SPECIAL SSB/CW RECEPTION TECHNIQUES
Many stations transmit unmodulated telegraph transmissions in the shortwave
band. To receive these special Morse code characters, the radio uses a special circuit, a
Many stations transmit voice signals with a suppressed carrier in the single side band.(SSB),part of the radio trans- mission spectrum that lies to the side of the primary frequency signal. Amat- eurs tend who transmit voice below 10 MHz use the lower side band (LSB).
Above 10 MHz, they use the upper side band (USB). Commercial utility stations generally use the USB. A carrier has to be added to make these signals audible.
4. Rotate the BFO PITCH control to the |
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midpoint. | BFO PITCH | RF GAIN |
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5. Rotate the RF GAIN control to the |
| RF GAIN |
MAX position | BFO PITCH | |
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| BFO HTCH | RF GAIN |
TO RECIEVE CW |
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1. | Turn on the radio. |
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| POWER |
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| MINI I I I I I I I [ | I IMAX VOLUME | |
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2. | Extend the antenna fUlly straight up. |
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3. Set the BFO switch to IN.
iFMi
MONO STEREO BFO LOCK
!DIBmJ. . .. ..
WIDE NARROW OUT"*'IN OUT iN
6. Press the AM band button to select |
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the AM band. | FM AM LW MW SW | |||
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7. Tune in the CW station using the |
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tuning knob, or enter the frequency | LIIIIIIIIIIIR | BALANCE |
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using the direct access buttons. | ~ |
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| LOIIIIIIIIIIIHI | TREBLE |
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| ODD456 | |||
| CJ CJ CJ | |||
| 7 | 8 | 9 | |
| CJ CJ CJ | |||
| O/SEC | EXECUTE |
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| CJ ( |
| 1 | |
28 | 29 |