Sony ICF-6800W - Page 10

ICF-6800W |
FREQUENCY RELATIONSHIP
SW
BAND
SELECTOR
VCO1
FREQ.
VCO2
FREQ.
VFO
FREQ.
10 MHz STEP 1 MHz STEP (Oscillates in 1 MHz steps and Varied by TUNING
(MHz) (MHz) repeatedly oscillates from 0 to 9). knob.
0 0 19. 055~ 20. 055.(MHz) 28 (MHz) 1,055 — 2.055 (MHz)
1 20. 055 ~ 21. 055 29
2 21. 055~ 22. 055 30 (VFO actually oscillates at frequencies from 0.975
3 22. 055 ~ 23. 055 31 to 2.075 MHz. For example, at 1 MHz, when the
is 0.975 MHz, the frequenc
4 23. 055~24. 055 25 frequency of the VFO is q vy
of VCO! will become 19.975 MHz. When the fre-
5 24. 055~ 25. 055 33 quency of the VFO is 1.055 MHz, the dial scale
6 25. 055~ 26. 055 34 will be exactly 0.)
The VFO is also used as the local oscillator for
7 26. 055 ~ 27, 055 : ;
: 2 MW reception. Fig. 18 shows the relationship
$ 27. 055~ 28. 055 36 between readings on the scale drum in the MW
9 28. 055 ~ 29, 055 37 and SW receptions on the one hand and the
10
0
29.
055~30.
055
og
frequencies
on
the
other.
ee
1 30. 055 ~ 31. 055 29
0.975 MHz 1.055 MHz 2.055 MHz 2.075 MHz
2 31. 055 ~ 32. 055 30
~ } VFO FREQ. '
3 32. 055 ~ 33. 055 31 520 kHz | RE ! 1,620 kHz
4 33. 055 ~ 34. 055 32 fo pe +
jSOGRH2 1,600 kHz }
5 34. 055 ~ 35. 055 33 \ '
6
35.
055
~
36.
055
34
bot.
EE
0 SW band scale 1,000
7 36. 055 ~ 37. 055 35
8 37. 055~ 38, 055 36 Fig. 18
9 38. 055 ~ 39. 055 37
20 0 39. 055~ 40. 055 28
1 40. 055~41. 055 29
2 41. 055 ~ 42. 055 30
3 42. 055~ 43. 055 31
4 43. 055~ 44.055 32
5 44, 055 ~ 45. 055 33
6 45. 055~ 46, 055 34
7 46. 055 ~ 47. 055 35
8 47. 055 ~ 48. 055 36
9 48. 055~ 49. 055 37
—~10—