Tait Orca 5000 - Calculating the Parameters Required for Test Command 101

June 2003 IPN: M5000-00-105 Test facilities C - 7
Table C-2: Calculating the parameters required for test command 101
Calculating parameters for test command
101
Enter the parameters in the format tttttt T rrrrrr R F
■ tttttt represents the transmit frequency
See Example 1
■ T and R represent channel spacing
0 = 5 kHz
1 = 6.25 kHz
■ rrrrrr represents the receive frequency
See Example 2
■ F indicates whether the test command changes
the calibration values
0 = do not change calibrated values
1 = recalculate the calibrated values based on
new frequencies
Note: tttttt and rrrrrr may be up to 6 digits long.
Example 1: Calculating tttttt for an H band
radio
Example 2: Calculating rrrrrr for an H band
radio
Note: IF depends on the radio’s switching band.
■ For A, B, C and D bands radios, the IF is 21.4 MHz.
*(For A band, add the IF (MHz) in the formula (radio
uses high side injection).)
■ For E, F, G, H, I, J and K band radios, the IF is
45.1 MHz.
transmit frequency (MHz)
channel spacing (MHz)
tttttt =
461.025 MHz
6.25 kHz
=
461.025 x 10
6
Hz
6.25 x 10
3
Hz
=
73764
=
receive frequency (MHz) - *IF (MHz
)
channel spacing (MHz)
rrrrrr =
461.025 MHz - 45.1 MHz
6.25 kHz
=
415.925 x 10
6
Hz
6.25 x 10
3
Hz
=
66548
=
receive frequency (MHz) - *IF (MHz
)
channel spacing (MHz)
rrrrrr =
461.025 MHz - 45.1 MHz
6.25 kHz
=
415.925 x 10
6
Hz
6.25 x 10
3
Hz
=
66548
=