July 28, 2014

F5IRO (Freddy)

The SWLing Post

Un blog intéressant dédié aux passionnés d'écoutes, avec des articles journaliers. lien

Posted at: July 28, 2014 05:54 AM

ça marche comment Internet ? (partie 3/3)

"Troisième et dernière partie de cette Question Technique abordant sous plusieurs aspects le réseau des réseaux. Intéressons-nous cette fois-ci à des notions très importantes telles que le peering ou la neutralité du Net..." suite

Posted at: July 28, 2014 05:54 AM

July 27, 2014

KA3DRR (Scot)

Dangerous Skies | Old Man And An Old Dog Pt. ii

Stranger In The Dust
Painful tears fell from her green eyes. The stranger in the dust fumbled with the door handle. She tried again with her left hand. It was not enough as she cradled her baby. The fury of wind, pebbles, and dust cut into her skin.

She pounded on the window when Bill remembered that the damn door was broken and only opened from the inside. Guthrie barked, too.

The cluster of tornadoes like plow shares moved through Pennington County. This one in particular located in Box Elder packed ferocious winds like those swirling at the North Pole of Saturn. Bill pushed Guthrie to the side and opened the broken door. He yelled above the fury, "Get in!"

The stranger with a baby who appeared out of maelstrom of dust and machinery jumped into the passenger seat and yelled at Bill, "Get us the frack out of here!"

Bill stomped on the Ford F150 accelerator when a blacksmith's anvil slammed into the side of the pickup. The blunt impact ripped steel skin leaving edges as sharp as a razor in the bed of the pick-up. She gripped the door's arm rest with her free hand and looked into the calm eye's of her child. Assurance amid the swirling ocean of nature's chaos.

Small rocks slammed into the windshield leaving spider web patterns in the glass. Bill turned to the stranger sitting in the passenger seat. Her face a mix of dust and tears. He shouted in a voice of calm above the fury of the tornado and thunks of rock striking against steel, "What's your name?"

She glanced at him for a moment, "Betty Sue."

"What about your baby," as Bill turned off the headlights now reflecting back at him through the dust out.

Betty Sue replied, "Joshua."

Drone Attack
A warning buzzer jolted Maxim indicating air-to-air missile lock. He red lined the pair of Rolls-Royce AE 1107C Liberty engines and punched the flare dispenser button. A white hot plume ejected from the belly of the Osprey aircraft. He pushed the joy stick forward and dove toward Easter Island.

Jacqueline squawked the intercom, "Drones!"

Maxim initiated electronic counter measures flooding multiple wavelengths with electromagnetic energy. It was a measure designed to confuse communication systems. He thought about the forward thinking Electrical Engineers at Launch Corporis of LAX in El Segundo, California.

Jacqueline observed her radar screen as lethal projectiles traveling near the speed of sound closed the gap. She felt weightless as Maxim's rapid angle of descent strained the Osprey's fuselage. The terrain of Easter Island filled the view outside the cockpit window.

He pulled upward on the joystick slamming Jacqueline into the back of her operator's chair. Maxim again cycled electronic counter measures then dispensed both chaff and flares. The frame of the aircraft groaned as he fought gravity for control.

The pair of engines delivered red line performance just like Maxim remembered over the mountains of Afghanistan.

One missile exploded in a super heated cloud of molten metal. Another chased chaff and exploded. Maxim banked left exposing the underside of the Osprey when the last exploded. Shrapnel tore into aluminum through hydraulic lines and electrical wiring.

Jacqueline pressed the push-to-talk button on her headset, "Land us on Easter Island."

Maxim dialed 14275 on the communication console, "Mayday. Mayday. Mayday."

Destination Badlands National Park
Bill knew the country roads between Rapid City and Badlands National Park. He spent the good years of his life on the gravel arteries slicing through millions of acres of ranch land. The interstate was too far away and the tornado with its cloud of heavy machinery cut them off.

