Hi Nigel,
Well, it's just as strange here-- there hasn't been a trace of a DU showing
up here all season. The Asiatic TP's have been pretty anemic so far, but
at least they are daily visitors.
Nick and Derek seem to have much better reception of DU's than me, probably
because of their
I know the DU at the coast has been weaker than last year at this
time. Im still looking for the cw music on 909khz that I heard last
year at this time.
The Asian signals are there but they show up at the last second 6am
local time. I did happen to find my ground rods that I left behind
Things were not as interesting today, with the high band down
considerably from yesterday. The low band was up a bit, but only to the
extent of having more and better carriers. The only audio (all rather
weak)was noted from 4BC 1116, 4QD 1548, and a few words from presumed
3NE on 1566.
That was fun to note that Nigel and I had similar DU reception on Sunday.
This morning was pretty poor for DU reception. I check for LF NDB's prior to
checking for MW signals. I've found that NDB's are always heard first and
always fade out before I begin to hear anything for MW offshore
Listened from 1240-1310 utc and weak carriers on 279, 594, 693, 774, 936, 972
and 1566. And for the first time this year a got audio from Japan with very
weak audio on 693 and 774.
Bill Block
Prescott Valley, AZ
Drake R8
Craig,
I'm curious to know about the construction of the RG-6 cable that you used for
your test?
Was this just braid shielded? And if so what was the shield coverage? Was
there any foil over the dielectric, and if so was that foil bonded to the
dielectric or just folded?
Good quality RG-6
Got a question Rick. Given the shielding properties of well-built RG-6...do
you think the ferrite choke placed over the shield can be effective?
Curious
Mark Durenberger
--
From: Rick Kunath k...@charter.net
Sent: Monday, September 06, 2010
I noticed that someone has Beverage antenna kits for sale on e-bay. These are
being sold as 160/80 meter amateur band Beverages but I suspect they would work
well for the AM BCB. The kit includes a 9:1 transformer with a BNC coax
connector and a 450 ohm terminating resistor. Both are contained
Nice looking work, and just up the road from me in Nanaimo, BC...Walt
- Original Message -
From: Patrick Griffith antennawiz...@hotmail.com
Date: Monday, September 6, 2010 16:43
Subject: [IRCA] Beverage antenna kit
To: IRCA irca@hard-core-dx.com
I noticed that someone has
On Monday, September 06, 2010 12:21:22 pm Mark Durenberger wrote:
Got a question Rick. Given the shielding properties of well-built
RG-6...do you think the ferrite choke placed over the shield can be
effective?
Mark,
The ferrite over the shield won't improve the shielding performance of the
What I would ask this fellow is what ferrite material he used. Hams tend to use
cores good from 2 - 30 MHZ and they don't work too well when used for LW and
most of MW. A popular ham core is Amidon type 43, and it certainly is not
optimum for LW.
And if I am going to pay someone to provide
For the loop builders on the list, ebay has listed 4:1 Vernier Gear Set - For
AM MW Loop Antenna Tuning
Item number 300457247327
Dennis,
Salmon Creek, WA
___
IRCA mailing list
IRCA@hard-core-dx.com
Thanks Rick. Not only did it make sense, but I'd like to be able to forward
this to the NRC DX group, with your okay.
Regards,
Mark Durenberger
--
From: Rick Kunath k...@charter.net
Sent: Monday, September 06, 2010 12:20 PM
To: Mailing list for
On Monday, September 06, 2010 02:16:23 pm Mark Durenberger wrote:
Thanks Rick. Not only did it make sense, but I'd like to be able to
forward this to the NRC DX group, with your okay.
Regards,
Mark Durenberger
Yes, feel free to forward that on to the NRC group Mark.
This hobby is all
Rick -
I liked your explanation except for the part below. Considering the choke
impedance to be part of a voltage divider along with the ground resistance, you
surely need a choke with at least several thousand Ohms of impedance. With a
poor ground connection (sandy soil), you can need
Very good points Chuck. I have no experience at all with the Beverage antenna.
I have never lived in a place where I could erect one. I just noticed this kit
on e-bay and thought I'd point it out.
From: charle...@msn.com
To: irca@hard-core-dx.com
Date: Mon, 6 Sep 2010 17:57:31 +
Up really early to help out my wife who burned
her hands while we were preparing a fiery Texas chili.
Normally when I cut up the really hot chili peppers, I wear
gloves - she did not.
