[IRCA] PL-380 DSP Selectivity Under Severe Domestic Splatter... 648-Voice of Russia

[D1028Gary@xxxxxxx]

Hello All,
 
Uploaded this morning was an MP3 of the new Tecsun PL-380's DSP filtering  
performance in the reception of a fairly strong TP station (738-Taiwan), 
with  only minimal splatter from 740-KCBS. Unfortunately, TP-DXing is rarely so 
 ideal.
 
The link below is for a recording of the PL-380's DSP performance in a much 
 more challenging test: the reception of 648-Voice of Russia, in the face 
of  severe splatter from 650-KSTE in Sacramento, California (at 1453 UTC this 
 morning, here in Puyallup, WA). The recording begins with a strong signal 
from  648-VOR, on the PL-380's 1 kHz DSP selectivity setting. The filtering 
is then  changed to the 6 kHz setting (losing VOR completely), the 4 kHz 
setting  (bringing in a trace of VOR), the 3 kHz setting, the 2 kHz setting, 
and finally  the 1 kHz setting, restoring VOR's original signal. 
 
Finally, as the ultimate benefit, during the last 7 seconds the PL-380's  
frequency is changed to 647 kHz, moving farther away from the splatter. This  
last step (which is counterproductive on the PL-310, and other DSP  
Ultralights with the "soft mute" function) provides a great benefit on the  
"soft-mute free" PL-380. 
 
_http://www.mediafire.com/?tnwem2fiz1y_ 
(http://www.mediafire.com/?tnwem2fiz1y) 
 
As with the previous MP3, this recording was made with the assistance of an 
 experimental 9' sided PVC box loop, set up in the back yard. Hopefully the 
MP3  will be of assistance to those considering a purchase of the PL-380.
 
73, Gary DeBock (in Puyallup, WA)
 
 
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