AUDIO LTD DX2020 RF Set + Lavalier
AUDIO LTD DX2020 RF Set + Lavalier
In a nutshell

Audio Ltd DX2020 radio set. Introduced about fifteen years ago, Audio Ltd wireless systems have largely contributed to the wide development of radio mike use. Transmitter TX2020, powerful and very autonomous, offers a choice of 32 frequencies ([F1, F2]x16); it accepts line or mike input, and its LF circuit is remarkable with low-cut filter and discrete compression/expansion system. DX2020 is a miniature multifrequency receiver (32), providing "true diversity" reliability, a subcarrier-controlled squelch and a LED indicator for transmitter battery level. Audio Ltd. systems have several other advantages: transmitter and receiver easy switching on and off, sturdy connectors easy to wire, a range of clever accessories developed by VDB such as L48 or Spider Box. So it's easy to understand why these systems have replaced their competitors on production shoots, documentaries or ENG.

TX2020/DX2020 are multichannel and miniature. Transmitter accepts any type of lavalier, as well as condenser mikes using VDB L-48 accessory, or dynamic mikes with VDB L-dyn adapter. Thanks to its small size, receiver DX2020 is ideal for video camera connection; it is then camera powered via VDB OL-HRSA cable.

This product is commonly named:

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Technical specifications
Transmitter

TX2020 émetteur de poche UHF multicanal (F1 & F2 x 16), porteuse de 470 à 850 MHz.
Coupe bas (-3 dB / 70 Hz), limiteur à l'émission (DEL) et système de compression/expansion (compander) non débrayables.
8 positions de gain micro (de -36 à -6 dBm), 2 positions ligne 600 Ohms (+10 dBm max.). THD < 0.3% pour entrée mic. à -6 dBm. BP : 50-18 kHz, +-1 dB. Puissance HF jusqu'à 50 mW.

Power & Dimensions

Conn. audio Lemo 6 pts à détrompeur x 1, conn. HF SMA x 1.
Alim interne 1 pile 6LR61 9 V. alkaline (ou lithium) ou ext. 8-11 V.DC (par le conn. Lemo) ; autonomie de 4 à 5 h. (de 10 à 12 h.) suivant accessoires.
Dimensions 8.7 cm x 6 cm x 2.1 cm, masse 0.125 kg sans piles.

Receiver

DX2020 récépteur UHF « true diversity » de poche, multicanal (F1& F2 x 16), porteuse de 470 à 850 MHz.
1 sortie symétrique micro niveau fixe (-30 dBm), 1 sortie asymétrique casque niveau ajustable.
BP : 50-15 kHz ; THD<0.3% (-6 dBm entrée micro émetteur).
Squelch automatique par fréquence pilote, indication de batterie faible émetteur et récepteur, d'absence de porteuse, du récepteur actif (diversity).

Power & Dimensions

Conn. audio Lemo 6 pts à détrompeur x 1 ; conn. HF SMA x 2.
Alim interne 3 piles lithium CR123 3 V. ou ext. 9-14 V.DC (par le conn. Lemo) ; autonomie env. 8 h. selon sorties.
Dimensions 15 cm x 6.5 cm x 2 cm, masse 0.31 kg avec piles.

Options

Récepteurs : OL-2000, sortie micro sym. ; OL-XLR4M+, bretelle sortie micro sym. pour alim. ext. 12 V.DC sur XLR4M ; OL-HRSA, bretelle sortie sym. micro pour alim. ext. par Betacam ; OL-BALHRS, bretelle sortie ligne sym. XLR3M pour alim par Betacam ; OL-EAR, sortie casque jack stéréo F 6.35 mm.

Manufacturer's documents