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World Radio TV Handbook 2008 is out.
Order yours from
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THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed
and/or modified under the conditions set down in the Design Science License
published by Michael Stutz at http://dsl.org/copyleft/dsl.txt

Today's Topics:

   1. CHEZ 106 is having transmitter power (aurel chiochiu)
   2. qsl now mine and other stations heard (Robbie j.)
   3. RES:  SW brasilian radio stations DXCPR -  Clarification
      (Sarmento Campos)
   4. Log ([EMAIL PROTECTED])
   5. log ([EMAIL PROTECTED])
   6. Glenn Hauser logs June 9-10, 2008 (Glenn Hauser)
   7. Re: Dxers Unlimited?s mid week edition for 10-11 June 2008
      (Prof. Arnaldo Coro Antich)
   8. New Perseus Databases 09062008 (Willi Passmann)
   9. Re: New Perseus Databases 09062008 (bclnews.it)
  10. Logs clandestinas (JOSE MIGUEL ROMERO ROMERO)
  11. EMR Relay this weekend on 6140 khz (Tom Taylor)
  12. HCDX logs between 2008-06-10 0000 UTC and 2008-06-11 0000 UTC
      (Risto Kotalampi)


----------------------------------------------------------------------

Message: 1
Date: Tue, 10 Jun 2008 01:05:11 -0400
From: aurel chiochiu <[EMAIL PROTECTED]>
Subject: [HCDX] CHEZ 106 is having transmitter power
To: [email protected]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=iso-8859-1

Helllo to all of you !

While DXing CHEZ 106, Ottawa's classic rock at 103 miles from Montral, the 
station dropped from an excellent level to a barely listenable level... All th 
eother Ottawans (ex. 106.9) are still almost excellent in full stereo. Anyone 
is aware of what's happening with this former powerhouse ?

May the good DX be with you !
Bogdan


------------------------------

Message: 2
Date: Mon, 9 Jun 2008 10:17:18 -0700 (PDT)
From: "Robbie j." <[EMAIL PROTECTED]>
Subject: [HCDX] qsl now mine and other stations heard
To: [email protected]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii

hey All, Last  week I got another qsl from WHR.(whri) It was their 20 years 
card.(I also have the 15 year card) Maybe I should send in a report only every 
5 years?(ha,ha) In the last few nights I got: 
 7.240 DW from Germony good sig. with news
 9.481 voice of Russia good sig. with news and views program
 9.608 radio New Zealand fair with news and weather 
also heard what sounds like sat. signals or other very fast data on 9.119 usb 
9.086 cw and 9.082.5 usb at 22:41 last night! Hope all are having as much fun 
as I with dx right now. Good dx to all, Robbie in Wyoming(where 6 meters opened 
up the other night as well)
  


      


------------------------------

Message: 3
Date: Sun, 8 Jun 2008 09:02:26 -0300
From: "Sarmento Campos" <[EMAIL PROTECTED]>
Subject: [HCDX] RES:  SW brasilian radio stations DXCPR -
        Clarification
To: <[email protected]>
Message-ID:
        <!&[EMAIL PROTECTED]>
        
Content-Type: text/plain;       charset="iso-8859-1"


Greeting from Brazil,

I would like to apologize to everybody for this nonsense discussion, because
it's not a common issue in our country. 

Longtime Brazilian dxers are known to be very qualified in this matter and
we are not focused on feeding such situation as described here, it's worth
nothing.

I am one of the coordinators of DXCB, I work in its core aiming to push hard
the hobby in our country, and not to spread all over the world such mess,
so, 

I would like to apologize again reassuring that it is not the Brazilian way
to make things happen, and I?m sure Rocco Cotroneo will agree with me. We
have been working together a long time ago in an old fashion way as our
hobby demand, and it's working since them.

I will not come up with this issue anymore, but I would like to remind, that
the timestamp file of DXCB MW list is unchanged since its announcement. Just
download it and check it.

When coming to Brazil, please feel free to send us an email and let's make
dxcamps together and exchange information, meeting our hospitality.

