The Diversity Fin? Antenna is a multi purpose antenna from RF Venue. It is designed to be used with wireless microphone systems and other UHF receivers incorporating diversity reception, and comprises orthogonal directional LPDA (log periodic dipole array) and bidirectional dipole elements in order to eliminate multipath fade. One element captures vertically polarized waves, and the other horizontally polarized waves achieving optimal polarization diversity reception and improving signal constancy in indoor and reflective environments. To use, just connect both the A and B outputs to any antenna distributor or wireless microphone receiver and point toward the stage. The Diversity Fin has found widespread adoption across multiple pro audio segments for its performance, convenience, space, and cost benefits. From high profile live sound events, to film and TV productions, to routine installations in schools and churches, the Diversity Fin is the ideal all purpose external antenna for diversity microphone systems of any brand. Designed for temporary installation or tour sound use, the DFIN includes a padded protective cover and a threaded mounting block that attaches to mic and lighting stands (mounts to ¼"-20, ?"-16 or ?"-27 threads)

Features
Designed to be used with wireless microphone systems and other UHF receivers incorporating diversity reception
Incorporates both directional LPDA and bidirectional dipole elements
Captures both horizontal and vertically polarized waves in a single unit
Improves signal consistency in indoor and reflective environments
Single Diversity Fin replaces two traditional LPDA antennas
Includes a padded protective cover and a threaded mounting block that attaches to mic and lighting stands (mounts to ¼"-20, ?"-16 or ?"-27 threads)

Specifications

Operating frequency: 470 to 698 MHz

Bandwidth: 228 MHz

Average return loss: -9.4 dB

Impedance: 50 ohms

Beam width: LPDA: 140° azimuth Dipole: 100° azimuth

F/B ratio: LPDA: -8 dB Dipole: -5 dB

F/S ratio: LPDA: -5 dB Dipole: -13 dB

Gain: LPDA: 5 dB Dipole: 1.8 dB

Dimensions: 300 mm (11.8") W x 370 mm (14.6") H

Weight: 454 g (16 oz)

Mount threads: ¼"-20, ?"-16 or ?"-27

Operating temperature range: -23°C to +54°C (-9°F to +129°F)

Connector: Two BNC female

Accessories included: Padded protective cover; threaded mounting block (¼"-20, ?"-16 or ?"-27 threads)