P25 SRM9030/9030
Plus
– OPERATING INSTRUCTIONS
TNM-U-E-0094
Oct 15 (Iss. 2.0)
Page 37
MENU SCREENS
When the
Mode
screen is displayed, use the ▼/▲ keys to scroll through and select the required
operating mode, such as APCO P25, PMR or MPT Trunking.
When the required mode is displayed, press the
OK
key 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 as follows:
PMR (*60#).
P25 (*80#).
MPT Network 1 (*71#).
MPT Network 2 (*72#).
5.13
RSSI
M
ENU
The RSSI screen displays the received signal strength in dBm. When the radio has been correctly
calibrated, the reading is typically accurate to within ±2 dBm between the range of
−120 dBm and
−80 dBm. For example, −90 dBm is a strong signal and −120 dBm is no signal.
On digital channels, the RSSI screen also shows the Bit Error Rate (BER). RSSI and BER are
typically used to indicate signal quality.
From the
Setup
menu, use the ▼/▲ keys to scroll through the sub-menus and, with the
RSSI
menu option displayed, press the
OK
key to access the RSSI screen.