What's the duration of the communications link?
it is a 24/7 communication link, every second.

Is it one-to-one or one-to-many?
one-to-many

What type of messages?
short, status monitoring

What's the terrain?
Horizontal, maximum of 1 meter difference in elevation

Stapled to tree trunks or utility poles, buried in a trench?
Buried in a trench

Must it be taut or can it sag?
Can be sag

Thank you!!