F,RGM TEKTPCJNIX, INC. FSD
- -
. . .--... __.-*. . .
6. 25. 1991 13: 49
p. 2
TEK 1 INTI~OFFICE
TO
FnOM
SU13.K:T
John Martin
Frank
GfDEP permit request
Gray, SO-PAT
In
reeponse to the request to grant perrniasion to
Government Industry Exchange
Tektronix
Tektronix,
of
such documents to any
in
the
operator,
Xnc. hereby
Metrology
Data Interchange Data Base of
that all copies of the original work
copyright notice and
in the original, together
permit3eionaa
This permission has been approved by the Intellectual
lropsrt Committea OF Tsktronbc,
be prov
ded
‘i
to GIDEP to provide the requested permission.
COMMUNICATION
94-540
Pro ram
~lervice and
grants such pm-mission
GIDEP
ownership
with
P
nstruction manuals,
user that is a full participant
statement exactly a-& it appears
the Legend "Reproduded with
and a copy or this memo may
(CPDEI?) to reproduce
include the entire
. . .
>n ' t:
for distribution
.
Juno 25, 1991
the
GIDEP provided
geG&d-a
Group Pa&t: Counml
75l39Ebdx
TEK
4951495P
DATA SHEET (Revised)
SPECIFICATIONS
ORDERING INFORMATION
495/495P PORTABLE SPECTRUM
ANALYZERS-100 Hz to 1800 MHz
Covers 100 Hz to 1800 MHz with
-131 dBm sensitivity and
fi.0 da frequency re8pon8e
IO Hz to 3 MHz resolution
bandwidth
10-s frequency accuracy
ICW marker and canter frequency
accurscy on internal reference,
external reference Input provides
flexibility of tying in with a system
clock, included with Option 05
Built-in signal counter capacitycount at any pofnt marked or be-
tween any two marked point8
Macro programming trayerr fre-
quently used measurement programs in nonvolatile instrument
memory (495P)
intelligent marker8 with signal
processing functions
Push-button occupied bandwidth
and noise normalization functions
Switch selectable 50 D and 75 g
impedances (Option 07) for IF,
CATV and local area network
applications
. Nonvolatile memory for up to nine
waveforms and nine front panel
settings
* Direct keypad entry of control
parameters
* HELP mode explains front panel
control* and signal processing
functions at the touch of a button
* Optional MATEKilL compatibility
for military system integration
* Plot data directly without a
controller
Lab quality performance made fully
portable and easy to use. The
Tektronix 495 Spectrum Analyzer offers
features essential for lab grade measurements in a lightweight. portable
package,, Offering frequency coverage
from 100 Hz to 1800 MHz, with an im
pressive - 131 dBm sensitivity and ad.
vanced, intelligent markers with
exclusive signal processing capabilities,
the 495 is optimized for use in baseband through UHF measurements:
where ability to identify and process
weak signals 19 erltlcai
4 built-in signal counter with 140 d6 dynamic rangs means you can determine
the exact frequency of marked signals
only 10 Hz apart-or count the exact
delta frequency between two marked
signals-even with greatly differing
amplitudes,,
Options offer macro programming,
10-S frequency accuracy and sys-
tam clock compatibility. Down-
loadable programming capability (495P
Only) lets you execute frequently-used
meawrement routines from the spec-
trum analyzer’s nonvolatile memory An
internal high stability reference provides
lo-8 marker or center frequency accuracy (Option 05) for added confidence
in measurements,,
With Option 05 you also have the flex.
ibility of tying in with a system clock:
using the instrument’s external reference lock capacity
Menu-selected, intelligent markers
and signal processing. New
markers automatically update
and amplitude data with every sweep.
When used in conjunction with the
495’s powerful signal processing
intelligence you
to mark the peak of a main lobe and
peaks of side lobes at the push of a
button. CW mode locates signals
exhibiting CW characteristics and
ignores all other signals. SPUR mode
marks signals that meet user-definable
or automatic threshold criteria.
Threshold criteria are available for all
signal processing modes.
The 495 also offers hands-off
convenience for measuring the
bandwidths of filters, amplifiers and
other networks. Simply enter the
desired bandwidth point, select
BANDWIDTH mode and markers
automatically update to display the new
value.
To assist the new, nontechnical or
infrequent operator in using this
sophisticated spectrum analyzer with a
minimum of training and supervision,
the 495 includes a HELP mode.
Contained in ROM, it offers descriptions
of controls and functions in plain
English.
Nonvolatile memory lets you’store up to
nine front panel settings and nine
waveforms, simplifying setup and
making field operation easier. A
permanent record of CRT displays can
be obtained at the push of a button,
without a controller, using the direct
plot capability.
can use PULSE
dynamic
frequency
mode
Switch selectable 50 il and 75 n
impedances (Option 07) add
versatility.
CATV measurements, 75 O/dBmV
greatly simplifies spectrum analysis.
You no longer need to manually convert
dBm to dBmV units or make
measurement adjustments for external
50 a to 75 0 transformers. Option 07
also provides a 300 kHz resolution
bandwidth filter optimized for VHF/UHF
measurements.
For applications such as
Fully automated spectrum analysis.
