Tektronix 1L40, Инструкция по эксплуатации

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Type 1L40
SECTION 1
TYPE JL40 SPECIFICATION
Change information, if any, affecting this section will be found at the
rear of the manual.
The Type 1L40 Spectrum Analyzer is designed as a plug­
in unit for use in Tektronix Type 530-, 540-, 550- and 580-1
Series Oscilloscopes. It can also be used in a Plug-In Unit
Power Supply (such as the Type 132 or Type 133 Power
Supplies) when the analyzer is provided with either a 100 V
or 150 V sawtooth signal whose base is within ± 2 V of
ground.
When used in the above listed oscilloscopes, the analyzer
displays the relative power distribution of applied signals
on the CRT vertical axis as a function of frequency on the
horizontal axis.
Frequency coverage within the 1.5 GHz to 40 GHz range
is provided by the selection of mixers2 and adapters which
are listed in the accessories section of the manual. These
mixers and accessories must be ordered separately as re­
quired.
The electrical characteristics apply over an ambient
temperature range of 0° C to 50° C provided the environ­
mental ambient temperature has been stable for 4 hours
and an initial warmup period of 20 minutes with power
applied is provided for the instrument to stabilize. The
performance check procedure in Section 5 provides a con­
venient method to check the operating requirements listed
in this section.
ELECTRICAL CHARACTERISTICS
C haracteristic Performance Requirement
RF Center
Frequency Range 1.5 GHz to 40 GHz— See Table 1-1
CW Sensitivity
(S + N = 2N) See Table 1-1
Dial Accuracy W ithin ± (2 MHz + 1 % of dial read­
ing) IF CENTER FREQ control at 000,
FINE (IF) control centered and FINE RF
CENTER FREQ control centered.
Local Oscillator
Frequency Range 1.7 GHz to 4.2 GHz
Dispersion
M H z/C M Range .2M H z/cm to lO M H z/cm in a 1-2-5
sequence
Accuracy See Table 1-2
Linearity W ithin 3% over a 10 centimeter
display
'A Tektronix Type 8 1 A Plug-In A d o p te r must be used w ith 580
Series Oscilloscopes.
JThe Type 1L40 is norm ally supplied w ith a coaxial mixer, Tektronix
Part No. 1 1 9 -0 0 9 6 -0 0 , which provides a frequency coverage range
from 1.5 GHz to 12.4 GHz.
kHz/CM Range 1 kHz/cm to 500 kHz/cm in a 1-2-5
sequence and zero dispersion
Accuracy W ithin 3% (with ± 2 .5 MHz change
in IF center frequency)
Linearity W ithin 3% over a 10 centimeter
display
Resolution Band­
width < 1 kHz to > 1 0 0 kHz; in 11 uncali­
brated steps. May be coupled with
DISPERSION control or switched sep­
arately.
Spurious Signals
Internal Sources < 2 X noise amplitude. RF INPUT ter­
minated into 50 Q
W ith Main
Response At least — 40 dB at 100 kHz resolution.
DISPERSION Range at kHz/CM posi­
tion. RF INPUT terminated into 50 Cl
IF Center Frequency
Control Range
1 kHz/cm to
500 kHz/cm
Dispersion
IF CENTER FREQ FINE
> ( + and - 2 . 5
MHz)
> ( + and —50
kHz)
0.2M Hz/cm to
5 MHz/cm
Dispersion > ( + and - 2 5
MHz)
> ( + and — 1
MHz)
10 MHz/cm
Dispersion > ( + and — 10
MHz)
> ( + and — 1
MHz)
IF Attenuation
Range
0 to 51 dB. In 1, 2, 4, 8, 16 and 20dB
steps.
Accuracy W ithin ± 0 .1 dB/dB
IF G A IN Control
Range 50 dB or greater
Display Flatness
with IF CENTER
FREQ at 000
W ithin 3dB from 1.5 GHz to 12.4
GHz. W ithin 6 dB from 12.4 GHz to
40.0 GHz. W ith in 50 MHz of RF
Center Frequency.
Incidental FM
IF
kHz/CM
Dispersion < 2 0 0 Hz
LO + IF
W ithout Phase
Lock
< 2 kHz
at
local oscillator fundamen­
tal.
W ih Phase
Lock
< 3 0 0 Hz at local oscillator fundamen­
tal.
Internal Phase Lock
Internal Markers 1 MHz + 0 .1 % (INT REF FREQ control
next to the OFF position.)
l - l