Hitachi EC702HP Operation Manual page 121

Section 5 - System Operation Manual
(E-Compact ATSC Transmitters - EC701HP thru EC708HP)
Measurements
Menu Indications
Clock Measurements
Eqp. Power Supply
Manual Rev. 0.0 - August 2016
Measurements
Sub-Set Indications
Int GPS
Ext PPS
Ext 10M
Cur TS
Cur Cal
Last Cal
Time Lock
15V
8V
50V
This field displays NO SIGNAL or UNKOWN SIGNAL in the
absence of a proper input signal. When validated, shows the PPS
phase and frequency difference between this reference and the
current PPS obtained with the internal control system of the OCXO
(delivered on PPS output connector). When this input is identified
as current reference a message
frequency or phase locking process.
This field displays NO SIGNAL or UNKOWN SIGNAL in the
absence of a proper input signal. When validated, shows the PPS
phase and frequency difference between this reference and the
current PPS obtained with the internal control system of the OCXO
(delivered on PPS output connector). When this input is configured
as current reference a message identifies if the OCXO is in the
frequency or phase locking process.
This fi eld displays NO SIGNAL or UNKOWN SIGNAL in the
absence of a proper input signal. When validated, shows the
frequency difference between a PPS generated with this reference
and the current PPS obtained with the internal control system of
the OCXO (delivered on PPS output connector). When this input is
configured as current reference a message identifies if the OCXO
is in the frequency or phase locking process and the phase
difference is also available.
This field displays NO SIGNAL or UNKOWN SIGNAL in the
absence of a proper input signal. When validated, shows the
frequency difference between a PPS generated with this reference
and the current PPS obtained with the internal control system of
the OCXO (delivered on PPS output connector). When this input is
configured as current reference a message identifies if the OCXO
is in the frequency or phase locking process and the phase
difference is also available.
Current value of the frequency control of the OCXO, range
comprehended between 0 (0%, order of magnitude -1500ppb) and
262143 (100%, order of magnitude +1500ppb)
Last calibrated value (zero frequency difference and less then
100ns phase difference) of the frequency control of the OCXO,
range comprehended between 0 (0%, order of magnitude -
1500ppb) and 262143 (100%, order of magnitude +1500ppb)
Time counter since achieved lock
Status of power supply of 15V
Status of power supply of 8 V
Status of power supply of 50V
Description
identifies if the OCXO is in the
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