TTi can supply both RF spectrum analyzers,
from Rohde & Schwarz and TTi, and lower frequency FFT spectrum
analysers (dynamic signal analysers) from Stanford Research
Systems.
TTi
offers the new PSA series of low cost handheld spectrum analysers offering exceptional value for money.
Rohde & Schwarz
offer several lower cost spectrum analysers The Smart Instrument series includes the FS300 and new FS315 with tracking generator. Other products
include the FSH series of handheld spectrum analyzers.
SRS
(Stanford Research Systems) offer FFT analysers with built-in low distortion source with DC to >100kHz bandwidth and 145dB dynamic range in swept-sine mode.