November 27, 2014

EA1CS

3Y0F, Bouvet Is. fechas

Dx World vía Twitter ha anunciado las fechas ( tan alargo plazo podrían variar ) para la operación de Bouvet Is 3Y0F. Podría ser que la operación se lleve a cabo del 17 de diciembre 2015 al 10 de enero 2016.

Habrá una web en breve para ir conociendo mas detalles.

73´s, Luis EA1CS

Posted at: November 27, 2014 05:43 AM

November 26, 2014

AE5X (John)

Hundreds of issues of various radio magazines now online

Various (make that numerous) radio magazines from the 1920’s to the 1980’s are now available online as pdf files, free for the downloading. Click on the photo below and enjoy. . . .

Posted at: November 26, 2014 11:31 PM

G3XBM (Roger)

Hendricks QRP Kits BitX20A

See http://www.qrpkits.com/bitx20a.html .

If I was looking for a simple, reliable QRP SSB rig for HF use in the coming years then the Hendricks QRP Kits version of Ashlan Farhan's BitX transceiver for 20m would be in the frame. They also do a version for 17m, but there is more chance of QSOs on 20m.  The rig has a useful 5W pep output and looks straightforward to build for most people. The Ashlan Farhan design is well proven. Going from 100W down to 5W is only just over a couple of S-points. 5W will get you plenty of QSOs on 20m SSB. 5W is fun.

A 10m version would be fun, but sadly is not available, but likely to be less useful in the years to come, apart from summertime Es. A 10m design would need better MOSFET PA devices anyway I think.

Posted at: November 26, 2014 10:49 PM

Last North American on 10m WSPR today

K9AN (6505km) was the last USA station to spot my 500mW WSPR beacon at 1724z today. Since then, just local G4IKZ (18km) spotting me.

Posted at: November 26, 2014 09:35 PM

W2LJ (Larry)

Thanksgiving 2014


A very Blessed and Happy Thanksgiving to all my Amateur Radio friends. Enjoy the day with family, friends and food!

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

Posted at: November 26, 2014 06:48 PM

EA1CS

7O2A, AF-028



Steve OM3JW / 26 noviembre 2014

Dimitry RA9USU estará activo de nuevo desde Socotra Is, AF-028, Yemen del 27 de noviembre al 1 de diciembre 2014 probablemente como 7O2A, incluyendo su participación en el CQ WW Dx Cw contest.

Qsl vía UA3DX

73´s, Luis EA1CS

Posted at: November 26, 2014 05:30 PM

G3XBM (Roger)

South America

I see CX2ABP (11127km) was spotting my 500mW 10m WSPR beacon this afternoon. I will have to check my records to see if this is the first time he has copied the WSPR-AXE beacon. I know I've already been copied in South America by a station in southern Brazil.

Posted at: November 26, 2014 04:47 PM

Climbing sunspots

Sunspot number has climbed back to 120 and 10m propagation is again expected to be "good". So far, what looks like single hop F2 stations (or maybe back-scatter?) spotting my 500mW WSPR-AXE beacon (EA8, OH, LZ, CT and UR). No exceptionally long DX reports on 10m as yet here, but these are quite likely.

At the moment I am QRV on 10m WSPR TX (500mW) only and monitoring dT (timing errors) by receiving locally on the FT817 tuned to 10m WSPR.  So far, dT errors are a maximum of 1.2 seconds.

Posted at: November 26, 2014 10:18 AM

November 25, 2014

G3XBM (Roger)

50MHz UKAC contest - Nov 25th TONIGHT

Even though my voice is still very bad I may try for a few points in the 50MHz UKAC contest 2000-2230z tonight. The only 50MHz antenna I have is my V2000 vertical, so I am unlikely to work much.  I'll probably not be on for too long.
Just 2 stations worked in 50MHz UKAC this evening with 5W to vertical V2000
UPDATE 2122z:   I was on for about 50 minutes and had to stop as my voice was suffering badly.   Being crossed polarised with most stations did not help. I managed just 2 QSOs with 5W to the V2000 vertical with best DX being G3WIR/A at 116km. With, for example. a 6m halo, horizontally polarised antenna, I'd probably have worked many more stations than I did. Still, it was worth a go.

Posted at: November 25, 2014 10:57 PM

QRT on 630m and 10m WSPR

This evening and overnight I decided not to go on WSPR at all.  Both my 10m WSPR-AXE beacon (500mW) and my 630m (472kHz - 5mW ERP) WSPR stations have been turned off and antennas disconnected. 

