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Quick Installation Guide

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Quick Installation Guide
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WERA4-Quick-US-200918
Page 43 of 73
- Increase the gain by one step and run a calibration again. Please check the power
level LED at the PA, do not increase the power further when the second green LED
is on.
Attention: Always check the output power value to ensure that the
level is kept below the calculated max PA output power limit.
Attention: Always check that at the PA no red LED is on. In that case reset the PA
before the next calibration cycle is started.
- If no antenna has reached the 7 volts limit the gain (=power) can be increased
again. Always check the power LED when running a new calibration after increasing
the gain.
The optimum is reached as soon as one Rx antenna comes close
to the 7 Volts limit and one green power LED on the PA is on.
If this optimum is not reached, please proceed with the next steps, but double check
that all connections and settings are correct (-80 Hz offset).
If the Rx levels are already at 7 Volts even if the Tx level is still quite low (no green power
LED on, just the yellow one left of the green) please proceed with:
- Switch the Receiver Attenuation on WERA Desk (chapter 7.1.5) to 4 dB and increase
the PA gain by 3 dB
Attention: Always check that at the PA no red LED is on. In that case reset the PA before
the next calibration cycle is started.
- Now the voltages should be slightly lower but the PA power level higher.
- If now one green power LED is on, keep this setting.
- If still the lower yellow power LED is on switch to 8 dB receiver attenuation and
increase the PA gain by another 3 dB.
- Now the voltages should be again slightly lower but the PA power level higher.
- If now one green power LED is on, keep this setting.
- If still the lower yellow power LED is on switch to 12 dB receiver attenuation and
increase the PA gain by another 3 dB.
- Now the voltages should be again slightly lower but the PA power level higher.
- If now one green power LED is on, keep this setting.
- If still the lower yellow power LED is on increase the PA gain by another 3 dB.
- Now the voltages should be again higher but the PA power level as before.
- If the voltages are now too high switch back to the gain as before and keep that
setting
- If the voltages are still ok, keep these settings.