LD 587 551 Manual De Instrucciones página 7

Page 3/4
4.2 Loop dipole:
Characteristic wave
impedance:
Connection:
Dimensions:
4.3 Antenna rod:
Dimensions:
4.4 Receiver dipoles:
Lamp data:
Lamp socket:
Dimensions:
4.5 Mounting rods:
Mounting rod
for UHF generator
Mounting rod
for receiver dipole
Note on the lengths of antenna rod, receiver dipoles and loop
dipole:
The ideal elementary (or "Hertz") dipole has an overall length of
λ /2 and a diameter D = 0. For diameters D > 0, a contracting
factor becomes apparent for the overall length and the band-
width becomes greater. (Flatter antenna resonance curve).
5 Operation
5.1 Putting the UHF generator into operation:
4.
- Connect the loop dipole (2) or the Lecher line (from 587 56)
to antenna output (1e) .
- Connect the table-top power supply to power input (1a) , plug
the unit into a mains socket and switch it on.
200 Ω
4-mm plug pair for connecting
to antenna output or open end
of the Lecher line
14 cm × 7 mm dia.
32 cm × 7 mm dia.
3.8 V / 70 mA
E10
14 cm × 7 mm dia.
13 cm × 10 mm dia.
13.7 cm × 10 mm dia.
3.
1.
5.2 Using the receiver dipole with lamp:
1.
Additionally recommended:
2 Saddle bases
- Operate the UHF generator using the loop dipole.
- Mount the receiver dipole with lamp using the mounting rod
for receiver dipoles and align it parallel to the loop dipole so
that the lamp lights up brightly.
- Vary the distance, move the receiver dipole around the loop
dipole and lift it above the loop dipole, align the receiver di-
pole perpendicularly; observer the brightness of the lamp
each time.
Instruction sheet 587 551
3.
2.
300 11