Best Regards,

Sarmento Campos - [EMAIL PROTECTED] 
Rio de Janeiro
BRAZIL
http://radioescuta.aminharadio.com



-----Mensagem original-----
De: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Em nome de Marcelo Bedene
Enviada em: quinta-feira, 5 de junho de 2008 16:47
Para: [email protected]
Assunto: [HCDX] SW brasilian radio stations DXCPR - Clarification

would like to clarify some things:

In first place, to say that all is a great lie in this discussion.

The list that the Rocco corrected was a sweeping, all old fashioned and full

one of inaccuracies.

Desire that you know that I let participate exactly in the DXCB, by the 
incompetence of the directive cupola, mainly of Mr. Rocco that published a 
list that updated every 3  years. Towards long time I insisted so that the 
list was updated but assiduously and never they took care of my request.
proposed a new project for the DXCB in mayo/2007 (this list that we are 
using was the one that we sent to them) and did not accept, mainly Mr. Rocco

that was scared to lose the paternity of the list. I proposed to them then, 
to work together and they did not accept either. It was there that I 
separated completely of group DXCB and we created the DXCPR 
www.dxclube.com.br and a new list, in new format and updated day to day. 
After all, that is the reason of a list, to maintain updated information. 
Therefore, an update every 3  years does not have sense.
In the DXCPR we have some collaborators who send the information to us of 
several regions of all the country, but the greater work I do, spending 
money in telephone calls for the transmitters, consulting with the people in

charge of the transmitters in all Brazil. I like much to do this; I am a 
lover of the OM.
We have a list with many members and about 300 posts per month 
http://br.groups.yahoo.com/group/dxclube/
It is enough with crossing posts, to verify the hundreds of updates that I 
already did, sending the list for different forums anywhere in the world. 
Clear that this it is an enormous country, of continental dimensions and 
always it will be possible to find some error in the list.
I recently download a copy of the list published by  DXCB and I noticed that

now he is exactly equal to my list with minimum errors to my favor. They are

taking advantage of the spreading my updates and simply, correcting the list

of them. Simply ridiculous.
I only know that they are dying of jealousy, by the good repercussion that 
we are having. The list that we published is reliable, and it is already 
reference anywhere in the world, thanks to serious and responsible a work 
that we do here.
I also say to them that the DXCPR is not a club of a man only, the 
difference is in which here single we have voluntary collaborators and we 
did not receive anything to participate, is a work in favor of the DX and 
nothing else, then, a mini foundation in that accusation of plagiarism does 
not exist. One is the continuity of a work that badly was directed and that 
is a serious defect of the DXCB, if you enter there with new ideas, they do 
not admit it, it is necessary to be in everything in agreement with them.
It was by that reason that I moved away of them, to be able to make a work 
of quality

73

MARCELO VILELA BEDENE
CURITIBA-PR-BRASIL
PX5G6444 (Off-Road)
[EMAIL PROTECTED]
[EMAIL PROTECTED]
DX CLUBE DO PARAN? (DXCPR)
http://www.dxclube.com.br
MSN: [EMAIL PROTECTED]
SKYPE:mbedene4404
http://www.flickr.com/photos/mbedene/sets/



----- Original Message ----- 
From: "Willi Passmann" <>
To: "Rocco Cotroneo" <>
Cc: "HCDX" <>
Sent: Thursday, June 05, 2008 8:53 AM
Subject: Re: [HCDX] New Perseus Databases


> Hi Rocco,
>
> thanks for your mail which gave new information to me. However, I think 
> this is a matter that should be discussed between you and Marcelo Bedene. 
> I do not claim any rights regarding the content of the lists collected in 
> the Perseus Databases. I see my task in combining frequency lists (of 
> course with permission of the publisher), and to add functions like 
> displaying sunrise / sunset times and distance, as well as receiver 
> operation for the Perseus.
>
> As I did not know any background of the DXCB - DXCP issue until now, I do 
> not feel well prepared for any final judgement. When I downloaded your 
> list some minutes ago (Link 1 gives a 404-error, btw) I noticed that the 
> list is from 2007 and does not contain any coordinates which are essential

