LD 587 55 Manual Del Usuario página 8

Instruction sheet 587 55
5.3 Using the receiver dipole with diode:
Additionally recommended:
1 Multimeter LD analog 10
2 Saddle bases
- Operate the UHF transmitter in CW mode using the loop
dipole.
- Mount the receiver dipole with diode using the mounting rod
for receiver dipoles.
- Connect the multimeter (measuring range 3 V DC).
- Align the receiver dipole parallel to the loop dipole so that
the deflection of the multimeter is approx. 2 V.
- Vary the distance, move the receiver dipole around the loop
dipole and lift it above the loop dipole, align the receiver di-
pole perpendicularly; observe the deflection of the multime-
ter each time.
- Test the effect of the horizontally arranged antenna rod (3)
on the received signal when placed in front of and behind
the receiver dipole.
LD Didactic GmbH . Leyboldstrasse 1 . D-50354 Huerth / Germany . Phone (02233) 604-0 . Fax (02233) 604-222 . e-mail: [email protected]
by LD Didactic GmbH
531 110
300 11
Additionally recommended:
1 Function generator P
1 Screened cable BNC / 4mm
1 AC/DC amplifier 30 W
1 Broad-band speaker
2 Saddle bases
- Operate the UHF transmitter in AM mode using the loop
dipole.
- Mount the receiver dipole with diode using the mounting rod
for receiver dipoles, connect the AC/DC amplifier and switch
on AC mode.
- Connect the output of the AC/DC amplifier to the speaker,
making sure to twist the connecting leads together.
- Connect the output of the function generator P to the modu-
lation input of the UHF transmitter.
- Set up the receiver dipole approx. 2 m away from the UHF
transmitter and align it parallel to the loop dipole.
- Switch the function generator to sine mode and supply a
variable-frequency signal with a signal level of approx. 1 V
to the UHF transmitter. Listen to the received signal.
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522 56
575 24
522 61
587 08
300 11
Printed in the Federal Republic of Germany
Technical alterations reserved
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