (not A')
PSP-290
Map This! ver. 0499
Green Screen PRX's

I clock it at 111Mhz until it fixes and then raise it to 222Mhz. I mainly speed up the clock to use my MP3 plugin although it will also run at 111. MapThis! does run a lot smoother (Map This! more responsive to PSP buttons) at the faster speed.

I've gotten 4 to 5 SAT's in about one and a half minutes locking on to at least 3 of them testing this version. By three minutes I usually have about 7 to eleven SAT's and am locked on to six to ten of them. Just as with ver. 0.4.97, my signal has been great. In my car I usually have all six bars green.

Occasionally, it takes a little longer to fix. I usually get SAT fix before moving, although I have done it while moving as well.
bumper_boy2000
May 8th, 2007, 03:50
cool man.. your testimony's really amazing. kudos to you! can i check with you what's the green screen prx about actually? :D
colosuke
May 8th, 2007, 07:51
I finally got this to work yesterday, with 3.40 OE-A, mapthis 0.497, CPU speed at 111 and LOC "0", while I was driving in the car, max signal that I got was 4 bars but very shortwhile, got a fix in around 2mins.
pls share your best combinations on how to get a quick fix thx

what version prx are you using?
goliomad
May 8th, 2007, 08:54
I'm on 3.40 OE with USB 3.40 PRX,
Mapthis version 0.499
CPU Speed 111
Holux GPSlim236
Fix under 1,5 min
bumper_boy2000
May 8th, 2007, 14:09
nice... i'm using 3.40 oe with 3.30 prx. works quite well wif my 0.499. got a fix in 4mins while driving in the day. night-wise, not sure. probably not. duno why. using gps-290.
exp3000
May 8th, 2007, 21:45
what do you guys use to lower the clock speed?
pkunk
May 9th, 2007, 00:26
bumper_boy2000:

I'm using 3.10 OEA
An0nJ0hn
May 9th, 2007, 01:10
cool man.. your testimony's really amazing. kudos to you! can i check with you what's the green screen prx about actually? :D

It's just the .PRX files used to run the Green Screen. Green screen is like a test to see if your GPS is working/recieving. Basically it looks like the GPS info screen in Map This! but against a green background, that's it. I think it was Deniska's proof of concept for getting the PSP-290 working with his software.

No kudos to me. Kudos to Deniska and his helpers. I'm just lucky.
Qman46
May 9th, 2007, 07:07
Alright Im completely lost. Using the green screen, I get about 7 sat's found in about 30 seconds. Get about 4 fixes after a minute. When I try and do this in Map This, I get like 1-2 sats found and no fixs. I dont even move the PSP at all. Still only 0-1 sat is found. I copied the .prx files from the green screen into the Mapthis folder and still nothing... Whats up?
bumper_boy2000
May 9th, 2007, 17:12
nice... cool man. thx for the refreshing. :D
goliomad
May 19th, 2007, 10:38
what do you guys use to lower the clock speed?

To save battery life
dreetje9
May 19th, 2007, 10:56
To save battery life

That's not what he meant :rofl:


what do you guys use to lower the clock speed?

In Mapthis, press start and go to "GPS info", and press "down" 2 time's.

You'll see that on the left side of the screen, above the satellite-list, CPU changes from 333 Mhz to 222 Mhz to 111Mhz.
ORBITH
May 24th, 2007, 20:00
Hi, please what is the LOC?
Liquid Smoke
May 24th, 2007, 21:11
yeah im not sure what that is either, what exactly is the LOC?

i read its not that important though, it just automatically goes to 1 when i go into gps info with my 290 connected, so i just leave it as is.