David F. took this picture after assembling the next set of fan kits. Splicing 28 gauge wire to join the connector with the fan wires is not easy.
Tuesday, February 21, 2017
Fan art
David F. took this picture after assembling the next set of fan kits. Splicing 28 gauge wire to join the connector with the fan wires is not easy.
Monday, February 20, 2017
SARA Western Regional Conference discounted kits
Are you going to the SARA Western Regional Conference in March? Members of the RASDR4 team will bring several enclosure kits and will be selling them at a discounted price (the normally included price of shipping). To order one for delivery at the conference, click on the Order kits link on the right side of this page and click the link under BUY IT NOW AND PICK IT UP AT A SARA MEETING.
Saturday, January 7, 2017
Sunday, January 1, 2017
Orders now live
Please see the ordering information on the right side of this page or click this order form. Design features are in the previous posting.
The RASDR4 Enclosure Kit is based on our early delivery LimeSDR v1.2 board. Lime is shipping v1.4 and this will be the focus of our RASDR4 user documentation. Progress has been documented in the last few issues of the SARA Journal.
Users should monitor board temperature during operation. The team chose the above features to support our plans for radio astronomy measurements in a variety of environments.
A basic Enclosure Kit is available at a cost of $75 (postage included). Users need to supply their own LimeSDR with a USB Type A extension cable and an optional DC power cable/source. SMA connector cables from selected ports (typically 4 RF, 1 clock and 1 user option) to the board connection points are included, but external antenna and LNA are not included. The D-sub connector is for planned expansion.
The team is working on a GPIO subkit that will include ESD and over-voltage protection. A challenge to testing is that the Altera FPGA firmware must be modified to test operation. We could use help with FPGA programming, general software development, documentation and testing. If you’d like to be a member of the team or help with our observing projects/documentation, contact David Fields (fieldsde@aol.com). For questions about orders, software options, or LimeSDR questions, contact Paul Oxley (oxleys@att.net). To discuss our software and website, contact Tony Bigbee (tony.bigbee@gmail.com). For project management information, contact Wayne McCain (Wayne.McCain@athens.edu). To discuss interactions with the professional community and advanced projects, contact Stan Kurtz (skurtz@mailaps.org).
RASDR4 and all of its supporting hardware/software are considered an experimental, development-level kit product. No warranty is expressed or implied by RASDR, LLC, beyond shipping shortages or component defects. The LimeSDR board and components are not warrantied by RASDR, LLC.
The RASDR4 Enclosure Kit is based on our early delivery LimeSDR v1.2 board. Lime is shipping v1.4 and this will be the focus of our RASDR4 user documentation. Progress has been documented in the last few issues of the SARA Journal.
Users should monitor board temperature during operation. The team chose the above features to support our plans for radio astronomy measurements in a variety of environments.
A basic Enclosure Kit is available at a cost of $75 (postage included). Users need to supply their own LimeSDR with a USB Type A extension cable and an optional DC power cable/source. SMA connector cables from selected ports (typically 4 RF, 1 clock and 1 user option) to the board connection points are included, but external antenna and LNA are not included. The D-sub connector is for planned expansion.
The team is working on a GPIO subkit that will include ESD and over-voltage protection. A challenge to testing is that the Altera FPGA firmware must be modified to test operation. We could use help with FPGA programming, general software development, documentation and testing. If you’d like to be a member of the team or help with our observing projects/documentation, contact David Fields (fieldsde@aol.com). For questions about orders, software options, or LimeSDR questions, contact Paul Oxley (oxleys@att.net). To discuss our software and website, contact Tony Bigbee (tony.bigbee@gmail.com). For project management information, contact Wayne McCain (Wayne.McCain@athens.edu). To discuss interactions with the professional community and advanced projects, contact Stan Kurtz (skurtz@mailaps.org).
RASDR4 and all of its supporting hardware/software are considered an experimental, development-level kit product. No warranty is expressed or implied by RASDR, LLC, beyond shipping shortages or component defects. The LimeSDR board and components are not warrantied by RASDR, LLC.
Wednesday, December 28, 2016
Assembled prototype pictures, assembly instructions (with lots of pictures), and ordering information on the right side of this page.
Enclosure Kit details:
- Designed for Radio Astronomy and tested with a preproduction LimeSDR board;
- All parts supplied with kit: no soldering, cutting, filing or special assembly required;
- Sturdy .06” / 1.5 mm custom stainless steel panels with laser cut openings and etched markings;
- Six SMA connectors with coaxial cable leads and u.FL connectors, covering (2) RX, (2) TX, (1) Optional IO, and (1) Reference Frequency Input;
- Extruded black anodized aluminum split shell case with post-aodization reamed screw holes;
- Passive cooling design resulting in air flow through RF and control panel ventilation holes, adequate for single-channel Receive Operations at typical ambient room temperature;
- Active cooling (using optional fan) to mitigate the effect of higher ambient temperatures or simultaneous operation of multiple TX/RX functions;
- GPIO port: D-SUB 15 position connector can be integrated with a forthcoming GPIO Kit;
- External visibility of all activity/status LED sets;
- Design attention to limit corrosion in selection of materials and contact points; and
- Design attention to shielding and ground loop prevention.
Tuesday, December 13, 2016
Subscribe to:
Posts (Atom)