Differences

This shows you the differences between two versions of the page.

Link to this comparison view

564vco [2016/12/14 03:46]
n1eu created
564vco [2016/12/14 03:53] (current)
n1eu
Line 31: Line 31:
 1) Don’t adjust anything unless you need to. I tried to pull the VCXO to get it closer to the specified 5.00000 MHz and ended up with a condition in which the VCXO would tune almost the right amount but the wrong direction, giving an effect a lot like one would see if a bit were stuck on the BCD encoder only worse - kind of like a hundred whistles blowing by you and you’re hearing the Doppler shift of each one as it passed by when you tuned across a carrier. 1) Don’t adjust anything unless you need to. I tried to pull the VCXO to get it closer to the specified 5.00000 MHz and ended up with a condition in which the VCXO would tune almost the right amount but the wrong direction, giving an effect a lot like one would see if a bit were stuck on the BCD encoder only worse - kind of like a hundred whistles blowing by you and you’re hearing the Doppler shift of each one as it passed by when you tuned across a carrier.
  
-2) Finding a process for the Omni 5, using Barry’s reference, ​I was able to get this back to working, but only after I reset the coil L6 back to where it was, and then I painstakingly twiddled until the VCO went just 10 Hz when told to do so, not more, not less, or I would hear steps in the tuning.+2) Finding a process for the Omni 5  (see [[http://​tentecwiki.org/​doku.php?​id=562pllalign|wiki page]] ​I was able to get this back to working, but only after I reset the coil L6 back to where it was, and then I painstakingly twiddled until the VCO went just 10 Hz when told to do so, not more, not less, or I would hear steps in the tuning.
  
 3) As mentioned above, a DVM is not your friend on one of these. 3) As mentioned above, a DVM is not your friend on one of these.

QR Code
QR Code 564vco (generated for current page)