HP 37717C Calibration Manual

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Performance Tests
ETSI/ANSI Internal Transmitter Clock Rates (Option 110)
E1 (2.048Mb/s) Frequency Accuracy
1. Set the transmitter to Signal [E1 2Mb/s].
2. Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable
reading and ensure that the frequency counter reading is between 2047990.8 Hz and
2048009.2Hz.
3. Set the FREQUENCY OFFSET to [USER OFFSET] [+50PPM].
4. Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable
reading and ensure that the frequency counter reading is between 2048093.2 Hz and
2048111.6 Hz.
5. Set the FREQUENCY OFFSET to [USER OFFSET] [-50PPM].
6. Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable
reading and ensure that the frequency counter reading is between 2047888.4 Hz and
2047906.8 Hz.
DS1 Frequency Accuracy
1. Set the transmitter to Signal [DS1 1.5Mb/s].
2. Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable
reading and ensure that the frequency counter reading is between 1543992.7 Hz and
1544007.3 Hz.
3. Set the FREQUENCY OFFSET to [+32PPM].
4. Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable
reading and ensure that the frequency counter reading is between 1544042.2 Hz and
1544056.7 Hz.
5. Set the FREQUENCY OFFSET to [-32PPM].
6. Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable
reading and ensure that the frequency counter reading is between 1543943.3 Hz and
1543957.8 Hz.
DS3 Frequency Accuracy
1. Set the transmitter to Signal [DS3].
2. Connect the Clock Output port on the HP 37717C Option 110 Transmit Module
to the Frequency Counter Channel A. Terminate in 75 ohm.

HP 37717C Specifications

General

Brand	HP
Model	37717C
Category	Measuring Instruments
Language	English