78 MPC User Manual Rev 0D
Appendix A Technical Specifications
BACK PANEL 10 MHZ IN
Connector BNC female
Capture range 5 or 10 MHz ± 5 Hz
Sensitivity +9 dBm to +20 dBm into 50 Ω
FRONT PANEL 10 MHZ OUT
Short Term Stability (Allen Variance)
±1 x 10
-1
2
, 1 day
RF Output Power
10
± 3 dBm into 50 Ω
Output Waveform
Harmonics:
Spurious:
Sine wave
-15 dBc
-80 dBc
Phase Noise @10 Hz: -125 dBc/Hz
@100 Hz: -155 dBc/Hz
@1 kHz: -165 dBc/Hz
RF Output Connector BNC Female
FRONT PANEL 1PPS OUT
Connector
BNC Female
Signal Description A one-pulse-per-second normally high, active low pulse
(1 ms) where the falling edge is the reference.
Output level Voltage: High > 2.0 VDC
Low < 0.55 VDC
Min. load impedance: 1 KΩ
FRONT PANEL MARK IN
Connector BNC Female
Signal Description Normally high, active low input pulse must exceed 50 ns in
duration. The falling edge is the reference. LVTTL (contact
closure compatible).
Output Level Voltage: High > 2.0 VDC
Low < 0.8 VDC
Min. load impedance: 1 KΩ
* System calibration is required for “Absolute Accuracy” including antenna, cables and
MPC.
