Atec Aeroflex-3920B - Manual (Page 8)

both mobiles and base stations in the 700 and 800 MHz bands. HPD
systems operate within the normal 25 kHz mobile radio bandwidth.
The 3920B HPD options provide users with the ability to test High
Performance Data systems. HPD can be configured for two modes
of operation. When configured to operate in BR Mode the test set
simulates base radio operation and is used to test the functionality of
Motorola HPD Mobile Subscriber Units (MSU). When configured
to operate in MSU Mode the test set simulates Mobile Subscriber
Unit operation and is used to test the functionality of Motorola Base
Repeaters (BR).
Example of HPD Tiles
Motorola HPD Advanced Analysis Package (390XOPT301)
More advanced features are available with 390XOPT301 including:
• Received Data Stream Logger. Logs the data portion of the
HPD signal and displays it in hex.
• RX Time Display. Shows frequency error, power and symbol
clock error over time.
• HPD Magnitude/Phase Estimation. Displays magnitude and
phase fluctuations of the received signal.
• Eye Diagram and I/Q over time displays
• Power Profile. Shows the power over time and in a burst
(TDMA transmission).
• Power Ramps. Shows the power up and power down portion of
the TDMA burst.
Motorola HPD Testing Suite (390XOPT302)
This option combines 390XOPT300 and 390XOPT301.
DMR (390XOPT400)
Add advanced testing capability for DMR (Digital Mobile Radio)
with 390XOPT400. This option enables the Aeroflex 3920B Digital
Radio Test Set to test and align a wide range of DMR repeaters
and mobile stations. DMR radio technology is a digital radio format
offering advanced communications features specified by the ETSI
technical standard ETSI TS 102-361-1. Capabilities of the 3920B
include:
• Generate and receive DMR modulated signals
• Measure FSK error and magnitude error
• Measure symbol deviation
• Measure symbol clock error
• Measure slot power
• Distribution plot of symbol deviation
• Eye diagram of FSK demodulation
• Power profile of burst and of burst ramp up/ramp down
• Transmit and receive live audio using the vocoder
• Transmit stored speech patterns
• Test duplex or simplex mobiles
• Wake-up burst for testing repeaters
• Synchronize with repeaters
• BER testing
• Encode color code and call ID
• Decode color code, unit ID and call ID
Example of DMR Tiles
DMR XMl Channel logger Option (390XOPT402)
With this option, the user can now capture and log to a file (on a
PC connected to the 3920B through a LAN) the raw data that is
transmitted by a mobile station or repeater. The data is formatted
using XML, so that it can be decoded with an external program
(developed by the user) or viewed with a text editor. This is perfect
for the engineer doing development work or the test engineer in the
field that needs to capture the data being transmitted by a repeater
or subscriber unit. The data is captured by connecting a PC to the
3920B through an Ethernet crossover cable. Using the PC appli-
cation, (available at www.aeroflex.com/3920) “DMR XML channel
logger for 3920”, the user can both log DMR XML data and send
XML files that can control the data being transmitted by the 3920B.
dPMR (390XOPT420)
dPMR is an ETSI standard specified in ETSI TS 102 658. This
option adds advanced testing capabilities that conform to the
requirements of this ETSI standard. The transmitter tests include
power, frequency error, FSK error, symbol deviation and symbol
clock error. This option also provides several graphical screens that
provide more insight into the accuracy of the dPMR modulation.
nXDn (390XOPT440)
Add advanced testing capability for NXDN with 390XOPT440.
This option enables the Aeroflex 3920B Digital Radio Test Set to
perform a variety of Transmitter and Receiver tests on any NXDN
radio. Transmitter measurements include:
• Signal power
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