He veered right to connect with a capillary road then looked at his fuel gauge. He had half a tank of gas. That's all he needed.

"We're going to the Badlands," Bill looked over his right shoulder at Betty Sue and little Joshua. She picked up his handheld transceiver and put it against her heart. The plastic communication equipment reminding her of Joshua's father, an Army radio operator, who died in service to his country.

Guthrie stared out what was once a windshield, this time, the old dog didn't bark.

To be continued...

73s from the shackadelic near the beach.

See Also
Dangerous Skies | Old Man and An Old Dog 

Posted at: July 27, 2014 10:04 PM

K2DSL (David)

Afghanistan Logged and Confirmed – TU T6T !!

I have seen T6T in Afghanistan (DXCC YA) on the cluster for a while but was either never able to hear him or not at the radio to even try. Well that changed today when I saw T6T spotted on 17m RTTY. I could just barely “print” him on and off for a few hours starting around 9AM ET (1300z) as I worked other stations and did some things around the house. About 2PM ET (1800z) I had a stronger copy on him and started sending my call again. It took a few shots but at 2:18PM ET (1818z) I was able to put T6T in the log!

The below RTTY copy might not look pretty but it looks fantastic to me. I’ve removed noise copied and kept the relevant exchange.

K2DSL: K2DSL K2DSL K2DSL K2DSL
T6T: KPWDS WXT 55'95K2DST
K2DSL: K2DSL K2DSL K2DSL K2DSL TU 599 599 K2DSL K2DSL
T6T: K2DSL EE T6 599 599 K2DS
K2DSL: TU 599 599 K2DSL TU TU
T6T: K2DSL DE T6T CFM TU 73! 

 

The QSO was made at 1818z and LoTW shows he uploaded his log and our QSL is confirmed at 1955z for a new DXCC confirmed.  Thank you Shuravi for working me from your station in Afghanistan with 100 watts (same as me) and a dipole on a bamboo mast.

73,
K2DSL

Posted at: July 27, 2014 10:02 PM

W2LJ (Larry)

FOBB 2014

I ended up staying home, working from the shack and forgoing my bumblebee number. The weather was partly a factor as one minute it was sunny and five minutes later it looked like it was going to downpour.

The real issue was my back. I woke up this morning with a stiff lower back. Nothing incapacitating, but sore enough that hiking to my FOBB destination while carrying all my gear, and then setting up would have been no fun. Added to that was the fact that my sore back has also slowed me down somewhat, so if I would have had to dismantle the station in a hurry, it would have been a problem.

Even from home, on the good antennas, band conditions seemed to stink. I didn't hear a lot of FOBB'ers, and those I did hear were pretty weak. Giving out a 559 was generous today. I managed to work 15 stations.

I sure hope band and weather conditions and my back are better for the Skeeter Hunt!

72 de Larry W2LJ
QRP - When you care to send the very least!

Posted at: July 27, 2014 10:17 PM

K2DSL (David)

2014 IOTA Contest – Good ones logged with Map!

Starting Saturday morning East Coast time in the US was the 24 hour IOTA contest where anyone can work anyone else, but it’s really best to work stations that have an IOTA associated with them as they are worth 15 pts vs 2 pts.  You can have an IOTA number if you’re on an island which might not seem as exotic as it might sound. Yes, there are islands such as Reunion Island or the South Cook Islands that come to mind, but Long Island counts as an island too.

The contest started out slow for me with few signals and those I heard were weak. I logged some Qs and then all of a sudden I could tell the noise was back that I experienced last week. I immediately got up and asked my neighbor if he just turned something on and he said he just opened the garage and put the lights on. I asked him to shut off the lights and the noise was gone – turn on the lights and the noise was back. They installed some high output T5 fluorescent lights in their new garage and they are noisy. With both on I get about a S5-S7 when I turn the antenna to them. With one disconnected as a test, the noise was 1/2 so it’s not one particular light that was the problem. We’ll have to figure out what to do but at least the source was identified.

