- Built-in modulation for CW, AM (1 kHz, 80% depth), and pulse PM modes.
- Capable of generating a 217 Hz, 12.5% duty cycle pulse (PM) to simulate mobile telephone TDMA noise.
- Designed to boost tracking generator output up to ≈500 mW (1 dB compression point +27 dBm).
- Ideal signal source for driving near-field EMC probes to locate sensitive spots in circuits.
- Suitable for driving Tekbox TEM cells to create electric fields for radiated immunity testing.
TBMDA2
Modulated Wideband Driver Amplifier
The Tekbox TBMDA2 is a modulated wideband driver amplifier designed as an inexpensive RF signal source for immunity testing of electronic circuits and products. It is meant to be driven by the tracking generator output of a spectrum analyzer and provides boosted RF output to drive EMC test fixtures like near-field probes and TEM cells. It supports CW, AM, and PM test signals, including a specialized 217 Hz pulse for simulating mobile phone noise.
Features
Key capabilities and advantages
Specification
Technical specifications and parameters
| Input / Output | 50 Ohm, SMA female |
| Nominal supply Voltage | 5V, typ. 700mA, Mini-USB-B connector |
| Maximum supply voltage | 5.5V |
| Maximum input power | -8dBm continuous, 0 dBm @ 25°C for 5 minutes max. |
| Operating temperature range | -20°C to 50°C |
| Frequency range | 10MHz – 1.5 GHz |
| 1dB output compression point @ 10MHz | +24 dBm typ. |
| 1dB output compression point @ 100 MHz | +27 dBm typ. |
| 1dB output compression point @ 1 GHz | +27 dBm typ. |
| 1dB output compression point @ 1.5 GHz | +26.5 dBm typ. |
| Harmonics | < – 30 dBc typ. |
| Internal modulation frequency AM | 1 kHz ±10% |
| Internal modulation frequencies PM | 1 kHz ±10%, 217 Hz ±20% |
| Duty cycle, PM | 50% ±10% @ 1 kHz; 12.5% ±20% @ 217 Hz |
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