Giga-tronics 2400/2500 Microwave Synthesizer Series
4. Programming Interfaces
Programming Manual, Part Number 34783, Rev A, July 2009
145
4.7.8.3 Power Level
Table 36 Systron Donner 16XX Emulation Command Set — Power
Output Power Level Setting Commands
Internal Function (- dB W)
N
Selects 100 dBW digit
0-1
Value of 100 dBW digit
M
Selects 10 dBW digit
0-9
Value of 10 dBW digit
L
Selects 1 dBW digit
0-9
Value of 1 dBW digit
K
Selects 0.1 dBW digit
0-9
Value of 0.1 dBW digit
NOTES:
1. Values entered are for NEGATIVE (-) dB referenced to 1 Watt (dBW). Do not enter a negative (-)
sign.
2. For reference: 0 dBW = + 30 dBm or -30 dBW = 0 dBm.
3. To convert from dBm to dBW, subtract 30 from the dBm value.
For example, -12.3 dBm = -42.3 dBW which is entered in the program command string as
N0M4L2K3
(no negative sign).
4. Digit values in a power level programming command string that are not preceded by an
alphabetic character will decrement in position from highest-to-lowest power level digit position
value, based on the location in the string of the last alphabetic character entered.
Power Level programming examples:
1.
N0M3L2K1,
N0M321,
or
K1L2M3N0
sets power level to –32.1 dBW (-2.1 dBm).
2. With power level = -32.1 dBW (-2.1 dBm),
M2
changes the level to –22.1 dBW (+ 7.9 dBm).
3. With power level = -32.1 dBW (-2.1 dBm),
L0K0 or L00
changes level to –30 dBW (0 dBm).
THE VALUES SHOWN HERE ARE FOR HISTORICAL AND COMPARATIVE
REFERENCE ONLY! THE 2400/2500 SIGNAL GENERATOR OUTPUT POWER
VALUES ARE RADICALLY DIFFERENT AND WILL NEED TO BE TAKEN IN TO
CAREFUL CONSIDERATION WHEN USING SYSTRON DONNER ATTENUATION
PROGRAMMING COMMANDS!
WARNING
!