Fluke 6070A User manual

6070A/6071A
X

Section 1
Introduction and Specifications
1-1. THE 6070A/6071A INSTRUCTION MANUAL SET
1-2. The John Fluke Models 6070A and 6071A RF Synthesized Signal Generators are
documentated by a set of four manuals: the 6070A/6071A Operator Manual, the
6070A/6071A Calibration Manual, the 6070A/6071A Service Manual, and the
6070A/607IA Schematic Manual (Figure 1-1). The 6070A/607iA Operator Manual
introduces the operator to the instrument; familiarizes the operator with all instrument
controls, connectors, and indicators; and presents detailed operating information and
procedures for both manual (local) and systems (remote) operation. The 6070A/607IA
Calibration Manual provides procedures for general maintenance, performance checks,
and calibration adjustments. The 6070A/6071A Service Manual contains a description
of the theory of operation, troubleshooting procedures, and a list of replaceable parts.
The 6070A/6071A Schematic Manual contains schematic digrams, wire lists,
interconnects diagrams, and an overall basic block diagram of the instrument.
1-3. The major difference between the two models is that the 6071A has twice the upper
frequency limit of the 6070A. Because of their similarity, most of the text in this manual
will apply to both models. Text that applies to just the 6070A or just the 6071A will be
identified as such.
6070A/6071A
Operator
Manual
6070A/6071A
Calibration
Manual
6070A/6071A
Service
Manual
6070A/6071A
Schematic
Manual
Figure 1-1. 6070A/S071A Instruction Manual Set

1-4. THE 6070A/6071A OPERATOR MANUAL . . . , .
1-5. The information in this, the 6070A/6071A Operator Manual, is divided into 7
sections:
1 INTRODUCTION AND Introduces the 6070A/6071A Instruction
s:PFr!FirAT10NS Manual Set and the 6070A and 6071A RF
Synthesized Signal Generators. Lists the
specifications for both the 6070A and the
6071 A.
2 SHIPPING AND SERVICE
INFORMATION
3 INSTALLATION AND
MAINTENANCE
4 FAMILIARIZATION
5 LOCAL OPERATION
Describes how to ship the instrument and
how to get problems corrected.
Describes how to physically install the
instrument -- including connecting line
power and the IEEE-488 interface - and
how to perform operator maintenance.
Describes the location and function of each
control, connector, indicator, and
annunciator; and presents an exercise to
familiarize the operator with the instrument
(this exercise also provides a gross check of
instrument function).
Describes manual (front panel) operation of
the instrument.
6 REMOTE OPERATION (IEEE-488,
1978)
7 ACCESSORY AND OPTION
INFORMATION
Describes system operation via the IEEE-
488 interface.
Describes each accessory briefly and
describes the capabilities and operation of
each option.
1-6 THE 6070A/6071A SYNTHESIZED RF SIGNAL GENERATOR
1-7. The John Fluke Models 6070A and 6071A Synthesized RF Signal Generators are
designed for use in the calibration laboratory, engineering laboratory, or manufacturing
environments. Both models offer extensive modulation capabilities and use phase-locked
loop circuitry to generate fully synthesized signals with extremely low discrete spurious,
and phase noise. These versatile instruments are intended for both bench and systems use.
When the instrument is used in a system, all front panel control functions (except
POWER and MOD OUT level) can be controlled via an iEEE-488, 1978, interface.
1-8. Instrument parameters, such as output frequency and amplitude, can be
programmed to specific values or manually adjusted using the Edit Knob (large knob
near the lower right corner of the front panel). The Edit Knob is connected to a digital
rotary encoder to provide the same continuous manual adjustment capability
analog tuning control provides, but with the positive positioning of a digital control. I he
rotary encoder has 25 magnetic detent positions. The user can feel each position of the
Edit Knob.
1-9. The major difference between the two models is that the 6071A has twice the output
frequency of the 6070A. The output frequency of the 6070A can be selected within Hz

