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TM 11-5820-670-30
2-37. HOMING ADJUSTMENT. (CONT)
EL1AT249
4.
Adjust vertical needle adjust potentiometer R4805, located on homer-detector amplifier
assembly for a center-scale indication on homing indicator.
5.  Vary signal generator output from minimum signal to 10 microvolt. Flags on homing indicator
should disappear when signal generator output is 1.2 microvolt or less; vertical needle
should stay centered ( 1/8 inch).
6.  Set signal generator output to 35 microvolt and adjust horizontal needle potentiometer R4830,
located on homer-detector amplifier assembly, so homing indicator horizontal needle is
1/8 inch below center of indicator.
7.  Adjust signal generator output for 10 microvolt. Set test set LEFT HOMER ATTEN to 3 db, and
adjust center course sensitivity potentiometer R4826 so homing indicator vertical needle
deflects right of center one-half of full scale.
8. Set RIGHT HOMER ATTEN to 3 db and LEFT HOMER ATTEN to 0 db. Repeat step 7 and ensure
homing indicator vertical needle deflects left of center one-half of full scale.
2-149


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