I think there is something in the instructions about re-linking the
HRM and the SDM to the watch. You might try that.

Here's the info from the website http://www.niketiming.com

"Your watch and SDM foot pod communicate via a unique digital radio
frequency. When you change the watch battery, replace your foot pod,
or reset the watch by pressing all four buttons, it is necessary to
re-link the watch to the speed sensor. If the watch is not linked to
any speed sensor, it will prompt you to press and hold the speed
sensor button. After you have pressed and held the button on the
speed sensor, the speed sensor light will blink rapidly. For a few
seconds it will send its unique identification code. When the watch
has registered the code, it will indicate a successful link."

Hope this helps,
Curtis


On Mar 23, 2006, at 22:34, jscheitlin wrote:

> Last week, I started noticing that my HRM was dropping randomly during
> my runs, but the SDM Pod seemed to be working just fine. Then early
> this week, the pace started getting erratic as well. So I replaced
> the batteries in the watch and the HRM. Everything went fine and the
> SDM and HRM linked up again fine. I went for a run tonight and I had
> the same thing happen. Both the SDM and the HRM dropped at multiple
> points during the run. After I finished my run, I noticed that if I
> got the watch closer to the HRM or SDM that it would pick up a signal
> again. Has anyone noticed anything like this or do I need to contact
> Nike Service? Also, has anyone had any experience with the Nike
> Service Center? Thanks in advance for any help!
>