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MIL-N-8l207A(AS)
normal TACAN responses are within specified limits within 2
seconds after the step function.
Blanking Pulses
3.4.11
Internally Generated Blanking Pulse - The
3.4.11.1
receiver-transmitter shall generate a single  blanking pulse, with
characteristics specified below, for each interrogation pulse pair
transmitted and for each single pulse reply transmitted.  The
blankinq pulse shall be capable of suppressing other pulse
equipments in the same frequency range, including another
equipment identical to the one described by this specification.
Positive polarity
(1)
(2)
Not less than 15 nor more than 70 volts
amplitude across 500 50 ohms in parallel
with 1,000 pf load impedance.
Not less than 20 volts per microsecond
(3)
rate of pulse rise (10% to 90% of pulse
amplitude) .
Not less than 10 volt-s per microsecond
(4)
rate of pulse decay (90% to 10% of pulse
amplitude) .
50 3 microseconds duration at the 15
(5)
volt level.
The 15 volt level on the leading edge
(6)
shall occur sooner than the 10% amplitude
point on the leading edge of the
corresponding transmitted reply pulse by
an amount not less than 0.8 nor more than
5.0 microseconds.
Any spurious output at the blanking pulse
(7)
terminal shall be not more than one volt
in amplitude.
The application of the internally
(8)
generated blanking pulse to its own
receiver shall be consistent with the
receiver recovery times necessary for
operation in both the X and Y modes.
17.

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