LDI Intellectual Property.
Not for secondary distribution or replication, in part or entirety.
DIGISONDE-4D
SYSTEM MANUAL
VERSION 1.2.11
2-14 SECTION 2 - INSTALLATION, SETTING UP AND FIELD VALIDATION
POWERING ON THE RF AMPLIFIER AND ANTENNA SUB-SYSTEM
CAUTION
THE TRANSMIT ANTENNAS MUST BE CONNECTED TO THE SOUNDER PRIOR TO
APPLYING POWER
2:48. To power on the RF amplifier, simply turn the power switch on the front panel of the Power Amplifier
Switch to ON.
NOTE
The power switch on the Power Amplifier Chassis front panel energizes the power amplifier ONLY,
not the entire system.
CONFIGURATION MANAGEMENT OF SITE-SPECIFIC DATA
2:49. Each sounder is pre-configured for its destination site prior to shipment. However, site-specific data
may need to be adjusted in case of relocation, changes to instrument configuration, or availability of more
precise site-specific data.
2:50. The following ID tags are assigned to each sounder:
STATION ID. A unique 3-digit number that is used to label all data products. REQUIRED. Post-analysis
software reads the Station ID from the data records to locate Station UDD file with station
constants, including location at which they were acquired and the sounder configuration.
The Station ID shall be changed if the sounder is relocated, unless its operations imply
constant relocation. Changes to Station ID shall be coordinated with LDI where a reposi-
tory of Station IDs is maintained to avoid conflicts with existing IDs. It is possible to keep
history of minor configuration changes in Station UDD file without changing the Station
ID. For example, it is possible to reflect upgrades to the sounder’s hardware and antenna
array pattern and retain the same Station ID.
URSI CODE. A unique 5-character code given by the URSI to observatories. REQUIRED. The URSI
code is associated with the location of the sounder, not its model or hardware configura-
tion. The URSI Code is written in the SAO records holding ionogram-derived data to be
reported to the WDC and other users.
SERIAL NUMBER. A unique number given to each DPS sounder made by LDI, in the sequence of their
production. PROVIDED BY LDI. Serial number is not stored with the data.
2:51. Site-specific information can be found in the text files holding software configuration data. Table 2-1
enlists the configuration files.
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