MECA 490-1 CALIBRATION and MECA 490-1 REPAIR
 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the MECA 490-1 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   MECA 490-1   Description / Specification:    
MECA 490-1 4 GHz N-Type Male Termination

The MECA 490-1 is an N-Type Male Termination. Terminations, or loads, offered by MECA are matched to 50 ohms characteristic impedance. Matched loads provide a termination designed to absorb all the incident power with very little reflection, effectively terminating the line or port in its characteristic impedance. These terminations are used in a wide variety of measurement systems, directional couplers and isolators, and in transmitter applications such as dummy loads.

Specifications.
Frequency Range: DC - 4.0 GHz.
Average Power Rating: 100 watts (5K watts peak) @ +25°C.
Connector: N-Type.
Connector Gender: Male.
VSWR (Max):
  DC - 1 GHz @ 1.10:1.
  1 GHz - 2.4 GHz @ 1.20:1.
  2.4 GHz - 4 GHz 1.30:1.
Operating Temperature: -55°C to +85°C.
Impedance: 50 Ohms.
RF Power: 5 µSec pulse, 0.05% duty cycle.



 



Related RF Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Average Power
Average power means that the energy transfer rate is to be averaged over many periods of the lowest frequency involved. For a CW signal, the lowest frequency and highest frequency are the same, so average power and power are the same. For an amplitude modulated wave, the power must be averaged over many periods of the modulation component of the signal as well.

Harmonic
A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency, i.e. if the fundamental frequency is f, the harmonics have frequencies 2f, 3f, 4f, . . . etc.

Phase Noise
Phase noise is the frequency domain representation of rapid, short-term, random fluctuations in the phase of a waveform, caused by time domain instabilities. Phase noise (L(f)) is typically expressed in units of dBc/Hz, representing the noise power relative to the carrier contained in a 1 Hz bandwidth centered at a certain offsets from the carrier.

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