4. Audio Test Method and Specifications
A. Test Method
Power Required
6V DC 400mA (one for Tx, one for Rx)
Rx Resistive Load
10 KΩ
Audio Analyzer Filters
AES17 LPF “IN” unless otherwise specified
Tx Input Conditions
997Hz @ -3.5 dBV = Full Scale Input
Rx Output Level
Maximum * (Set by Volume Control)
Distance Apart
No closer than ~1 m **
Notes
• Nodes should be tested on ESD safe surfaces and ideally elevated above surface on ESD safe mounts.
• Cables should be as far away as possible from equipment that can introduce noise into nodes. (i.e. CRT monitors, AC Transformers,
etc )
• Batteries can be used to eliminate 50/60Hz noise.
• The antenna orientation shown is for audio testing. A different antenna orientation may be better suited for maximum RF range
performance.
* Evaluation Kits are shipped with output level set to MAX.
** To avoid RF swamping.
www.ElevenEngineering.com
HT-222 Evaluation Kit Instructions
DO4927|
2009.11.05
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