Peninsula Engineering Solutions RF-8000E, Operation Manual, Page: 66 / 78

R
R
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— Chapter 5. Repeater Tests RF-8000E Operations Manual
58
6. Insert all fuses. Plug in all amplifier power plugs. Alarm conditions may change.
Alarm Condition
Battery A Low Clear
Battery B Low
Clear
Door Alarm when door is open
W/G Either
PWR F1 Either
PWR F2 Either
PWR F3 Either if equipped, otherwise Clear
PWR F4 Either if equipped, otherwise Clear
PWR F5 ~ F8 Clear
AMP 1 ~ 8 Clear. Any AMP alarm is a concern and potential amplifier failure.
UNCOM SUM
(UC1 ~ 7)
Either, Clear if not used.
7. Once the Battery A and B alarms clear or…
•
12V: TB1 A & B are b11.5 and +16 VDC.
•
24V: TB2 and TB3 are b19 and +30 VDC and when measured voltage
at TB1 A & B shows +11.5 ~ +11.8 VDC.
Then the repeater is powered and ready for testing.
8. Current Test: Measure the Battery A and B current flowing into terminal blocks. Repeaters
with equal numbers of amplifiers will have the two battery inputs close to equal and
approximately half of the total current listed in Table 1. If either battery input has a low or zero
current, check the battery source and distribution system. Record currents for reference.
9. The repeater can operate on a single A or B battery input when needed. Each amplifier can
draw power from both DC/DC converters and thus either battery input. When one battery
source is removed or failed, all the current per Table 1 will flow into the remaining working
battery feed.
Transmit Power Adjustment
At this point, the antennas should be mounted, feeders swept, antennas aligned and isolation
confirmed. The repeater’s power amplifiers have been factory set to the specified output power levels
per the system modulation, when known. Fine adjustments are recommended for best performance.
Greater than recommended power levels can result in amplitude distortion, radio, and line errors
(BER). Less than recommended power levels may have been selected by transmission engineering
(e.g. short hops). Refer to system path calculations and path data sheets for details.
In Adaptive Modulation applications, set the transmit power for the most complex modulation
employed. The ALC will maintain the output power level even when modulations change.
To measure and adjust output power:
1. Calibrate the RF Power Meter for 8 GHz operating frequencies.
2. The far end transmitter operating on repeater frequency F1 must be transmitting at this time.
3. Connect the power meter to the RF MON test port on the side of Amplifier A1 (F1 PA). This is an
SMA-female connector. A right-angle adapter with a between series (e.g. SMA to N) adapter (if
needed) to fit the power meter sensor are needed to access the test port.
4. Measure and record the power meter reading. Typically, this reading will be between -15 and
+15 dBm at RF MON.