http://www.eceblogger.com/2007/06/rooftop-rain-event-logging-station/ Wed, 19 Oct 2011 23:36:53 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.eceblogger.com/2007/06/rooftop-rain-event-logging-station/#comment-29 bmcmahon Mon, 25 Jun 2007 14:17:41 +0000 http://www.eceblogger.com/?p=50#comment-29 The second aluminum plate, not mentioned in the above article, also holds an omni-directional antenna, and was subsequently used to monitor additional signal statistics not available on our original signal monitor. The second omni-directional antenna is monitored with a Sencore AT1506 8-VSB signal analyzer loaned to us by NHPTV. These additional statistics give us more information from the demodulator such as EVM (error vector magnitude), multipath echo data, etc. The original signal monitor logs signal-to-noise ratio exclusively, and is the same receiver installed in the vehicles. The second aluminum plate, not mentioned in the above article, also holds an omni-directional antenna, and was subsequently used to monitor additional signal statistics not available on our original signal monitor. The second omni-directional antenna is monitored with a Sencore AT1506 8-VSB signal analyzer loaned to us by NHPTV. These additional statistics give us more information from the demodulator such as EVM (error vector magnitude), multipath echo data, etc. The original signal monitor logs signal-to-noise ratio exclusively, and is the same receiver installed in the vehicles.

]]> http://www.eceblogger.com/2007/06/rooftop-rain-event-logging-station/#comment-28 andrewkun Mon, 25 Jun 2007 12:55:49 +0000 http://www.eceblogger.com/?p=50#comment-28 You have two aluminum planes - why? You have two aluminum planes – why?

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