Comtech EF Data CDM-Qx Spezifikationen PDF herunterladen (Seite 128)

CDM-Qx Satellite Modem Revision 5

Front Panel Operation MN/CDMQx.IOM

5–74

5.6.6.3 (UtilityRef) - REFERENCE ADJUST

Fine adjustment of the Internal 10 MHz reference oscillator is possible through this

menu. Use the STarrow keys to edit the value, then press ENT. The range of values is

from –2048 to +2047.

Note: The numbers displayed here do not correspond to an exact frequency increment. A

user should perform this fine adjustment while using an external frequency counter,

connected to either:

a. the internal 10 MHz reference, or

b. the Tx Output, set for CW, and an exact center frequency of 1000 MHz, for

example.

5.6.6.4 (UtilityID) – CIRCUIT IDENTIFICATION

Edit the Circuit ID string, using the WXand STarrow keys. Only the bottom line is

available (28 characters). The cursor selects the position on the bottom line (◄ ►) and

the character is then edited (ST). The following characters are available:

Space ( ) * + - , . / 0-9 and A-Z.

When the user has composed the string, press ENT. Backup devices in redundant groups

do not have an ID. If plug-in devices are to be grouped, the grouping should precede

assigning IDs so the group can be named instead of the individual devices.

Edit Circuit ID: (◄ ►,▲ ▼,

)

28 CHARACTER TST MESSAGE

Internal Freq Ref: Adjust

arm-up delay (▲▼, ENT)

1 2 ... 123 124 125 126 127 128 129 130 131 132 133 ... 257 258

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Comtech EF Data CDM-Qx Spezifikationen Seite 128