On 4/22/2024 2:00 PM, Wes Stewart via Topband wrote:
Appears to me that if you want confirmation you pay up. I wouldn't hold my
breath waiting for free LoTW.
I believe that if I want a confirmation from someone or group who has
activated an entity, county, grid, IOTA, I should contribute
On 4/21/2024 9:00 AM, Jeff Blaine wrote:
What I found interesting in the HEBA103 document was that it seemed the
FS measurements were taken at ground level along two compass points. If
I'm not mistaken, the power radiated is spread out over a 3-dimensional
space and from that standpoint, I
On 4/20/2024 9:18 AM, Joe Subich, W4TV wrote:
Similarly, to the AM broadcaster, "Broadband" simply means sufficient
bandwidth to keep the transmitter happy and avoid distortion of an
IBOC digital signal. That is far more narrow than even a "50 KHz
under 1.5:1" for amateurs on 160.
Great
On 4/19/2024 10:27 AM, Henry Pollock - K4TMC wrote:
Isn't this basically a vertical dipole with capacity hats. I will admit
that the top capacity hat is prettier than the copper foil bottom hat.
Yes, that's exactly what it looks like. Tom Schiller, N6BT, developed
and mfd several designs,
On 4/3/2024 8:13 AM, w3...@roadrunner.com wrote:
This thread implies that Life in China comes with huge QRM-powerline
noise, which makes a lot of sense.
Since the introduction of switch-mode power supplies, the fact that they
are cheaper than traditional linear supplies, and the mandate for
On 4/3/2024 7:57 AM, Michael Tope wrote:
In the case of that 160 meter dipole it was almost always better as a
receive antenna for 80 meters. It was better at rejecting ferocious
local QRN than the 80 meter inverted-V. Absolute signal level always
dropped owing to the mismatch, but the noise
At N6RO's superstation (among other things, it was the antenna labo of
ARRL Antenna Book Editor N6BV, who lives 100 miles away in the city of
San Francisco), Ken patches lots of antennas to his operating position
for 160M contests for use as RX antennas. The reason is simple -- the
elevation,
On 4/2/2024 2:45 PM, David Raymond wrote:
Yes, the Chinese have really discovered ham radio in the last decade.
And beginning 6-8 years ago, they figured out that they had to set up
stations where the noise was low enough that they could hear stations
calling them. When they first appeared,
On 3/8/2024 6:02 PM, Frank W3LPL wrote:
(similar to NC0B's use of chicken wire on his verticals).
That was a brilliant idea that Rob published in "Ham Radio" in 1977, an
innovative adaptation of long-standing AM broadcast practice.
73, Jim K9YC
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On 3/2/2024 10:43 AM, Jeff Blaine wrote:
I live in an area surrounded by farm lands and assume that the soil here
is nice and conductive. But I have no idea what that really means.
This is a link to ancient FCC maps of soil conductivity to be used by AM
broadcast stations. I would expect it
On 2/19/2024 3:25 PM, Michael Tope wrote:
Since reclassifying 160 DXCC totals to exclude FT8 would be terribly
unfair to those who submitted FT8 confirmations toward DXCC in good
faith, it seems like a possible solution would be to add provisions for
a CW endorsement to the 160 meter DXCC
On 2/19/2024 1:07 PM, ok1tn wrote:
To top it all off, the expedition will not even be present on the island.
Another false belief. The difference is that only a few guys go to the
island, set up the station(s), and go back to their boat anchored
off-share. They return to the island
Also totally false assumptions about digital modes, including FT8. The
modes invented by Nobel laureate K1JT, and expanded on by the team
responsible for WSJT-X software, are widely used on VHF and UHF for
moonbounce with the same sort of arrays used in the past with CW,
providing about 10 dB
On 2/19/2024 7:27 AM, Saulius Zalnerauskas wrote:
Look's like this "Sherlock Holmes" not understand what CB0ZA Robot doing.
