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Re: [Paparazzi-devel] strange modem problem

From: Roman Krashanitsa
Subject: Re: [Paparazzi-devel] strange modem problem
Date: Wed, 23 Mar 2011 11:25:46 -0700

Here is another idea. When you are using a low-power XBee modem at close range it works fine. But XTend is much more powerful (10mW or 50mW vs 1W). Try placing it father from your ground station.
Hope this helps,
Roman Krashanitsa

2011/3/22 Chris <address@hidden>
I have a strange problem with radio modem communication.
I finally made the joystick work perfectly well but only when i use the xbee 2.4 ghz modems at 9600bps.
Everything works fine when i use the Xbee pro modems at 9600 bps but when i try to use the 9xtend modems the joystick movements become erratic and the downlink data rate also becomes very slow  to the point of losing communication every 3-5 seconds according to the Link indicator of the GCS. The GCS takes a lot of time to populate (more than a minute!) when started.
Without the joystick the data rate is excellent and data upload to the aircraft is also very fast....
Has anyone seen this behavior before?

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