Der Präzisions - Amplitudenmodulator TH 2181/1 wurde 1975 in Zusammenhang mit Instrumenten des Flugfunkfeuers VOR und dem Instrumentenlandesystem ILS in Gebrauch genommen.
Eine vergrößerte Abbildung befindet sich hier.

English translation of German description:
Marconi Instruments has introduced the TK2181/1 precision Amplitude Modulator in 1975 primarily intended for use with VOR and ILS equipment.
When it is used with VOR the phase shift between the modulating signal and the envelope of the modulated carrier is claimed to be 0.1% at 30 Hz.
When it is used with ILS the difference in modulation depth is claimed to be less than 0.05% when each tone is modulated to 20% depth.
Please find an enlarged image here.

Marconi TK2181/1

Maße/ Dimensions : 430mm (B/W) x 55mm (H/H) x 460mm (T/D)
Gewicht/ Weight: 6,4 kg

Ab Stapel / As is:   113,05 INKLUSIV MWST / 95,00 NETTO (appr. US$ .-)

Ref. #: -2032768338 Marconi TK2181/1
© by Helmut Singer Elektronik Vertriebs GmbH