• 9 kHz to 3 GHz
• Resolution bandwidth 200 Hz to 1 MHz (to 20 MHz with FS315)
• Tracking generator for scalar transmission and reflection measurements (FS315)
• Frequency counter with 1 Hz resolution
• Maximum input level +33 dBm
• Ergonomic user interface
• Remote control via USB interface
• Electronic attenuator with 2 dB steps
• Measurement functions: signal tracking, TOI measurement, marker and delta markers, noise markers, signal bandwidth
• Channel Power, OBW, Return Loss, Transmission measurements (FS315)
• RMS detector (FS315)
• AM/FM Demod (FS315)
• Stores up to 10 set-ups and 5 traces
• Small size - 8.6 x 5.8 x 13.8 inches, 15.4 lbs

The FS300 is a highly accurate spectrum analyzer with a frequency range of 9 kHz to 3 GHz. Featuring modern, digital frequency processing techniques, it offers high measurement quality at an attractive price. The new FS315 is additionally equipped with a built-in 3 GHz tracking generator for scalar network analysis; the tracking generator is also suitable for generating fixed-frequency signals. Plus, the FS315 includes various detectors for evaluating measurement results and allows electric field strength measurements taking into account the antenna factors.

High-quality measurement characteristics
Since the displayed average noise level is typically -115 dBm (300 Hz), even weak signals can be reliably detected. Points in the measurement trace are displayed with an accuracy unrivalled in this price class.

Resolution Bandwidth from 200 Hz to 1 MHz/20 MHz
With 16 different digitally implemented resolution bandwidths from 200 Hz to 1 MHz, the R&S FS300 can be optimally adapted to different measurement tasks. The FS315 extends the range up to 20 MHz. Large bandwidths for overall measurements ensure short sweep times while small bandwidths provide high frequency resolution and low noise level.

Scalar Network Analysis
The FS315 with built-in tracking generator is the perfect solution for costefficient testing of the transmission behavior of filters, cables, amplifiers and other components. With the optional VSWR bridge, reflection measurements can also be performed. Entering any frequency offset between 0 Hz and 3 GHz allows measurements on frequency-converting DUTs. For simple applications, the tracking generator can be used as a signal generator with a fixed frequency.

Locating EMC Weak Spots
The HZ-15 Near-Field Probe Set are diagnostic tools used for locating EMC weak spots on printed boards, integrated circuits, cables, shieldings and other trouble spots. The HZ-15 is adequate for emission measurements from 30 MHz to 3 GHz. The HZ-16 Preamplifier, provides approximately 20 dB gain and a noise figure of 4.5 dB, increases sensitivity for measurements. In combination with the FS300/FS315, the HZ-16 Preamplifier and HZ-15 Near-Field Probe Set are a cost-effective means of analyzing and locating sources of interference during development.

Frequency counter with 1 Hz resolution
With the aid of the built-in frequency counter, the signal frequency can be measured with 1 Hz resolution in the entire frequency range. An additional frequency counter is therefore not required which saves space on the lab bench.

Maximum input level +33 dBm
The maximum input level of the FS300/315 permits signals to be measured far beyond the common limits. Mobile phones with a maximum output power of 2W can be directly connected to the spectrum analyzer without external attenuators being required.

Ergonomic user interface
Operation is menu-guided so that even untrained users will quickly obtain correct measurement results. Clear structures simplify navigation within the menus. Users familiar with spectrum analyzers from Rohde & Schwarz will quickly find the menu items they know from other Rohde & Schwarz instruments. The bright TFT color display with 320x240 pixel resolution allows traces to be read even at an angle or with high background lighting.

Remote control via USB
Another new feature of the FS300/315 is the USB remote-control interface. You can select external PC control even during instrument operation by means of "hot plug and play" simply by establishing a USB connection. This is the first time that lab test equipment can be remote-controlled via USB without any restrictions. With the aid of the USB cable, the R&S FS300/315 can be operated even at positions which are difficult to access, such as. in a shielded chamber. A Windows 2000/XP compatible driver for different development environments is provided with the R&S FS300/315. A PC software package is also available for remote control of the R&S FS300/315 and for result display and recording.

Compact Package
The FS300/315 is notable for its compact and robust design. Whether on the bench or in the rack, it takes up a minimum of space. Two series instruments can even be accommodated next to each other in a 19-inch rack. The new, adjustable handle fulfills several functions. It serves for carrying the FS300/315. It can be moved and locked in almost any desired position. With the aid of the handle, the instrument can be set up in a tilted position so that an optimum viewing angle can be obtained for the display. If the handle is in the way, it can easily be put away so that several FS300/315 can be stacked, for instance.

Internal memory for settings and traces
Up to five traces and ten settings can be stored in the internal memory of the R&S FS300. Frequently used settings can be easily called up and the same parameter need not be set over and over again. This also prevents setting errors. Stored traces can be printed for easy documentation.