BT-100 Bias-tee Power Amplifier

$30.00

Bias-tee powered Power Amplifier (TX) for the bladeRF 2.0 micro

SKU: BT-100 Categories: ,

Description

Kit includes:

  • 1x BT-100 Bias-tee Power Amplified

Documentation:

Compatible with:

Key features:

  • Features Mini-Circuits PHA-1H+ MMIC Amplifier – 50MHz to 6GHz MMIC
  • Power consumption: 200mW
  • Blue LED power indicator
  • Gain: +15.7db @ 200MHz, +11dB @ 2.4GHz
  • Noise figure: +1.6dB @ 200MHz, 3.1 @ 2.4GHz
  • Minimum output IP3 of +38dBm

bladeRF-cli command:

  • Enable module: set biastee tx on
  • Disable module: set biastee tx off
  • Query system power consumption: print hardware

 

The BT-100 is a wideband bias tee TX Power Amplifier (PA) that draws its current from the bladeRF 2.0 micro’s SMA connectors. The BT-100 is versatile PA that is an ideal intermediary or final stage amplifier in a TX chain. bladeRF-cli and the libbladeRF API can be used to enable and disable the bias-tee when it is needed. Care should be taken to avoid overdrawing current when powering the bladeRF 2.0 micro from USB bus power and enabling multiple bias-tee amplifiers simultaneously. In case the power budget (print hardware in bladeRF-cli) is a concern, the bladeRF 2.0 micro can be powered by an external DC power supply.

The BT-100 is backwards compatible with the bladeRF 1.0 and other transceivers. However, J3 must be populated and FB1 may need to be removed to prevent back-feeding DC voltage into ESD diodes and other sensitive circuitry that may exist and cause damage. Check the SDR’s schematic to determine the necessary precautions. Connect a +5VDC supply to J3.1 and ground to J3.2. Refer to the schematic for details.


NOTE: The BT-100 can only be plugged into the TX ports.

Frequently Asked Questions:

How can I tell if the PA is enabled?
A green light will appear on the BT-100 if the program or tool you are using enables the bias-tee. In addition to the command line commands listed above, add “biastee=tx” to gr-osmosdr sink blocks to enable BT-100 from within GNU Radio.

How many BT modules can be added to the bladeRF 2.0 micro?
All 4 ports of the bladeRF 2.0 micro are powered, so any and all RF ports can have a bias-tee module installed and powered.

Additional information

Weight 0.2 lbs
Dimensions 1.5 x 1 x .5 in

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