Overview

DX Engineering RTR-2 Modular Receive-Transmit Interfaces

DX Engineering RTR-2 Modular Receive-Transmit Interfaces provide the easiest and safest method for connecting a dedicated receive antenna to an HF transceiver that does not have a separate receive antenna input. Placed inline with the transceiver's antenna connector, the RTR-2 does the job of a 200 watt T/R relay using the amplifier keying line for failsafe protection, so your transmitted energy cannot go to the receive antenna. Three internal Plug-in Module option slots provide added features and protection:

* DXE-RPA-2-PM Receive Preamplifier Plug-in Module
* DXE-TRI-PM Transmit Receive Interrupter Plug-In Module
* DXE-IT-PM 75 to 50 ohm Impedance Transformer Plug-in Module

DX Engineering RTR-2 Modular Receive-Transmit Interfaces allow the standard transceiver owner to enjoy the advantages of separate receive antennas. For the unswitched receive antenna (RX ANT) port on expensive transceivers, the RTR-2 interface also adds inexpensive failsafe protection. The receive antenna line can be opened or grounded with the optional DXE-TRI-PM Interrupter plug-in module.

The RTR-2 is a very useful device for many applications, including:
* Connection of external receiving antennas to transceivers lacking external antenna ports
* T-R antenna switch for older equipment using separate transmitters and receivers
* Interfacing antennas to older phasing or noise cancelling systems
* Addition of a switchable receive preamplifier to any transceiver or transmitter and receiver combination
* Excellent failsafe receiver protection for close-spaced transmit and receive antennas, without performance degradation of diode circuits of other devices.

RTR-2 units feature a unique, failsafe connection method that prevents the hot switching and timing errors that are common on other transmit/receive relays. RTR-2 interfaces switch fast enough for partial break-in CW operation.

There are many simple applications for the new RTR-2 and now internal modules can add dramatically improved reception of those really weak signals on the crowded HF bands!

DX Engineering RTR-2 Modular Receive-Transmit Interfaces enable operators to enjoy improved reception with any low noise receiving antenna system. This shielded enclosure relay system provides a safe method of connecting a receive antenna, such as a Beverage, Active Receive system, or other receiving accessories to your radio.

Major features that make the DX Engineering RTR-2 Receive Antenna Interfaces your best choice for a receive T/R system device:

* New Status Indicating Color-changing LEDs
* Three internal slots for new DX Engineering modules
* New Key Line Out connector for Amplifier
* New internal jumper for placing DC on the Receive Antenna feedline for Active or Loop receive antennas
* Attractive and heavy stainless steel enclosure
* 200 watts RF switching capability
* Supports CW partial break-in
* Main transmit antenna connector is SO-239 (UHF female)
* Radio RF connector is SO-239 (UHF female)
* Receive antenna input is 75 ohm F connector
* Receive outputs are standard 75 ohm Type F connectors
* Inputs are 50 ohm BNC or 75 ohm F (Optional transformer module available)
* Safe switching--transmit antenna is always connected to transceiver on power-off
* Hot switching lockout--disables receive antenna during transmit mode (Optional DXE-TRI-PM can be set to short the RX ANT line)
* Versatile--allows inclusion of Optional RF preamplifiers and other plug-in modules
* Simple 13.8 Vdc input for all operations

An indispensable accessory for the DX enthusiast and useful for any Amateur's shack, DX Engineering RTR-2 Modular Receive-Transmit Interfaces can help you expand and improve your station's antenna connections and the protection of your equipment.

Documentation

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