Model 410C
TM 11-6625-1614-15
b. Connect the Model 410C as shown in Figure 5-4. Set Model
410C FUNCTION SELECTOR toACV; RANGE to 1.5 V.
c.
Set frequency response test set to EXTERNAL.
d.
Adjust test oscillator output AMPLITUDE to provide Model
410C reading of 1.4 V; FREQUENCY to 400 cps.
e.
Set frequency response test set METER SET to convenient
SET LEVEL.
f.
Vary test oscillator frequency from 20 cps to 10 Mc. Model
410C should read between 1.25 and 1.55 v at all frequencies.
When checking the frequency response from 20 cps to 50 cps,
disconnect the 11042A from the test set up in figure 5-4. Replace
the probe tip on the Model 11036A and connect directly through a
50-ohm load to the output of the Frequency Response Test Set.
Connect the output of the Test Oscillator directly to the input
of the Frequency Response Test Set.
Observe step g
throughout
the entire operation.
g.
If frequency response test set deflection varies from preset
SET LEVEL, adjust test oscillator output amplitude to return
pointer to original position.
h.
To check Model 410C frequency response from 10 Mc to 480 Mc,
use arrangement described in Figure 5-3.
i.
Set Model 410C FUNCTION SELECTOR to ACV; RANGE to .5 V.
j.
Adjust RF signal generator to provide Model 410C reading
of 0.45 V at 10 Mc. Note power meter reading; mark for future
reference.
5-7
