In article , Vidcapper
writes
In uk.sci.weather on Tue, 21 Oct 2003 at 12:59:47, JPG wrote :

If you just need temperature I would recommend the Oregon MTR102 - no cables
required and only £20.

Yes, I have one of those, but if you want additional sensors, you might
just as well buy a couple more of the original units. You'd think the
sensors would be cheaper than they are.

I've had occasional problems with the receiver not picking up the
sensors signal though.

They're about 15 yards apart with nothing more substantial than a wooden
shed wall & a window between them. It's not the batteries, as changing
them doesn't often help. It generally corrects itself, but not for some
hours.

Any hints on why this happens, and the best way to cure it?

I can think of two causes of this. 1) They are designated as unprotected
radio devices and operate in a radio band which has several licensed
user (MoD, amateurs, etc.) permitted to use hundreds of watts and lawful
transmissions by these users causes it. 2) If the receiver is close to a
PC then RFI from it could be raising the noise level and making the
wanted signal harder to detect. If it's due to a PC then moving the
three items should solve the problem; if it is due to other licensed
higher power transmissions moving the two thermometer parts might
improve the performance, if not then there is not much you can do other
then moving.
--
Ian G8ILZ
- to reply directly use ian (at) newbrain (dot) demon (dot) co (dot) uk