It is unreasonable to assume that all FT8 QSOs are with robots. I know
some of the very experienced CW ops who run FT8 on expeditions. WSJT-X
software makes the mode
On 2/6/2024 12:01 PM, Richard McLachlan wrote:
I keep a list of countries that I have worked for my own satisfaction
but I don’t bother with confirmations and don’t even know what LOTW is.
When I was a wee lad, 65 years ago, a QSL card, mailed at our own
expense, was "the final courtesy of a
On 2/5/2024 8:57 AM, Steve Harrison wrote:
This growing practice of hiring a remote in another call area far from
your own QTH, then working wild and exotic DX wile preventing deserving
locals operating from their home stations from working same DX, is
abominable and just plain unethical.
I
On 1/30/2024 11:49 AM, Frank W3LPL wrote:
Northern hemisphere transatlantic propagation is far superior
in January compared to the equinoxes
'
Yep, and that's who the Rules are written for.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband
On 1/30/2024 11:09 AM, Mark wrote:
Also the timing of this "contest" (thanks to the scoring system it's really
more of an activity weekend in this neck of the woods) doesn't do us any
favours down here or in the southern hemisphere in general.
As Tree noted, it is the middle of summer here and
On 1/29/2024 9:28 AM, Steve Harrison wrote:
It just occurred to me: one reason many of us didn't find the VKs/ZLs
would be because we were running unassisted
The second night past midnight, I saw spots for me from ZL, so then did
a lot of listening in that direction. But nothing heard. Noise
On 1/27/2024 12:17 PM, Ed Parish wrote:
Wow, was hearing N6RO at 0030Z here on east coast.
Check out Ken's antenna farm. It's a multi-multi superstation.
Four-square over very good ground.
http://www.jazznut.com/n6ro/n6rostart.htm
I have a 100 ft Tee over lousy ground. :)
73, Jim K9YC
On 1/27/2024 11:13 AM, cqtestk4xs--- via Topband wrote:
Was on and off for a few hours.
Miserable here in NorCal. Turned the rig off after 15 minutes.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Multiple misunderstandings here. First, the earth is a big resistor, so
the only function of that ground rod is lightning protection, and it
ought to be at the shack, not at the antenna.
Second, the function of radials is NOT to couple to the resistive earth,
but the SHIELD the antenna's
On 1/5/2024 6:50 PM, Radio KH6O wrote:
Andree -- wonderful to see someone else using F-connectors and 75 ohm
feedline!
I use exactly that for all RX antennas, with the direct burial RG6 that
DX Engineering sells, but I buy it from a vendor who's much cheaper. For
my high dipoles, I use a
On 1/5/2024 3:10 PM, Mike Smith VE9AA wrote:
I applaud your tireless ability to make your point about the terrible noise
(especially in California?),
Noise is an issue on both sides of QSOs for most hams, having nothing to
do with California. It's the proliferation of noise-generating
On 1/5/2024 11:32 AM, Frank W3LPL wrote:
Unless you live on a salt march (there aren't many in Ohio ,
horizontally polarized antennas are significantly more efficient than
verticals on every band except 160 meters, even if 80 meter horizontally
polarized antennas ore only 70 feet high and 40
On 1/5/2024 10:53 AM, Mike Smith VE9AA wrote:
My personal
feeling is some people are lazy.
Hi Mike,
It has NOTHING to do with lazy. It has everything to do with NOISE.
Those of us not living in the middle of nowhere have greatly increased
noise levels over the last 20 years. When I moved to
As a student, I had co-op jobs both with WLWT and with Pete Johnson, a
broadcast consultant who, with Carl Smith (CREI) wrote the FCC technical
Rules after WWII. I also toured the WLW and adjacent VOA site with my EE
class my senior year.
I'm pretty sure that the 500kW rig is no longer
On 1/4/2024 9:53 PM, Robin wrote:
Milt Jensen, N5IA (SK) constructed his original (circa 1990s) 160M
station TX antenna based on a similar design I encouraged him use. He
built a 180 ft tower with an insulator at 50 ft, Four elevated quarter
wave radials, each made of a box of four pieces
On 1/2/2024 8:38 PM, Steve Ireland wrote:
On a slightly more serious note, I was sad to hear of the passing of George,
W8UVZ.
