Message-ID: <BLU185-W16697491860B6A349A480CCF250@phx.gbl>
From: Laurence KL7 L <hellozerohellozero@hotmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Date: Sat, 24 Oct 2015 09:00:55 -0800
Importance: Normal
In-Reply-To: <8D2DC4E529C9F0F-2424-176039@webmail-vd018.sysops.aol.com>
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Subject: RE: LF: XPQ WSPR15 475/136
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Morning Markus - well the transmitters held up well and no issues. The two =
transmitters and  tx antennae are independent of each other. 475 is a 70ft =
vertical large top loaded Marconi with 250ft-ish top. The 136kHz is the  st=
andard "Bill" 550ft circumference loop with 60/70ft vertical sections at ea=
ch end with about 50A loop current. The only difference this year is the 13=
6kHz loops orientation which is now 092/272degT which does not favor Eu (in=
 theory!)=2C and at the moment is a single conductor so a little more lossy=
 - I have physical tree dead and active load  limits here - a bit more flim=
sy branches than Oklahoma=2C even so Im effectively "guying" a few of the t=
rees with the antennae wire having around 1200 pound break strain :-)=20

Both are in the middle of the Boreal forest (100m LMR400 coax runs) which h=
as its issues but for 136kHz its really the only solution that works where =
I can run a reasonable amount of power and not worry too much about setting=
 it alight=2C  given the relatively lower voltages on the loop.

475 is a U3 driving the W1VD 500W PA and 136 is a U2 driving the Decca 5501=
 on two of three modules with 58V both with their own GPS drivers.=20

Due to construction and tight thermal case the U3 has a little more "drift"=
 during the 15 min tx periods but is tolerable.

  I can still run other tx sources to either PA so will be playing with oth=
er modes during winter - Id like to do some of this coherent stuff as I hav=
e a reasonable source with the HP3336b/gps available but thats going to tak=
e me a search in my cable box for the  serial keying stuff  from a few year=
s back.

Conditions are still "cooling off" iono wise from the recent sol/geomag stu=
ff...and its still physicallt warm here temp wise in Alaska so environmenta=
l losses are still higher because of it. I need to build a second Jim M0BMU=
 visual phase/power meter and Ive just love having one of those in line...

Laurence KL7 L WE2XPQ (jet lagged so sorry for typos) =20

To: rsgb_lf_group@blacksheep.org
From: markusvester@aol.com
Date: Sat=2C 24 Oct 2015 04:37:16 -0400
Subject: Re: LF: XPQ WSPR15 475/136

=0A=
Hi Laurence=2C=0A=
=0A=
 =0A=
=0A=
interesting... are you transmitting into a single dual-resonant antenna?=0A=
=0A=
 =0A=
=0A=
Best 73=2C=0A=
=0A=
Markus
=0A=
=0A=
=0A=
 =0A=
-----Urspr=FCngliche Mitteilung-----=20
=0A=
Von: Laurence KL7 L <hellozerohellozero@hotmail.com>
=0A=
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
=0A=
Verschickt: Sa=2C 24 Okt 2015 5:20 am
=0A=
Betreff: LF: XPQ WSPR15 475/136
=0A=

=0A=
 =0A=
    =0A=
=0A=
Ill give this a go but will run parallel 136 and 475kHz WSPR15 tonight  -  =
800W on 136 and 200W on 475 all being well - they are forecasting a  little=
 geomag so will shall see. Light dim in the shack a bit....
=0A=

