Maxon Telecom SP210 - Manual (Page 28)

Maxon SP200/210 Radio SP200/210
INSTALLATION, COMMISSIONING & ALIGNMENT - Issue 1.0
Page 4-14 03/01
This completes the transmitter alignment
process.
4.5.6 Receiver Alignment
Audio Volume Level
a. Set the test set to the appropriate
frequency at –47dBm with 1kHz tone
modulation at 60% system deviation:
12.5kHz channel spacing 1.5kHz dev.
or 20kHz channel spacing2.4kHz dev.
or 25kHz channel spacing3kHz dev.
b. Select Channel 1.
c. With the calibration program running on
the PC, select Rx_Vol.
d. Turn the volume control to maximum.
e. Using the PageUp and PageDown keys,
press until the desired maximum volume
level is achieved.
Note: -17.5dB corresponds to 2.10V (+/-0.2V)
into 4 ohm speaker.
At maximum volume, nominal distortion is
10%.
f. Write the changes to the radio.
It may be necessary to carry out adjustment of
the squelch setting, see Section 4.5.4.
This completes the receiver alignment
process.
The following parameters would NOT normally
be adjusted unless specific environmental
conditions necessitate a change:
INTRIM on the receiver (Audio from IF IC.)
SATRIM on the receiver (gain received – sub
audible tone)
Refer to the ACC-2003 User Guide for details.