96
1 and phase 2, NXDN™ conventional and trunking, dPMR and TETRA. Other test mode options are
under development and will be provided as firmware upgrades.
Figure 3.2.8.2-1 Test Mode submenu
2.2.7.2.1
DMR Test Mode with MOTOTRBO™
The R8100 DMR Test Package option / DMR Test Mode allows testing of repeater/subscriber radios
compliant with the ETSI
Digital Mobile Radio (
DMR) Tier 2 conventional (non-trunked) radio transmission
protocol. DMR radios use a digital transmission format employing 4-Level Frequency Shift Keying
(4FSK) modulation with a channel access method of Time Division Multiple Access (TDMA) technology
with two slots per frame. Pressing the DMR soft key initiates the DMR test mode. On the R8100 main
display the Standard mode’s Audio Zone and Audio Zone soft key are replaced by a DMR soft key and
DMR specific content – see Figure 3.2.8.3-1. In addition, a Power Profile display is available in Display
Zone and a Constellation display is automatically selected in Meter Zone as a convenience.
The manufacturer’s Radio Service Software (RSS), Motorola MOTOTRBO™ Radio Tuner software, is
required to perform some tests in DMR mode because certain measurements (BER) require placing the
radio in a special test mode. The Tuner software places the radio in specific test modes, while the role of
the R8100 service monitor is to transmit and receive test patterns compliant to the DMR physical layer.
Tests that don’t require RSS include subscriber slot power, Frequency Error, Symbol Deviation, FSK
Error, Magnitude Error, Power Profile, and Constellation. Averaging can be applied to some
measurements by the System Settings. Figure 3.2.8.3-1 shows the R8100 main screen after choosing the
DMR Test Mode in Monitor mode.
Содержание R8100 SERIES
Страница 19: ...19 Figure 2 1 2 Left and Right Sides of the R8100...
Страница 164: ...164 Figure 2 2 7 7 5 Power Profile Frame with Markers...
Страница 224: ...224 Figure 3 2 9 6 1 Submenu after pressing Options soft key in the Settings menu...
Страница 243: ...243 PTC Test in Monitor Mode Eye Diagram Display...
Страница 244: ...244 Power Profile Display Linear and Circular Constellation Displays...
Страница 245: ...245 Symbol Distribution Plot...