I spent the day going back and forth to the radio working stations here and there. It remained pretty slow to mid afternoon when the signals got stronger and I could hear and contact more stations. It continued strong through the evening so I spent time at the radio. I worked SSB (phone) for most of the contest until I saw a station spotted on CW that I wanted to work so I did some CW too, putting me in the Low Power Single Operator Assisted Mixed Mode category. The spot I saw was for Dodecanese on 20m and I was able to work him.  I saw E51AND in South Cook Islands spotted on 20m at 10pm local time and it took me 2 straight hours to get him logged right at midnight local time. He had a huge pileup  but it started to thin out a bit as it got later in the evening.

After logging the E5-S station I took a quick listen and logged 2 ZLs and a VK station on 20m CW followed by FR4NT on Reunion Island who was coming in very strong on 20m SSB.  I was pretty tired so I exported my log from N1MM, loaded it into DXKeeper and sent it off to the contest robot, Clublog, eQSL and LoTW.  I already have the SV5 Dodecanese contact confirmed on LoTW.

It looks like I worked 46 different DXCCs including Dodecanese, South Cook Island, Reunion Island, Crete, Saudi Arabia, New Zealand & Australia.

Here’s a map of the contacts made in the IOTA contest using ADIF2Map (click to enlarge):

K2DSL_2014_IOTA

 
Here’s my N1MM score summary:

 Band  Mode  QSOs    Pts  IOTA
    7  CW       5     49     3
    7  LSB      2     30     2
   14  CW      23    241    13
   14  USB     86    807    29
   21  USB      6     77     4
Total  Both   122   1204    51

Score : 61,404

 

73 & Good DX,

K2DSL

Posted at: July 27, 2014 08:47 PM

G3XBM (Roger)

Second JT9-1 QSO today

This evening I worked my second station on JT9-1, again on 20m as 10m was dead when I listened. The station was DL1KCQ (475km) in JO22 square. He was running 10W to a vertical.  I was using 5W to my Par 10/20/40m end-fed.

I have still to try JT65 and JT9-1 on 10m as the band has not been open when I listened. 20m seems to be an ideal band as it is open pretty often. Although I heard some stateside stations on JT9-1,  none were worked or indeed called. So far 4 JT65 QSOs and 2 JT09-1 QSOs in the log since yesterday.

Anyone know the recommended JT65 and JT9-1 preferred operating frequencies on 40m?  7.076 and 7.078MHz?

A real advantage of JT9-1 is it only occupies just over 16Hz of bandwidth whereas JT65 is about 10 times this bandwidth.  JT9-1 is really only suited to lower HF, MF and LF bands as the tone separation is very small and HF Doppler and rig drift can play havoc.

Posted at: July 27, 2014 09:23 PM

EA1CS

FO/K8PGJ, Polinesia francesa

Estaré en el InterContinental Bora Bora Resort desde el 15 al 24 de febrero 2015. Voy a estar en Over the Water Villa. Tendré internet.

La operación será en modo holiday-style ya que voy a estar de vacaciones con mi esposa, publicaré un horario en QRZ para las horas de operación.

Voy a estar en el aire con un K3 y un kit de antenas, al menos 20 y 15 metros será con verticales que hacen casi todo el trabajo incluyendo SVDA si puedo encontrar la manera de llevarlas.

Qsl vía directa K8PGJ y LOTW.

73´s, Luis EA1CS

Posted at: July 27, 2014 08:46 PM

G3XBM (Roger)

KX3 antenna failure

I read on the M1KTA blog that an antenna lead on one of his Elecraft KX3 units has failed. I know these have seen some harsh portable field use but I would not have expected this.  I have owned an FT817 for close on 14 years and, touch wood, it has never once failed me - still the same PA, same everything.