I didn't know George, but I appreciate all the contributions he made to
our hobby, exemplifying the tradition of "giving back." Anyone who has
worked a Topband
On 12/27/2023 7:35 AM, Jon Zaimes, AA1K via Topband wrote:
Spacing is 1/4 wave.
I haven't looked at spacing for verticals, but optimum spacing for VE3DO
loops worked out to be 5/8 wavelengths, which I am lucky to have.
73, Jim K9YC
_
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On 12/21/2023 12:54 PM, Paul Dulaff via Topband wrote:
Ran a basic EZNEC model with no tower present for your 80 ft X 45 ft
inverted L at 1.825 Mhz. The base impedance for this is 28.5 - j 130
ohms. The get rid of the reactance I extended the top wire an
additional 20 ft so 80 X 65 ft and
On 12/18/2023 5:35 AM, n...@comcast.net wrote:
Hi Rob, my city lot backyard is 50x100 and I worked (CW only) 305
confirmed on 160m from 2006 to 2019
You're in Florida. Rob is in IL. Very different. Most of your path to
country-rich EU and SA is over water, and not via the AU oval. Even
On 12/16/2023 7:04 PM, Kenny Silverman wrote:
Rick, my application is for an in-band RX antenna, but on a higher band.
As detailed in the link I posted, the NCC2 is designed for use on the
lower bands, 160, 80, maybe 60 and 40. My measurements show this. I've
mostly used the VE3DO array on
On 12/16/2023 5:46 PM, Kenny Silverman wrote:
Does the NCC-2 create a predictable antenna pattern? I’m just wondering
how to null the noise but not create some weird pattern which may also
produce a null in the desired direction.
Here's how it can be made to work with suitable antennas.
On 12/8/2023 2:11 AM, Steve Ireland wrote:
I am going to Ellington’s Jazz Club in Perth
Good on you, Steve. At 82 and limited by COVID, I consume my jazz from
Armstrong to Prez to Bird to Coltrane, from the internet and my CD
collection.
73, Jim K9YC
_
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On 12/7/2023 10:40 AM, K9AY wrote:
Had no problem, but I think the Inv-L was at least partly detuned during
receive by the T/R switch open circuit and length of coax.
This is an important factor that we don't often think about. I've used
this to create 2-el arrays from multiple 160M
On 12/5/2023 1:19 PM, Steve Muenich wrote:
I'm looking for a recommendation for an AM Broadcast filter for my receive
only input.
Unfortunately I live 2 miles form 910 khz AM so their 2nd harmonic wipes
out 1820.
It's important to figure out where that harmonic is being generated. If
it's in
On 12/4/2023 10:59 AM, Roger Kennedy wrote:
I worked 2 NA stations on Friday night . . .
Didn't hear a single one on Saturday night !
I'm near San Francisco. I was on only Saturday night; only DX longer
than 2,000 miles were K1LZ in ME, KB1EFS in NNY, WJ9B in NFL, and PJ2T.
With 1.5kW to a
On 11/28/2023 3:40 PM, Wes Stewart via Topband wrote:
Serious weak-signal ops would be using CW, so who cares what the FT8 guys are
doing?
Serious weak signal ops have been using WSJT modes on VHF/UHF since they
were first developed. Likewise on the longwave bands.
One of the sharpest
On 11/28/2023 5:05 AM, Dietmar Kasper wrote:
A resolution at the July ARRL Board of Directors meeting pointed to
“growing concern over fully automated contacts being made and claimed”
for contest and DXCC credit. The rules now require that each claimed
contact include contemporaneous direct
On 11/22/2023 1:43 PM, Dietmar Kasper wrote:
As soon as I was away the station was hijacked by the FT-lovers to play their
computer games.
It is long past time for us to grow past prejudices and learn to use new
techniques. This all reminds me of the fighting against the adoption of
that
by townhouses.
