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Bias Tee BOX AC/DC SMD manual

This bias tee box is used to insert AC or DC power into an HF signal to power remote antenna preamplifiers (DC), Bi-directional beverages (AC) or other devices. It is usually positioned at the receiving end of the coaxial cable to pass AC or DC power from an external source to the coaxial cable running to powered device. A bias tee consists of a feed inductor to deliver AC/DC to a connector on the device side and a blocking capacitor to keep power supply from passing through to the receiver. Bias tees are used in a variety of applications, but are generally used to provide an RF signal and power to a remote device where running two separate cables would not be advantageous. This box offers something more like: High Pass Filter (100 kHz), protections, variable attenuator and input common-mode filter.



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Applications
Settings
Previous versions
Product details


Applications

- Providing an RF signal and (AC or DC) power to a remote device over one coax
- You can use bias tee BOX on both sides as power IN and OUT from RF coax
- You can set ATT when you have too high gain of preamp
- Great FOR: preamplifiers, Bi-dir beverages4-way antenna switch etc.



 bias tee box acdc qro.cz hamparts.shop



 bias tee box acdc qro.cz hamparts.shop



 bias tee box acdc qro.cz hamparts.shop



example with Preamp Box and Bi-Dir beverage

bi-dir beverage with bias tee and preamp box qro.cz hamparts.shop

version with PL SO-239 connectors

bias tee box acdc pl so-239 qro.cz hamparts.shop



version with F connectors

bias tee box acdc f qro.cz hamparts.shop



Settings

bias tee box acdc settings jumper settings qro.cz hamparts.shop

1. Output diode limiter

- There is output diode limiter when the jumper is shorted. This RF limiter cut signals stronger than typ. 20 dBm (100 mW) @ 50 Ohm

2. Variable ATT jumper

- Variable attenuator could be switched ON. You can use it in case the preamplifier in field does have too much gain

3. Variable ATT trimmer

- This is 30 turns trimmer, you can adjust attenuation by it



Block diagram

bias tee box acdc block diagram qro.cz hamparts.shop


Previous versions

   Manual for previous versions: manual

Product details

Included in package

Bias Tee AC/DC assembled and tested

Box dimensions (mm) 100x100x50 - PU box IP56
PCB dimensions (mm) 95x95 mm
Weight brutto (kg) 0.28 to 0.33 kg

Manufacturer:

Ing. Jan Šustr
ID 05476356, VAT CZ8407024780
Palachova 1777/7, 591 01 Žďár nad Sázavou, Czech republic, Europe

General instructions:

Please also read general instructions before handling the product.

European Union Declaration of Conformity

Manufacturer Ing. Jan Šustr (QRO.cz):

ID 05476356, VAT CZ8407024780
Palachova 1777/7, 591 01 Žďár nad Sázavou, Czech republic, Europe

declares that the assembled product:

BIAS TEE BOX AC/DC SMD

is compatible with the relevant Union harmonisation legislation directives:
EMC Directive 2014/30/EU
ČSN EN 61000-6-3 ed. 2
ČSN EN 61000-6-1 ed. 2 (333432)

On behalf of Ing. Jan Šustr (QRO.cz)
Ing. Jan Šustr, CEO
21st March 2023

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RX preamplifier with variable gain, protections and power over coax.
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A bias tee is used to insert DC power into an HF signal to power remote antenna amplifiers or other devices.
43.56 € (tax incl.)
A bias tee is used to insert AC or DC power into an HF signal to power remote antenna preamplifiers (DC), Bi-directional beverages (AC) or other devices.
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