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Agilent Technologies
E8257D Option HNY
Product Note
The Agilent E8257D Option HNY provides an advanced phase lock loop circuit along with
a high-performance internal frequency reference that will improve both the close-in and
pedestal phase stability to provide superior phase noise performance at all offsets less than
250 kHz from carrier. With the integrated frequency dividers enabled (included with
Option HNY), the E8257D uses a dividing technique to output carrier frequencies below
250 MHz. This results in improved phase noise at all offsets for these frequencies. The
dividers can be disabled, returning the PSG to a standard mode of creating low frequencies
with a heterodyning technique. This mode provides wider deviation bandwidth for
frequency and phase-modulated signals. Controls for this mode are the same as for
Options UNX and UNY.
Required Options
1E1 Step attenuator
Select one of the following:
520 Frequency range, 250 kHz to 20 GHz or
532 Frequency range, 250 kHz to 31.8 GHz or
540 Frequency range, 250 kHz to 40 GHz
Incompatible Options
1EM Rear panel connectors
1ED Type-N output connector
1SM Scan modulation
Any custom hardware options
A
Specifications and Characteristics
Measured RMS jittera
Option HNY SONET/SDH RMS jitter Unit intervals Time (fs)
carrier frequency Data Rates Bandwidth (