over a range from 200 kHz lo 519.999999 Mhz (520 MHz). The output frequency of the
6071A can be selected within 1 Hz from 200 kHz to 520 MHz and within 2 Hz from 520
MHz to 1039.999998 MHz (1040 MHz). Both models can produce frequencies outside of
the specified ranges, but the performance is not guaranteed.
1-10. The UNCAL annunciator will turn on to indicate that the instrument is operating
beyond specified ranges. The synthesized RF signal is available at the from panel RF
OUTPUT connector (if the 607XA-830 Rear Panel Output Option is installed, the RF
output is available at a rear panel Type N connector).
1-11. Internal frequency reference is a 10 MHz free air timebase (the 607XA-130 Oven
Reference Option is available for increased accuracy and stability). This 10 MHz
reference can also be phase locked to external references of 1, 2, 2.5, 5, or 10 MHz(0.3 to
4V peak-to-peak sine or square wave) input via a rear panel BNC connector (50 Ohm
input impedance, nominally). When an external reference is used, the shift from internal
to external is automatic. The 10 MHz reference signal (used as the internal instrument
reference) is available as a TTL signal at a rear panel REF OUT connector.
1-12. Below 520 MHz, output level can be selected with a resolution of 0.1 dB over the
range of + 19 to -140 dBm (2 V to22nV rms)inlo 50 Ohms. At 520 MHz or above, output
level can be selected with a resolution of 0.1 dB over the range of+13 to -140 dBm (I V to
22 nV rms). Selected level is displayed on the front panel in either dBm or volts (the
instrument will convert from one to the other if the units are changed). The internal
microprocessor automatically compensates output level for flatness and accuracy
although this automatic correction can be disabled (special function 81).
1-13. The RF output signal can be modulated in various combinations of amplitude
modulation (AM), frequency modulation (FM), or phase modulation (0M) from internal
sources, external sources, or a combination of internal and external sources. Table 1-1
lists all modulation combinations and the possible modulation sources for each
combination. Amplitude modulation depth can be selected with a resolution of 0.1 % over
the range of 0% to 99.9% (see the specifications for calibrated range). The frequency
modulation function allows the output frequency to be deviated while the output
frequency is still synthesized unless the DCFM Mode is selected. Maximum index of
modulation that can be selected for either FM or 0M depends upon the output frequency
and the modulation frequency selected. The internal modulation signal can be made
available at the MOD OUT connectors (front and rear panels). An external modulation
signal can be either ac or dc coupled through parallel connectors on the rear and front
panels (MOD IN connector, 600 Ohm nominal input impedance). External input
sensitivity is such that a 1 V peak input signal produces the calibrated modulation. The
list of specifications at the end of this section provides detailed information about the
modulation characteristics.
1-14. Up to 9 front panel setups can be stored in the internal memory of the standard
instrument, but these setups are lost when the instrument is turned off. The 607XA-570
Non-Volatile Memory Option provides 50 memory locations. Since this option is battery
powered, front panel setups stored in these 50 locations are not lost when the instrument
is turned off.
1-15. Three outputs are available for coordinating the activity of associated devices:
sweep analog output, penlift output, and output invalid output. The sweep analog output
is available at the front panel SWP OUT connector. This output steps from 0 to lOV as
the frequency is swept from the start frequency to the stop frequency. The size of the steps
depends upon the sweep width and the sweep increment selected. The penlift output is

available at a rear panel BNC connector. This output is a TTL signal that goes high
during a sweep retrace and stays high until the next sweep starts. The output valid signal is
available at a rear panel BNC connector. This output is a TTL signal that goes high when
output frequency, output amplitude, or modulation is potentially unsettled.
1-16. The 6070A or 6071A can operate from line voltages either between 90 to 132V ac
or between 180 to 264V ac at any frequency from 47 to 63 Hz. Section 3 of this manual
presents a procedure for switching between the two ranges of line voltage.
Table 1-1. Sources for Modulation Combinations
COMBINATION
SOURCE
INTERNAL
EXTERNAL
AM
AM
AM
FM
FM
-.M
0M
0M
kJM
AM
+
FM
AM
FM
NONE
AM
FM
FM
AM
AM
+
0M
AM
0M
NONE
AM
0M
0M
AM
1-17. OPTIONS AND ACCESSORIES
1-18. The options and accessories available for use with the 6070A and the 6071A are
listed in Table 1-2. Additional information is provided in the Options and Accessories
section of this manual.
1-19. SPECIFICATIONS
1-20. The specifications for both the 6070A and the 6071A are listed in Table 1-3.

