repeater

If you need a repeater somewhere well, like your laptop, your repeater isn't going to have a good connection with the base station.

That just means that the adversary needs to get the repeater closer to you.

RF is barely usable (if at all) without line of sight, and putting a repeater in the sky is a rock-solid method of getting line of sight.

Yes, a passive repeater as you described helps at least in some cases, and they are permitted.

One way to make it work untethered indoors is to simply bridge the satellite downlink box to a wifi repeater.

Most people don't know how to improve Wi-Fi in their house aside from adding a wireless repeater (which reduces your bandwidth).

Our internet data centers use cutting edge wireless radio transmitters to transmit high speed signals to repeater sites throughout the city.

Each is a repeater for the other: Whatever the car sends is picked up by device B and repeated by device A.

Fiber will happily go longer distances without much chance of interference or repeater issues.

Many radio engineers are also licensed amateurs (how else do we get an amateur repeater on a 750 foot commercial tower?).

Exactly: It's not simply an amplifier, it's a repeater.

Homes and businesses connect to those repeater sites through a small radio modem, which we provide, that creates your personal high speed network.

And yet, they've had to install "GPS repeater beacons" to work around this problem.

Mesh improves upon certain arrangements of $35 Motorola FRS handhelds, but not all of them (whereas "repeater in the sky" architectures are unfazed).

"redstone repeater w/ shutoff"[3] - About a year later, the "diode" repeater gained another input that turns it into a D-latch.

"redstone repeater" - A diode with a configurable 1-4 tick propagation delay.

Repeater network will have enormous fixed cost, but I don't think its variable cost will be higher than spaceships.