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 TM 11-6625-3017-14
1.2 DATA SUMMARY
Characteristics
Performance
Supplementary information
R.F. input
Frequency range:
4 MHz to 1000 MHz.
Sensitivity:
Less than 20 mV between
Typically less than 10 mV.
4 and 250 MHz.
Less than 50 mV between
Typically less than 25 mV.
250 and 500 MHz.
Less than 100 mV between
Typically less than 50 mV.
500 and 1000 MHz.
Maximum input:
3 V r. m. s. (200 mW).
Input impedance:
Nominally 50 Q.
Local oscillator
Variable frequency operation:
The internal oscillator covers
External oscillator input required
two ranges 5. 5 to 11 MHz and
approximately 200 mV.
22 to 44 MHz, harmonics being
used for other local oscillator
frequencies.
Calibration accuracy:
3%.
Crystal operation:
Up to three crystals within the
frequency range 22 to 44 MHz
may be fitted for use with input
frequencies between 20. 5 and
1000 MHz.
I.F.output
Frequency:
1.5 MHz.
Amplitude:
Between approximately 250 and
750 mV e. m. f.
Nominally 10 kΩ.
Output impedance:
F.M. measurement
Carrier frequency range:
4 to 1000 MHz.
Usable up to 1.6 GHz with internal
oscillator and at higher frequencies
with an external oscillator.
1-2
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