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UPC-590L-M Up-Converter Installation and Operation
1. Description
The model UPC-590L-M consists of two identical heterodyne converters with 5 to 85 MHz RF input and 205 to
285 MHz IF output. It is designed for use with the Long Wavelength Array (LWA) Antenna and includes 15 dB of
attenuation in each IF output path. The UPC-590L-M has the same dimensions and form factor as the LWA
Power Coupler and Callisto instruments. Because the LWA Antenna has built-in front-end electronics with low
noise figure and high gain, the UPC-590L-M has no RF input preamplification.
The UPC-590L-M panel layouts are shown below. The front panel (left) has connectors for power (2.1 x 5.5 mm
coaxial jack, center positive), a power switch and power indicator and two output connectors for the IF to the
receivers (type N-female). The rear panel (right) has two input connectors for the RF from the LWA Power
Coupler (type N-female).
The basic configuration is shown below. The Converter is inserted between the LWA Power Coupler and the
Callistos instrument or other receivers.
See last page for copyright and document information, File: Reeve_UPC590_Instructions.docx, Page 1
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Table of Contents
Related Manuals for Reeve UPC-590L-M
Summary of Contents for Reeve UPC-590L-M
- Page 1 1. Description The model UPC-590L-M consists of two identical heterodyne converters with 5 to 85 MHz RF input and 205 to 285 MHz IF output. It is designed for use with the Long Wavelength Array (LWA) Antenna and includes 15 dB of attenuation in each IF output path.
- Page 2 Signal levels The LWA Antenna is an active antenna. The Front-End Electronics (FEE) gain is 35 dB. The UPC-590L-M has a 15 dB attenuator in the IF output path and its mixer has a conversion loss of approximately 6 dB. Internal filters, coaxial cables and connectors introduce approximately 1 dB of additional loss, giving a total loss of 22 dB through the converter.
- Page 3 Before attempting to setup the Converter, refer to the Callisto Software Setup Guide for detailed instructions on using the Callisto software and the Frequency Genie software tool. Setup the UPC-590L-M Converter according to the steps below, while referring to the screenshots immediately following: Connect all equipment;...
- Page 4 UPC-590L-M Up-Converter Installation and Operation 10. Change the focus code parameter [focuscode] in callisto.cfg. The recommended code is 62 for right- hand circular polarization (RHCP) and 63 for left-hand circular polarization (LHCP). When the LWA Antenna is configured for linear polarizations, the recommended focus codes are 58 and 59. The focus code number is not critical but must be different for each polarization;...
- Page 5 UPC-590L-M Up-Converter Installation and Operation Part of an example frequency list generated by Frequency Genie with 200 channels per sweep, 4 sweeps per second, frequency range 5 to 85 MHz and local oscillator of 200 MHz. Note: The start frequency is repeated five times to allow the tuner synthesizer to stabilize when starting a new sweep.
- Page 6 4. UPC-590L-M Up-Converter Description Block diagram The UPC-590L-M up-converter consists of two identical assemblies that share a common local oscillator. The following describes one of the assemblies. The RF input is first applied to a 5 to 85 MHz bandpass filter and then to the double-balanced mixer.
- Page 7 UPC-590L-M Up-Converter Installation and Operation • Weight: 3.8 kg 5. Operation and Maintenance Operation: All RF connections should be made to the Converter and Receiver before the power supply is connected and turned on. Power is applied by toggling the power switch on the front panel to the UP position. Power is removed by toggling the power switch to the DOWN position.
- Page 8 UPC-590L-M Up-Converter Installation and Operation Document information Author: Whitham D. Reeve Copyright: © 2022 W. Reeve Revision: 0.0 (Original draft started, 19 Dec 2020) 0.1 (Updated block diagrams, 19 Sep 2021) 0.2 (Highlighted images to be replaced, 21 Sep 2021) 0.3 (Updated IF frequencies to match -M oscillator, 27 Jan 2022)
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