The 2026A/B are ideal for use in R&D and manufacturing where
there is a need for two or three combined sources for conducting
tests such as intermodulation and selectivity performance of components
and receiver assemblies.
To aid the user to undertake difficult test procedures simply and
without ambiguity, the 2026A/B family provide application-specific
modes of operation. Application modes include amplifier two and
three-tone intermodulation, receiver intermodulation and receiver
selectivity. A rotary control and up/down keys allow easy modification
of the selected parameters.
Each signal source is capable of being independently modulated from
its own fully programmable modulation source to ensure maximum
flexibility. The internal modulation sources are each capable of generating
sine, triangle or square wave signals.
Amplitude, frequency and phase modulated carriers can be generated
from the internal modulation sources or from the independent
external inputs. The frequency modulation system provides excellent
performance in the DC coupled mode with very low carrier frequency
error and stability ensuring that the generator can accurately test receivers sensitive to small frequency errors.
Each source is capable of being independently pulse modulated to
allow the simulation of TDD or TDMA RF signal bursts with pulse
on/off ratios of better than 40 dB and a rise time of less than 10 µs.
FSK
In addition to the analog FM facilities, the 2026A/B MultiSource
Generator family supports 2 and 4-level FSK signals from external
logic inputs.

• Two or three high-quality RF signal generators in a space efficient format
  
• Ideal for intermodulation and receiver characterization
  
• Wide frequency coverage: -- 10 kHz to 2.05 GHz
  
• Support for an external signal generator
  
• +24 dBm RF output for effective component testing
  
• Application-specific test modes simplify measurement procedures
  
• User-defined tracking between signal sources
  
• Adjustable carrier phase to allow peaking of three tone intermodulation
  
• Built-in switched combiner network improves measurement uncertainty
  
• Option 116 - adds GSM capability
  
• Option 117 - adds Bluetooth & GSM
  
• Option 118 - adds Fast Pulse Modulation