682XXB/683XXB MM A-179
3-11 Power Level Accuracy and Flatness Tests (Continued)

(Model 68275B/68375B with Option 2C Step Attenuator)

Power Level Accuracy Test Procedure
Set F1 to 5.0 GHz Set F1 to 25.0 GHz Set F1 to 45.0 GHz
Set L1 to: Measured Power * Set L1 to: Measured Power * Set L1 to: Measured Power *
+8.5 dBm
+7.5 dBm
+6.5 dBm
+5.5 dBm
+4.5 dBm
+3.5 dBm
+2.5 dBm
+1.5 dBm
+0.5 dBm
–0.5 dBm
–1.5 dBm
–2.5 dBm
–3.5 dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
+0 dBm
–1 dBm
–2 dBm
–3 dBm
–4 dBm
–5 dBm
–6 dBm
–7 dBm
–8 dBm
–9 dBm
–10dBm
–11dBm
–12dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
–1 dBm
–2 dBm
–3 dBm
–4 dBm
–5 dBm
–6 dBm
–7 dBm
–8 dBm
–9 dBm
–10dBm
–11dBm
–12dBm
–13dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
*Specification is 1.0dB. *Specification is 1.0dB. *Specification is 1.5dB.
Power Level Flatness Test Procedure (Step Sweep)
Set L1 to: Max Power Min Power Variation **
–1 dBm _________dBm __________dBm _________dB
**Maximum variation is 1.6 dB (0.05 to 40 GHz); 2.2 dB (40 to 50 GHz).

Power Level Flatness Test Procedure (Analog Sweep) (Model 68375B only)

Set L1 to: Max Power Min Power Variation ***
–1 dBm _________dBm __________dBm _________dB
***Maximum variation is 6.0 dB (0.5 to 20 GHz); 8.2 dB (20 to 40 GHz); 10.2 dB (40 to 50 GHz)(typical, not a
specification).
TEST MODEL
RECORD 68275B/68375B