In my view, the KX3 is overpriced (over here in the UK) and not well built for rugged field use. I don't doubt it has excellent features and an excellent receiver, but it is still over twice as much as an FT817ND which covers DC to blue light, out of the box ready built. The KX3 is a mess for leads, coming out all over the place. The FT817 is neat, rugged, and compact.

For me, the FT817 still wins.

Posted at: July 27, 2014 04:14 PM

First JT9-1 QSO this summer

Like David G0LRD, I think WSJT-X (latest version certainly) seems as easy to use as JT65-HF. What's more it supports JT9-1 as well as JT65.

I tried 10m, but soon QSYed down to 20m where there was activity. Managed to work an OE (Austria) on JT9-1 (easily), for my first JT9-1 QSO is some while, running 5W from the FT817.   Just tuned to 14.078MHz and clicked away with WSJT-X.  Must try again on 10m and 6m.  JT65 is at 14.076 and 28.076MHz. USB dial.  JT9-1 is 2kHz higher. On the FT817mI use the DIG setting.

On 6m, I suspect my rig will not be stable enough for JT9-1. It should be fine for JT65.

Posted at: July 27, 2014 04:07 PM

EA1CS

OH2BH y N7NG en el proyecto VK0EK


Para mi es una gran noticia, un buen proyecto debe tener a los mejores a la cabeza Martti y Wayne  ocupan junto con otros esa posición, esperemos que les dejen maniobrar con libertad....... en relación a la noticia VK0EK Team comenta con fecha de ayer sábado 26 julio 2014:

Nos complace anunciar que hemos llegado a un acuerdo informal con Wayne Mills, N7NG y Martti Laine, OH2BH para dirigir el equipo de radio de la isla Heard. Tendrán plena autoridad y responsabilidad para construir el equipo, y las personas relacionadoas con la comunicación con la comunidad DX, gestionar las operaciones de radio en la isla Heard, y otros asuntos relacionados con la parte de radio de la expedición. 

Los asuntos que conciernen a toda la expedición, tales como la seguridad, cronograma, buque, la logística, las comunicaciones, las instalaciones y las finanzas siguen siendo responsabilidad del Jefe de Expedición, Robert Schmieder. El acuerdo formal se formalizará en un futuro próximo, expecificando las diversas funciones y responsabilidades. Vamos a proporcionar más información a medida que avancemos en la planificación, mientras tanto os invitamos a dejar vuestros comentarios en nuestro blog .

73´s, Luis EA1CS

Posted at: July 27, 2014 12:32 PM

F5IRO (Freddy)

Tuner ANNECKE symétrique 200 watts

Peut-être ne connaissez-vous pas Alfred DJ6OO et pourtant cet OM décédé était à l'origine des fameux coupleurs d'antennes ANNECKE, aujourd'hui difficile à trouver ou alors à des prix relativement hauts. Au gré de différentes recherches et d'un peu de patience, j'ai pu rassembler pratiquement tous les modèles ayant été fabriqués en termes de documents ou photos. Aujourd'hui focus sur le plus

Posted at: July 27, 2014 11:57 AM

Marennes 2014 en images

Une série de photos pour illustrer le dernier salon de Marennes, merci à Francis F6BLP pour les clichés... à noter aussi les autres images de Philippe F5CYS à ce lien...

Posted at: July 27, 2014 11:50 AM

JTECH 195

Au sommaire cette semaine, votre maison connectée.

