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My first image on the SRF-59
By
John Cereghin <jcereghin@...>
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#144
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fanatical mega-loopstick question
Hi Gary;
When you measure the recycled coils on the LCR meter, are you
checking only the L or are you somehow taking into account any C
differences between the original and tranplant coils (either on
Hi Gary;
When you measure the recycled coils on the LCR meter, are you
checking only the L or are you somehow taking into account any C
differences between the original and tranplant coils (either on
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By
sloshatron <wa1gwh@...>
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#143
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Re: Calling John Bryant / Firsts and distance records
Paul - is your SRF-59 stock (not tweaked for best performance)? Are
your non expanded band logs barefoot or with the loop?
73
wrote:
guess you didn't receive it so here goes again:
as follows.
4072
Paul - is your SRF-59 stock (not tweaked for best performance)? Are
your non expanded band logs barefoot or with the loop?
73
wrote:
guess you didn't receive it so here goes again:
as follows.
4072
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By
Dennis Gibson <wb6tnb@...>
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#142
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Calling John Bryant / Firsts and distance records
Hi John,
I mailed you some time back regarding firsts and distance records, I guess you didn't receive it so here goes again:
I have worked out that my first UL loggings from North America were as
Hi John,
I mailed you some time back regarding firsts and distance records, I guess you didn't receive it so here goes again:
I have worked out that my first UL loggings from North America were as
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By
Paul Logan
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#140
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20.25" Loopstick Successfully Tansplanted into SRF-39FP
Hello Guys,
The fanatical mega-loopstick experimentation withthe SRF-39FP has reached a new level (perhaps along with the eccentricityof the experimentor).
Using two 7" and one 6.25"
Hello Guys,
The fanatical mega-loopstick experimentation withthe SRF-39FP has reached a new level (perhaps along with the eccentricityof the experimentor).
Using two 7" and one 6.25"
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By
Gary DeBock
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#141
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Re: Off topic balun question
Hi John,
Im familiar with your excellent articles on balun fabrication and in fact have been using them as a reference for ages.
I was just wondering what cores are used in commercial rx baluns which
Hi John,
Im familiar with your excellent articles on balun fabrication and in fact have been using them as a reference for ages.
I was just wondering what cores are used in commercial rx baluns which
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By
Paul Logan
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#139
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Re: Loggings for 4/4/08
Paul,
You might check the World Records at various transmitter powers. You might
be setting records for 50 kW stations, for instance. In any case, a great
set of loggings!
John Bryant
Paul,
You might check the World Records at various transmitter powers. You might
be setting records for 50 kW stations, for instance. In any case, a great
set of loggings!
John Bryant
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By
bjohnorcas@...
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#138
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Re: Off topic balun question
Paul,
I'm outta town for the weekend and away from references. However, from
memory, there really isn't one formulation of ferrite that will work at
OPTIMALLY at Longwave up through 30 MHz.
Paul,
I'm outta town for the weekend and away from references. However, from
memory, there really isn't one formulation of ferrite that will work at
OPTIMALLY at Longwave up through 30 MHz.
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By
bjohnorcas@...
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#137
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Re: Off topic balun question
Hi Paul:
Our own John Bryant wrote the book on these! Look to
www.dxing.info/equipment/impedance_matching_bryant.doc and
www.dxing.info/equipment/impedance_transformer_bryant2.doc
for the
Hi Paul:
Our own John Bryant wrote the book on these! Look to
www.dxing.info/equipment/impedance_matching_bryant.doc and
www.dxing.info/equipment/impedance_transformer_bryant2.doc
for the
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By
satya@...
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#136
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Off topic balun question
Hi all,
I know this is off topic but was wondering can anyone suggest a suitable ferrite core for general listening from long wave up to 30 mhz - does such a core exist?.
I found a T 200 - 2 in my
Hi all,
I know this is off topic but was wondering can anyone suggest a suitable ferrite core for general listening from long wave up to 30 mhz - does such a core exist?.
