Anritsu MT8850A User Manual

 

Null packets mode 

The MT8850A/MT8852A is configured to make simple 
measurements on Null packets transmitted by the EUT. To 
return to standard Bluetooth operating modes press Scpt/Test , 
move the pointer to the script number and press the setup 
softkey.  Set “Script mode” to Standard. 

Role change not allowed During the connection process the EUT has attempted to 

become the piconet master. This is not allowed by the 
MT8850A/MT8852A which must always remain the piconet 
master. Reconfigure the EUT such that it does not attempt to 
become a master on connection. 

Signal Over Range 

The EUT power is greater than the input range of the 
MT8850A/MT8852A. The maximum input power for 
measurement is +23dBm. 

Signal Under Range 

The EUT power is below the input range of the 
MT8850A/MT8852A. The minimum input power to maintain a 
link is -55dBm, and for power measurements is –30dBm. 

Single Payload mode 

MT8850A/MT8852A has been configured to test an EUT by 
sending one test control at a time. This limits the speed with 
which a range of measurements can be made, but can improve 
reliability with EUTs that do not yet have a robust 
implementation of test mode signalling. To return to the 
standard Bluetooth operating mode press Scpt/Test,  move the 
pointer to the script number and press the setup softkey.  Set 
“Script mode” to Standard. 

Synchronisation error 

The EUT control RS232 control of the EUT has received an 
illegal sequence. 

Test stopping 

A test stop has been requested and the test is in the process of 
stopping. 

Unknown HCI command When under External HCI control, an unrecognised HCI 

command has been received. 

Unsupported feature 

The EUT has been requested to use a feature it does not 
support. 

Communication error 

The EUT has not acknowledged a communication from the 
MT8850A/MT8852A and the MT8850A/MT8852A has run out 
of retries. 

USB device attached 

A USB device has been attached and is ready. 

USB device removed 

A USB device has been removed. 

Non Bluetooth USB 
device 

The USB device attached is not a Bluetooth device.