PLTX Digital Power Amplifier User Manual
Introduction
Issue No: 01
Page: 3
Ref: PLTX-ASUM-7xxx
Copyright © 2017 IMT Ltd, trading as Vislink
Typically, the PLTX Power Amplifier is used to boost the power level from a Vislink
wireless camera transmitter (L1700
1
, ClipOn4 and HCAM) in order to achieve longer link
distances and/or facilitate the use of higher modulation rates due to the increased
threshold level and link budget margins.
Typical applications include terrestrial and marine video, motorcycle uplinks for long
distance marathon events and impromptu mobile point-to-point video link systems.
The PLTX range operates over frequencies between 1.3 to 7GHz, in bands, with a typical
factory-set bandwidth of 400MHz and a nominal output power of 5W, 10W and 20W. The
amplifiers feature GaN device technology and RF Pre-Distortion correction techniques
2
providing excellent linearity suitable for COFDM signals.
The unit can derive power using portable battery packs ranging from 12VDC to 28VDC
3
. A
built in voltmeter is included to allow accurate monitoring of battery condition.
The RF Power output level is AGC controlled. The power output can be reduced by 10dB
using the rotary control knob. Using this function increases battery life and reduces the
potential for de-sensitization of nearby receiver infrastructure.
Power Level Control
5W PA
10W PA
20W PA
Max Setting
+37dBm (5W)
+40dBm (10W)
+43dBm (20W)
Min Setting
+27dBm (0.5W)
+30dBm (1W)
+33dBm (2W)
Table 2-1
Power Level Control Settings
1
The L1700 requires an optional IDX adaptor kit, part number: 9017119.
2
Frequency ranges of 3.7GHz or lower.
3
20W options operate between 20 to 30VDC.
