At 1/31/2005 11:56 AM, you wrote:
>Off the top of my head, I'd be a bit cautious of the potential for
>saturation of the splitter cores from strong VHF field of the
>repeater transmitter. Cheap splitters, or splitters made a few years
>ago weren't designed for high levels of RF. Their cores can saturate
>easily.
I think I've experienced this in the past too. Good advice!
One test off the top of my head to check for low saturation is to measure
the loss from the common port to 1 of the split ports using a low signal
level (-50 dBm or so) & a moderately high level (20 dB or so higher that
you'd ever expect the splitter to see, maybe +10 dBm) & carefully measure
the loss to see if there is any difference. If there is then it's mixing
at that level as well as splitting.
BTW, the matched power rating for all the current Mini-Circuits power
dividers is +27 dBm or higher, so no IMD issues with those units.
Bob NO6B
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
