Use the DX Engineering RSC-2 to combine two receiving antennas to form an array or to split the signal from an antenna to feed two receivers. The RCS-2 reduces problems and performance shortfalls caused by impedance errors in less-than-perfect antenna systems.

• Metal housing for superior shielding and longer life
• High quality components
• Internal spark gaps and large ground planes for improved lightning protection
• Reliable CATV F connectors standard
• Broad, 0.3 to 30MHz operating range with 75 Ω systems
• Economical solution to potential impedance errors

Combining
Use the RSC-2 to combine, with negligible loss, two 75 Ω antenna systems into a single 75 Ω feedline. Some examples are two 75 Ω antennas forming an in-phase (broadside) receiving array, Cross-fire Echelon Beverage array, or any type of array with fixed phasing. There are a number of advantages of using the RSC-2 for combining antenna systems over a standard parallel connection.

• The RSC-2 matches the entire antenna system to 75 Ω. A parallel connection divides the impedance to 37.5 Ω.
• Unlike quarter wave matching sections that only work on one band, the RCS-2 has an extremely wide bandwidth.
• With antennas connected directly in parallel, if either one develops a high impedance open, becomes shorted, falls down or has a feedline problem, the entire antenna system may become unusable. By using the RSC-2, only the problem antenna is unusable, the antenna on the other port can still be used. Due to the built-in isolation and balancing, the RSC-2 limits the total signal loss to approximately 6 dB.
• The RSC-2 provides very high isolation between ports 1 and 2. This prevents either antenna from interfering with the other during normal operation

Splitting
Use the RSC-2 to split an antenna signal in two, typically to feed two receivers. Typical signal level reduction through the RSC-2 when used as a splitter is just over 3 dB per port. This is because each port receives half the available input power, and the RSC-2 has some very small additional loss in internal components. As with any system, losses are based on source and load impedances being 75 Ω. The RSC-2 normally provides equal power, voltage, and current to matched loads on ports 1 and 2. The primary advantage of the RSC-2, when feeding multiple receivers from one antenna, is each individual receiver will not seriously affect the signal level of the other receiver. This prevents receiver band filters attached to one port from “shorting” or loading the signal of another receiver tuned to a different band. In addition, any spurious signals generated in one receiver are greatly attenuated by the other RSC-2 before reaching the second receiver.

DXE-RSC-2 Two-port Splitter/Combiner Instructions (168K pdf)

When used as a splitter, the typical loss through the RSC-2 is just over 3 dB per port. This is because each port receives half of the available signal. The RSC-2 has very small additional losses in its internal components.When splitting in-phase signals, the loss is somewhat less.

Losses are based on source and load impedances being 75 Ohm.

The RSC-2 is passive device, therefore requires no power to operate.

Any unused port must be terminated at 75 Ohm.

All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering's sole obligation under these warranties shall be to issue credit, repair, or replace any item or part thereof which is proved to be other than as warranted; no allowance shall be made for any labor charges of Buyer for replacement of parts, adjustments or repairs, or any other work, unless such charges are authorized in advance by DX Engineering.

If DX Engineering's products are claimed to be defective in material or workmanship, DX Engineering shall, upon prompt notice thereof, issue shipping instructions for return to DX Engineering (transportation-charges prepaid by Buyer). Every such claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing.

The above warranties shall not extend to any products or parts thereof which have been subjected to any misuse or neglect, damaged by accident, rendered defective by reason of improper installation, damaged from severe weather including floods, or abnormal environmental conditions such as prolonged exposure to corrosives or power surges, or by the performance of repairs or alterations outside of our plant, and shall not apply to any goods or parts thereof furnished by Buyer or acquired from others at Buyer's specifications. In addition, DX Engineering's warranties do not extend to other equipment and parts manufactured by others except to the extent of the original manufacturer's warranty to DX Engineering. The obligations under the foregoing warranties are limited to the precise terms thereof. These warranties provide exclusive remedies, expressly in lieu of all other remedies including claims for special or consequential damages.

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