Elecraft PX3 Owner's Manual - Manual (Page 6)

6
Quick-Start Guide
To get started using your PX3 right away, please read this page and the pages that follow, to connect your PX3
to your KX3 and explore the features and controls.
Figure 1. PX3 Front Panel.
Prepare your
KX3
 Ensure your KX3 is equipped with Firmware version 2.19 or later: See your KX3 Owner’s
Manual for information about checking and updating the firmware if needed.

In the KX3 menu, set RX I/Q: On and exit the menu.
Setup and
Connections
Position the KX3 and PX3 as shown in the photograph on the cover, with the PX3 on the left
side of the KX3. This keeps the PX3 away from the RF fields around the KX3’s antenna
connectors that can interfere with the PX3.Do not substitute longer cables for the PX3CBL set
provided. Doing so may allow noise pickup from various sources, including switching power
supplies, 60-Hz AC, ground loops, and interface cables. You can pass the PX3CBL cables
connecting the KX3 and PX3 under or behind the PX3.
When adjusting the legs to position on your PX3, be sure the thumb screws are loose.
They thread into the legs, and forcing a leg into position without loosening the thumb
screw may tighten the thumb screw so much it becomes very difficult to loosen.
Connect a dc power supply to the 9-16 VDC input jack on the PX3 side panel (see
Specifications, page. 10 for more about the power requirements). A power cable with a right
angle 2.1 mm barrel connector is supplied. Connect the wire with the white strip to the positive
(+) terminal on your power supply. If you purchased the optional PWA121V1A-US power
supply for your PX3, plug it into a 100 to 240 volt mains outlet. It is provided with a right-
angle cable adapter (PW2.1RA) that you can use for a neater cable installation.
We recommend that you turn off the external supply before connecting power to the
PX3. Some power connectors have an exposed center terminal that can create a short
circuit if it touches the metal ground when it is being inserted.
If your KX3 installation includes the Elecraft KXPA100 amplifier connected using the
KX3 to KXPA100 Adapter Cable, connect the PX3 as shown in Figure 3on page 9.
If you do not have the KXPA100 and adapter cable, connect the PX3 as shown in Figure
2 on page 8.