73 Mike N2MS
On 11/16/2023 3:19 PM EST Jim Brown wrote:
On 11/16/2023 10:07 AM, Salvatore Borace wrote:
Hi Dietmar, dont pay attention for many lazy people want FT8
Salvatore,
FT8 is a weak signal mode, providing the advantage of about 15 dB more
noise rejection than CW
On 11/16/2023 10:07 AM, Salvatore Borace wrote:
Hi Dietmar, dont pay attention for many lazy people want FT8
Salvatore,
FT8 is a weak signal mode, providing the advantage of about 15 dB more
noise rejection than CW. From my QTH near San Francisco, I haven't heard
EU on CW for 3 years; in 8
On 11/14/2023 5:51 PM, Mike Waters wrote:
But here am
in the hospital room after they put a stent in a coronary artery.
You got lucky like I did ten years ago. Started a stress test, almost
collapsed before they cranked it up. Found a great surgeon, got a pig
valve and 6 bypasses! I could
On 11/14/2023 1:02 PM, n...@comcast.net wrote:
I live in a city lot and worked 305 on 160m, starting 2006, and I
hear 316 countries, Doug NX4D lives in a 1/5 acre and worked 314 on
160m, starting 2003.
We have no beverage antennas!
People only see what they want to see!
Everyone's antenna
On 11/14/2023 4:52 AM, gudguyham--- via Topband wrote:
I totally agree with your friend, “ no beverage, no contacts”.
In the words of Garry, NI6T, "any Beverage is better than no Beverage."
His run over extremely irregular terrain. So do mine.
I found my beverage to be helpful up to 20
On 11/12/2023 9:31 AM, daleaa...@gmail.com wrote:
It would be great to see 4W8X on 160/80 closer to their SS for east coast
NA. The window into W1 is only about an hour.
Yes. FAR too many expeditioners don't understand that 160, 80, and 40
peak on the DAYLIGHT side of the terminator,
On 10/30/2023 3:25 PM, Stan Stockton wrote:
If you are interested send me an email and I will send you a picture of the
thing put together.
I think it will help with my corrosion problem and wanted to share the
information.
A caution, Stan. One of the reviews notes corrosion after six months.
On 10/28/2023 2:04 AM, Roger Kennedy wrote:
But I had to get OFCOM involved a couple of years ago when I suddenly had S9
+30dB hash all over the band, which seemed to be coming from every house
down the street. They sussed it out within a couple of hours, and removed
the offending faulty PSU.
On 10/27/2023 3:09 PM, Roger Kennedy wrote:
But when I talk about Propagation being poor compared to over 20 years ago,
I'm talking about how much weaker signals have generally been on 160m.
Actual signal strength on a calibrated S Meter.
Hi Roger,
S-meters are calibrated to voltage at the
On 10/25/2023 12:27 AM, Phil Hartwell via Topband wrote:
It's uncanny how often the various Stew events coincide with poor
propagation and/or severe QRN.
I learned a lot from George Wallner, AA7JV, a brilliant engineer and
veteran of a dozen or so expeditions to rare entities, and for which
On 10/24/2023 9:15 AM, Paul Mcl wrote:
and he confirmed that was correct and he was using a large
rhombic by the ocean.
Consider the dimensions of a Rhombic for 160M, and that to benefit for
being "by the ocean," the QSO would have been long path.
73, Jim K9YC
_
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On 10/23/2023 5:14 PM, Tree wrote:
Here in Oregon - the solar cycle has a huge impact on European propagation.
I typically go 4 years or so without hearing a peep from Europe during the
maximum.
My experience 600 miles south of you is the same.
73, Jim K9YC
_
Searchable
On 10/23/2023 9:38 AM, Roger Kennedy wrote:
Yes conditions continue to be really poor on 160m (wonder why?) . . .
We are approaching a solar maxima. Conditions on topband peaked at the
solar minima several years ago.
