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Chapter 6 163
Configuration - Screens and Control Fields
Base Freq (User Defined) Base Freq (User Defined)
Base Freq (User Defined)
The base frequency field sets the RF generator reference for channel 0
(zero) when the RF Chan Std field is set to USER-DEF, and the RF
Display field is set to Chan
.
Channel frequencies are calculated using the following formula:
Channel N = Base Frequency + (N)(Channel Spacing)
The Base Frequency is calculated using the following formula:
Base Frequency = Channel 1 Frequency − Channel Spacing
For example, if your multi-channel radio’s lowest receive channel
frequency is 870.030 MHz and the system channel spacing is 30 kHz,
you would enter 870 MHz in this field. You would also use the Chan
Space and (Gen)-(Anl) fields to tell the Test Set where other
transmit and receive channel frequencies are in relation to the base
frequency, and whether or not the system is duplex.
For more information see the following related topics:
"Chan Space (User Defined)" field on page 164
"(Gen)-(Anl)" field on page 169
"RF Chan Std" field on page 175
"RF Display" field on page 176
Operating Considerations
The value of this field is only used if the RF Display field is set to
Chan, and the RF Chan Std field is set to USER-DEF.
Screen(s) Where Field is Present
INSTRUMENT CONFIGURE
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