Table of Contents
Advertisement
So
Te Ne
EE
trong
4. ALIGNMENT
INSTRUCTIONS
THE FOLLOWING EQUIPMENT IS REQUIRED FOR ALIGNMENT
-
"\)
1. Sweep signal en
(Sweep rang of at least 300 kHz, center frequency of 10.7 MHz.)
Signal generator with a frequency range of at least from 100 kHz to 25 MHz for LW and MW, from 85 MHz to
110 MHz and 10.7 MHz MHz for FM.
. Oscilloscope with a wide range amplifier of approximately 100 kHz.
. Test loop, a coil of any size wire, one turn or more.
VTVM (Vacuum tube voltmeter.)
3
. For alignment points, see schematic diagram.
N
Om
& WwW
NOTES
1. During alignment keep the signal generator output at the lowest level where useable output from the set can
be maintained.
|
|
2. Ground connection of signal generator ...
tochassis ground.
3. Generator modulation ... 30% 400 Hz.
ae
4—1MW
ALIGNMENT
1. Set SELECT switch to MW.
;
2. Set signal generator frequency as listed in TABLE 1 MW ALIGNMENT CHART.
3. Proceed as outlined in the TABLE 1 MW ALIGNMENT CHART.
TABLE 1 MW aGNeny
CHART (See figure 11)
Connect Signal
Low end of dial
|
|
Scale at
position
IT-205
caer
ead
IT-206
Maximum
.
is
IT-207
|
| signal
|
generator to test
Low end of
|
Connect VTVM
loop
to SP terminal
Connect Signal
| Connect VTVM
Repeat Step 2 and 3
Repeat Step 4 and 5
osc
|
|
enerator
(Frequency
| Senera
weet
ich eanel ot
Maximum
to test loop
0 oF termina
1650 kHz
ig
°
TC2-
Coverage)
|
dial scale
is
-
Advertisement
Table of Contents
