BSRF AFB250 + AFR250-S
BSRF AFB250 + AFR250-S
Radio-over-fiber System
AFB-250. Dual Rx Antenna Fiber Box.
AFB-250 is designed to modulate radio signals from two receiving antenna to one optical Neutrik Duo APC output. Any passive or active antenna can be plugged in as it provides DC feed. DC feed are protected from short-circuits. A RF peak led indicate if RF field is too strong. A built-in 10dB RF attenuator can be activated on start up of device. With its rugged housing and 12V on XLR4 power, it is designed for location or live market.
AFR-250S. Small form factor dual radio over fiber receiver.
The AFR-250S is a optical/RF converter. Used with the AFB-250 it let you take advantage of propagation of light on monomode fiber.
Tha AFR-250S can be used in several situation, it can be used on sound cart, in a bag or integrated in a watertight case. If you need, up of 4 units coud be fixed on a 19″ bar (ask us for more informations).
The 1.3″ OLED display shows importants informations:
- RF level on each channels
- Optical loss on each channels
- Power supplies voltage
- Attenuator’s values on each channels
Leds light up to indicate too strong RF signal or too much optical loss.
Setting attenuator will help expert to fine tune sensitivity/noise in multi antenna situation.
There is two way of powering the AFR-250S, the classical one is through a DC push pull connector, the other one is through the DC feed voltage comming from receiver or active antenna splitter/combiner. The AS-62 and AS-122 can be used to power it.
The AFR-250S enclosure is made of aluminium, build to last and recyclable.
Advantages of optical fiber:
- Low loss, 0.5dBm/km to all frequencies (0.4dB/km with RG58, 0.2dB/m with RG213 and 0.06dB/m with 1/2″cellflex @700MHz)
- Monomode fiber is low cost
- Electromagnetic isolation
- Light weight:150m on drum is 2.3kg (100m of RG213 is 14kg)
- Much easy to deploy, low radius of curvature.
- Complete isolation between antenna and receiver.
System is completed by Neutrik NKO2SA-A-3-150 OpticalCon Duo Monomode Fiber Drum, 150 metres long.
