MagicBox V1R2B, Assembly Manual

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Operational Checks
If an RF Signal Generator is available, connect it to the Antenna Out BNC connector J3. If no signal
generator is available, connect an antenna to J3. Using a BNC jumper, connect the antenna lead of a
receiver to the Receiver Out connector J2. Connect a key to the Key(er) connector J8. Turn on the
receiver. Apply power to the MagicBox. If using a signal generator, adjust the amplitude to 50 micro-
volts and tune the receiver to find this signal. If using an antenna, confirm that antenna noise is being
heard. Press the key and confirm that the signal into the receiver is greatly attenuated. Remove power
from the MagicBox.
[ ] Write down your results/observations_________________________________________________
_________________________________________________________________________________
Place a shorting shunt on the 2-pin header J11. This places the MagicBox in Non-QSK mode. Apply
power to the MagicBox. Press the key and confirm that the receiver returns to listening mode after an
approximate 1-second delay. Remove power from the MagicBox. Remove the shunt and place it over
one of the pins for safe keeping.
[ ] Write down your results/observations_________________________________________________
_________________________________________________________________________________
Continuing with the above setup, connect the audio output of the receiver to the Audio In jack J5. (Use
the wiring information on the “Connection Diagram” page for the receiver to MagicBox audio lead.)
Connect a speaker or headphones to the Speaker/Phones jack J6. Apply power to the MagicBox. Turn
on the receiver and confirm that receive audio is coming out of the speaker/headphones. Press the key
and confirm that the audio signal from the receiver is cut off and the MagicBox side tone is being
heard. The side tone level can be adjusted to a comfortable listening level with trimmer R32. Remove
power from the MagicBox.
[ ] Write down your results/observations_________________________________________________
_________________________________________________________________________________
Remove the signal generator or antenna from the Antenna Out BNC connector J3. Turn off the
receiver. Remove the receiver antenna connection. Connect a dummy load/watt meter to the Antenna
Out BNC J3 connector. Connect the RF output of the transmitter to the Transmit In BNC connector J4.
Connect the keying lead of the transmitter to the Transmit Key jack J9 of the MagicBox. Apply power
to the MagicBox. Turn on the transmitter. Press the key and confirm that transmitted RF is being
shown on the watt meter. Turn off the transmitter. Remove power from the MagicBox.
[ ] Write down your results/observations_________________________________________________
_________________________________________________________________________________
Continuing with the above setup, reconnect the receiver antenna to the Receiver Out BNC connector
J2. Turn on the receiver. Apply power to the MagicBox. Turn on the transmitter. Key the transmitter
and confirm that RF is being shown on the watt meter and that the side tone is being heard from the
speaker.
[ ] Write down your results/observations_________________________________________________
_________________________________________________________________________________
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