Version 1.7.5 is compatible with all 3901, 3902 and 3920 models of the 3900 Series
product line.  Version 1.7.1 is the MINIMUM version required to be used with the new
3920 variant of the 3900 Series.
 
Analog Duplex System 
Changed AM Power measurements on IB Power meter to show true RMS power meter
with AM Modulation applied.
Added Tone Signaling features:
Encode and Decode: ZVEI1, ZVEI2, ZVEI3, PZVEI, DZVEI, PDZVEI, CCIR1,            
CCIR2, PCCIR, EEA, EUROSIG, NATEL, EIA, MODAT
Encode and Decode: Two Tone Sequential
Encode and Decode: DTMF
Encode and Decode: Tone Remote
 
Improved RF Generator Leveling at low RF levels.
Added dBm and Watts selections with load factor entry to AF Level meter.
Updated the DCS Encoder to allow entry of any DCS code.
Improved FM Deviation measurements in the presence of carrier offset.
 
Spectrum Analyzer
Added 6 new markers for a total of 8 markers.
 6 Vertical / 2 Horizontal
 
 
DMR System
Corrected the STD IB 1031 pattern to allow audible tone to be heard in receiver under
test.
Added Magnitude Error Meter.
 
 
TETRA System
Improved Marker functions with Power Profile tile.
Resolved issues with LED’s not tracking selected ports for GEN/TR/ANT.
Resolved issues with mobile registration
 
Autotest II System
Added XTS-5000 Automatic Alignment option (390XOPT600).
Added LMR Auto test option (390XOPT603).