Preamplifiers with RX/TX switch

Our preamplifiers with transmit/receive switching combine a low noise figure, excellent large-signal performance, and integrated switching functions for installation close to the antenna. They amplify weak received signals in close proximity to the antenna and automatically disable the preamplifier during transmit operation. This protects the sensitive amplifier stages while transmitting, while allowing the full performance of the preamplifier to be utilized for improved receiver sensitivity during reception. The product family includes low-noise mast-mounted preamplifiers for individual frequency bands, dual-band versions, and high-power models for transmit power levels up to 2000 W PEP. Depending on the application, solutions are available with variable gain, remote powering, or enhanced power handling capability.


Discover the right preamplifier for your frequency range and power requirements, or contact us for individual advice.

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SP 70

Low-noise 70 cm masthead preamplifier with variable gain for the 430-440 MHz frequency range

Data sheet

SP 70 S

Low-noise 70 cm masthead preamplifier with 25 dB gain for the 430-440 MHz frequency range

Data sheet

SP 200

Low-noise 2 m masthead preamplifier with variable gain for the 144-146 MHz frequency range

Data sheet

SP 200 S

Low-noise 2 m masthead preamplifier with 18 dB gain for the 144-146 MHz frequency range

Data sheet

DBA 270

Low-noise dual-band masthead preamplifier for the 144-146 MHz and 430-440 MHz frequency range

Data sheet

MHP 70 R

Low-noise 70 cm masthead preamplifier with remote powering for 430-440 MHz up to 1500 W PEP

Data sheet

MHP 70 PRO

Low-noise 70 cm preamplifier with enhanced power handling for 430-440 MHz up to 1500 W PEP

Data sheet

MHP 200

Low-noise 2m masthead preamplifier with separate power supply for 144-146 MHz up to 1500 W PEP

Data sheet

MHP 200 R

Low-noise 2m masthead preamplifier with remote powering for 144-146 MHz up to 1500 W PEP

Data sheet

MHP 200 PRO

Low-noise 2m preamplifier with enhanced power handling for 144-146 MHz up to 2000 W PEP

Data sheet

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