=0A=
Ill be off around 0900 to look for SAQ on 17.2kHz
=0A=

=0A=
Laurence KL7 L WE2XPQ  		 	   		  =0A=
=0A=
   		 	   		  =

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<body class=3D'hmmessage'><div dir=3D'ltr'>Morning Markus - well the transm=
itters held up well and no issues. The two transmitters and&nbsp=3B tx ante=
nnae are independent of each other. 475 is a 70ft vertical large top loaded=
 Marconi with 250ft-ish top. The 136kHz is the&nbsp=3B standard "Bill" 550f=
t circumference loop with 60/70ft vertical sections at each end with about =
50A loop current. The only difference this year is the 136kHz loops orienta=
tion which is now 092/272degT which does not favor Eu (in theory!)=2C and a=
t the moment is a single conductor so a little more lossy - I have physical=
 tree dead and active load&nbsp=3B limits here - a bit more flimsy branches=
 than Oklahoma=2C even so Im effectively "guying" a few of the trees with t=
he antennae wire having around 1200 pound break strain :-) <br><br>Both are=
 in the middle of the Boreal forest (100m LMR400 coax runs) which has its i=
ssues but for 136kHz its really the only solution that works where I can ru=
n a reasonable amount of power and not worry too much about setting it alig=
ht=2C&nbsp=3B given the relatively lower voltages on the loop.<br><br>475 i=
s a U3 driving the W1VD 500W PA and 136 is a U2 driving the Decca 5501 on t=
wo of three modules with 58V both with their own GPS drivers. <br><br>Due t=
o construction and tight thermal case the U3 has a little more "drift" duri=
ng the 15 min tx periods but is tolerable.<br><br>&nbsp=3B I can still run =
other tx sources to either PA so will be playing with other modes during wi=
nter - Id like to do some of this coherent stuff as I have a reasonable sou=
rce with the HP3336b/gps available but thats going to take me a search in m=
y cable box for the&nbsp=3B serial keying stuff&nbsp=3B from a few years ba=
ck.<br><br>Conditions are still "cooling off" iono wise from the recent sol=
/geomag stuff...and its still physicallt warm here temp wise in Alaska so e=
nvironmental losses are still higher because of it. I need to build a secon=
d Jim M0BMU visual phase/power meter and Ive just love having one of those =
in line...<br><br>Laurence KL7 L WE2XPQ (jet lagged so sorry for typos)&nbs=
p=3B <br><br><div><hr id=3D"stopSpelling">To: rsgb_lf_group@blacksheep.org<=
br>From: markusvester@aol.com<br>Date: Sat=2C 24 Oct 2015 04:37:16 -0400<br=
>Subject: Re: LF: XPQ WSPR15 475/136<br><br>=0A=
<div style=3D"color:black=3Bfont-family:arial=3Bfont-size:10pt=3B"><font fa=
ce=3D"arial" color=3D"black">Hi Laurence=2C</font></div>=0A=
=0A=
<div style=3D"color:black=3Bfont-family:arial=3Bfont-size:10pt=3B"><font fa=
ce=3D"arial" color=3D"black"></font>&nbsp=3B</div>=0A=
=0A=
<div style=3D"color:black=3Bfont-family:arial=3Bfont-size:10pt=3B"><font fa=
ce=3D"arial" color=3D"black">interesting...&nbsp=3Bare you transmitting int=
o a single dual-resonant antenna?</font><span style=3D"display:inline-block=
=3B"></span></div>=0A=
=0A=
<div> </div>=0A=
=0A=
<div>Best 73=2C</div>=0A=
=0A=
<div>Markus<br>=0A=
</div>=0A=
=0A=
<div>&nbsp=3B</div>=0A=
-----Urspr=FCngliche Mitteilung----- <br>=0A=
Von: Laurence KL7 L &lt=3Bhellozerohellozero@hotmail.com&gt=3B<br>=0A=
An: rsgb_lf_group &lt=3Brsgb_lf_group@blacksheep.org&gt=3B<br>=0A=
Verschickt: Sa=2C 24 Okt 2015 5:20 am<br>=0A=
Betreff: LF: XPQ WSPR15 475/136<br>=0A=
<br>=0A=
 =0A=
<div id=3D"ecxAOLMsgPart_1_f56dee9b-c3a4-43bc-b16c-d35d7dc4fcfc">    =0A=
<div class=3D"ecxhmmessage ecxaolReplacedBody">=0A=
<div dir=3D"ltr">Ill give this a go but will run parallel 136 and 475kHz WS=
PR15 tonight&nbsp=3B -  800W on 136 and 200W on 475 all being well - they a=
re forecasting a  little geomag so will shall see. Light dim in the shack a=
 bit....<br>=0A=
<br>=0A=
Ill be off around 0900 to look for SAQ on 17.2kHz<br>=0A=
<br>=0A=
Laurence KL7 L WE2XPQ  		 	   		  </div>=0A=
</div>=0A=
  </div></div> 		 	   		  </div></body>
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