On Thu, 12 Nov 2015 10:02:58 +0000, Julian Rees wrote:

As Kev says the EW will log without the Oudie, connecting the two
together allows the Oudie to get a better GPS signal and also to get a
barometric altitude from the EW (if you use and Oudie on it's own it
uses GPS altitdude).

Adding to that: I use an EW Microrecorder, but the only external
connection mine has (apart from its GPS antenna) is a 12v supply via the
multi-line (RJ 45?) connector between the GPS antenna and USB sockets,
and that's primarily to keep its internal batteries topped up.

The one thing to note about EW Microrecorders is that the internal
batteries are NIMH rechargeables which have a fairly high self-discharge
rate. This means that if you leave it sitting on a shelf the battery will
be flat after 3 months or so and, if left like that, it will become an ex-
battery and need replacement. During the winter I turn mine on every
month or so and, if it only flashes once or twice, it gets charged
overnight on a USB charger.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |