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dual freq mod
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John Hall
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Thanks, John. Very cool. I'll bet something similar could be done with a rotary switch and several xtals (within the same portion of a band, at least).
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73,
Todd ------------------------------------------------------------------------------------ K7TFC / Medford, Oregon, USA / CN82ni / UTC-8 ------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design
On Sun, Mar 10, 2013 at 10:04 AM, John Hall <ka0kuy@...> wrote:
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John Lonigro
The dual frequency mod is cool, but WON'T work with the Pigrig,
unless you want to switch in/out 4 crystals at a time.
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72, John AA0VE On 03/10/2013 06:08 PM, Todd F. Carney
/ K7TFC wrote:
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Folks,
The dual crystal switch was used in a DC40 which uses only one frequency determining crystal. I did another one that switched 5 crystals and included a variable as a simple VXO. Easy to do with only one crystal to switch. A little more difficult with two crystals as in the Rock-Mites. And not practical in rigs like the pig rig with 3 filter crystals on about the same frequency as TX/RX. Chuck Carpenter, W5USJ EM22cv, Rains Co. TX
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