Dataradio Integra-TR, Техническое руководство, Страница: 56 / 68

4-4
Part No. 001-4008-101/102
Table 4-2 Link Test Display Format
4.5 BAR GRAPH
A Received Signal Strength Indicator (RSSI) bar graph is available during continuous test transmissions
(i.e., remote “Tx Tone” and “Carrier”). The appearance of the “Local RSSI” indicator is a single vertical
graph bar with indicated values in “dBm”. The accuracy of the reading is normally better than +/- 3db.
The bar graph changes during user maintenance local test transmissions of “Tx Tone” and “Carrier”. A split
screen of two parallel vertical bars is seen. The “Local TX Pwr” measurements of “Forward power” and
“Reflected power” are in “Watts” (see Figure 4-1).
4.6 CARRIER
To send an unmodulated carrier, press the “Carrier” button. Used mainly to check carrier frequency, RF
power level (local unit) and received signal strength from a remote unit.
Warning: Care must be taken while reading transmit deviation remotely. Over-the-air service monitor
readings may give higher results than expected because of RF noise and interference that superimpose
on the received signal.
z
If Source is “Local”, pressing Carrier transmits until the button is pressed again
z
If Source is “Remote”, the selected unit will send for 30 seconds. Remote transmissions cannot be
interrupted
All buttons are inactive during test transmissions.
4.7 TX TONE
The TX Tone is used mainly to check transmit deviation. To send a modulated carrier, press the “TX Tone”
button (see Figure 4-1).
z
If Source is Local, sends a 1200 Hz sine wave for 30 seconds or until the button is pressed again
z
If Source is Remote, causes the selected ID remote to send a tone for 30 seconds. Remote transmissions
cannot be interrupted. All buttons are inactive during test transmissions. Typical transmit deviation are
network speed dependant and are shown in Table 4-3.
Action Format Results Relation
Blocks Sent 0-100 Records the total number of blocks transmitted to the remote
A
Blocks Received by remote 0-100 Indicates recorded total number of blocks received by the remote
B
Link Quality to remote
0.0% to
100.0%
Ratio (percentage) of blocks received by the remote compared to
blocks transmitted. Value is indicative of link quality to remote B over A
Responses from remote 0-100 Indicates recorded total of response-blocks received from the
remote C
Link Quality from remote
0.0% to
100.0%
Ratio (percentage) of blocks received from the remote compared to
the recorded total of blocks received by the remote. Value is indica-
tive of link quality from remote C over B
Overall Link Quality
0.0% to
100.0%
Ratio (percentage) of blocks received from the remote compared to
the recorded total of blocks first transmitted to the remote. Value is
indicative of overall link quality to and from remote C over A