User's Manual
ARCXTEND 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. 31
1.
Using a 7/16” wrench (open end, box or socket), loosen the two elevation alignment
bolts until the CPE can be tilted up or down by hand, but will hold its position.
2. Observe the display of the alignment device being employed and orient the CPE up and
down to achieve a maximum peak signal. Adjust the gain control on the AR100 as
needed.
3. Tighten the elevation alignment bolts slightly.
4. Using the same wrench loosen the four mounting bolts so the CPE can be oriented side
to side by hand.
5. Observe the display of the alignment device being employed and orient the CPE side to
side to achieve a maximum peak signal.
6. Tighten the elevation alignment bolts slightly.
7. Repeat the elevation (tilt up or down) adjustment, and then the azimuth (side by side)
adjustment once again.
8. Tighten the elevation alignment (tilt) bolts, taking care not to over tighten.
9. Tighten the mounting bolts firmly, but do not over tighten.
10. Disconnect the coaxial cable from the RX side of the AR100 and connect to the cable
modem.
Verify CPE output signal at input to cable modem
)Using a Digital Cable TV Installation Meter, measure the downstream RF channel power
level. The typical target power level range is between 0 and +7 dBmV.
DS received power level is too
high
DS received power level is too
low
DS signal is not present
If the DS received power level
is too high install one or more
10 dB (AX3255-ECF-10) or 20
dB (AX3255-ECF-20) low
pass attenuators between the
power inserter and the cable
modem.
If more than 30 dB of
attenuation is required and the
Select Downstream Power
setting is High, change the
setting to Medium.
Verify Downstream Power
setting is correct.
Reduce the cable and RF
hardware loss between CPE
and cable modem or add bi-
directional amplification.
Redo the CPE alignment
process
Verify the wireless range and
LOS path between Hub and
CPE are within specified
limits.
Verify integrity of in-building
cabling and power.
Make sure CPE Power
Adaptor and DC inserter are
installed properly.
Check DC power level at input
to CPE.
Check coaxial cable
connections.
Verify the wireless range and
LOS path between Hub and
CPE are within specified
limits.
Table 4-2: DS power level at CPE