Wavetek TETRA MS Test - Page 13

Example:
If Channel 0 TX Frequency is 380.0000 MHz, Lower
Band is selected, Duplex is set to 10 MHz and the
traffic channel number is 2, then the STABILOCK
expects the equipment under test to transmit at
380.050 MHz and to receive the STABILOCK signal
at 390.050 MHz.
Result averaging This parameter applies to measurements on the
MIN-MAX display. The AVG (average) value is cal-
culated from the last N measurements; N is the
value you enter in this input field (valid range is from
2 to 200).
Units Select your preferential unit with the UNIT/SCROLL
key. The measured RF power can be displayed
either in dBm or Watt. The vector error can take on
absolute or percentage values.
"
Changing the power setting also changes the
unit for all measurements outside TETRA. If
you want to return to your own units after
making TETRA measurements, leave the
TETRA basic mask with the
{RETURN}
softkey,
enter
[AUX]
+
{DEF.SET}
, and select the preferred
unit in the scroll field RF POWER.
Source The connector to be used can be changed between
RF and RF DIRECT using the
[UNIT/SCROLL]
key.
The normal input/output connector is RF. You can
also perform measurements using the RF DIRECT
connector, which allows for 20 dB higher RX and TX
signals. Note, however, that measurement accur-
acy stated in the data sheet only applies to the RF
connector.
Measure This scroll field is used to select the mode for the
MEASURE softkey, where you can take measure-
ments from either continuous or discontinuous sig-
nals. You have to tell the STABILOCK if it is to
expect BURST or CW (constant waveform) signals.
Channel Offset
Frequency Band
Duplex Spacing
These parameters are used in the protocol software
to indicate parameter settings that are not generally
defined yet. Please consult your network operator
how to set up these fields.
"
A new method how to use the parameters can
be found in the appendix, and may be helpful if
the correct parameters are unknown.
10
Parameters TETRA MS Test
10-13