> for the above mentioned calculations.
> But I offer to add your list to the Perseus Databases. Just send an Excel 
> file to me and much more DXers will be able to take notice of your work. 
> Let them decide what list they prefer.
> What do you think?
>
> vy 73
> Willi
>
>
> Rocco Cotroneo schrieb:
>>
>>
>> On Wed, Jun 4, 2008 at 10:33 AM, Willi Passmann >> wrote:
>>
>>     Hello all,
>>
>>     a new version of the Perseus databases is available at
>>     http://www.4shared.com/dir/5567845/166a39bd/sharing.html
>>
>> Willi
>>   just to inform you that Bedene's list (DXCP is a sort of one-man club) 
>> is basically a Excel copy of the Brazilian Medium Wave list which has 
>> been edited for years by the Dx Clube do Brasil, with a few more bells 
>> and whistles.
>>   Our list - used and acknowledged by hundreds of Mw dxers around the 
>> world - is now at its Fourth edition. 
>> http://www.ondascurtas.com/listasemissorasmw.asp
>>
>> I understand that Bedene's list is suitable for your software purpose. I 
>> just wanted to let you know how his work has been done without giving any

>> credit to probably over 90 per cent of his entries, and dozens of our 
>> collaborators in the past eight years.
>>
>> Rocco Cotroneo
>> Dx Clube do Brasil
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------------------------------

Message: 4
Date: Tue, 10 Jun 2008 00:46:35 +0100
From: <[EMAIL PROTECTED]>
Subject: [HCDX] Log
To: "Shortwaveworld Shortwaveworld Shortwaveworld"
        <[EMAIL PROTECTED]>, "Robert Wilkner"
        <[EMAIL PROTECTED]>,    "Logs DSWCI Logs DSWCI Logs DSWCI"
        <[EMAIL PROTECTED]>,    <[email protected]>,
        <[EMAIL PROTECTED]>,    <[EMAIL PROTECTED]>, "Anker
        Petersen" <[EMAIL PROTECTED]>,  <[EMAIL PROTECTED]>,
        <[EMAIL PROTECTED]>,    "worlddx" <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
        reply-type=original

Russia, 7125, RadioKompaniya, Golos Rossii, 2345-0005  Prior to the hour, 
heard
steady Pop music with no comments.   On the hour, canned ID by male, "Radio 
Kompaniya".
This was followed with news presented by a female in Russian language.  My 
references say
this is a relay via Moldova.  The signal was good. (Chuck Bolland, June 9, 
2008)

Sao Tome (?), 7135, Voice of America, 0005-0031  Noted a steady stream of 
news
and features in Middle Eastern Language.  Some break aways to news worthy 
spots
in English.  Heard an ID as "V O A dot com".   Lots of splatter while signal
was poor.  (Chuck Bolland, June 10, 2008)

Clewiston, Florida
NRD545








------------------------------

Message: 5
Date: Tue, 10 Jun 2008 09:40:35 +0100
From: <[EMAIL PROTECTED]>
Subject: [HCDX] log
To: "Shortwaveworld Shortwaveworld Shortwaveworld"
        <[EMAIL PROTECTED]>, "Robert Wilkner"
        <[EMAIL PROTECTED]>,    "Logs DSWCI Logs DSWCI Logs DSWCI"
        <[EMAIL PROTECTED]>,    <[email protected]>,
        <[EMAIL PROTECTED]>,    <[EMAIL PROTECTED]>, "Anker
        Petersen" <[EMAIL PROTECTED]>,  <[EMAIL PROTECTED]>,
        <[EMAIL PROTECTED]>,    "worlddx" <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
        reply-type=original

United States, 6100, WHRI, 0845-0901+, Steady Spanish languague music mostly
concerned with Cuba and Cubans.  Noted an ID on the hour (0900 UTC) as:
"This is World Harvest Radio  International, the ... broadcasting company.
Broadcasting from Cypress Creek, South Carolina in the United States of
America.  Visit our web site at WHRI.org ..." in English.   After the ID,
back to music. Signal was good.   This is turning into a regular. (Chuck 
Bolland, June 10, 2008)

Indonesia, 4605, RRI Serui, 0924-0935  Noted a male in Indo language 
comments for
a moment or two, then into music.  The music continues beyond the half hour 
without
any comments.  Signal was poor.  (Chuck Bolland, June 10, 2008)

Clewiston, Florida
NRD545



------------------------------

Message: 6
Date: Tue, 10 Jun 2008 08:02:33 -0700 (PDT)
From: Glenn Hauser <[EMAIL PROTECTED]>
Subject: [HCDX] Glenn Hauser logs June 9-10, 2008
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii

