[DSP-10] LOW POWER PUA 43 contact

[Jimmy Oldaker W7CQ]

Hi All

Finished the DSP-10 last weekend and now am making contacts.

Here is what is possible with the DSP-10 in a weak signal mode - PUA 43

Two nights ago I completed a contact with Bob, W7PUA using PUA 43 mode.  I 
live on a hilltop 1100 feet elevation (600feet above the valley floor )and 
can effectively see Bobs antennas line of sight.  He lives 42.9 miles 
away.  (The distance was computed with WinGrid using 
our  latitude/longitude's. ) The antenna is a 10 element CrunchCraft. ( 
spell it that way on purpose) and Bob has 4 stacked antennas.

POWER LEVEL On the W7CQ end was turned down to 30 nanowatts.  (.03 
milliwatts)  Measured with a HP 432B  power meter,  this computes to, if I 
figure it right, is about 1,430,000,000 miles per watt.

ONE BILLION FOUR HUNDRED THIRTY MILLION MILES PER WATT.   I guess you can 
call that weak signal mode for sure.

My DSP-10 I just finished,  puts out 11.25 mw, full power bearfoot at 
a  DSP-10 setting of  Xmit Pwr - 100.  The Xmit Pwr was set at 40 for this 
contact.  This is 60 db down from the 11.2 mw. full power setting.   I have 
a Brickette amp that will run 6 watts as an afterburner but after you read 
the above paragraph, I guess I don't need it.

Everybody keep soldering It is worth it.

Thanks Bob for all the hard design work.  IT SURE WORKS!!!!!











Jimmy  Oldaker   W7CQ
      Eugene, Oregon
            CN83jx

a DSP-10 ready station

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