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 |
|---|---|---|
| WB5RVZ Home page | 1/21/2009 | Added search engine to main home page |
| Local Oscillator | 11/23/2008 | Revised current draw tests, added transceiver freq test.
Thanks to Alan G4GFQ (and Bob_Deep) for the suggestion. |
| Local Oscillator | 11/19/2008 | Corrected expected pk-pk value from ~5 to ~1.5 V p-p on scope test
Thanks to Steve 2E0ZEH for catching the discrepancy. |
| Power Supply | 8/19/2008 | Added note to pay no attention to the hardware mounting in the pictures,
which is the reverse of the
recommended mounting. The text is correct, the
pictures show the reverse of how the nylon spacers should be installed.
Thanks to Tom K9AC for catching the discrepancy. |
| all pages | 8/15/2008 | Added summary build steps section at beginning of page for the more experienced builder who needs just the schematic, recommended staging and sequencing, and recommended tests. |
| BPFs | 8/12/2008 |
Clarified that wire lengths on bifilar windinges are per secondary, such that the total
wire length required would be 2x the stated length.
Replaced resistance tests with continuity tests
.
Thanks to Walt AE8L for recommending this. |
| Multiple | 8/12/2008 |
Added current test with 100 ohm series resistor and tests of 5 and 3.3 V
power rails to ensure no shorts on those rails.
.
Thanks to Alan G4ZFQ for recommending this. |
| Mixer | 8/12/2008 |
Added reference to requirement to install ENRX ground and test loop
(link back to Power Supply Stage) after installing Mixer.
Thanks to Walt AE8L for surfacing this. |
| BPFs | 7/19/2008 | Added comments suggested by Pete N4ZR re winding 66 turn inductors and bifilar windings. |
| BPFs | 7/19/2008 | Added comments suggested by Pete N4ZR re winding 66 turn inductors and bifilar windings. |
| Multiple Stages | 6/23/2008 | Modified the current draw measurements to reflect the experience of builders of the kits where the version of the Si570 was the CMOS version. Adjusted expected draw downwards by ~14 mA (to reflect the lower current draw of that version). |
| BOM, BPFs | 6/23/2008 | Changed some of the recommended wire lengths for the inductors. The existing recommendations were a bit on the optimistic side, so they were "fudged" upwards by an inch or so. |
| All Stages | 6/6/2008 |
Changed structure to add "BuildIt" and "TestIt" icons
to critical steps for each stage, allowing user to skip past
the background info and go directly to the essential steps
of
building andtesting. |
| SW1 Settings, Home, Local Oscillator, Mixer | 6/3/2008 |
Updated SW1 Settings page to add mappings of the 16
center frequencies to the Rocky "Multi-Band" dropdown
list (entries in the ROCKY.INI file). Added SW1 Settings links to other pages' menus. |
| Mixer | 6/3/2008 |
Updated Mixer page to reflect completed status. Added RX test using Rocky software. |
| BPFs | 6/1/2008 |
Clarified language on inserting T100-#'s windings into
appropriate (annotated) holed in BPF Board. Thanks to Duncan G4ELJ for catching the error. |
| Op-Amps | 6/1/2008 | Added Tony's DMM-only test of Op-Amps for those with no scope. |
| Op-Amps | 5/30/2008 | Corrected omission of R23 and R24 as part of Stage 4. |
| Power Supply, Op-Amps, BOM | 5/30/2008 | Added picture of SMT Cap strips for clarification of the 2 different types of caps. |
| BPFs, BOM | 5/29/2008 | Revised to correct wire lengths needed for inductors. Added pictures of completed BPF board (80/40m). Added interim tests of inductors on BPF board. |
| Local Oscillator | 5/29/2008 | Revised to correct instructions for mounting J1/J2. As originally built, these were header pins rather than sockets. Revision shows J1 and J2 are sockets. |
| BOM, various | 5/28/2008 | Revised to prevent the possibility of the builder's
confusing the two types of SMT caps (as did the author). The
kit calls for 5 x 0.1 µF and 10 x 0.01 µF SMT caps.
Updated BOM, Home page, and individual Stage pages. Republished affected PDF files. |
| Dividers | 5/28/2008 | Updated to reflect completion and tests. Corrected erroneous S0 and S1 test points to reflect true testpoints. Added voltage divider test. |
| Local Oscillator | 5/28/2008 | Updated to correct p-p output voltages of completed stage Also added photo of completed board topside. (exact measurements TBD) |
| Local Oscillator | 5/27/2008 | Updated to reflect test results of completed stage. |
| Mixer, BOM | 5/23/2008 | Updated references to TI's SN74CBT3253 dual 1-of-4 multiplexer/demultiplexer to reflect it should be replaced by Fairchild's The Fairchild's FST3253 dual 4:1 high-speed multiplexer/demultiplexer bus switch. |
| Local Oscillator | 5/20/2008 | Currently Building.Debugging Stage 1.
Still debugging.
Corrected (originally erroneous) instructions so that SW1 is correctly mounted. Moved J1 and J2 mounting from BPF stage to LO stage (just before C10). Added some tests on U3. Paused efforts to get and remount new SW1 and C10. |
| Power Supply | 5/20/2008 | Completed build of Stage 1. Added completed pictures and test results to Stage I - Power Supply web page. |
| Local Oscillator | 5/20/2008 | Changed instructions to claify (counter-intuitive) orientation of U4. Working with Tony on additional troubleshooting/tests. |
| Local Oscillator | 5/20/2008 | Added pk-pk test measurement value to LO Output Test. |
| BPFs | 5/19/2008 | Added instructions on sawing long BPF board strip into four boards. |
| BPFs, BOM | 5/19/2008 | Corrected erroneous value for C101-2 from 600pF to 680pF. |
| Power Supply, Mixer | 5/18/2008 | Moved the ENRX wire (ground point) installation from the mixer stage to the power supply stage. |
| PDFs | 5/17/2008 | Reprinted Stage PDF files to reflect changes below |
| Home, BPF | 5/17/2008 | Added passband waveforms from David WB4ONA's LT Spice simulation of the
BPF designs to the website, with links from the homepage and from the BPF page.
New page added was BPF_BandPassSimulations. Thanks, David |
| BPFs | 5/17/2008 | Added David WB4ONA's resistance measurements to testing for
BPF inductors. Also added David's experience with the 66 turn coil and inability to wind as a single layer, and the effect that had on the specified inductance (needed 3 additional turns to get there). Thanks, David |
| Local Oscillator, Comments Page | 5/17/2008 | Corrected typo ("twice center freq" should be "4x center freq" in LO Output).
Fixed return knk from comments page Thanks to Dave WW2R. |
| various stages | 5/16/2008 | Worked on the various topside images to standardize their look and feel (highlight stage-relevant components and dim out the rest). |
| Mixer, LO, OpAmps | 5/16/2008 | Making huge assumptions from Tony's message #21552 regarding his build of the kit and the final step (Mixer stage) current draw of 109 mA, I made extrapolations (SWAGS) back to the LO, and OpAmps pages of the expected current draws In those stages. |
| Home | 5/15/2008 | Provided link to the PDF versions of the pages for each of the 6 stages. The link directs the user to a new page with links for downloading the PDFs for printing and using/checking off during actual construction. This is in response to a suggestion by Joe VE1BWV. |
| Home | 5/15/2008 | Added Revisions Link and (this) page. Made minor changes to description of LO circuit, per suggestions from Tom Hoflich. |