Table 1-2. 6070A/6071A Accessories and Options
MODEL/
OPTION NO.
NAME COMMENTS
ACCESSORIES
Y6001
Rack Mount Kit
Includes: M05-205-600 (5Vi inch Rack
Mount Ears) and MOO-280-610 (24-
inch Rack Slides).
Y8001
IEEE Standard Cable. 1 meter
Y8002
IEEE Standard Cable. 2 meters
Y8003
IEEE Standard Cable. 4 meters
Y9100
Attenuator. 6 dB
50 Ohm, 2W, BNC
Y9101
Attenuator, 15 dB 50 Ohm, 2W, BNC
Y9102
Attenuator, 20 dB 50 Ohm, 2W, BNC
Y9103
50 Ohm Feedthru Termination. BNC
Y9111
Coaxial Cable. 50 Ohm. 3 feet
{0.91m), BNC
Y9112 Coaxial Cable, 50 Ohm, 6 feet
(1.83m), BNC
Y9300 Directional Coupler, 100 kHz to 2
1.95 dB Coupling. 0.5 dB Insertion
GHz, 50 Ohm Impedance, BNC
Loss, typically 30 dB directivity to 1
GHz.
Y9301
Min-loss Pad. DC to 1 GHz. 50 Ohm In Better than 1.2 to 1 VSWR, not more
- 75 Ohm Out, 1 W. BNC
than 6 dB Insertion loss.
Y9302
Attenuator. 3 dB
DC to 1 GHz, 2W average, 50 Ohm.
Y9303
Attenuator, 6 dB
1.25 VSWR max.. Type N
Y9304 Attenuator, 10 dB
Y9305 Attenuator. 20 dB
Y9306 Attenuator, 30 dB
Y9307
Adapter, Type N Male to BNC Female,
75 Ohm impedance
Y9308 Adapter, Type N Male to BNC Female,
50 Ohm Impedance
Y9309 Adapter, Type N Male to Type N Male
Y9310
Adapter. Type N Male to SMA Female
Y9311
RF Detector, Broad Crystal Detector, Total Output Flatness: ±0.6 dB 100
50 Ohm, BNC
kHz to 1.2 GHz, positive output.
Y9312 Double Balanced Mixer, 500 Hz to 10 +7 dBm LO. conversion loss 10 dB
MHz, BNC
max., isolation 20 dB min.
Y9313
Double Balanced Mixer, 2 MHz to 1
17 dBm LO, conversion loss 10 dB
GHz, BNC
max., isolation 20 dB min.
Y9314 Power Splitter, 2 MHz to 1 GHz, BNC
Y9315
Coaxial Cable, 50 Ohm. Type N Male
Y9316 Cap, Non-shorting, BNC
Y9317 50 Ohm Termination, Shielded,
Type N

6070A/6071A
Table 1-2. 6070A/6071A Accessories and Options (cont)
MODEL/
OPTION NO.
NAME
COMMENTS
OPTIONS
607XA-130
Oven Reference
High stability timebase in an oven.
607XA-570
Non-Volatile Memory
Battery powered memory. Provides
50 storage locations for front panel
setups. Retains information for about
4 years.
607XA-830
Rear Panel RF Output
Provides the 6070A RF output to the
rear panel via a type N connector.
607XA-831
Auxiliary RF Output
Provides a portion of the RF output at
a rear panel BNC connector. This
signal is tapped off of the RF output
signal before the level detector, so
frequency is accurate, but level is not.
607XA-870
Reverse Power Protection
Provides reverse power protection for
(withstands up to 50 watts protection
from a 50 Ohm source over the
frequency range of 200 kHz to 1040
MHz and will withstand up to 50V dc).
1-6