Please also visit:

Overcoming signal loss

Overcoming signal loss
ALP690

Overcoming signal loss

The ALP690 antenna is powered by a DC bias inserted on the coaxial cable connected to the 50Ω BNC jack

The ALP690 from Lectrosonics has been developed for use with wireless microphone receivers or base station transmitters in location and studio production. It is a UHF LPDA (log periodic dipole array) antenna with a built-in RF amplifier and delivers +4dBd of passive gain in a directional pattern to extend the operating range. An RF amplifier can be used to supply gain for overcoming signal loss in long coaxial cable runs.

The ALP690 antenna is powered by a DC bias inserted on the coaxial cable connected to the 50Ω BNC jack. A Venue Series receiver, an active multicoupler or an inline BIAS-T can supply the power. When no bias is applied, the ALP690 automatically switches via relays to function as a passive antenna. RF amplifier gain, filter bandwidth and display brightness are adjusted with a membrane switch keypad and LED display on the control panel. Depending on the type and length of the coax cable, RF gain is adjustable in 1dB steps from –6dB to +12dB to match the RF. Vertical orientation provides a wide horizontal coverage pattern.

DCHT
DCHT

In other news, the manufacturer has also unveiled the DCHT portable digital stereo transmitter for use in film and TV production as both a wireless audio link from a bag or cart system to cameras, or as a portable IFB transmitter paired with the Duet digital wireless M2R receiver packs. The DCHT accepts two channels of mic or line level analogue signals or an AES digital signal from a mixer, and transmits to the receiver or receivers in a pure digital format.

The DCHT can tune across the available UHF TV band from 470.100–607.950MHz (470.100–614.375MHz for the export version) in 100kHz or 25kHz steps, offering more than 6,000 frequencies. The RF output can be set to 10mW, 25mW or 50mW to provide a flexible operating range. Input connections and settings are included for lavalier microphones, dynamic microphones and line level inputs. Input gain is adjustable over a 51dB range in 1dB steps to maximise the dynamic range and signal-to-noise ratio.



You may also like:

Click to play video

Lectrosonics D² Wireless System

20 Jun 2019

D Squared = four channel evolution

12 Jun 2019

Please also visit:

Information on cookies

Cookies are short reports that are sent and stored on the hard drive of the user's computer through your browser when it connects to a web. Cookies can be used to collect and store user data while connected to be able to provide you the requested services. Often cookies are getting deleted when the user leaves a site or logs out of it.

There are several types of cookies:

  • Technical cookies that facilitate user navigation and use of the various options or services offered by the web, such asas identifying a session, allowing access to certain areas, facilitating orders, purchases, filling out forms, registration, security, facilitating functionalities (videos, social networks, etc..).
  • Customization cookies that allow users to access services according to their preferences (language, browser, configuration, etc..).
  • Analytical cookies which allow anonymous analysis of the behavior of web users, measuring user activity and development of navigation profiles in order to improve websites and the experience of future visitors.

When you keep using our website, in compliance with Article 22 of Law 34/2002 of the Information Society Services, in the analytical cookies treatment, we have requested your consent to their use.
We use cookies to improve our services. For more details please refer to our Terms of Use and/or our Privacy Policy.

Please note that you can enable or disable and delete cookies in your web browser.