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brain freeze
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David H. Martin
Hi Steve,
Mine has a smaller hole there. If yours doesn't have one, you should just solder the ground wire to the crystal lead that goes to ground. It's easy to tell which one that is by looking at the bottom of the board. good luck, Dave W5DHM --- steve <swells244@...> wrote: guys Im finally geting time to start my kit AND Ive __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 |
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steve
David H. Martin wrote:
Hi Steve,Thanks Dave its been a long day I didnt even think of doing that .Must be suffering from CRS disease Hi. Steve |
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Stan Rife
开云体育??? Should be a hole there...was on my board. It is a
small hole though. Is there enough pad there to tack the ground wire to? You
might remove the Xtal,?bend a small L on the end of a scrap lead, then tack
that to the pad and reinstall the Xtal. Then you can solder it to the body of
the Xtal.
??? That feasible guys???
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Stan Rife
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KY1K
Steve, there is nothing sacred about the crystal case being grounded. There is no real need to solder it to ground.
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It's there for mechanical stability, since the crystal isn't laying flat on the board like it was made to do. If you leave it hanging in mid air, it will be somewhat more unstable, mostly just more susceptible to vibration being able to modulate the output frequency of the unit (microphonic). It looks like you can attach a piece of stiff wire to the xtal, and wrap it around the edge of the board to the underside and solder it to the ground plane there. I left mine hanging in mid air on long lead with nothing securing it because I intend to remove it later to facilitate the DDS install. It runs just fine, even though it's not quite technically correct. It also looks like you can drill the hole yourself, because it goes to teh ground plane on the backside of the board, there is no problem if the hole placement isn't as precise as the intended hole position was. Regards, Art At 09:15 PM 10/10/2005, you wrote:
Hi Steve, |
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