BSRF AS-84 User Manual

About AS-84

Introduction

The AS-84 is a combiner and a splitter in a small form factor, featuring 4 inputs and 8 outputs. It has built-in wideband and tunable narrowband filters. The 4 inputs allow for zoning, which means summing signals from antennas to cover different places or a broader area.

Keypoints

• 2 antenna input pairs, selectable or summable
• Wideband and tunable narrowband filter built-in
• 12V regulated DC feed
• RF power bargraph
• Compact and rugged

What is needed with AS-84

• Power source (9-18V) and power cable (4 point push pull type)
• Two 50ohms coax cables for antennas (BNC), coax for receivers (SMA), and SMA loads for unused ports.

Description

Connecting

• Connects outputs to wireless receiver inputs (or combiner, splitter) [4/5].
• Connects inputs to antennas through coax cable [1/2].
• Connect power to DC [3].
• Pinout: 1,2: GND; 3,4: VIN
• Add DC feed on the requested port (DC) and select the input port (1 or 2 or 1+2 sum).

LEDs

Peak:

These LEDs light up when the signal exceeds the RF threshold. This threshold can be set in the menu.

DC:

These LEDs light up when the corresponding DC feed is applied to the port. It will blink if too much current is drawn or if there is a short circuit.

SW:

SW LEDs indicate which input channel is selected.

Display

OLED Display

Main screen displays (Illustration 1):

• Selected filter and frequencies
• RF bar power (-40 up to 0dBm)
• DC feed configuration
• RF input selection
• In-menu set thresholds

Illustration 1: Locked

(Image description: Display showing WB, 650MHz, dB values, DC: 0, SW: 1, RF)

Unlock

Press the switch until the locker is unlocked (right bottom side of display).

Filter

Press the switch and rotate the encoder to select WB (wideband) or NB (narrowband) filter. In NB, another press will allow you to tune the central frequency of the filter.

Illustration 2: DC feed selection (unlocked)

(Image description: Display showing WB, 650MHz, dB values, DC: 0, SW: 1, RF)

Illustration 3: NB filter tuning (unlocked)

(Image description: Display showing NB, 492MHz, dB values, DC: 0, SW: 1, RF)

DC Feed & Input Selection

Press encoder to select DC and rotate encoder to change the DC config. Do the same to change the SW config, which input is selected.

The '*' appears next to the item that can be modified using the encoder.

Illustration 4: Menu (default values)

(Image description: Menu showing RF th, Peak A, Peak B, Start freq, Stop freq)

Internal Circuits and Configurations

(Diagram description: A block diagram showing RF IN 1 and RF IN 2 connected to a switch/filter block, which then connects to a gain block, followed by a splitting block, outputting to RF OUT 1, RF OUT 2, RF OUT 3, and RF OUT 4.)

Using 4 antennas, two configurations:

• Extending zone: Area are overlapping. This means that antenna 1 and 2 receive the same signal in the overlapping zone.
• Multizone: Area are not overlapping. This means that antenna 1 and 2 do not receive the signal of the other zone (or with attenuation).

(Diagram description: Two diagrams illustrating zone configurations. The first shows two overlapping zones labeled 'Zone 1' and 'Zone 2'. The second shows two non-overlapping zones labeled 'Zone 1' and 'Zone 1'.)

Specifications

(Subject to change without notice)

Warranty

This 2-year limited warranty covers any defects in material or workmanship under normal use during the warranty period. During the warranty period, BSRF will repair or replace, at no charge, products or parts of a product that prove defective because of improper material or workmanship, under normal use and maintenance.

Send an email first at: contact@bs-rf.com