HP 8656B User Manual

specifications
OUTPUT FREQUENCY MODULATION
Level Range (3 Y2-digit LED display): t13 dBm to
Maximum FM Peak Deviation (2-digit LED
-143.5 dBm into 50Q, +10 dBm to -143.5 dBm
display):2-m
for frequencies from 100 kJ3z to 1 MHz.
Resolution: 0.1 dB.
Absolute Level Accuracy:'+m
i d.0 dB (+7 to-127 dBm),
< f 1.5 dB ( >+7 dBrn).
Level Flatness (100 kHz to 1040 MHz): H.5 dB,
output level setting of 0 dBm.
SWR {fc r 400 kHz): c1.5 for levels <- 3.5 dBm.
~2.0 for levels 91 3 dBm.
Reverse-Power Protection: Protects the signal
generator from applications of up to 50 watts of
RF power (from a 50Q source) to 1040 MHz into
generator output; DC voltage cannot exceed V.
Resolution: 100 Hz for deviations less than 10 Mz;
1 kHz for deviations 2 10 Hz.
SUPPLEMENTAL CHARACTERISTICS
FM Rate,
Internal: 400 Hz and 1 kHz, ?2%.
Impedance: 50 O Nominal. External:
Absolute level Accuracy:
dc15 Hz to 100 kHz, 3 dB bandwidth
c k1.5 dB, output levels <- 127 dBm.
dct20 Hz to 50 kHz, 1 dB bandwidth
< k 0.5 dB, 25°C ?IOPC, +7 to -127 am.
Center Frequency Accuracy in dc Mode:
Typical Output Level Overrage:
Center
~WW
0.1tolSOMHz
130 to 260 MHz
260 to 520 MHz
520 to 1040 MHz
Typical Maximum Output Power VS Frequency
18
(Ouipul Sel lo +17 d0m)
I7
I6
15
14
= 13
g 12
3" 3
2
I
0
0 2m U10 m
Curlmr Ffwwncy [Hz)
AMPLITUDE MODULATION
FM not specified for fc - (Afw) <I00 kHz
Maximum Peak Deviation
AM Depth (2-digit LED display)? @
0 to 99%, level 2 +7 dBm, fc 2 400 kHz."d
0 to 30%, level 5 +10 dBm, fc r 400 kHz.?+&
Resolution: 1 %.
AM Rate,
Internal: 400 Hz and 1 kHz, f 2%.
External: 20 Hz to 40 kHz
(1 dB bandwidth, AC coupled)
AM Distortion (internal rates, level c +7 dBm):
Oto3O%AM < 1.5% THD plus noise.
31 to 70%AM
< 3.0% THD plus noise.
71 to 90% AM < 4.0% THD plus noise.
Indicator Accuracy (for depths < Wo and
internal rates and levels < +7 dBm):
< 52% +68 of setting).
Incidental Phase Modulation (at 3lW0 AM depth,
internal rates): i 0.3 radians peak.
AC Mode (the lesrper 00
99kHzor4000xrate(Hz)
50 kHz or 1000 x rate (Hz)
99 kHz or 2000 x rate (Hz)
99 kHz or 4000 x rate (Hz)
DCAiode
99kHz
50 lrHz
99 lrHz
99 kHz
Center Frequency Stability in dc Mode: <lo Hz
per hour drift ltyp <3 Hz per Hour).
FM Distortion (at internal rates and 2 3 kHz peak
deviations)?-p@ <0.5% THD plus noise.
Indicator Amuracy (internal rates):
< f5% of setting.
Incidental AM (peak deviations <20 kHz,
internal rates and fc 2 WWI kHz): 4.1 % AM
Carrier
Frequency
0.1 to130MHz
130 to 260 MHz
260 to 520 MHz
520 ta 1040 AdHz
Center F'requenoy
-Y
f 500 Hz
f 125 Hz
* 250 Hz
f 500 Hz

HP 8656B Specifications

General

Brand	HP
Model	8656B
Category	Portable Generator
Language	English