Fluke 6070A - Page 7

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