Retevis RT97S GMRS repeater base station receives and transmits at the same time through a built-in duplexer, so one antenna relays walkie talkie signals beyond handheld-to-handheld distance. Eight default GMRS channels switch with a long press, with a short press for volume.
A DB-9 female connector accepts a microphone directly and works with Raspberry Pi to link multiple RT97S units for wider coverage. It pairs with models such as RT76, RT76P and RB26. GMRS license required; antenna and linking parts come only with selected bundles, and some duplexer loss is normal.
Retevis RT97S - Highlights
Full-duplex relay
Listens and repeats at once to carry emergency and crew calls past handheld range.
Built-in duplexer
Runs on a single antenna without an external duplexer box.
Linkable base stations
DB-9 port allows Raspberry Pi linking of several RT97S units to stretch coverage.
8 GMRS channels
Channel button switches channels on the box; custom frequencies available on request.
Retevis RT97S - Specifications
Type: Full-duplex repeater base station
Channels: 8 default GMRS channels
Duplexer: Built-in
Connector: DB-9 female for microphone / Raspberry Pi
Compatibility: RT76, RT76P, RB26 and other GMRS radios
Radio service: GMRS, licensed
Brand: Retevis
4.0★★★★★★★★★★(6)
5 ★1
4 ★4
3 ★1
2 ★0
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Customer Reviews
6
★★★★★★★★★★4.0
p***d
Verified
Coverage is way better around our place now.
★★★★★★★★★★3.0
q****h
Verified
Helps a bit, still figuring out the best spot for it.
★★★★★★★★★★4.0
q**a
Verified
Was pretty straightforward to get going.
★★★★★★★★★★4.0
c***l
Solid little box, just sits there doing its thing.
★★★★★★★★★★4.0
i*****o
Verified
Voices come through clear from farther out.
★★★★★★★★★★5.0
u***o
Verified
Nice boost
We can actually talk from the barn to the house now, great.