Posted at: July 27, 2014 11:50 AM

Japon: L'île soudainement apparue au sud de Tokyo continue de grossir

"L'île soudainement apparue en novembre dernier à un millier de kilomètres au sud de Tokyo continue de grossir, selon les images prises cette semaine par les autorités japonaises. Cette île, qui se présentait dans les premiers jours sous une forme à peu près ovale de 400 mètres de long sur 200 de large, a fini par rejoindre l'île inhabitée de Nishinoshima appartenant au petit archipel

Posted at: July 27, 2014 11:50 AM

G3XBM (Roger)

Continuing JT65/JT9 today

When we get back from shopping I shall return to JT65-HF and JT9-1 modes hoping to work more stations. Yesterday, staying on 20m, I worked 4 Europeans running 2.5 or 5W. JT65-HF is very intuitive and works well. Althought I have had JT9-1 QSOs on 10m in the past, I suspect the rig stability is "challenging" and JT65-HF gives me a better chance. JT65-HF is some 4dB worse than WSPR but the TX period is only 48 secs (1 minute TX period but actual TX is less) so may be better with QSB?  JT9-1 is a narrower bandwidth mode than JT65-HF and is about 2dB worse than WSPR. Of course, JT65 and JT9 are proper QSO modes.

Sunspot count today is 76 (decent) and 20-30MHz conditions are supposed to be "normal" so there could well be some F2 (as well as Es) on 10m today. JT65-HF and JT9-1 on 10m are calling I think.

The great advantage of WSPR is you can set the rig running and monitor things in another room. JT65 and JT9 seem to require "hands on" operation, which is fine.

Posted at: July 27, 2014 11:28 AM

AA7EE (Dave)

My $10 Fleamarket Find!

I usually roll out of bed anywhere between 6 and 7:30 in the morning, prompted by cats who want to be fed. The last couple of mornings, after feeding them, I have gone back to bed and napped for a few more hours. This is not normal for me, but probably has a lot to […]

Posted at: July 27, 2014 12:29 AM

July 26, 2014

G3XBM (Roger)

More JT65 QSOs

This evening I went on 20m JT65 again and managed a couple of European QSOs in reply to the CQs of others. I am using JT65-HF software that is very simple to use. So far I have used the FT817 at either 2.5 or 5W.
JT65-HF screenshot
If you see a station calling CQ (shows up in green) you just click on it to start a QSO with that station. If he copies you and replies then the started QSO shows up in red - all very simple. Wonder if there is a similar (easy) package for JT9-1 on HF?

Looking on PSK Reporter I see plenty of USA stations were copying me too, so it should not be too hard to work DX with just a little effort even with my compromise antenna. When 10m and 6m are open, DX should be easier still.

With JT65-HF and JT9-1,  I have to be in the shack, but at least there is no speaking, saving my poor voice.

Posted at: July 26, 2014 11:26 PM

EA7EU (Pedro)

Espectacular maniplex by I1QOD


Simplemente espectacular el último modelo que ha sacado al mercado y que se une al buen catálogo de manipuladores y Keys que Alberto tiene en el mercado todos ellos fabricados artesanalmente, pero con la máxima calidad posible.

Tiene un peso de unos 1,50Kg.

Tiene que ir como una moto... :-D

Link:http://www.i1qod.it/sideswiper.htm

Posted at: July 26, 2014 10:26 PM

W2LJ (Larry)

Battery problems and a solution


My Chinese Li Ion battery "ol' Blue" (upper right) has given up the ghost, much the same as Mike VE3WDM has written over at his blog.  In my case, the battery will not take a charge.  The output from the wall wart charger is perfect, but no matter how long it's connected to the battery, the battery itself will not charge.

I suspect either a faulty cell or perhaps a fault with the little regulator board that's inside the blue shrink wrap. So the decision had to be made.  Even though the price is relatively cheap, do I buy another Chinese battery or try something else? Do I go back to hauling around my small, but heavy, 5 Ah sealed lead acid battery?

I have a charger that will handle 18650 type Li Ion batteries, as these are what go into the tactical flashlights that I keep in my CERT pack and my radio "Go Pack".  So I figured that since I already have half of what I need, that I would go a different route this time.

I purchased a pack of 10 type 18650 batteries (upper left) from an American vendor.  The ones I bought are 3.7V and have a rating of 5300 mAh.  I also purchased two of the 4 cell holders that you see above. This gives me two 14.8V, 5300 mAh batteries. All I had to do was solder on the connector that goes directly into the KX3.

