Novatech Instruments 1940 A/S-04 Signal Generator

Novatech Instruments 1940 A/S-04 Signal Generator

🧰 Overview of Novatech 1940A

• Rack‑mount DDS (Direct Digital Synthesis) multi‑channel function: the 1940A is a 1U rack-mount unit supporting up to 4 independent output channels, each capable of generating sine waves up to 400 MHz

• Frequency resolution: 1 Hz steps (per the similar 2940A bench model, 1940A is same architecture)

• Internal vs. external reference: features a TCXO (temperature‑compensated crystal oscillator) with lock‑in to an external 10 MHz standard

• Control interface: front‑panel and RS‑232 serial control; configuration memory in EEPROM

Technical Highlights

• Up to four simultaneous signals, individually adjustable in frequency, phase, and amplitude.

• Phase‑synchronous outputs — ideal for multi‑tone testing.

• Low phase noise & spurious output. Novatech’s similar DDS units (like 409/440/2940 series) often specify phase noise better than –120 dBc/Hz and spurious levels <–50 dBc

• Frequency range: each channel spans roughly 200 kHz to 400 MHz

Typical Uses

• RF system testing with multi-carrier or phased-array signals.

• Lab-grade frequency source with high resolution and stability.

• Educational and research setups for signal generation.