Ten-Tec SSB-CW-AM, Инструкция по эксплуатации

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OPTIONAL: For Educators and Experimenters
Circuit Stage Demonstrations
Each Phase of the receiver construction process adds several related circuit stages.
In most cases, these circuit sections are capable of "doing something" of possible
interest to you if connected to external test equipment of some kind. For example,
you can hear an oscillator signal using another receiver, 0r use a signal generator to
hear that an IF section is working.
Each Assembly Phase for your receiver kit includes "Progress Test" procedures. Our
goal in such tests is to verify that the completed circuit section simply "works" as
engineered. We specify the simplest possible testing to do this, such as a meter
reading. From experience, we find it best not to include nonessential circuit
performance demonstrations as part of kit building Progress Tests.
Setting up a useful circuit demonstration may require more external equipment than
you have on hand or is really needed. The following testing suggestions are provided
for those builders who enjoy observing or demonstrating what various sections of the
receiver can "do." These possible demonstrations are NOT mentioned in the Progress
Tests: it is up to YOU to return to this section of the manual after each Progress
Test and determine whether you want to try out these suggestions.
Phase 2.0: Frequency Synthesizer
The 3.58 MHz clock oscillator may be heard using another receiver tuned to that
frequency. C2 may be adjusted to exactly 3.5800 MHz using this method. The real
adjustment of C2 is done with the receiver completed and tuned to WWV.
Phase 3.0: 45-75 MHz local Oscillator and PLL
The synthesized LO tunes 45 MHz above the frequency indicated on the display, i.e.
45-75 MHz. In addition to the option of checking the LO output with a frequency
counter, the LO signal may be heard with any receiver capable of tuning in the 45-75
MHz range. Even an ordinary TV set can be used. simply run a jumper wire from
the "FREQ TIP" to the VHF antenna input and tune the 1254 per the following table:
Display
0.000.0
0.100.0
5.000.0
10.250.0
14.750.0
16.250.0
21.750.0
22.250.0
26.750.0
LO Output (MHz)
45.000
45.100
50.000
55.250
59.750
61.250
65.750
67.250
71.750
NOTES
Test signal: 1
st
IF (Phase 5.0)
6 meter ham band (50-54 MHz)
TV channel 2 video
TV channel 2 audio
TV channel 3 video
TV channel 3 audio
TV channel 4 video
TV channel 4 audio
1254 ± Assembly - 21