AC Power Source
The HP 85901A provides 200 watts of continuous power for field and mobile application. The
self-contained ac power source has outputs for either 115 V or 230 V and runs on its own
internal battery, an external battery, or on another 12 V dc source. Typical operating time
exceeds 1 hour for 100 watt continuous use at room temperature.
AC Probe
The HP
85024A
high frequency probe performs in-circuit measurements without adversely
loading the circuit under test. The probe has an input capacitance of 0.7 pF shunted by 1
MQ
of resistance and operates over a frequency range of 300 kHz to 3
GHz.
High probe sensitivity
and low distortion levels allow measurements to be made while taking advantage of the full
dynamic range of the spectrum analyzer.
Caution
Do not use dc-coupled probes on HP 8592L and HP 85933 analyzers; they may
cause damage to the spectrum analyzer input circuit.
When using a dc-coupled probe with an HP 85943, HP 85953, or HP 85963,
the spectrum analyzer must be set to ac coupling. To set the analyzer to ac
coupling,press CAMPLITUDE~, More 1 of 3, More 2 of 3, COUPLE AC DC so
that AC is underlined.
Broadband Preamplifiers and Power Amplifiers
Preamplifiers and power amplifiers can be used with your spectrum analyzer to enhance
measurements of very low-level signals.
n The HP 10855A preamplifier provides a minimum of 22
dB
gain from 2 MHz to 1300 MHz.
n The HP 8449B preamplifier provides a minimum of 30
dB
gain from 1
GHz
to 26.5
GHz.
n The HP 8447D preamplifier provides a minimum of 25
dB
gain from 100 kHz to 1.3
GHz.
n The HP 84473 power amplifier provides a minimum of 22
dB
gain from 0.1
GHz
to 1.3
GHz.
n The HP 87405A preamplifier provides a minimum of 22
dB
gain from 10 MHz to 3
GHz.
n The HP 85905A CATV 75 ohm preamplifier provides a minimum of 18
dB
gain from 45 MHz
to 1
GHz.
Burst Carrier Trigger
For use with HP 8590 E-Series spectrum analyzers. The HP 85902A burst carrier trigger
detects the burst RF carrier of a digital communication system and provides a TTL output
trigger to synchronize a spectrum analyzer. The triggering function is especially useful when
performing time-dependent measurements used as power versus time and adjacent channel
power gated measurements. The HP 85902A is compatible with most digital communications
formats, including NADC-TDMA, E- TDMA, JDC, GSM, DCS-1800,
CT2-CAI,
DECT, PHP, and
CDMA.
lo-14 Measurement Personalities, Options, and Accessories
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