One HF emitter,
one distant antenna, one built-in amp.
The AFB-350 is a Radio-over-Fiber emitter box designed to drive a remote transmit antenna from the control room. Built-in 500 mW amplifier on a single carrier, −113 dBm/Hz noise density, built-in SWR indicator, XLR4 12 V power. 100 MHz – 1 GHz band. Ruggedised for live. Made in France.
Bandwidth
100 MHz – 1 GHz
1-carrier power
500 mW (27 dBm)
2-carrier power
100 mW
IMD3
−45 dBc @ 2×20 dBm · df 1 MHz
Format
155 × 180 × 70 mm · 1,5 kg
Highlights
Standalone fiber emitter
One optical input → internal amp stage → one transmit antenna. The AFB-350 replaces a long coax run between control-room rack and distant antenna.
Fiber → amp → antenna
500 mW output
Built-in amp delivering 27 dBm on a single carrier. Two simultaneous carriers: 100 mW each while staying clean. Four carriers: reduce power accordingly.
1c → 500 mW · 2c → 100 mW
Built-in SWR indicator
One glance at the front panel confirms the antenna is properly matched. No need for an external analyzer to detect a crushed cable or a dirty connector.
SWR · front-panel LED
Specifications
The numbers that matter.
Condensed excerpt. See the datasheet for detailed conditions.
RF
Fiber & power
Mechanical & compliance
Use cases
Stage IEMs
Offset an IEM transmitter 200 m from the control room
ATH-200 in the control room → fiber → AFB-350 above the stage → transmit antenna: artists stay covered with no giant coax between rack and grid.
Distributed intercom / IFB
Cover multiple zones with one central transmitter
One ATH-200 feeds two AFB-350 in parallel, each driving an antenna in a separate zone. Uniform coverage without doubling transmitters.
Long-range HF camera
Drive a distant video return antenna
Remote AFB-350 on the shoot site → directional antenna aimed at the cameras: you extend HF video-return range without sacrificing noise.
Documentation
Everything you need before buying.
Datasheets and user manuals available in PDF format.
Product range
Other BSRF instruments.
Ready to emit at the far end of the fiber?
Available by quote, 2–3 weeks delivery.