8662A Option H21
08662-92037
Page 1 of 5
SECTION I. GENERAL INFORMATION
Option H21 to the HP Model 8662A Synthesized Signal Generator provides an 8662A
factory-selected for single-sideband (SSB) phase noise from the 640 MHz output better than the
specifications of Option 003. Option 003 provides guaranteed SSB phase noise from the 640 MHz
low-noise output (Option 003 must be ordered with Option H21.)
All SSB phase noise measurements from the 640 MHz output are defined and guaranteed as
measured on an HP 3048A Phase Noise Measurement System with suitable low-noise local
oscillators. Because of the nature of these measurements, no allowance has been included in the @
Option H21 specifications for the uncertainty of the 3048A measurements (typically +/-2dB) or any
uncertainty caused by temperature, vibration, or other environmental variations. @
On page 1-4, in Table 1-1, Specifications (1 of
5),
under SPECTRAL PURITY, add the
following after the section titled "Residual SSB Phase Noise in
1
Hz Bandwidth":
Electrical Characteristics
SSB Phase noise in a
1
Hz
Bandwidth (640 MHz Output of
Option H21)
Absolute Noise of the 640 MHz
Output (including the noise
contribution of the 10811-60111
Reference)
Performance Limits
-62dBc
-92dBc
-117dBc
-126dBc
-147dBc
-157dBc
-157dBc
Conditions
640 MHz; Sweep Mode Disabled
1 Hz Offset from carrier
10 Hz Offset from carrier
100 Hz Offset from carrier
1 kHz Offset from carrier
10 kHz Offset from carrier
100 kHz Offset from carrier
1 MHz Offset from carrier
#
NOTE
Since the 8662A Option H21 is factory-selected to meet more stringent
specifications, any field repair, replacement, and/or adjustment of critical parts
and assemblies could upgrade performance back to standard specifications.
Under these conditions, Hewlett-Packard's warranty obligation would be to the *
standard specifications, not to the Option H21 specifications. For these
reasons, Hewlett-Packard recommends that the 8662A Option H21 be returned
to the factory for any repairs or adjustments which may affect phase noise
performance. Factory repair provides Option H21 specifications and is
warranted.
Copyright 1984 - HEWLETT-PACKARD COMPANY - Spokane Division
24001 E. Mission Ave, Liberty Lake, WA 99019-9599 U.S.A.
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