DX Engineering RPA-2 Modular Receive Preamplifiers DXE-RPA-2
SKU Part Number: DXE-RPA-2
DX Engineering RPA-2 Modular Receive Preamplifiers are completely redesigned versions of the RPA-1PLUS, with an internal slot that accommodates the...
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£302.40 £252.00
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DX Engineering RPA-2 Modular Receive Preamplifiers are completely redesigned versions of the RPA-1PLUS, with an internal slot that accommodates the addition of the optional 75 to 50 ohm Impedance Transformer Module. DXE-RPA-2 preamps are low noise preamps, optimized for the 300 kHz to 35 MHz range. They let you hear the weakest signals without artificially raising the noise. Meticulous craftsmanship and durable, robust components allow these preamplifiers to withstand high signal levels while providing superior dynamic range and third-order intercept performance that equals or exceeds most receiver and transceiver front-ends.

RPA-2 Receive Preamplifiers have key features added, as requested by our tech-oriented customers and enthusiasts:

- 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 accidently disconnected from the RPA-2.
- Alternatively, a simple internal jumper change allows the RPA-2 to be powered by DC on the feedline 

While many other common preamplifiers suffer from harmonic distortion, RPA-2 Modular Receive Preamplifiers include our exclusive, advanced push-pull design that eliminates harmonic distortion. Their high quiescent current increases their ability to handle strong signals without distortion or overload. These high performance devices must be powered with a well filtered and regulated DC power supply and will offer maximum performance at 12 to 18 Vdc input. Do not use a cheap wall transformer to power these top-of-the-line preamplifiers. 

Indoor installation at the back of the radio is recommended for RPA-2. For those who want to place them in an enclosure at a receive antenna system, a handy internal jumper allows these new units to be powered on the coaxial cable.

RPA-2 Receive Preamplifier Specifications:

-Input and Output Connectors, female: BNC and F 
-Frequency Range: 300 kHz to 35MHz
-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 kHz BW)
-Power Requirement: 12-18 Vdc, 140 mA max.

DX Engineering RPA-2 Modular Receive Preamplifiers offer superior receiving results on crowded medium wave and shortwave bands as well as on the ham bands. SWLs and Radio Amateurs around the world have come to rely on the advanced operational performance of DX Engineering Receive Preamplifiers. 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. Order your DX Engineering RPA-2 today!


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If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

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Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]