Ensemble RXTX Revisions
Revisions to the Pages/Documentation
This page provides a log of activities in concurrent building, debugging, and documenting the kit, identifying changed web pages and describing the changes/status.
| Page | Revised Date | What Changed |
|---|---|---|
| PA Stage | 11/30/2011 | Clarified Output RF test to indicate DC output measurement is possible because Norcal dummy has detector that rectifies output. |
| TX Mixer | 10/30/2011 | Clarified voltage test results for pins 2 and 14 on the mixer chip. |
| RF Mixer | 10/23/2011 | Corrected seuence of steps in summary build instructions |
| RF I/O and Switching | 10/23/2011 | Added trouble shooting schematic from Bonb, G8VOI, to testing section. |
| Power Supply | 10/22/2011 | Re,oved reference to QSD/EN (accidentally out/pasted from Ensemble RX |
| Bill of Materials | 5/17/2011 | Added caveat about matching BS170s and provided link to Alan, G4ZFQ's design and discussion of a simple matching test circuit. |
| Power Supply | 4/17/2011 | Corrected wattage on R52 (from 1/4W 5% to 1/6W 5% - 68 ohms) to reflect what Tony is now shipping. |
| OpAmps | 4/17/2011 | Corrected spreadsheet for calculating expected output from bridging feedback resistors in functional test. Thanks to Steve K2DKT for catchning this. |
| All - PDFs | 3/22/2011 | Made available a zip file of pdf renditions of the web pages for this project. Includes renditions of the three "official" schematics from Tony Parks. |
| Power Supply | 3/21/2011 | Corrected wattage on R52 (from 1/6W 5% to 1/4W 5% - 68 ohms |
| Dividers | 1/18/2011 | Corrected schematic snippet to reflect latest schematic. TX to Rich for catching the error. |
| TX Opamps and Externall Connections | 12/16/2010 | Posted notice of potential for having to reverse RX and TX I/Q leads/jumpers, depending upon combination of PC, soundcard, program, etc. |
| PA | 12/15/2010 | Updated board top graphic to reflect changes made (and missed) in 4/28/2010 version of PCB design. Tx to JOHN KC9OJV for catching the omission. |
| RF I/O and RX Mixer | 12/5/2010 | Corrected erroneous omission of R53 and R54 from stage 5, where part of the content was in stage 6 and part in stage 5. Thanks to Bob KE7JL for catching the error. Now R53 abnd R54 are in the correct stage. |
| Local Oscillator | 12/1/2010 | Removed test for 12V at Pin 4 of U4 (optoisolator). The required voltage does not appear until after the RF I/O and Switching stage. Thanks to Bob - KE7JL for catching this omission. |
| USB Power Supply | 11/30/2010 | Provided caveat concerning trace cut on the top of the board due to bad lots of Si570 parts. |
| Power Supply | 10/7/2010 | Changed R52 from 68.1 1% 1/4W to 68 ohm 5% 1/6W |
| Driver/PA | 9/14/2010 | Made C22 band-specific (omit for all but 30/20/17 and 15/12/10). TX Tom KE9LM |
| External Connections | 9/13/2010 | Updated to add the 40m LPF to the existing 80m and 30m LPFs' documentation. Clarified the applicability of the various LPF choices. |
| Multiple | 7/12/2010 | Added 40/30/20m option; changed windings on T3 for 15m from 6/3 (bi) to 5/3(bi) |
| Multiple | 6/26/2010 | |
| Local Oscillator | 6/22/2010 | Changed "trifilar" to "bifilar" in narrative text describing winding of T1 (tx to Malcom, G4IHZ for catching the error) |
| External Connections | 6/20/2010 | Added Components to BOM for external LPF (components are provided in the kit, should the builder wish to build the LPF |
| Multiple | 6/13/2010 | Implemented changes in 6/10/2010 schematics |
| All | 5/16/2010 | Update to 5/14 schematic and 4/28 pcb versions. Brings the kit more into line with the RX kit; deals with noise issues; (optionally) isolates antenna from ground |
| All | 5/2/2010 | Completed Build |
| Multiple | 5/2/2010 | Added functional test to tx opamps stage. Added some additional voltage tests to TX Mixers. |
| TX OpAmps | 4/27/2010 | Completed Stage and added tests and graphics. |
| Driver/PA | 4/24/2010 | Corrected values for C66, 67, and 68 from 0.1 to 0.01 uF SMT Tx to Bill K0AWU for catching this. |
| , RX Opamps | 4/24/2010 | Completed build - recovered from big short on 12V rail |
| RF I/O Switching | 4/23/2010 | Modifications to reflect Tony's C27 rerouting in Reflector Message #43411 . Will require new production boards. |
| Power Supply Stage | 4/20/2010 | Completed Build (new board) |
| RX Mixer | 4/20/2010 | Added R63 (originally missing from notes). TX to Mike WA8BXN for catching this ommision! |
| USB Power Supply | 4/20/2010 | Completed build of USB PS. |
| USB Power Supply | 4/18/2010 | Fixed bottom side photo; had wrong location for C54. Tx to beta builder, Mike, WA8BXN. |
| Multiple | 4/5/2010 | Added C76 to LO and updated various graphics and BOMs to reflect 4/4/2010 production board. |
| RF and TX Mixer | 4/4/2010 | Moved Q3 and associated pullup resistors to RF I/O Control Stage Tx to Bob Reeves G8VOI for catching this omission. |
| PA/Driver | 4/1/2010 | Changed C22 from band-specific to 220pF all bands Changed turns on T4 from4/5 to 3/5 |
| RF I/O and Control | 4/1/2010 | Changed turns on L2 and L3 for 30/20/17m option from 14T to 13T Changed schematic to reflect move of C27 Changed test graphics and board top and bottom pictures |
| Power Supply | 4/1/2010 | Minor layout changes to board to reflect 4/1/2010 change |
| External Connections | 4/1/2010 | Added schematic and note concerning need for external LPF for 80m or 30m operation. |
| Home | 4/1/2010 | Added caveat that "completed" pictures were based on 2/26 layout. |
| Dividers | 3/31/2010 | Completed Build of Dividers Stage |
| Local Oscillator and MicroController | 3/30/2010 | Completed build of LO stage |
| Power Supply | 3/23/2010 | Completed build of Power Supply Stage |
| All | 3/17/2010 | Updated Schematics, etc. to 3/16/2010 version |
| All | 2/26/2010 | Initial Load of Beta Docs |