Active T/R Switch - Linear Power Amp Passthrough

Name: Active T/R Switch - Linear Power Amp Passthrough
SKU: 33532
Price: 19.99 USD
Availability: InStock

H.F T/R Switch with linear Power Amp Passthrough

Designed by JasonKits QRP in Malta

Active T/R Switch - Linear Power Amp Passthrough 1

Active T/R Switch - Linear Power Amp Passthrough 2

Active T/R Switch - Linear Power Amp Passthrough 3

2024-02-12T11:59:58.837Z-image_67531777.JPG

2024-02-12T11:59:58.837Z-image_67520513.JPG

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H.F T/R Switch with linear Power Amp Passthrough

What is it? The T/R Switch listed was designed to accommodate the needs of extending the R.F power requirements of the ADX range of trx. The board features two relays that switch on during a TX cycle…

What is it?

The T/R Switch listed was designed to accommodate the needs of extending the R.F power requirements of the ADX range of trx.

The board features two relays that switch on during a TX cycle and revert back to RX mode when not transmitting.

An Attenuator is included on the board to attenuate the input to the linear amplifier.

Led indicators on board provide indication of the TX MODE and Power to the board.

A low pass filter is also included on the output of the Power Amp to attenuate any harmonics.

Linear Amp : can be any linear available online.

Why did you make it?

I need to test an new antenna and needed more juice ! so i hooked a 45w PA to it .. but i needed a way to switch the trx .. so i designed the t/r switch .

What makes it special?

uses BNC Connectors
12v input for control circuit - small wallmart plug !
Independent switching of PA Supply - can be connected to another high current PSU
LED Indicators
On Board power resistor attenuator
On Board Low Pass Filter