** CHINA. Not much Firedrake above 12 MHz audible June 10 at 1308, but weakly 
in on 14410 against Sound of Hope; none found within the 20m hamband (Glenn 
Hauser, OK, DX LISTENING DIGEST) See also TIBET [non]

** CUBA. RHC once again with nothing but open carrier on 11760, while 9550, 
11805, 12000, 13680, 13760, 15370 were funxioning normally in Spanish, 1436 
June 9 (Glenn Hauser, OK, DX LISTENING DIGEST)

** INDONESIA [and non]. VOI, 9526, June 9 at 1438 making big het with CRI in 
Russian toward NAm on 9525 (Glenn Hauser, OK, DX LISTENING DIGEST)

** KOREA NORTH. 13650, June 10 at 1306 choral music in DPRK style, 1307 talk in 
Chinese, so quite sure it is VOK as scheduled, 238 degrees from Kujang per 
Aoki; altho that also shows CRI itself in Chinese via Urumqi, 270 degrees 
(Glenn Hauser, OK, DX LISTENING DIGEST)

** KOREA NORTH [and non]. 9940 with strong open carrier June 10 at 1252; 1259 
pulse jamming becomes audible before 1300 start of North Korea Reform Radio, 
via Taiwan, with Carmen theme, Korean talk (Glenn Hauser, OK, DX LISTENING 
DIGEST)

** NETHERLANDS [non]. June 9 was the first day of special RNW broadcasts of 
``the national team`` -- I guess playing some silly ballgame, never revealed 
what in the DXLD 8-068 item from Media Network! Tuned in 17765 at 1842 when my 
ear was caught by a big signal on a normally clear frequency as a crowd were 
singing the Netherlands national anthem, 1843 into announcement in Dutch. 17765 
is Guiana French at 300 degrees toward us. Still going at 2033 check when I 
also tried 15650, very weak from Issoudun, France southwards, and I could not 
even tell if WBCQ was on the 15420 air, the frequency RNW first planned to use. 
Next date for all this, whatever it is: June 13 (Glenn Hauser, OK, DX LISTENING 
DIGEST)

** OKLAHOMA [and non]. WWLS 640 IBOC was off when checked June 9 at 1857, 
clearing 650, and mostly clear 630 which also gets it from much weaker here 
KMKI 620 in The Metroplex. It`s also been sporadic around KTOK 1000, but was 
running at this time, and also audible around KFAQ 1170 Tulsa (Glenn Hauser, DX 
LISTENING DIGEST)

** TAIWAN [and non]. 11560, June 10 at 1258 with Hail Marys from WEWN, fast SAH 
from another station under, which per Aoki is Family Radio via Hu Wei, Taiwan, 
in English, 100 kW, 285 degrees. Catholix vs Protestants! (Glenn Hauser, OK, DX 
LISTENING DIGEST)

** TIBET [non]. 11775 with Firedrake making 4 Hz SAH over Defunct Gene Scott, 
Anguilla, June 10 at 1302, but no trace of its real target: AIR Tibetan via 
Goa, 1215-1330, 250 kW at 25 degrees, per Aoki (Glenn Hauser, OK, DX LISTENING 
DIGEST)

** U S A. Perhaps WHRI has started running Angel 6, 11785 on its entire 
schedule instead of with large gaps on weekday mornings: anyway, Monday June 9 
it was on with gospel rock at 1436, bad news for Firedrake.

But WHRI missing from scheduled 11785 again, June 10 at 1301 and 1439 checks. 
At 1301, Firedrake and VOA Chinese via Thailand were dominating (Glenn Hauser, 
OK, DX LISTENING DIGEST)

UNIDENTIFIED. The mysterious never-IDing Cuban music tests heard June 5, 6 and 
7 at 16-19 on 15460, 19-22 on 17660, were gone at several chex June 8 and 9. 
Meanwhile, Chuck Bolland in FL heard the same music in the before and after 
1100 June 9 hour on 6100, IDing as WHRI. Around 1840 June 9 I scanned all the 
bands but found no replacement for 15460; however at 2020 I was able to detect 
lite residual jamming on 17660, while Cuba`s Venezuela relay on 17705 had a 
good signal. When the music tests were on, I could never hear jamming under 
17660. I hope people will tune around at all hours on all bands and see if they 
can find more such Cuban music tests.

