Tron SGÜB RF signal generators and calibration

Quick answer: SGÜB is Tron Elektronik’s RF signal generator unit product group. The SSB 2026 Product Catalogue entry lists the group under the model code SGÜB-3000-0504 with a frequency range of 30-3000 MHz. The same entry also carries an RF signal generator power combiner under the abbreviation SÜGB. On the company’s archived product pages the heading SGUB-3000-0504 appears as a signal distribution unit and SUGB-30-0402 as a signal switching unit; neither page contains any technical description. Output level, frequency resolution and phase noise values for these products have not been officially disclosed.

What is an RF signal generator for?

A signal generator is a device that produces an RF signal of known frequency and level. Its purpose is not to transmit but to provide a reference. The way to find out whether a receive chain is working correctly is to feed its input with a signal of known characteristics and measure what appears at the output.

That function turns up in three places in defense systems. The first is production and acceptance testing: before a device leaves the factory, its conformity to specification is verified this way. The second is field maintenance: on a faulty chain, the stage where the problem lies is narrowed down by injecting a reference signal. The third is in-system calibration, the use in which the signal generator becomes a permanent part of the system.

The calibration signal and the direction finding link

That third use has a direct counterpart in Tron Elektronik’s product family. The description of the company’s TRDF antenna switching units includes a separate calibration signal switched onto the output ports: on the TRDF-6000-29-22 that signal can be routed to 22 RF output ports, and on the TRDF-6000-7-28 to seven output ports.

That calibration signal needs a source, and the signal generator unit supplies it. Because phase and amplitude differences between channels turn into measurement error in direction finding systems, a known reference is fed into the system at regular intervals, each channel’s response is measured and the difference is written into a table. Having the signal generator inside the system means the procedure can be carried out in the field without removing equipment.

Product group table

Model	Catalogue description	Archived page title	Frequency
SGÜB-3000-0504	RF signal generator (SSB 2026 entry)	SGUB-3000-0504 Signal Distribution Unit	30-3000 MHz
SÜGB	RF signal generator power combiner (SSB 2026 entry)	SUGB-30-0402 Signal Switching Unit	Not officially disclosed.

There is a difference in the table between the catalogue description and the archived page title. The SSB catalogue describes the SGÜB-3000-0504 as a signal generator, while the title of the archived English product page calls it a signal distribution unit. That difference may stem from the product being a combined unit that both generates a reference signal and distributes it to several ports; but that is an interpretation, and no company statement exists on the point. The figure 3000 in the model code gives the upper frequency limit in MHz, consistent with the coding logic in the company’s other products.

Antenna measurement setup inside an anechoic chamber — Anechoic chambers allow a generated RF signal to be measured in a reflection-free environment. Source: Wikimedia Commons, NASA/JPL-Caltech, public domain

What does a power combiner do?

The description used for the SÜGB in the SSB catalogue is signal generator power combiner. A power combiner is the component that works in the opposite direction from a divider: it sums the signals at several inputs into a single output.

In a calibration application the counterpart of that function is this: where a system holds more than one reference source or more than one band, they have to be fed onto a single distribution line. The combiner performs that summing while preventing the sources leaking back into one another. Isolation is critical here; when one source’s output finds its way back into another’s input, the measurement is corrupted.

Unpublished data

This product group is the one with the least information in the company’s public sources. Both archived product pages carry only a title and the company’s general promotional text; the product-specific technical description section is empty. For that reason the following could not be given in this file: output power and level range, frequency step resolution, phase noise, harmonic and non-harmonic suppression, modulation capability, stability and reference oscillator type, and interface and remote control protocol.

The company’s other product families offer remote control over TCP/IP and a network-supported built-in test (BITE) option; whether those features are present in the signal generator units has not been published. The company’s general profile is in the hub file.

Software-defined radio receiver board — Software-defined radio boards make up the receive side used in measuring a generated reference signal. Source: Wikimedia Commons, © 1971markus, CC BY-SA 4.0

Frequently asked questions

What does SGÜB stand for?

In the SSB 2026 Product Catalogue entry, SGÜB denotes the RF signal generator unit product group. On the company’s archived English pages the same model appears under the coding SGUB.

What is the frequency range of the SGÜB-3000-0504?

The SSB 2026 catalogue gives 30-3000 MHz for this group. Output level and other performance values have not been officially disclosed.

What is the difference between a signal generator and a spectrum analyser?

A signal generator produces a signal of known characteristics; a spectrum analyser measures signals that are present. In test setups they are generally used together.

Are these units used in direction finding systems?

The company’s TRDF antenna switching units specify a separate calibration signal switched onto the output ports. It is functionally consistent that the signal generator unit supplies that source; but the company has published no explicit statement on the two products being used together.

Why is there so little information on these products?

The company’s archived product pages carry only a title for these two models, with no technical text published. No other public source could be found either.

Sources and verification note

The only verified data attributed to the products in this file are the model code, product description and 30-3000 MHz frequency range in the SSB 2026 Product Catalogue entry. Because the archived product pages contain no technical description, no performance values are given. The difference between the catalogue description and the archived title is stated explicitly in the text, and the explanation offered for it is marked as an interpretation. Accessed: August 12, 2026.