The company also provides products for wireless communications, the electronics industry, aerospace and defense, homeland security and critical infrastructures.

The Wehrmacht's sustained demand for radio equipment forced manufacturers to concede their production as part of the militarization of the Third Reich's Economy.

[2] After business activities were resumed in 1945, the US Army placed a major order to equip the then United States Air Force base in Erding that ensured the company's continued existence.

Although the US secret services operated SIGINT reconnaissance stations in cooperation with BND, for example in Bad Aibling, Rohde & Schwarz's communications were also intercepted by NSA.

Rohde & Schwarz is or was on an NSA hit list made public by 2010 surveillance disclosures of Edward Snowden.

In 2018 a joint venture with Rheinmetall was established: RRS-MITCOS was designed to develop digital solutions for the German Bundeswehr.

This growth was not exclusively organic, but also included company acquisitions such as Lancom - one of the leading manufacturers of network infrastructure.

[10] With its three Test & Measurement, Technology Systems and Networks & Cybersecurity divisions the company generated net revenue of EUR 2.93 billion in the 2023/24 fiscal year.

These systems are based on a product from Topex SA, a company in which Rohde & Schwarz acquired a majority interest in 2010.

[13] Rohde & Schwarz SIT GmbH develops crypto products and systems for government agencies, the German armed forces, authorities, the military and private industry.

The radios work at HF, UHF and VHF spectrums and are based on an internationally common Software Communications Architecture standard with backward compatibility.

Rohde & Schwarz was awarded the contract for 2.9 billion EUR in 2022 for Armed Forces Joint Connected Radio Equipment (Streitkräftegemeinsame verbundfähige Funkausstattung (SVFuA)) and will deliver its Soveron program.

Rohde & Schwarz develops measuring devices for radio links as well as radar and satellite communication systems for the aviation and defense industries.

Rohde & Schwarz provides transmitters for analog and digital TV; in the US also in the ATSC standard, in Asia and South-America for ISDB-T and in DVB-T2 for europe.