Cuban music test via WHRI 6100: June 10 at 1016 heard Cuban music in same style 
as previously on 15460, 17660 in the daytime, which never had any IDs or 
announcements, but not identical selexions, not Guantanamera at 1020. Jamming 
clearly audible mixing. Recheck at 1059 with WHRI ID and more music. Per Chuck 
Bolland`s monitoring, 6100 is doing this from before 0900, so it probably runs 
0800-1200 at least. WHR online schedules do not have anything about this, with 
Angels 1, 2 and 6 all shown on other frequencies with other programming during 
this period (Glenn Hauser, OK, DX LISTENING DIGEST) ###


      


------------------------------

Message: 7
Date: Tue, 10 Jun 2008 09:05:56 -0400
From: "Prof. Arnaldo Coro Antich" <[EMAIL PROTECTED]>
Subject: Re: [HCDX] Dxers Unlimited?s mid week edition for 10-11 June
        2008
To: [EMAIL PROTECTED], HCDX <[email protected]>,
        [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=windows-1252; format=flowed

Radio Havana Cuba
Dxers Unlimited
Dxers Unlimited?s mid week edition for 10-11 June 2008
By Arnie Coro
Radio amateur CO2KK

Hi amigos radioaficionados around the world and in space? I am Arnie 
Coro,radio amateur CO2KK, your host here at RHC?s twice weekly radio 
hobby program. Now here is item one: Extremely low solar activity 
continues, with the effective sunspot number reaching just 2 units 
during the Monday morning hours local time in Havana, that is from 11 to 
15 hours UTC. All the world?s ionospheric vertical incidence sounders 
are registering a very weak ionosphere, due to the very low free 
electrons count per cubic centimeter, that is the yardstick used by 
scientists to measure ionization. Maximum useable frequencies at the 
peak times are not exceeding more than 25 megaHertz, and then this is 
happening for very short periods of time. So, if you happen to pick up 
DX signals on frequencies above 25 megaHertz, you can be sure that they 
are reaching you via the Sporadic E clouds that are typical of this time 
of the year and that have nothing to do with solar activity. Item two: 
 From time to time the world receives news about a sensational new 
antenna system ? it happens over and over, only to end up to be yet 
another scam to funnel money into the pockets of bandits, or in the best 
case, the claims for the ultra miniature antennas with the efficiency of 
a huge rhombic or curtain array may come from someone that , although 
honest may be absolutely ignorant of electromagnetic wave theory? This 
seems to be the case with a Swiss invention, quote , unquote on the word 
invention, that goes under the name of the ROOMCAP antenna, whose 
inventor claims that the 1.5 meters long piece of metal and a coil is 
capable of replacing a full size half wave dipole antenna on the lower 
frequency amateur bands. The inventor, again quote, unquote on the word 
inventor, refuses to provide information about his antenna, and is 
requesting one hundred dollars to be paid to him for a compact disc with 
the instructions on how to build his ROOMCAP magic antenna? Recently he 
posted yet another message on one of the popular antenna e-mail lists , 
asking list members to visit a web site where he is showing the latest 
test of his antenna , something I did at once, only to find that the 
antenna test is a comparison between a two wavelengths horizontal loop 
and the very short
1.5 meters long ROOMCAP placed on the roof of a small car?
And amigos, that is like comparing apples and oranges, because the Swiss 
inventor is ignoring the standard procedure to field
Test HF antennas that calls for installing not one but two reference 
antenna systems, a quarter wave vertical monopole over a ground screen 
of 120 quarter wave radials, and a vertical half wave dipole, with the 
lower branch of the dipole at a quarter wavelength above the ground, and 
fed with a transmission line that must leave the center of the elevated 
vertical dipole at a 90 degrees angle ?
So amigos, be aware that false claims about small HF antenna?s 
performance are constantly appearing , especially now that it is so easy 
to create a website and fill it with what best could be described as 
rubbish?
More radio hobby related items coming up in a few seconds when the mid 
week edition of Dxers Unlimited continues in just a few seconds? I am 
Arnie Coro in Havana?
??????..

