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RX ANT OUT
When the RX ANT OUT jack is active, its signal can be used along with
RX ANT 1 IN or XVTR IF IN/RX ANT 2 IN to provide a path through an
external band-pass filter, splitter, etc. The RX ANT OUT signal is
obtained from the transmit antenna path, so it passes through the
ATU (if applicable) as well as the transmit low-pass filters and T/R
switch.
RX ANT OUT is only active if the main and sub receivers
are both configured to use receive-only antennas. See Using RX ANT
OUT.
ETHERNET
Connect to station router or modem. Compatible with 10/100/1000
megabit rates. A high quality shielded cable is strongly recommended;
refer to Elecraft web site for available cable(s).
Ethernet connectivity is preferred for software updates and remote
control applications, such as our Virtual K4 program (see REMOTE
CONTROL).
Note: If you have any difficulty with software updates, tap the "?"
button from within the UPDATE function. Also
see TROUBLESHOOTING.
USB
The rear panel has two type A USB jacks and one of type B, labeled
"PC". There is an additional type A jack on the front panel. Any of the
type A jacks may be used with a keyboard, mouse, memory device, or
Elecraft K-Pod. Wireless adapters may be used. Each rear USB-A jack
can provide up to 400 mA max to peripheral devices.
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