The Advantest TR4135 Spectrum Analyzer uses a synthesized local oscillator to enable high stability spectrum analysis. It features frequency coverage from 10 kHz to 3.6 GHz, input range of -131 to +20 dBm, a maximum resolution of 30 Hz, residual FM of 30 Hzp-p and skirt noise characteristics of -105 dBc/Hz at 20 kHz from the carrier.
The Advantest TR4135 is suitable for measurements on 900 MHz mobile radiotelephone equipment, fixed broadcast stations and mobile A-band equipment. It can be used for satellite broadcast received field strength measurements and in the evaluation and testing of CATV equipment. It enables high-precision frequency measurements and directly readable field strength measurements by means of antenna calibration and is further capable of quasipeak-value measurements conforming to CISPR standards.
Specifications
| Frequency range | 10 kHz - 3.6 GHz |
| Noise sidebands | 85 dBc / Hz: | 1 kHz offset |
| 100 dBc/Hz: | 10 kHz offset |
| 105 dBc/Hz | 20 kHz offset |
| Stability | Frequency drift 500 Hz/min, span ≤2 MHz |
| Residual FM 30 Hzp-p max, span ≤2 MHz |
| Resolution | 3 dB bandwidth 30 Hz to 1 MHz |
| 6 dB bandwidth 200 Hz, 9 kHz, 120 kHz |
| Measurement range | -131 dBm to +20 dBm |
| Dynamic range | Average noise level: | -116 dBm +1.55 f (GHz) dB max. (at 1 kHz resolution bandwidth) |
| 2nd and 3rd order distortion: | -70 dB max. (-30 dBm input level, at 10 MHz or greater) |
| Residual response: | -100 dBm max. (at 100 kHz or greeter) |
| Sweep | Sweep time: | 50ma to 1000s |
| Trigger modes: | Free-run, line, video, external, single, TV-V |
| Maximum input level | +20 dBm (at 20-dB input attenuation or greater) ±25 VDCmax |
| Options | Option 04 Occupied bandwidth Measurement | Option 06 Memory card |