73, Jim K9YC
_
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On 10/9/2023 3:50 PM, John Kaufmann via Topband wrote:
They were actually quite strong on peaks but
there was deep QSB that took them down to almost nothing
Remember that this is the result of multipath, where both arrivals are
nearly equally strong. Nearly equal because of the cancel deep
I was mistaken.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
His TX is NOT in EN52 -- he's VERY LOUD near San Francisco
73, Jim K9YC
_
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Hi Guys,
Have been looking for you B4 and around your sunset, but don't see you.
I usually have decent prop down that way.
73, Jim K9YC (Near San Francisco)
On 9/7/2023 2:54 PM, Don Greenbaum wrote:
E51D will QRT at 17:00 UTC Sept 8.
Tonight will be our last night on top band and it will
On 8/30/2023 11:24 PM, uy0zg via Topband wrote:
War does not change people at all.
Here, it has strengthened the Ukrainian people.
I will not work RU stations until this aggression ends.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband
On 8/25/2023 8:26 AM, Chuck Dietz wrote:
You can never have too many antennas. (Despite your wife’s opinion)
For 160M events, N6RO patches much of his considerable antenna farm to
his operating position.
On 8/25/2023 5:09 AM, Mike Waters wrote:
> my friend G4IUF (Honor Roll) has a good
On 8/24/2023 9:41 PM, Wes Stewart via Topband wrote:
I worked my first 80 countries on 160 using an inverted-vee dipole, apex at
45 feet, ends down around 6-10 feet. TX power = 500W, dipole used for both TX
and RX.
I think this qualifies a NVIS.
NVIS is a mode of propagation, not an
On 8/24/2023 3:35 PM, Steve Maki wrote:
And conversely (not that I'm an expert topbander), it might be true that
a good DX antenna is more than *adequate* for close in contacts in most
situations.
It IS true that a dipole up a half-wave is down only a few dB at NVIS
angles. So yes, higher is
On 8/24/2023 9:15 AM, w3...@roadrunner.com wrote:
Been working on NVIS antennas for the OHQP this Sat but had a major
malfunction just when all antennas seemed ready to go.
Something I learned from an extensive modeling study about ten years ago
is that the optimum height for an NVIS antenna
On 8/10/2023 5:34 PM, Radio KH6O wrote:
I purchased a 500 foot roll of Digiwave coax via Home Depot. It's
double shielded (braid and foil) and is sweep tested up to 3.5 GHz.
I'm unable to determine the country of origin.
Any comments on short runs of Digiwave feedline for HF or VHF?
What
On 8/4/2023 7:42 AM, Mike Waters wrote:
If you don't already have it,*Low Band DXing* by John Devoldere, ON4UN
(published by the ARRL) has a very informative chapter about receiving
antennas. Most of it is about Beverage antennas. Highly recommended.
Yes, highly recommended.
73, Jim K9YC
On 8/2/2023 11:11 AM, Chuck Dietz wrote:
Am I correct in assuming that Beverage wires sloping downward from the feed
point to the termination will work better than ones that slope upward?
My Beverages are over terrain that starts high, slopes down nearly 100
ft to a creek, then back up to
On 7/6/2023 12:53 PM, Richard (Rick) Karlquist wrote:
The reader's digest version is that you can minimize the learning
curve by using a single action paddle. This largely eliminates iambic
action (which you won't miss), even if the keyer supposedly supports
iambic.
Great advice. Especially
On 7/4/2023 8:44 AM, Richard (Rick) Karlquist wrote:
It sounds clear, but then the band opens up and I find it
is already occupied.
Yes, and that's why, when working assisted in a contest, I have VE7CC's
site filtered to accept spots from the east coast, KH6, and KL7, as well
as from US
On 6/30/2023 2:48 AM, Roger Kennedy wrote:
I reluctantly changed over to an Electronic keyer about 5 years ago
In the '50s, I used a Vibroplex that a cousin had used in the Navy. I
switched cold turkey in the late '60s.
73, Jim K9YC
_
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On 6/25/2023 2:32 PM, Guy Olinger K2AV wrote:
I always liked W4KFC on a bug. It was very recognizable, but it was not
excessive. Like watching someone walk who has added just a hint of dance
steps.
