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performance of your station while providing the best possible protection for your radio. The Receiver Guard does
not
pass DC. If you are using the Receiver Guard in a system that requires a DC voltage, insert the DC as shown
in
Figure 7
.
This is a
Receive Only
Accessory
Do not connect the DXE-RG-5000HD Receiver Guard
to a transmitter output
DO NOT TRANSMIT through the Receiver Guard
The Receiver Guard is is NOT a filter. The Receiver Guard operates by clamping or limiting
very strong RF signals
Features
Keeps stray high levels of RF from damaging your receiver input
Ideal for separate 160 and/or 80 meter receive systems
Uses state of the art components for maximum protection of receivers
Under 6 nsec response time
Multi-Stage protection
Very low insertion loss
Uses BNC type connectors to avoid accidently connecting to a transmit line
Has been developed and tested in a world-recognized multi-multi contest station
Specifications - DX Engineering Receiver Guard
Frequency Range:
0.5 through 150 MHz
Insertion Loss:
< 0.15 dB at 50 MHz, < 0.3 dB 50 MHz up to 150 MHz
VSWR:
< 1.2:1
Max Output Level:
RG-5000HD:
+14 dBm at 10 W input. RG-5000: +10 dBm at 10 W input.
Maximum Power Handling:
10 W CCS (Continuous Commercial Service)
System Impedance:
50 to 75 ohms, unbalanced
Connectors, Input and Output:
BNC
Operations with the DX Engineering Receiver Guard
Receiver front-end circuitry is susceptible to damage from very strong signals arriving via the antenna from
nearby high power transmitters. Dedicated receivers and certain transceivers with separate receive-only antenna
inputs generally lack protection from unintended overload and damage.
Dedicated band pass, low pass and high pass filters offer high levels of protection in engineered systems.
However, they are generally expensive and are designed to handle specific offending signals. Other front-end
saving units temporarily disconnect the receiver input for a high level of protection, but they require extra keying
connections. Plus, rapidly keyed relays that produce noise and pulses cannot be used on receive antennas in
contesting stations.
The Receiver Guard is an advanced multi-stage receive signal limiting device that is virtually RF transparent at
normal receiving levels, all the way up to -10 dBm, or approximately 63 dB over S-9. In typical operations,
installed on the RX Input of the transceiver or dedicated receiver, you cannot tell that the limiter is installed. At
