Any clue about their range (distance)? I just don't seem to be able to find this info online, perhaps wrong search keywords.

I am looking at using these for an 8km p-t-p and will be most grateful for your advise.

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Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254733744121/+254722743223
"I can't hear you -- I'm using the scrambler."