The MA25200A high power protection module safeguards the S412E ports from high power portable, mobile, or base station transmitters. It can accept 125 watt base station transmitters for up to one minute and 25 watt mobile transmitters for indefinite periods. It combines the signal generator port into the test port to support receiver sensitivity testing.
Use the MA25200A high power protection module to safeguard the S412E ports from high power portable, mobile, or base station transmitters. The MA25200A attenuates RF power levels up to +51 dBm (125 W) to safe levels for measurements.
The MA25200A connects and mounts to the RF input connector. It has an N(m) coaxial input cable that connects to the Signal Generator output. The top N(f) connector can be connected directly to portable or mobile antenna ports or base station transmit or receive ports. The nominal 40 dB insertion loss applied to the RF input port and signal generator output ports can be compensated in the S412E amplitude offset menus so that the displayed levels match the levels at the input of the MA25200A.
The MA25200A provides a very flat ±1 dB insertion loss response (up to 1 GHz) to support accurate amplitude measurements.
| Key Features |
Protects your investment
- MA25200A safeguards the S412E ports from high power portable, mobile, or base station transmitters
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| Combines signal generator and RF input port into a single connection |
Attenuates RF power levels up to +51 dBm (125 W) by 40 dB
- Maximum continuous power +44 dBm (25 W)
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Alerts user of over power conditions
- Audible alarm at 90 °C, nominal
- Red LED when internal temperature exceeds 90 °C, nominal
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| Optional carrying case enables module to be stored when not needed |
| Specificationsᵃ |
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MA25200A
High Power Tx/Rx Input Protection Module
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| Features | Parameters |
| Maximum Input Power | +51 dBm (125 W) for one minute or until alarm sounds |
| Maximum Continuous Input Power | +44 dBm (25 W) |
| Input Port Couplingᵇ | DC |
| Insertion Loss (typical) | RF In Port: 40 dB ± 1 dB, 500 kHz to 1.6 GHz
Signal Generator Out: 40 dB ± 1 dB 500 kHz to 1.0 GHz, ± 2.0 dB > 1.0 GHz to 1.6 GHz
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| Alarm | Audible alarm at 90 °C, nominal |
| Power Supply | USB power supplied by instrument for cooling fan and alarm |
| Cool Down Time | From 90 °C: 2 minutes, typical |
| LED Indicators | Green LED: Ready
Red LED: Internal temperature > 100 °C, typical
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| Size | 64 mm x 162 mm x 60 mm
(2.5 in x 6.4 in x 2.4 in)
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| Weight | 583 g
(20.6 oz)
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| Case | 760-279-R, padded nylon case |
Notes:
a. RF specifications apply when connected to a 50 Ω source
b. DC Coupling applies to revision 2 instruments only