Si amigos, you are listening to Radio Havana Cuba?s Dxers Unlimited 
radio hobby program and now here is item three of
today?s program, our technical topics section that will be dealing a bit 
more about simple homebrew radios, the ones that you can show with pride 
to family and friends while bringing in loud and clear several of the 
world?s international broadcast stations.
I remember a few years ago , when a friend visited my shack and left 
with a small plastic bag full of electronic components and two circuit 
diagrams that I had drawn for him. Two days later he calls me on the 
phone and says? Coro, listen to this, and sure, I was able to hear our 
own Spanish language program over the phone line? Amigo Carlos then said 
that what I was hearing was coming out of the radio he had just 
completed to build following the first of the two circuit diagrams he 
had taken home . That radio receiver was picking up our 12000 kiloHertz 
transmission from the Bauta transmitting center with just a one meter 
long wire antenna attached to it. Carlos then told me that the 
regeneration control was working very smoothly and that he was able to 
pick a popular amateur radio morning round table on 40 meters by 
advancing the regeneration control until the single side band signals 
were received clearly. Now listen to this: the circuit diagram of that 
radio uses just four active devices, draws very little current from the 
power supply and can be built into a very small box. The three 
transistors used are common NPN type signal devices that Carlos recycled 
from a TV set, and the integrated circuit audio amplifier was the LM380 
IC I gave him.
Carlos told me that he had wound several coils, and that so far he was 
able to pick up stations from the low end of the AM broadcast band up to 
the 19 meters or 15 megaHertz international short wave broadcast band. 
He then asked about the possibility of switching the coils , so I 
started to look into my parts bins to see if I could find a dual pole 
three, four or five positions wafer switch, and fortunately my search 
was rewarded with the finding of a very nice looking ceramic wafer 
switch, two poles and five positions that Carlos has already put to good 
use in a second radio he has built?He has left the first experimental 
receiver that was mounted on a small piece of half inch plywood, as a 
demonstration project to be taken to our next radio club meeting, as 
there are many other club members interested in home brewing simple 
receivers? Carlos and I talked about the tools that he had used to build 
the two radios, and he said all he needed to homebrew the radios where a 
30 Watts soldering iron, a set of long nose pliers, a side cutter plier 
and a small screwdrivers set, plus his digital multi meter . Carlos 
knows how to identify the different electronic components very well, and 
he also is good at following a circuit diagram, two very important 
elements that are essential requirements if you want to start 
homebrewing radios.
Si amigos, yes my friends, oui mes amis, developing your skills to 
homebrew radio equipment is one of the 84 ways of enjoying this 
wonderful hobby , yours and mine: RADIO?
?..
QSL on the air, YES, QSL on the air to Dxers Unlimited?s listeners that 
have requested the Polyakov simple short wave
Receiver circuit diagram? I now have ready here a small text file with 
more information about that very simple circuit , that uses just two 
signal diodes , a transistor injection oscillator and a two transistors 
audio amplifier ? Of course amigo Kevin that you can add an integrated 
circuit audio amplifier following the two transistors of the receiver?s 
audio stage, and that will bring up the set?s volume to room filling 
levels? But, you will need more current from the power supply, so the 
batteries will last much less than when they are feeding just the three 
transistors of the original receiver design. Answering amigo Edward from 
the UK, I must emphasize that the Polyakov detector is not your best 
option for listening to AM stations , because you must keep the 
frequency of the injection oscillator within just a few cycles per 
second from the AM station?s carrier frequency or otherwise your audio 
will show a sort of growling sound that is very annoying. Do remember 
that the Polyakov detector requires that the local injection oscillator 
operates at half the receiver?s frequency , something that is very 
useful as it is easier to make oscillators more stable when they operate 
on lower frequencies. As a matter of factI have used the Polyakov 
antiparallel diodes mixer,that by the way is the correct name of the 
circuit, to down convert a 2 point two GigaHertz signal to a 144 
megaHertz IF, and it worked very well also in this particular 
application. When used as a product detector you actually have two main 
frequencies at the output, and one of them is, of course, the audio from 
the station you want to hear !!!. As compared with a four diode double 
balanced product detector, the Polyakov twin antiparallel diodes product 
detector has several advantages, and one of them is the fact that the 
injection oscillator frequency is operated at half of the signal 
frequency?For those of you that have not yet sent a request for the dot 
pdf file of the ultra simple 40 meters amateur band Polyakov detector 
receiver, let me remind that the e-mail address to send your request to 
is [EMAIL PROTECTED], again slowly and using the phonetic alphabet? 
[EMAIL PROTECTED] It is a very small size computer file that is sent as 
an e-mail attachment, as a matter of fact it is only 32 kilobytes of 
data so it will be downloaded just after pushing the download key of 
your computer.
?????.
Just to complete the information about the easy to homebrew Polyakov 
detector receiver for the amateur bands, let me add that a 30 meters 
band version requires the use of a five megaHertz variable frequency 
oscillator, that at the same time provides an excellent calibration 
mark, because you only need to zero beat the five megaHertz injection 
oscillator to any time and frequency standard station that uses this 
frequency or also 10, 15 and 20 megaHertz. The amateur 30 meters band 
starts at 10.1 megaHertz and it is a digital modes only ham band, in 
other words you won?t hear any phone stations from 10.1 to 10.150 
megaHertz, or at least you should not hear any voice signals there, 
although from time to time illegal stations do use that range of 
frequencies for their outlaw activities? The ultra simple receiver uses 
a one transistor variable frequency injection oscillator, but a more 
sophisticated , and of course more complicated version uses a classic 
three transistors VFO or variable frequency oscillator, that is made of 
a Colp?tts oscillator stage, followed by a two transistors buffer for 
optimum isolation. Using a field effect transistor for the oscillator 
stage increases both long term stability and makes the circuit less 
sensitive to small voltage and temperature variations, because the FET 
or field effect transistors are high impedance devices that provide much 
better performance than bipolar transistors when used in oscillator 
circuits.
????

