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SRF antenna transplant comments
Thank you for the reply, Gary. It's nice to know that only matching
up the inductance is close enough!
Thank you for the comment and question, Guy. My understanding is
that despite their being two
Thank you for the reply, Gary. It's nice to know that only matching
up the inductance is close enough!
Thank you for the comment and question, Guy. My understanding is
that despite their being two
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By
sloshatron <wa1gwh@...>
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#155
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20 Inch Loopstick Overloads SRF-39FP
Hello Guys,
Apparently not even the crunch-resistant CXA1129chip can handle the mega-RF from a 20 inch loopstick.
Working OK until the 1400 kHz trimmer was peaked,the huge RF onslaught
Hello Guys,
Apparently not even the crunch-resistant CXA1129chip can handle the mega-RF from a 20 inch loopstick.
Working OK until the 1400 kHz trimmer was peaked,the huge RF onslaught
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By
Gary DeBock
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#154
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Re: Calling John Bryant / Firsts and distance records
How much difference did the tweak make? I have a number of headphones;
the Sennheiser HD 420 sounds the best.
My SRF-59 and 39FP are stock; at some point I'll have Gary work his
magic on them. I do
How much difference did the tweak make? I have a number of headphones;
the Sennheiser HD 420 sounds the best.
My SRF-59 and 39FP are stock; at some point I'll have Gary work his
magic on them. I do
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By
Dennis Gibson <wb6tnb@...>
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#151
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Re: Argentina on 1620
You know what they say; two people divided by a common language.
wrote:
with a two foot loop"
You know what they say; two people divided by a common language.
wrote:
with a two foot loop"
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By
Dennis Gibson <wb6tnb@...>
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#150
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Re: Argentina on 1620
Hi Huelbe,
at 0233 UTC it is playing the Beatles "Please Please Me" OM dj, weak.
huelbe_garcia@... wrote: Send instant messages to your online friends http://uk.messenger.yahoo.com
Hi Huelbe,
at 0233 UTC it is playing the Beatles "Please Please Me" OM dj, weak.
huelbe_garcia@... wrote: Send instant messages to your online friends http://uk.messenger.yahoo.com
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By
Paul Logan
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#182
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Re: fanatical mega-loopstick question
Hi Garry,
I had been thinking about spider coils also for an ultralight. How large of a coil form do you think would be needed to compete with a hot rodded ferrite loop? Also, do you envision
Hi Garry,
I had been thinking about spider coils also for an ultralight. How large of a coil form do you think would be needed to compete with a hot rodded ferrite loop? Also, do you envision
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By
Guy Atkins
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#152
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Re: Argentina on 1620
Hi Paul,
can you describe what kind of programming youheard? If we can confirm that, it's a nice DX!
I live next to Argetina (south Brazil) and there isan station on 1620 really strong. I learnt
Hi Paul,
can you describe what kind of programming youheard? If we can confirm that, it's a nice DX!
I live next to Argetina (south Brazil) and there isan station on 1620 really strong. I learnt
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By
huelbe_garcia@...
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#149
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Re: Argentina on 1620
One of these days I will manage English! that was supposed to read " with a two foot loop"
Paul Logan wrote: Send instant messages to your online friends http://uk.messenger.yahoo.com
One of these days I will manage English! that was supposed to read " with a two foot loop"
Paul Logan wrote: Send instant messages to your online friends http://uk.messenger.yahoo.com
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By
Paul Logan
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#148
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Argentina on 1620
Hey All,
which Argentine station on 1620 really "gets out" weak on the srf59 with a one two foot loop.
Paul Logan,
Lisnaskea, N. Ireland
Listening Homepage: http://geocities.com/yogi540/
Photos:
Hey All,
which Argentine station on 1620 really "gets out" weak on the srf59 with a one two foot loop.
Paul Logan,
Lisnaskea, N. Ireland
Listening Homepage: http://geocities.com/yogi540/
Photos:
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By
Paul Logan
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#147
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Re: fanatical mega-loopstick question
Garry and Guy,
All of the mega-loopsticks (7", 14" and 21") havebeen constructed using an LCR meter to measure inductance only, to ensure thatthe recycled coils (mostly salvaged from the
Garry and Guy,
All of the mega-loopsticks (7", 14" and 21") havebeen constructed using an LCR meter to measure inductance only, to ensure thatthe recycled coils (mostly salvaged from the
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By
Gary DeBock
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#153
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Re: Calling John Bryant / Firsts and distance records
Hi Dennis,
I have two SRF59's one was tweaked by me - as it turns out the tweak brought radio # 2 up to the level of the other stock one in terms of sensitivity so I may have got a "dud".
However I
Hi Dennis,
I have two SRF59's one was tweaked by me - as it turns out the tweak brought radio # 2 up to the level of the other stock one in terms of sensitivity so I may have got a "dud".
However I
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By
Paul Logan
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#146
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Re: Calling John Bryant / Firsts and distance records
THANKS, PAUL....
I have no idea what happened to your first note. I'll be doinm a List
update when I get back to Stillwater in a few days.
John B.
THANKS, PAUL....
I have no idea what happened to your first note. I'll be doinm a List
update when I get back to Stillwater in a few days.
John B.
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By
bjohnorcas@...
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#145
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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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