Mae, W3CUL, had a unique fist.
73, Jim K9YC
_
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On 6/16/2023 8:13 PM, GEORGE WALLNER wrote:
Common darkness with EU will be very short, just after my SS.
I'm sure George knows this, but for others reading the mail, on all of
the lower bands (160, 80, 60, and 40) there is usually a propagation
peak on the daylight side of the terminator.
On 5/26/2023 7:53 PM, Jeff Blaine wrote:
Saw the interview. Fascinating. The guys have done a ton of work and
that approach makes sense for these environmentally hyper-sensitive QTH.
Makes sense for lots of locations. Using batteries to buffer a smaller
gen that can support a power amp but
On 5/24/2023 11:10 AM, Charles Morrison wrote:
Where can we find George's work for these items ??
Just looked at his AA7JV qrz page, where there's extensive description
of their Oceania trip and Radio In A Box, with lots of photos. George's
deep pockets are the result of some important
On 5/24/2023 11:10 AM, Charles Morrison wrote:
Where can we find George's work for these items ??
I heard him present it at Visalia in 2019; he presented it the next
month at Dayton.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
George's work on this system is first class engineering, and has
revolutionized TopBand expeditions, allowing simultaneous use of the two
best small signal modes, CW and FT8, by expeditions transmitting high
power. He developed the system so that the expedition wouldn't miss the
one or two
On 4/26/2023 11:17 AM, Richard Karlquist wrote:
Also, how did you arrive at 1836.6 kHz?
WSPR frequencies have been established since 2008, when the software was
introduced. Typical power levels are 100mw - 1W. These signals have
always been there, but we haven't noticed them. They can be
On 4/26/2023 8:30 AM, TreeN6TR wrote:
I have recently purchased a WSPR transmitter that I will be putting on 160
meters soon. It will be running 200 mw (at least for now) and be connected
to my TX antenna most of the time.
3-4 years ago, K1JT and his team introduced new modes intended to
On 4/22/2023 10:02 AM, Rob Atkinson wrote:
I am always amazed at the hams who will buy a home within sight of a
broadcast tower.
Or this church, on a lot that borders a 50KW rig on 1160 kHz. I used
this photo in a talk about RFI in church sound systems. At the time,
many microphones and the
On 4/3/2023 10:20 AM, Tree wrote:
I guess most people have some kind of small antenna analyzer that has a TDR
kind of function.
In my professional life in pro audio, I started doing Time Domain
Spectrometry in 1982, so I have a pretty good handle on how it works.
There is a mathematical
On 3/12/2023 12:01 PM, uy0zg via Topband wrote:
I hope to live to see the next one.
We earnestly join you and your countrymen in that hope.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Blank email. I think all contesting.com reflectors reject formatted
text, and I know they reject attachments.
73, Jim K9YC
On 2/8/2023 2:59 PM, Dave Jorgensen wrote:
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On 2/7/2023 4:12 PM, Henry Pfizenmayer via Topband wrote:
You know -- In these days with the technology available -I see no real reason
why ARRL DXCC should not allow valid DXCC contacts from a boat or whatever that
is absolutely located within XX feet of an entity - hell you can know where
On 2/7/2023 10:17 AM, Roger Kennedy wrote:
I already worked it ages ago, so not too bothered personally.
Their website asks only stations needing the country for DXCC to call.
ATNO only!
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband
On 2/6/2023 12:07 PM, uy0zg via Topband wrote:
I must be missing something again. The founder of the award creates the
program. I enter my LotW password there and it sees all my USA-CA. Or is
it wrong?
Perhaps I wrote poorly, Nick. Yes, the county information is there for
LOTW users who
On 2/6/2023 4:46 AM, Clive GM3POI wrote:
Well I have never checked from here, but I have worked WAS twice during a
single weekend and have over 8600 Qs with the USA on 160.
Great work on that, Clive! But have you done so in the last 3-4 years on
any mode other than FT8? From my QTH near San
On 2/2/2023 7:25 AM, Roger Kennedy wrote:
Can anyone help with this?
