Thread: About 37xx converted to 34xx satellites reception accuracy

Originally Posted by lolypop000

You're right, i can't give up and also I can not sleep well at night becouse all the time I think about this problem and how to find a solution for this.

Originally Posted by lolypop000

We need more users like you @rfb who try to solve this mistery

Kudos to rfb, giuseppe66, Angelo and all others prepared to take the time testing their units.
Loly,
Do you want me to convert my newer virgin 3790 to see how it performs? I would have done that already but thought maybe there is a need to have an original 'never-coverted' 37 as a reference. My convert is an earlier produced unit, whereas my 3790 is of later production. There is over 14,000 difference in the S/No of these units, so assuming that the S/Nos are not allocated in 'blocks' to different factories, one is amoung the first 2000 production units and the other amoung the later 15-16,000. There seems to be some loose anecdotal link between acceptable accuracy in earlier units, and unacceptable in later ones, maybe? If you want me to switch them around, let me know and i'll do it and test further. But really, i think the evidence is mounting that only a fw fix will help those with unacceptable accuracy.

@rfb;giuseppe66
I agree that quality of signal is more important than quantity of sats locked on. This is logical when you put it in terms of basic map reading. Better to have 3 very accurate back-bearings to prominent features than 6 highly inaccurate ones. The 'triangle of error' will always be more accurate and less confusing with the fewer accurate readings, whether it is obtained by compass or GPS device. My convert 34 never manages the same number of sat locks or quality of signal as my 37, but it's still way better in lock, quality and accuracy than you 2 guys have.

Are you and anyone else able to confirm that your units are of earlier or later production? Then we can compare accuracy with age of unit.
My converted early unit's sticker has:
nuvi 3790 1W800xxxx (in single line, without 'S/N:' in front of 9 digit/letter serial)
and my later original one has in 2 lines:
nuvi 3790
S/N: 1W80xxxxx