SRP9170/80 P25 Portable Radio – User Manual
© ComGroup Australia 2010 Page 29 TNM-U-E-0091 1.4a
4.2.10 Mode
The mode menu is used for changing from one radio to another, such as PMR/LMR mode to
P25 or MPT1327 trunking.
From the Channel Screen, select menu mode with the “M” or “Menu” key and step through
the menus with the ▼ and ▲ keys until the “Mode” menu is reached.
Press “OK” to select the Mode menu.
From the “Mode” menu, use the ▼ and ▲ keys to select the required operating mode, such
as APCO P25, PMR or MPT Trunking. While the required mode is displayed, press OK to
select that operating mode. The radio will then display the default screen for that mode.
Keypad shortcuts can be used to change modes from the keypad.
PMR (*60#)
P25 (*80#)
MPT Network 1 (*71#)
MPT Network 2 (*72#)
4.2.11 RSSI
This screen displays the received signal strength in dBm. The reading is typically accurate
within +/- 2 dBm between –120dBm and -80dBm, when the radio has been correctly
calibrated. For example, -90dBm is a strong signal and –120dBm is no signal.
The screen also shows the Bit Error Rate (BER) on digital channels. RSSI and BER are
typically used to indicate signal quality.
From the Settings Sub Menu, step through the menu options with the ▼ and ▲ keys until the
“RSSI” menu is displayed.
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