PTR50
PTR50 L-band Tracking Receiver
Peak Communications was formed in 1995 and began by manufacturing the P701 L band frequency downconverter. The addition of the Upconverter module in 1996 enabled Peak Communications to produce the P702 L band upconverter and then also the P700 L band Up/Down converter in a single 1RU. Over time the product range has increased to include 19" rack mount and remote mount block up and down converters covering the main satellite operating frequencies including X, C and Ku Bands. The integration of these block converters into a P700 converter facilitated full frequency conversion from IF to SHF via L band. In 2003 the P7000 range of converters was launched to supersed the P700 range.
The PTR50 is a next generation of tracking receivers designed by Peak Communications. The PTR50 has been designed specifically to track and measure CW beacons from commercial satellites
Other beacon receivers in the PTR range are available to track other types of beacon and for use in different frequency ranges. These receivers are designed to be used for telemetry and control typically in earth stations using large antennae.
The receiver is designed as a versatile and easy-to-use unit and using the Peak Communications standard graphic display can display a digital representation of the actual beacon spectrum with 3 Resolution bandwidth settings.
The frequency of the centre of the tracking band frequency of the PTR50 can be user set very accurately using the DDS system with a 1kHz step size. The unit uses a 2kHz PLL to perform signal acquisition and level measurement through coherent detection. A digital search device sweeps the frequency to locate a signal in the acquisition band and if a signal is detected the frequency is locked immediately to this beacon. A secondary search is then initiated to look for a more intense signal within the search band. If one is detected then the locked tracking frequency is set to this value. The process repeats until the largest
signal is found in the search band and the anti-sideband device is then disabled.
A log amplifier is used to provide an output voltage representing the input power in logarithmic scale, in effect making the input power to output voltage log-conformal. The sensitivity of the logarithmic output is user selectable from the front keypad menu.
Peak Features
Graphical display of beacon.
Fast Signal locking.
Sophisticated digital sideband rejection system.
Logarithmic output range, user settable from control system.
If the information
you require is not listed, please contact sales@peakcomm.co.uk
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