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

I have decided to make some more serious test. I have put my nuvi 37xx/34xx next to other reference device and logged satellite signal over about 20 minutes at each test. Then I have averaged signal value form logs. Here are results, blue is 34xx/37xx signal, red is reference:

My nuvi converted some times ago to 34xx, firmware 7.60
[Only registered and activated users can see links. ]

Nuvi converted back to 37xx firmware 3.60
[Only registered and activated users can see links. ]

Nuvi 37xx updated to firmware 5.00
[Only registered and activated users can see links. ]

Nuvi converted again to 34xx 7.60
[Only registered and activated users can see links. ]

I would say, that reception is better with firmware for 34xx.