[Lowfer] WMS on May 16

[Paul Daulton]

   John thats the kind of copy I used to get on WEB and MO. Sure miss 
them. I need to check the distance to you on Bali and compare with 
distance to Ralph in Natitoches La. Last year at this time I would get 
into Ralph's grabber daytime via ground wave and go out at night when 
XR and COV and SIW would come in. Interesting that you copy me at 
night. Peter up in Elgin Il used to get good copies on MO daytime in 
the month of september. 

   Work is progressing on Dave Philipps' beacon, he has the loop up at 
his lake side home. We have the ID chips and I have completed a 
transmitter strip.We have chips for 185302.8 khz and 189501khz. The 
Heber Springs beacon will probably be on the latter with ID of HSA at 
qrss30.I hope the frequency separation will allow me to copy him ,at 70 
miles without having to shut WMS off. Matching network is breadboarded 
out the the shop. Using 100 uh coil to simulate the Ashlock loop. I 
have stepdown transformer wound, 6000pf siver mica caps(500v) and a 
1000pf air variable cap to simulate the series resonant loop circuit. 

   I wonder what kind of rec you are using?

   Paul k5wms

Quoting JD
   * :
This is what WMS looked like here in the early morning, after all the QRN
disappeared. It was as quiet as mid-winter for a few hours. Hurrah!

This capture told me two things:

(1) I need a more climate controlled environment for my receiver than the
car can provide. It was down to 40 both outside and inside the car at
sunrise. But when I parked out there again less than two hours later, the
sun heated the interior faster than I could move air through the passenger
compartment, so there's a fair amount of drift visible as the air
temperature passed through a change of about 40 degrees Fahrenheit. 

(2) I need to get busy and finish my buffer amp, so I won't have the
current 10 db or so of loss from antenna mismatch. It started out as a very
simple project, but feature creep set in, as always. (Now it's to become a
distribution amp as well, so I can run more than one receiver at a time.)
With the atmospheric noise temporarily gone, the limiting factor in copying
WMS was clearly the receiver's internal noise. Eliminating that mismatch
would have given me absolutely stunning copy, maybe even by ear. At this
time of year, QRN is most generally the limiting factor--but as this morning
showed, not always!

John

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Paul Daulton K5WMS
beacon WMS 185.302 khz qrss30/slow 24/7
Jacksonville,Ar 72076
em34wu