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Re: LF: F6CNI : RX test on LF using a 2 ground rods antenna.

from [Andre Guyé] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: LF: F6CNI : RX test on LF using a 2 ground rods antenna.
From: Andre Guyé <[email protected]>
Date: Thu, 4 Jul 2013 19:15:24 +0200
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Just for info :
 
My PC is a very low cost HP model G5401 without extra sound or video card.
 
With OP 8, OP 32, WSPR 2, WSPR 15, Spectran ans some others programs running, the CPU using is only 6 %. Not too bad indeed !
 
You can see the nice trace coming from PA0WMR ! See the eyes of my dog who is also looking at...
 
Andy F6CNI.
 
Spectran Version 2 (build 216) - Audio source Microphone (USB Audio CODE_2013-07-04_19-03-05
 
Sent: Thursday, July 04, 2013 6:43 PM
Subject: LF: F6CNI : RX test on LF using a 2 ground rods antenna.
 
 
Hello to all.
 
To night I’ll test for receiving a 2 ground rods antenna on 136 USB, modes : OP 8, OP 32, WSPR 2 and WSPR 15, all at the same time.
 
Distance between the two rods : 35 meters. Each rod : 50 mm diameter aluminium tube, 2 meters long.
 
A low power test permits to tune the antenna to 50 Ohms. It needs an L network with a 275 µH serial coil and a 4.7 nF in parallel on the antenna side.
 
Bi directional receiving antenna azimuth : UK / VE one side and I / SV on the other side.
 
No preamplifier is necessary. RX is an IC7200.
 
Hope to copy you !
 
73 from Andy F6CNI. JN19QB.
 
 
 
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