Signal Sources
2050 Series
Modulation Capability The 2050 combines comprehensive analog modes, AM, FM, PM andPulse (optional), with I Q vector modulation. A digital mode usinginternal
DIGITAL SIGNAL PROCESSOR (digital signal processing) is provided to convert digi-tal data into complex modulation formats as shown in the following
table.
Designed to meet the needs of modern digital radio technologies up to 5.4 GHz
•PSK, FSK, QAM, GMSK •I and Q modulation to 10 MHz (1 dB bw.)•External digital data input •Internal PRBS data source •Excellent accuracy and stability •Envelope control for RF bursts •Programmable channel filter characteris-tics •Variable data rate control •NADC, PDC, GSM, TETRA plus others •Wide band DCFM for fast FSK
•Baseband I & Q outputs •Electronic attenuator option
FSK2 and 4 levelGMSKPSK2, 4 and 8 levelDPSK (Differential)2, 4 and 8 level
Phase Offset DPSK2, 4 and 8 levelTime Offset PSK4 levelQAM4, 16, 64 and 256 level The 2050 series of digital and vector signal gen-erators covers the frequency range 10kHz to1.35GHz (2050), 10kHz to 2.7GHz (2051) and
10kHz to 5.4GHz (2052). These instrumentsare suitable for a wide range of applicationsincluding the testing of new digital communica-
tion systems. Two FM modes are available, wideband FM (>10MHz) for fast FSKor video applications and a 1MHz bandwidth mode. Both modesoffer FM deviations up to 1% of carrier frequency. FM is available as
either DC or AC coupled. A patented FM nulling correction systemeliminates carrier frequency offsets that occur with lesser generatorswhen using DCFM, and allows the 2050 to be used confidently with
Wireless LAN or paging equipment such as POCSAG, FLEX
TM andERMES. Vector Modulation In Vector mode the signal generator accepts I and Q modulationinputs with 10MHz, 1 dB bandwidth. This precision modulatorenables any modulation characteristic to be simulated with a highdegree of accuracy, typical vector errors of less than 0.5% are possi-
ble. The excellent temperature stability and drift characteristics of
the modulator ensure calibrated signals are always available making
this the ideal choice for demanding research and development appli-
cations as well as in manufacturing of digital communications sys-
tems. For the very latest specifications visit
www.aeroflex.com