HP 8657A
Signal Generator, 100kHz-1040MHz
The HP 8657A offers excellent performance at
an economical price. The low residual FM and excellent phase noise performance
of these signal generators make them ideal for many in-channel and even
out-of-channel receiver tests. The HP 8657A-002 is a versatile signal
generator offering a variety of features, such as simultaneous and mixed
modulation combinations of AM and FM, as well as a carrier phase adjust
capability that allows you to characterize phase-sensitive devices. In
addition, the HP 8657A-002 offers a wide output range, +13 to -143.5 dBm
with superior level accuracy of +/- 1.0 dB. Built for reliability, the
HP 8657A-002 uses an all-electronic attenuator, which is backed with a
five-year warranty to ensure that you will make consistent, repeatable
measurements every time.
Features:
Wide frequency coverage, 100 kHz to 1040 MHz
Electronic
attenuator
AM
and FM capabilities
±1
dB level accuracy (typically ±0.5 dB)
Amplitude
offset and phase adjustment capabilities
0.3 GMSK Modulation Option
Specifications:
Subharmonics: None
Residual FM (0.3 to 3 kHz, CW): <4 hz rms <hr>
Amplitude Specifications
Range: +13 to -143.5 dBm into
50 ohm, +10 dBm, 100 kHz
to 1 MHz
Resolution: 0.1 dB
Absolute Accuracy: <±1 db,>=-127 dBm
<±1.5 db,>+7 dBm
Reverse Power Protection: 50 W
Frequency Modulation Specifications
Maximum Peak Deviation: 99 kHz, fc <130 and> 260
50 kHz, fc 130 to 260 MHz
Resolution: 100 Hz, deviations <10 khz,
1 khz, deviations> 10 kHz
Bandwidth (1 dB): dc to 50 kHz
Indicator Accuracy: <±5% of setting <b>
Distortion (internal rates,
>=3 kHz peak deviation):
<0.5 % thd + noise <hr>
Amplitude Modulation Specifications
Depth (output at <=+7 dbm): 0 to 99%
fc>= 400 kHz
Resolution: 1%
Bandwidth (1 dB): 20 Hz to 40 kHz
Accuracy (internal rates): <±(2% + 6% of setting) (<90%
am < + 7 dbm) <b>Distortion:
<1.5% (0 to 30% am, internal
rates, level < + 7 dbm) <hr>
General Specifications
Remote Programming Interface:HP-IB (HP's implementation of
IEEE-488)
IEEE-488 functions: SH0, AH1, T0, L2, SR0, RL1,
PP0, DC1, DT0, C0, E1
Save/recall/sequence
registers: 100 nonvolatile registers to
save front-panel settings
Operating temperature: 0°C to 55°C
Power requirements: 100 V, 120 V, 220 V, or 240 V
(+5, -10%) from
48 to 440 Hz, 175 VA maximum
Size: 133 mm H x 425 mm W x 520 mm D
(5.25 in x 16.75 in x 20.5 in)
Weight: 18.2 kg (40 lb)
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