Woke me up at 4AM saying My hands are on fire...
Always a shock that early.
Anyway - a bath of soap followed by
My only contribution to this discussion is to say that I've tried RS clamp-on
ferrite chokes in multiple applications from coax shielding for antennas to
shielding the cables for the old CRT's for the computer, and never found that
they did anything.
Russ Edmunds
Blue Bell, PA ( 360' ASL )
I did the same thing yesterday. However, it wasn't my hands that were burning.
Ahhh...the sacrifices one makes for great chili.
Bert New
Watkinsville, Georgia
Proudly Serving You Since 1964!
From: c...@islandnet.com
To: irca@hard-core-dx.com
Date: Mon, 6 Sep 2010 11:43:39 -0700
On Monday, September 06, 2010 02:36:01 pm Chuck Hutton wrote:
I liked your explanation except for the part below. Considering the choke
impedance to be part of a voltage divider along with the ground
resistance, you surely need a choke with at least several thousand Ohms of
impedance. With a
I've been looking at Cat 5 cable too. i've been really interested in the
shielded twisted pair variety (FTP or STP) to fight common mode noise. I
found this quote from one of the authors of the high speed ethernet spec, Dr
Howard Johnson:
In high-speed applications involving low-impedance
:Product: Geophysical Alert Message wwv.txt
:Issued: 2010 Sep 06 1806 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 05 September follow.
Solar flux 82 and mid-latitude A-index 3.
The
Rick:
In my mind, the best design for usage of common mode chokes is found in the
bible for 160 meter DXers called Low Band DXing. In the 4th edition, figure
7-88 and the adjacent text nicely explain grounding with common chokes. An
extract is at:
OK, one other thought...
The goal is to reduce the signal ingress on an antenna cable to the lowest
possible level. What if the receive end was run through a transformer to
open the ground connection. Then, a single wire was run parallel right next
to the coax for the entire length. Then
I'm curious to know about the construction of the RG-6 cable that you used
for
your test?
Brand new, off the roll Belden RG-6 cable. Shield as you described as well
as the foam dielectric. Junk RG-6 wouldn't be worth the effort. In this
case it made no difference from the new Radio Shack
09-05 10 0500 PDT Nanamo BC -- I thought I'd give 1080 a try since I'm 75
miles or so from my local on 1070 in Victoria and I thought I heard music
and/or
singing under the Portland Or. sports station that I tried to reduce in signal
somewhat and also could not kill some qrm and so did not
So what you're saying Craig, is that you used unshielded CAT-5, and your tests
suggest that by running it along the ground ( as would be usual for beverages
at the beach ) that tends to mimic the effect of a shield ?
And this to anyone - this discussion has thus far been oriented mainly toward
I seem to recall that 'back in the day', Gordon Nelson was concerned about
keeping the feedlines from his loops as short as practical for the application.
Realizing that his recommended feedline was car radio cable with the original
center conductor removed and replaced by insulated #22 or so (
I agree with Craig - CAT5 has spec values for crosstalk that have to be met
from 1 MHZ up to 1 GHZ. At 1 MHZ, I think it is fair to expect at least 40 dB
of attenuation.
Craig: Shielded cable is the norm in Europe but is not so popular here in the
US. Even so, you'll always find some on
Extremely interesting...
Snipped Here and there
Another part of the test was to wind a dozen turns through a large ferrite
toroid. No difference at all. Also tried a new un-un to do a ground
isolation. Again, no change.
I'm wondering about the core material for that test toroid? You'd
Another interesting idea...
n Monday, September 06, 2010 06:12:46 pm Craig Healy wrote:
The goal is to reduce the signal ingress on an antenna cable to the lowest
possible level. What if the receive end was run through a transformer to
open the ground connection. Then, a single wire was run
Hello All,
As other Asiatic TP-chasers have noted, there was a definite upturn in
propagation this morning, with three different Korean stations (972-HLCA, the
1053-Jammer and 1566-HLAZ) and 1575-VOA Thailand all having vibrant signals
here this morning. 972-HLCA and 1575-VOA were near
So what you're saying Craig, is that you used unshielded CAT-5,
and your tests suggest that by running it along the ground
( as would be usual for beverages at the beach ) that tends to
mimic the effect of a shield ?
I would think that having the cable right on the ground would make the outer
1245 to 1305UT this morning, and splatter seemed worse, so not too much audio.