It's unlikely that the SWR bandwidth of your antenna was contributing
significant loss on receive over the 160M band.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband
On 1/29/2023 9:25 AM, w3...@roadrunner.com wrote:
had to run the 52' vertical- 0.25 wave 160m
INV-L against a single ground rod. But it works quite well, even so.
It wasn't "working quite well" when you were buried in my noise last
night. We worked, but it wasn't easy. Thanks for the QSO.
On 1/9/2023 9:47 AM, Steve London wrote:
What kind of card checking is done for LoTW confirmations ?
There are, unfortunately, some inconsiderate hams who won't use LOTW.
Thankfully, fewer as time goes by. When we were kids, the "final
courtesy of a QSO" was a QSL, and postage was 2-3 cents.
On 1/9/2023 6:48 AM, STEVE MCDONALD wrote:
Highly unlikely at 1:30 in the afternoon in California.
All of this is an example of why ARRL card checkers must have achieved
DXCC on topband before they can check topband cards.
73, Jim K9YC
_
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On 1/6/2023 9:52 PM, Don Kirk wrote:
Broadcasters are held to some very stringent spurious emission limits and
the stations actually go through a periodic inspection to show compliance.
This was certainly true when I worked in broadcasting 60 years ago, but
With deregulation (during the
On 1/6/2023 12:04 PM, Don Kirk wrote:
and sure enough I see 8 towers at this address using google
earth.
Three towers usually indicates a directional array. Are any of those
stations licensed directional? That could mean either a monster
combining network or violation of someone's license.
On 1/5/2023 9:20 AM, Joe Subich, W4TV wrote:
I would start looking at the allocations for a community
where you have a 1610 and 280 close together (preferably
co-located).
Here's a very useful FCC page that I was lucky to find many years ago.
Searchable in many ways, can get very deep into
I'm much too far away to hear anything, but the obvious question is, "is
it a harmonic or a mix?" So is anyone hearing it loud enough to tell if
there are two programs or only one?
73, Jim K9YC
On 1/4/2023 7:04 PM, sam...@epix.net wrote:
From NE PA FN11VF bearing is roughly NNE. Too
On 12/29/2022 7:59 PM, Stan Stockton wrote:
Maybe someone has some idea of just how much better my signal would be if I had
a 160m vertical 65 feet closer to the water?
Kenny has direct experience with this -- he was part of N6BT's Project
Vertical contest expeditions. And you probably know
On 12/29/2022 5:44 PM, Boye Christensen via Topband wrote:
but the correct way will be in both ends !
Not necessarily -- I would choke all wires attached to the main unit.
It's the most likely culprit.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband -
Yep. I have 8.5 acres, and it was tricky finding suitable locations for
a pair of full-wave reversible 160M Beverages oriented to EU/VK and
SA/JA. Feedpoints and terminations of both are at limits of my property,
and the EU/VK Beverage terminates on my neighbor's property, installed
there 15
On 12/23/2022 8:12 PM, n...@comcast.net wrote:
I missed the second question.
I understand Wes's point quite well. I have friends who operate 6M from
very remote places where there is no local noise to light up rare grids.
They're rare because no one lives there to create noise.
The vast
On 12/20/2022 4:25 AM, n...@comcast.net wrote:
The assumption that "next to the water" is the same as "in the water" , is a
not right. It is not the same !
In this discussion, it's important to realize that the earth, salt
water, and radials, serve two functions. Soil in all its forms is a
Observed here mid-evening during the Stew, have no idea what it was, but
pretty strong, 70 miles S of San Francisco. It was continuous, some form
of FM. Not like any RFI I've heard.
73, Jim K9YC
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Rick,
If it's impulse noise, or acts like it at VHF, I chase it with the
VHF/UHF mobile rig and talkie that also have wide-band RX. I've
programmed memories both in rigs for AM on 160 MHz, and 3-4 frequencies
stepping above that up to around 550 MHz. I drive around listening to
160 MHz, then
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