ASK ARNIE , si ASK ARNIE, yes ASK ARNIE is the most popular section of 
this program, and Dxers Unlimited listeners from all around the world 
send their questions that when answered here have made possible for many 
other listeners to learn more about radio and solve some practical 
problems too. Today?s question sent by Jonathan from Lagos in Nigeria is 
typical of type of request I get here every day, Jonathan wants to know 
what would be the best amateur band or bands to set up at his soon to be 
on the air ham radio station, and he adds, Arnie , of course that I am 
looking for your answer regarding the relation between the present phase 
of the solar cycles and what may be or may not be worthwhile . Well 
amigo Jonathan, the two solar cycles are now in what is the beginning of 
an overlap period that may extend for a period even as long as a year, 
and solar activity is going to remain within effective sunspot numbers 
that won?t go higher than 20 units? Under such circumstances, my advice 
is that whatever resources you are going to invest on your ham radio 
station, should go to antenna systems from 160 meters to 20 meters, with 
perhaps a very simple wire antenna added for operation on the bands from 
17 meters to 10 meters. You will find that most of the time , at this 
phase of the solar cycles, frequencies above 18 megaHertz will simply 
won?t propagate trough the ionosphere? But, from time to time, as for 
example during the summer months you may hear some activity on 12 and 10 
meters via sporadic E skip?. Amigo Jonathan , if your budget is limited 
try installing a 40 meters band half wave dipole as high and as in the 
clear as possible, and add to it a pair of twenty meters band elements, 
so that you will end up with an effective three bands antenna? The 40 
meters band dipole, the 20 meters band dipole that are both half 
wavelength resonant antennas and then your 40 meters band antenna will 
also perform quite nicely as a three half waves center fed system on the 
15 meters band. If you are planning to use , as you explain in your 
e-mail a modern high tech solid state transceiver with a built in 
automatic antenna tuner, feeding the above mentioned antenna with 50 
ohms coaxial cable via a one to one balun will allow you to enjoy 
amateur radio during the next two years or so, and allow enough time for 
the future installation of a rotatable multiband Yagi antenna that will 
provide optimum performance during the peak years of the new solar cycle.
And now as always at the end of the show here is Arnie Coro?s Dxers 
Unlimited?s HF plus low band VHF propagation update and forecast? Very 
low solar activity, just one sunspot active region in sight, a lot of 
sporadic E skip all over the northern hemisphere, including great 
double, triple and even four hops propagation events? See you next 
Saturday and Sunday UTC days at the weekend edition of the program 
amigos? !!!