Main difference from recent mornings was some audio on 1206, which would be
first evidence of China here this season. Incidentally, DUs have really been
missing from the mix here the last little while, except for
See this link for more details regarding ZNS1's off air status due to copper
theft:
http://blogs.rnw.nl/medianetwork/zns-1540-signal-restoration-likely-to-take-30-days
___
IRCA mailing list
IRCA@hard-core-dx.com
Russ Edmunds wb2...@yahoo.com wrote:
I seem to recall that 'back in the day', Gordon Nelson was concerned about
keeping the feedlines from his loops as short as practical for the
application. Realizing that his recommended feedline was car radio cable with
the original center
Just heard them playing Summertime Blues. So who fed Barry M. the info that
they are news/talk? With all the recent postings about them, I don't see how it
gets listed this way. They had Twins BB, they have a half hour show with
people calling in to sell things, not sure if any other
I believe that Gordon's low capacitance cable might also have been needed to
reduce the capacitance seen at the output of his FET loop amplifier, otherwise
it would be more prone to oscillate.
My old NRC antenna reference manual, says that the feedline was used to
eliminate vertical effect.
At 23:36 9/6/2010, you wrote:
We were on different planets this morning Gary. Maybe I'd better go check my
antennas...
Nick
Hello All,
As other Asiatic TP-chasers have noted, there was a definite upturn in
propagation this morning, with three different Korean stations (972-HLCA,
Hi Nick,
It seemed that your listening time this morning ended up (at 1305) about
the time that the TP's started increasing in strength here, at the beginning
of sunrise enhancement. It was pretty dark here until 1305, and peak
signals didn't come until around 1315 on most frequencies.
:Product: Geophysical Alert Message wwv.txt
:Issued: 2010 Sep 07 0001 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 06 September follow.
Solar flux 80 and mid-latitude A-index 8.
The
That's really odd... I thought that conditions would have been alot
better. I was on my way to breakfast and I could hear a het 828 taking
out 830 KNCO on my supper crappy car cassett radio.
Thank you.
Derek Vincent
Vmedia360...everywhere
On Sep 6, 2010, at 6:00 PM,
On Monday 06 September 2010 20:12:26 George Sherman wrote:
Just heard them playing Summertime Blues. So who fed Barry M. the info
that they are news/talk? With all the recent postings about them, I don't
see how it gets listed this way. They had Twins BB, they have a half
hour show with
Bill
You most likely had KVNI in Coeur d'Alene ID, which last I heard is oldies.
0500 would be a bit late for KYMN
Bruce
Sent via BlackBerry by ATT
-Original Message-
From: bill kral jwk...@yahoo.ca
Sender: irca-boun...@hard-core-dx.com
Date: Mon, 6 Sep 2010 15:42:40
To:
I seem to recall that 'back in the day', Gordon Nelson was
concerned about keeping the feedlines from his loops as
short as practical for the application. Realizing that his
recommended feedline was car radio cable with the original
center conductor removed and replaced by insulated #22 or
so (
The goal is to reduce the signal ingress on an antenna cable to the
lowest possible level. What if the receive end was run through a
transformer to open the ground connection. Then, a single wire was
run parallel right next to the coax for the entire length. Then
coupled out of phase with the
Not sure if I missed the memo but on my day trip to Cedar Falls IA and
noted KWOF off the air prob for good. Their vy low pwr FM with 10watts
and witched to 91.3 with a 4 county coverage area. Wasnt sure what I
was hearing w/KWOF gone cause my wife hates static but i was prob
hearing Crystal
Just a note to add to George's thread, at one time they carried a right
wing talk show in the afternoons but I have not heard them for 2 years.
70 and 80's music is their primary focus and Twins radio network. Prob
high school stuff too. 73 Todd back in Woodbury MN
Thanks, Chuck for bringing the technical issues to the forefront. I emailed
the fellow directly, and here's his reply:
Dear canswl,
Good evening Gentleman !
I am using binocular ferrite cores for my
transformers. The material I use closed to 43
material . It has permeability of 850 .That
Noted a strong OC on 1250 tonight, 10:30 PM PDT. 1250 is typically dominated
by Santa Barbara.
Martin Foltz
Mission Viejo CA
___
IRCA mailing list
IRCA@hard-core-dx.com
http://montreal.kotalampi.com/mailman/listinfo/irca
Opinions expressed in
50 matches
Mail list logo