I tried them out today and they seem to work without any problems.  I will use a fresh charged pack tomorrow for FOBB and will see how long one pack lasts before I have to switch over to the backup pack.

72 de Larry W2LJ
QRP - When you care to send the very least!

Posted at: July 26, 2014 11:02 PM

EA1CS

MJ0EXV y GJ0VNK, Jersey Is.

Pequeña operación junto con DJ8NK (GJ0VNK-QSL via DJ8NK) del 8 al 12 de agosto 2014.

Gracias a Mathieu MJ0ASP por su ayuda.

  • QSL via F6EXV (bureau REF, directa, LoTW o clublog )


73´s, Luis EA1CS

Posted at: July 26, 2014 08:58 PM

G3XBM (Roger)

JT65HF and JT9-1

Well, I made a start today.   Nothing much doing on 10m, so I QSYed down to 20m where answering CQ calls got me replies from UR4UHE (KO50 square) and SP6ECQ on JT65HF. Although I heard an Italian calling CQ on JT9-1 I failed to get a reply.

No great DX but the first couple of countries in the log.

Posted at: July 26, 2014 07:35 PM

6m WSPR this morning

I QSYed back to 6m about 50 minutes ago and already been spotted by G4IKZ (18km), OH5RM (1860km) and have myself spotted G6AVK (78km) and OH5RM strongly. Looking quite promising on 6m Es so far today.
6m WSPR this morning (1W ERP)
Sunspot count today is 65 (creeping up again) and 20-30MHz forecast to be "normal". I expect some F2 on 10m today.

I may stick with 50MHz (6m) WSPR today, but want to give JT65 and JT9-1 a good go on 10m and 6m. I have had JT9-1  QSOs on 10m before but believe the rig stability is probably better with JT65. At 6m I suspect JT9-1 will be unsuitable.   JT9-1 is better suited to LF and MF use. I shall use JT9-1 on 630m again soon.

UPDATE 1235z:   Still very much a Scandinavian colour to the Es with OH7AI (2000km) a new call today at 1126z. He is also spotting me. G6AVK is also spotting me.

Posted at: July 26, 2014 03:21 PM

EA1CS

Nuevo logo para Invoker Team



Invoker Team, formado por Christian EA3NT, George EA2TA, Simón IZ7ATN, Raul EA5KA, Vincent F4BKV, Col MM0NDX, Ramón EA3OR y Gui F4FET, nos da muy a menudo la posibilidad de trabajar importantes IOTA ( CY9M, HP0INT e inumerables referencias europeas), acaba de estrenar nuevo logo, el cual pasará a decorar mi blog en breve........


73´s, Luis EA1CS

Posted at: July 26, 2014 01:13 PM

G3XBM (Roger)

10m - early

Until 0930z I was on 10m WSPR. GDX overnight included G8JNJ/A (184km), M0ITC (164km), G8VDQ (93km) and M0XDC (65km). The was also Es from Scandinavia early on today (SM,LB). I have now QSYed to 6m WSPR.

Posted at: July 26, 2014 12:21 PM

F5IRO (Freddy)

Un musée des communications à Neuville-sur-Seine (10)

"A Neuville-sur-Seine (10) collectionneur, Guy Millot, passionné par les systèmes de transmission, va ouvrir son musée à l’occasion de la Route du champagne en fête, ce week-end. Les personnes qui ont déjà eu le privilège d’entrer dans le musée des communications sont restées « épatées » et nul doute que les visiteurs de samedi et de dimanche le seront tout autant. La collection de Guy Millot

Posted at: July 26, 2014 11:19 AM

K9YA magazine

Le dernier K9YA magazine est en ligne, une simple inscription vous sera demandée pour le recevoir. lien

Posted at: July 26, 2014 11:14 AM