------------------------------

Message: 8
Date: Tue, 10 Jun 2008 19:10:58 +0200
From: Willi Passmann <[EMAIL PROTECTED]>
Subject: [HCDX] New Perseus Databases 09062008
To: HCDX <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-15; format=flowed

Hello all,

a new version of the Perseus databases is available at
http://www.4shared.com/dir/5567845/166a39bd/sharing.html

Included are the following updates:

Niven 09062008
DXCP 02062008


vy 73
Willi, DJ6JZ

http://www.radio-portal.org/sdr.html
SDR-Special



------------------------------

Message: 9
Date: Tue, 10 Jun 2008 19:39:07 +0200
From: "bclnews.it" <[EMAIL PROTECTED]>
Subject: Re: [HCDX] New Perseus Databases 09062008
To: "[email protected]" <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
        reply-type=response

> a new version of the Perseus databases is available 

Great work!


------------------------------

Message: 10
Date: Tue, 10 Jun 2008 17:58:00 +0000 (GMT)
From: JOSE MIGUEL ROMERO ROMERO <[EMAIL PROTECTED]>
Subject: [HCDX] Logs clandestinas
To: Frecuencia DX <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=iso-8859-1

   Saludos cordiales.

Clandestinas

ALEMANIA 11640 Radio Xoriyo Oganenia, 16:54-16:58, escuchada el 10 de junio en 
somal? a locutor con entrevista a invitada con referencias a Somalia, corte 
abrupto de la emisi?n sin terminar el programa, SINPO 45444

13830 Voice of Oromo Liberati?n, 17:00-17:03, escuchada el 10 de junio en 
idioma oromo, sinton?a y locutor con presentaci?n e identificaci?n, locutora 
con comentarios, referencias a oromo, a las 17:01 inicia se?al jammer, SINPO 
43443.

REINO UNIDO 12035 SW Radio ?frica, 17:10-17:13, escuchada el 10 de junio en 
ingl?s a locutor con comentarios y entrevista a invitada, SINPO 24342

RUSIA 12120 Radio Democracy Shorayee, 17:04-17:09, escuchada el 10 de junio en 
idioma farsi a locutor y locutora con comentarios, referencias a Ir?n y Rusia, 
SINPO 35443


Jos? Miguel Romero
Burjasot (Valencia)
Espa?a

Sangean ATS 909
Antena Radio Master



      ______________________________________________ 
Enviado desde Correo Yahoo! La bandeja de entrada m?s inteligente.



------------------------------

Message: 11
Date: Tue, 10 Jun 2008 22:00:35 +0100
From: "Tom Taylor" <[EMAIL PROTECTED]>
Subject: [HCDX] EMR Relay this weekend on 6140 khz
To: "Tom Taylor" <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain;       charset="us-ascii"

EMR Relay this weekend on 6140 khz

 

Date  15th of June 2008

At      1159 to 1259 utc (Broadcasting time changed by T-Systems)

On     6140 khz  (100 kw from Wertachtal in Germany)

 

Sunday 15th of June & Monday via the Internet at www.emr.org.uk
<http://www.emr.org.uk/> 

 

May & june Programme repeats via the Internet:

11.00 to 11.30 utc -- May  Programme 

11.59 to 12.59 utc -- June Programme and 6140 khz

15.00 to 15.30 utc -- May  Programme 

16.00 to 17.00 utc -- June Programme

19.00 to 19.30 utc -- May  Programme 

20.00 to 21.00 utc -- June Programme

 

Email EMR this Sunday at:  [EMAIL PROTECTED]

 

Good Listening  73s Tom

 

 



------------------------------

Message: 12
Date: Tue, 10 Jun 2008 23:05:01 +0000
From: Risto Kotalampi <[EMAIL PROTECTED]>
Subject: [HCDX] HCDX logs between 2008-06-10 0000 UTC and 2008-06-11
        0000 UTC
To: [email protected]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii

Hard-Core-DX.com logs from 2008-06-10 0000 UTC to 2008-06-11 0000 UTC
---------------------------------------------------------------------

Please visit http://log.hard-core-dx.com/ for the real time logs
and to submit your logs to the HCDX Online Log.




For more information please email [EMAIL PROTECTED]
-----------------------------------------------------


End of Hard-Core-DX Digest, Vol 66, Issue 13
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