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E2730A VXI RF TUNER
3.4.10 MAINTENANCE MESSAGES
Command
ADC?
ATI nrf
ATI?
ATR nrf
ATR
BND nrf
BND?
#MEM nrf,nrf,nrf
OPERATION
The commands in this message category are for maintenance operations
only. These commands are not intended for normal applications and may
interact with normal operations of the tuner. Powering the tuner down and
back up will eliminate any of those interactions and return the tuner to
normal operation. The mnemonics associated with this message category
are listed in Table 3-16.
Table 3-16. Maintenance Messages
Response
ADC nr1,nr1,...nr1
Request ADC Reads for all eight inputs to the ADC.
Set IF attenuators.
Range: 0 to 30, 2-dB steps
ATI nr1
Request current IF attenuator setting.
Reset : ATI 00
Example: ATI 14
Set RF attenuators.
Range: 0 to 30 - 2 dB steps
ATR nr1
Request current RF attenuator setting.
Reset: ATR 00
Example: ATR 22
Sets the preselector band.
Range: 1-2
Where:
1 – Selects the lower preselector band. (0-982 MHz)
2 – Selects the upper preselector band. (982 MHz +)
BND nrl
Returns the active preselector band.
Reset: BND 1
Default: BND 1
Write to receiver memory location.
unprotected. Any writes to incorrect locations can cause the
tuner firmware to crash. Powering down and back up will
restore normal operations.
Field
Description
Parameter
1
Memory Size
2
Memory Address
3
Data Value
This command is
Range
0 - byte; 1 – word;
2 - long word
0 to 4294967295
0 to 255 (byte range), 0 to 65535
(word range),0 to 4294967295
(long word range)
3-31
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