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E2730A VXI RF TUNER
SECTION 1
1.1 ELECTRICAL CHARACTERISTICS
1.2 MECHANICAL CHARACTERISTICS
GENERAL DESCRIPTION
The
E2730A
VXI
microprocessor-controlled, synthesized tuner used for surveillance and
monitoring operations within the 20 to 2700 MHz frequency range. The
E2730A is packaged in a single slot "size C" VXI (VMEbus Extension for
Instrumentation) module making it ideal for applications where high
density and a high degree of integration is required. See Figure 1-1 for a
front, side, and rear view of the tuner.
The E2730A features low phase noise frequency synthesizers and high
dynamic range. The unit achieves a third-order input intercept point of
+5 dBm while maintaining a typical noise figure of 12 dB in the 1200 to
2700 MHz range and 11 dB in the 20 to 1200 MHz range. See Table 1-1
for a list of general specifications.
The E2730A has a frequency tuning range of 20 to 2700 MHz, in 1-kHz
steps, and provides up to 56 dB of manual gain control.
The E2730A monitors and reports any hardware failures within the unit.
This includes the lock status of the Local Oscillator loops (LOs) contained
in the tuner module.
The E2730A is operated remotely via a VXI interface or an RS-232 port
located on the front panel. By placing the tuner directly on a standard
instrumentation and computing bus, system integration is simplified and
enhanced. All functions are accessible via the VXI interface, except for
power on/off control. All data is passed to and from the E2730A using
VXI standard word serial protocol with a command format based on the
IEEE-488.2 standard.
The E2730A
provides a wideband 70 MHz IF output signal with a
36 MHz bandwidth. Other outputs include samples of the 1st LO and 2nd
LO synthesizers that may be used in another E2730A to form a two-
channel, phase-coherent tuner.
The E2730A VXI RF Tuner is packaged in a single-slot, C-size, VXI
module (9.2 inches high x 13.6 inches deep x 1.2 inches wide). The
mechanical packaging design uses modern surface-mount technology.
RF isolation is provided by fastening multilayer PC boards into a milled
aluminum chassis.
Five SMA-type connectors (RF IN, 70 MHz IF OUT, 10 MHz EXT REF,
1st LO IN/OUT, and 2nd LO IN/OUT are provided on the E2730A front
panel to pass RF/analog signals in and out of the unit. The front panel also
GENERAL DESCRIPTION
RF
Tuner
is
a
general
purpose,
1-1
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