Elecraft PX3 Owner's Manual - Manual (Page 2)

2
For Owners of the Elecraft K3
Transceiver and P3 Panoramic Display:
The PX3 has nearly all of the same features as the
P3*, including the same high-resolution color display,
2 to 200 kHz SPAN, fast sweep rates, and eight
programmable “hot keys” to do quick setup. The
primary difference between the two is in the interface
to the transceiver. The P3 digitally down-converts the
K3’s 8.215-MHz I.F. signal, while the PX3 uses
quadrature baseband demodulation (I/Q) to convert
signals from the KX3’s RX I/Q output jack. The
PX3’s method requires less interface and
demodulation circuitry, resulting in a significantly
lower-cost unit with lower power consumption
(consistent with portable use). For details on how
baseband I/Q demodulation impacts performance, see
PX3 Compared to the P3 and PC-Based Panadapters
on page 32
* “Fixed tune" mode is not yet available in the PX3.
If this feature is added at a future date, it may have
somewhat different performance than in the P3, in
terms of displayed bandwidth and allowed offset from
the currently-tuned frequency.