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Directional coupler..

Dear Ken:
Since you stated the coupler was 'tested' at 406 Mhz. it was definitely not used on a cell site.
The SMA connectors will handle power to around 80 watts continuous, but 200 would be pushing the safe envelope.
Do you have any data concerning the connector for connection to outboard equipment?
It could be TTL, or RS-232 levels on the I/O for sensing forward/reflected power but write to the company with the info. you have on the device and obtain the spec sheet if available from Celwave, that would be the best course of action at this point in time.
Is there any tuning adjustments on the exterior of the coupler?
It may be a fixed tuned coupler that can't be adjusted outside the intended bandwidth.

Good luck.

Ernest A. Erickson, ka9uce, EN55
3960 Moen Lake Road
Rhinelander, WI. 54501

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Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
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