I found a T 200 - 2 in my
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By
Paul Logan
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#135
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Loggings for 4/4/08
Hi all,
a few TA's noted here on the SRF59 barefoot this morning -
850 WEEI
920 CJCH
940 CINW
950 CKNB
1010 CFRB
1010 WINS
1130 WBBR
1170 WWVA
When coupled to a 4 and 2 foot loop around dawn these
Hi all,
a few TA's noted here on the SRF59 barefoot this morning -
850 WEEI
920 CJCH
940 CINW
950 CKNB
1010 CFRB
1010 WINS
1130 WBBR
1170 WWVA
When coupled to a 4 and 2 foot loop around dawn these
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By
Paul Logan
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#134
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Gary's SRF-39 with the big loopstick
Hi Folks;
Very interesting antenna transplant that Gary performed on the SRF-
39. Any special reason that the coils are way out on the ends of the
ferrite bar? I presume the original antenna and
Hi Folks;
Very interesting antenna transplant that Gary performed on the SRF-
39. Any special reason that the coils are way out on the ends of the
ferrite bar? I presume the original antenna and
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By
sloshatron <wa1gwh@...>
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#132
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Re: Gary's SRF-39 with the big loopstick
Hello Garry,
Thanks for your comments on the SRF-39FPmega-antenna transplant, and welcome to the discussion. The crystal setgroup and the ultralight radio group seem to have a lot in common
Hello Garry,
Thanks for your comments on the SRF-39FPmega-antenna transplant, and welcome to the discussion. The crystal setgroup and the ultralight radio group seem to have a lot in common
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By
Gary DeBock
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#133
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Greetings from Joe Miller, KJ8O
Hello everyone,
Today is the second anniversary of passing my first amateur radio exam
so I thought it would be a great day to joing this list as well. Not
too much planned for this weekend, but am
Hello everyone,
Today is the second anniversary of passing my first amateur radio exam
so I thought it would be a great day to joing this list as well. Not
too much planned for this weekend, but am
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By
radiodxer2000 <radiodxer2000@...>
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#131
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Off to see the Wizard.......with a Bag of ULR's under my arm!!
Hi Guys:
Well.......I'm off to the Semi-Annual ODXA DX Camp in the
morning.........will be there til Sunday afternoon. It is held North of
Toronto....so we're a Long Way from any Ocean ....but
Hi Guys:
Well.......I'm off to the Semi-Annual ODXA DX Camp in the
morning.........will be there til Sunday afternoon. It is held North of
Toronto....so we're a Long Way from any Ocean ....but
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By
robert ross
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#130
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SRF-59 coupled to ferrite bars
Dear folks,
Gary's mating of a large ferrite bar to the SRF-59 would be highly
desirable. Like another earlier post, I shy away from opening radios
as "disaster would be sure to follw". I am
Dear folks,
Gary's mating of a large ferrite bar to the SRF-59 would be highly
desirable. Like another earlier post, I shy away from opening radios
as "disaster would be sure to follw". I am
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By
lrdheat
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#128
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Re: SRF-59 coupled to ferrite bars
Hello Richard,
Thanks for your comments, and the information onyour SRF-59 inductive coupling with the PR-D5 and ICF-EX5. Yourapproach is one that's new to me, although booster bars (such as
Hello Richard,
Thanks for your comments, and the information onyour SRF-59 inductive coupling with the PR-D5 and ICF-EX5. Yourapproach is one that's new to me, although booster bars (such as
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By
Gary DeBock
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#129
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Re: Just Joined
Kirk,
Welcome to ultralightdx! You mentioned needing a comprehensive listof broadcast band stations.... I'd been meaning to write to you aboutthat. My favorite web site
Kirk,
Welcome to ultralightdx! You mentioned needing a comprehensive listof broadcast band stations.... I'd been meaning to write to you aboutthat. My favorite web site
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By
John H. Bryant <bjohnorcas@...>
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#127
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Re: "March Madness" Project-- A 14.5 inch Loopstick Transplant for the SRF-39FP
Gary!
Great transplant operation!!! Several questions:
1. Where did you get the Litz wire that you are using to wind thecoils? What size is it?
2. Are you following the L values from that one-page
Gary!
Great transplant operation!!! Several questions:
1. Where did you get the Litz wire that you are using to wind thecoils? What size is it?
2. Are you following the L values from that one-page
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By
John H. Bryant <bjohnorcas@...>
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#126
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The Ultralightdx Web Site: Content, Uploading, etc.
I am certain that most people on here are already familiar with thedetails/services available to members of a yahoo group. In casethat you are not, here are some comments that you might
I am certain that most people on here are already familiar with thedetails/services available to members of a yahoo group. In casethat you are not, here are some comments that you might
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By
John H. Bryant <bjohnorcas@...>
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#125
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