The 495P is the GPIB-programmable
version of the 495. Programming
increases speed and ensures
measurement repeatability. Under
program control, change front panel
settings, read data from the CRT
display, and send waveforms from
internal digital source memory to other
GPIB devices. Tek’s Standard Codes
and Formats keep commands clear,
consistent and universally understood.
You can increase programming
flexibility and power with the 495P’s
MATEiCllL language extension (Option
45). It provides direct memory access
for high-speed data transmission, a
requirement for MATEiCllL compliance.
To meet budget constraints or future
applications, you can add full
programmability to a standard 495 at
any time. Your Tek &Nice Center will
assist when you are ready to convert.
Tektronix Automated Spectrum
Analyzer Packages.
order, these packages are configured
around DOS based PC’s and Tek’s
laboratory quality programmable 490P
Series spectrum analyzers. Coupling the
PC to the analyzer via the IEEE-468 bus
enables the user to take advantage of
the PC’s capability, as well as the
power and versatility of Tek’s spectrum
Convenient to
495/495P Characteristics
The following characteristics apply after
a 30 minute warm-up period unless
otherwise noted.
Frequency Related
Frequency Range:
1800 MHz.
Center and Marker Frequency
Accuracy: k[ZO%D + (F x Fief Freq
Error) + 15 Hz] with Span/Div
~200 kHz (phase locked); +[2O%D +
(F x Ref Freq Error) + 15 kHz] with
SpaniDiv >ZoO kHz (unlocked).
Where: D = Span/Div or Resolution
BW, whichever is greater.
F = Center or Marker Frequency
Signal Counter Accuracy: t
Ref Freq Error) +5 Hz + 1 LSD]
Where: F = Center, Marker, or Delta
Marker Frequency
LSD = Least Significant
Reference Frequency Error:
Standard instrument:
10-S @ 25°C
1.5 x 10-S h -15°C to 55°C
Option 05 “sin, internal standard:
<10-s per day.
<1O-7 first six months.
<lo+ per year thereafter.
Within 2 X 10-e over temperature
range Of -15°C to 55°C.
Delta Marker Frequency Accuracy:
* 1% Of tote.1 span.
Frequency Drift (after 1 hour
warm-up):
SpaniDiv <2OO kHz (phase locked):
Drift rate <50 Hzimin. Correction will
occur at the end of sweep for sweep
times 35 s/Div. (Drift rate is typically
~20 Hzimin after 1 hour warm-up from
25°C storage).
Span/Div ~203 kHz (unlocked): Drift
rate typically t5 kHz/min (typically
~25 kHz/min after 30 minute warm-up).
Frequency Readout Resolution:
410% of SpaniDiv to 1 Hz minimum.
100 Hz to
[(F x
Digit
2
analyzers. A highly versatile General RF
Applications Software Package
(GRASP) offers many different
applications and utility routines which
are selected through easy, menu-driven
operation.
There are many other time-saving and
accuracy-enhancing capabilities too
numerous to discuss in this data sheet.
See the summary of signal processing
and marker functions on page 5 for a
more complete idea of the 495
measurement benefits. Talk to your
Tektronix Spectrum Analyzer Sales
Engineer for complete details.
Counter Sensitivity:
be a-20 dB above the average noise
level and within 60 dB of the reference
level.
Signal level must
Counter Readout Resolution:
Selectable from 1 Hz to 100 MHz in
decade steps.
Residual FM:
20 msec, SpaniDiv <200 kHz (phase
locked); ~7 kHz peak-to-peak in
20 msec, SpaniDiv 2200 kHz
(unlocked).
Resolution Filters:
to 10 Hz in decade steps. 3 MHz to
100 Hz 6 dB bandwidth fZO%. shape
factor (606 dB) <7.5:1; 10 Hz
bandwidth <150 Hz @ 60 dB down.
Frequency Span/Division: 0
(ZERO SPAN pushbutton or keypad
data entry): 10 Hz to 100 MHz (in a
l-2-5 sequence) via SpaniDiv knob;
10 Hz to 170 MHz (to two significant
digits) via FREQUENCY or MARKER
START/STOP, or Data Entry keypad;
180 MHz via power-up, RESET, or MAX
SPAN pushbuttons; accuracy +5%,
except t50 Hzidiv accuracy + 10%
Frequency Response: +
(measured with 10 dEl RF attenuation).
Zero Frequency Spur:
maximum measured into 50 $l and open
circuit with 0 dB RF attenuation;
-26 dBm typical.
<5 Hz peak-to-peak in
3 MHz then 1 MHz
Hz
1 .O dB
-24 dBm
Amplitude Related
Vertical Display Modes:
2 dB/Div and LINEAR via pushbutton;
any integer from 1 to 15 dB/Div via Data
Entry keypad.
Display Dynamic Range: 90
mode; 6 divisions LINEAR mode.
10 dB/Div,
dB LOG
Reference Level Range:
LOG Mode: - 117 to +50 dBm
(+30 dBm’); - 130 to +37 dBV
(+ 17 dBV’); -70 to +97 dBmV
(+77dBmV’); -10 to +157dBpV
(+137dB@).
Loading...