slow gps locks with cp5 and navman sleeve

[gilbates]

guys i use an ageing ipaq 3630 with the original ipaq navman sleeve and original sd card

the cards been reformated and cp5 installed , i am using the old alk driver that is appropriate for this sleeve , but am having terrible troubles getting the gps to lock

with cp4 it was very fast to lock even from cold and if i went under trees the re-acquire was the same , it even got locks from breif gaps in tree cover but with cp5 its a nightmare , i`m finding if i slow to a crawl it will lock but once i`m off it drops out consistantly , i do a lot of country driving through back lanes , which means alot of driving under trees , and at the momment cp5 is just bad bad bad

i no my setup is not cutting edge but its good enough for sat nav , theres plenty of memmory and storage card space and i`m not using sandisk either

is this common for cp5 or is there a fix that lets cp5 interface better with the original alk driver

[gilbates]

i should have put this above as well

but motorway driving is the same constant dropouts of gps locks , giving check connection errors , and i no full well theres nothing wrong with the conection , for ten minutes its been fine then , nothing and 3 minutes of determining current position and check connections , then its back for a while

all gps check software i have report no probs with sleeve or comms

its definately the interface between the old alk driver and cp5

[Dave]

Software/drivers aren't going to make any different to speed of acquisition or signal drops, this is purely a hardware thing, the GPS Receiver does this itself once the initial soft ON switch is toggled.

There may be problems with the new software, personally I wouldn't recommend running on a 3630, 32mb of RAM was pretty tight on CPL4 let alone CPL5. Navman's SmartST V2 won't run on 32mb (or isn't supported).

At best you usually have around 13-15mb free in program memory and newer GPS apps really need a min of 13-15mb free.

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