DXE-RPA-2 Modular Receive Preamplifier

RPA-2 Modular Receive Preamplifiers are newly designed versions of the RPA-1 with internal slots for accessory modules.

They accommodate the addition of the one optional plug-in module, such as the 75 to 50 ohm Impedance Transformer Module, or the Receiver Guard 5000HD Plug-In Module, or the DX Engineering Clifton Laboratories Z10020 AM Band Filter Module.

DXE-RPA-2 preamps have very low internal noise and are optimized for the 300 kHz to 35 MHz range. They help you hear the weakest signals without artificially raising the noise.

Modular Receive Preamplifiers offer superior receiving results on crowded medium wave and shortwave bands as well as on the ham bands. You will be able to pull in the weakest signals and snag that rare one, under the most difficult conditions, when you need it the most.

Features

• Internal slot accommodates the optional 75 to 50 ohm Impedance Transformer Module to accomplish typical receive antenna feedline to equipment transitions without losses
• Also allows direct connection to 50 ohm receive antenna feedline BNC connectors with no transformer required
• Internal slot for DXE-RG5000HD-PM Receiver Guard 5000HD Plug-In Module – Front-end protection for the RPA-2
• Secure BNC female connectors and receive-system friendly F female connectors remain; both prevent accidental connection to transmitting devices with UHF connectors
• A green LED indicates when DC power is present and the preamplifier circuit is engaged.
• An ingenious positive-capture threaded-sleeve 2.1 mm power connector that ensures the DC power cannot be accidentally disconnected from the RPA-2.
• Alternatively, a simple internal jumper change allows the RPA-2 to be powered by DC on the feedline

Specification

• Input and Output Connectors, female: BNC and F
• Frequency Range: 300 kHz to 35 MHz
• Gain: 16 dB, +/- 1.5 dB (over entire frequency range)
• Output Third Order Intercept: 43 dBm
• Noise Figure: 3.5 dB
• One dB Compression Point: +26 dBm (400 mW output)
• Dynamic Range, IM3: 110 dB or greater (500 Hz bandwidth)
• Power Requirement: 12-18 Vdc, 140 mA max.