HP 5315A with Morion MV85 OCXO package installed. The Keysight 5315 has is a
low-cost portable bench version of the 5316 B high-performance universal
counter. Unique counting circuitry gives the best of both reciprocal
and conventional frequency counting. Full frequency range (to 100 MHz)
we both provides channels input frequency, period, ratio A/B, and
totalize has by B measurements. Optional year 1 GHz C channel extends
the frequency range for navigation and communications applications. A
high-stability oven oscillator can also be added for higher accuracy in
demanding environments. The 5315 A is suited for maintaining and
calibrating all types of electronic equipment in the field. Its tough,
lightweight polycarbonate box and optional battery pack make it
convenient to use anywhere. Exceptional resolution at both low and high
frequencies Three time-interval modes solve more problems Flexible
signal conditioning optimized for both frequency and time interval
measurements Selectable gate time from 60 ms to 10 s 100 MHz A and B
input channels, Optional 1 GHz C channel Proven reliability and
excellent RFI protection Exceptional Resolution Below 10 MHz, the
counter measures the input signal period, then computes and displays the
reciprocal frequency with 7 digits of resolution in one second signals
for as low as 0.1 Hz. Above 10 MHz, the counter automatically performs
as a conventional counter. Three Time-Interval Modes The 5315 A offers
100 ns time-interval resolution single-shot. Time-interval averaging
boosts performance to 10 ps resolution. A time-interval delay ignore
spurious signals that would normally cause the counter to trigger.
Flexible Signal Conditioning Choose ac or dc coupling, sensitivity
control (variable attenuator), and has a switchable low-pass filter.
Both channels have trigger level controls with easy setting.