General Dynamics R2600 Series User Manual

17-3.5 Remote Operation
All R2600 Series Communications System Ana-
lyzers are equipped with a standard RS-232 inter-
face. Optionally, the R2670 is equipped with an
IEEE 488 (HP-IB / GPIB) interface. Either of
these interfaces may be used to remotely control
the analyzer using a set of commands, queries,
and responses that are defined in the General
Dynamics R2600 Series Communications System
Analyzer Programming Reference Manual (68-
80309E55).
17-3.6 HELP Key
The analy
zer provides on-screen operating
instructions via the dedicated HELP key. Help
screens are organized such that each display area
has an associated help screen pertaining to that
area of the screen. System help is available via a
softkey within each help screen. Use the return
softkey to return to the function in progress.
17-4 ENCRYPTION CAPABILITIES
When in ASTRO mode, the R2670 can operate in
clear, hardware encrypted or software encrypted
modes. ASTRO equipment converts normal
speech patterns to their digital equivalent and
then uses an encryption algorithm to encrypt data
for transmission. A receiving radio, using the
same algorithm and a matching key,
automatically reverses the process so you can
hear a normal audio message.
A set of either U.S. or International encryption
algorithms is available with the ASTRO Option.
Algorithms include Data-Encryption System
(DES) - a U.S. Federal Government encryption
standard, Digital Voice Protection (DVP) - a
Motorola Proprietary encryption algorithm, and
DVI - a Motorola Proprietary encryption
algorithm for international use only. Within a set,
each algorithm is individually selectable:
 Domestic: DES-XL, DVP-XL
 International: DVI-XL, DVP-XL
17-5 TEST SETUP
17-5.1 Connecting a Radio
Use a 50 ohm BNC cable and an N to BNC
adapter to connect from the RF I/O port of the
R2670 analyzer to the antenna port of the radio as
shown in figure 17-4.
CAUTION
When in Monitor mode, adjust the squelch to
where the LED indicator for squelch just
turns off or is closed. When the signal from
the radio is present, the squelch LED will
illuminate indicating that squelch has been
detected and there is a signal present.
CAUTION
Observe the input power ratings and
warnings of the analyzer to insure that no
damage occurs to the analyzer.
217

General Dynamics R2600 Series Specifications

General

Brand	General Dynamics
Model	R2600 Series
Category	Measuring Instruments
Language	English