Vaisala RVP10, Быстрый справочник по оборудованию

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3.2.2.1 IFDR10 inputs
All IFDR10 inputs are on SMA connectors. The IF signal input is made immediately after the
STALO mixing/sideband filtering step of the receiver. The required signal level for both the IF
signal and burst is +11.2 dBm for the strongest expected input signal.
You can use a fixed attenuator or IF amplifier to adjust the signal level to be in this range. The
maximum signal level is 16 dBm.
Table 6 IFDR10 inputs and outputs
Input Description
IF signals IFDR10 has 6 Rx input channels for IF signals: Rx 0 - Rx 5 .
The user can select which channels are used for primary and secondary
polarization IF signals and for wide dynamic range.
IF burst pulse sample
for magnetron Received over ADC-E .
Trigger input or output 2 trigger outputs on SMA connectors: Trig 0 and Trig 1 ( 50 Ohms / 4 V).
4 trigger inputs in the GPIO panel
Digitizing is performed for both the IF signal and burst channels from a user-selectable
sampling frequency range of 190 ... 240 MHz at 16-bit resolution to sub-nanosecond accuracy.
This provides 92 ... 107 dB of dynamic range (depending on pulse width) without using
complex AGC, dual A/D ranging, or down-mixing to a lower IF frequency. Each A/D converters
is time synced within 1 nanosecond to ensure sampling in multiple channels is of the nearly
equivalent targets.
RVP10 provides AFC support for tuning the STALO of a magnetron system. Alternatively, the
magnetron can be tuned by a motorized tuning circuit controlled by RVP10.
Chapter 3 – Hardware description
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