Note
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).
Specifications
Absolute Level Accuracy: ± 3 dB plus display resolution with KX3 preamp on.
Relative Level Accuracy: ± 0.1 dB plus display resolution
Display Update Rate: Selectable 1 Hz to 20 Hz (slower at narrowest spans)
Amplitude Scale: 10 dB minimum, 80 dB maximum
Span: 2 kHz minimum, 200 kHz maximum
Resolution Bandwidth: Span / 450, 8 Hz minimum
Power Requirements: 9 to 16 VDC. Approximately 195 mA at 13.8 VDC (max. screen brightness)