I shall probably resume on 10m WSPR in the morning after breakfast.

Posted at: November 25, 2014 10:55 PM

Spark transmitters and modern simple rigs

In the early days of wireless, spark transmitters were all they had. Selectivity and bandwidths were not major concerns.  These days it is all so different with sometimes very crowded bands and the bandwidth of both transmitter and receiver being of major importance.

See http://en.wikipedia.org/wiki/Spark-gap_transmitter for some interesting reading. I recommend you do not try a spark transmitter as you would be very unpopular because of the wide signal and interference caused.   By all means read about them though.

A modern challenge is to see just how simple rigs can be made yet still function credibly on the amateur bands today.  Rigs like the Pixie are fun, but such ultra-simple transceivers are let down by deaf or easily overloaded receivers. To my mind, the receivers have to be selective, sensitive, have netting, and not be easily overloaded. The challenge is to overcome these issues! Often TX power is not the deal breaker.

UPDATE 1740z:  W5OLF has just shown me a photo of his tiny 1 inch ferrite rod antenna on which he has had some success with on 10m WSPR.  I tried some WSPR experiments with ferrite antennas some years ago on 40m, 30m and 20m. As long as the ferrite does not saturate they do work. See www.g3xbm.co.uk .

Posted at: November 25, 2014 07:18 PM

My brain

I am still puzzled by my brain functioning.

Most mental functions seem fine, but when I do an email or blog post I seem slow to spot errors like spelling mistakes or missing full stops. Usually, I try to correct errors before sending, but looking back I still spot mistakes that I've missed. It is as if my brain needs far more time to actually see the mistake. This must be yet another stroke related thing. Driving seems absolutely fine: I am not giddy and I feel in good control.

If you see blog errors please tell me. I want to correct the errors and know when my brain is not doing its job right.

Posted at: November 25, 2014 07:15 PM

472kHz receive here last evening

I receive 472kHz via my transverter but on RX it is totally passive i.e. I receive directly on 472kHz on the FT817 through a series tuned circuit at 472kHz.  Last night, mid evening, 472kHz WSPR was quite busy (see below):
If anything, the FT817 is marginally deaf on 472kHz. This does not seem to be issue though as I seem to hear most of what's going. The "antenna" for the above was the short baseline earth-electrodes: one end is grounded in the flower bed with a 1m long earth rod, about 15m away, whilst in the shack the other connection is to the mains earth. The link back from the far electrode to the shack is 32 x 0.2mm PVC covered wire at a height of about 2m. I am lucky that my RX noise floor is low at this QTH.

On TX last night I was copied by 8 different stations with best DX last night G8HUH (250km). Best DX on the earth-electrode system (on TX with 5mW ERP) is DL-SWL (701km).

Posted at: November 25, 2014 07:08 PM

Last 10m USA spot tonight

K3ZV (5692km) was the last to spot my 500mW 10m WSPR-AXE beacon tonight at a very early 1650z. Since then just local G4IKZ (18km) copying me.

Posted at: November 25, 2014 07:05 PM

EA1CS

DU3/R7KW y DU3/YL3GM, Filipinas

Serge R7KW y Oleg YL3JM están planeando una operación en modo holiday-style desde Filipinas del 24 de noviembre al 2 de diciembre 2014.

Su QTH estará ubicado en la isla de Luzón OC-042, y habrá que estar atentos a una posible excursión a la isla de Corregidor OC-244 del 25 al 27 noviembre.

QRV principalmente en Cw, con participación en el CQ WW Dx Cw Contest.

 QSL vía K2PF (OQRS en ClubLog). Fechas tentativas.




  • DU/YL3JM en el aire desde Corregidor Is, OC-244 ( click )


73´s, Luis EA1CS

Posted at: November 25, 2014 06:48 PM

DU3/YL3JM en el aire desde OC-244

Hace unos días anunciábamos la operación desde Filipinas de  DU3 / R7KW y DU3 / YL3GM y la posibilidad de que visitarán Corregidor Is. OC-244.

En el reflector IOTA se ha Recibido la siguiente información:
Oleg DU3 / YL3JM comenzo su actividad desde la isla de Corregidor OC-244.   Usando 100w y vertical. 
Actividad mayormente en CW. Operará en principio hasta el 27 de noviembre. Fecha es provisional
QSL via K2PF OQRS 


De 73, Luis EA1CS

Posted at: November 25, 2014 06:46 PM

TX8C, N. Caledonia

FK8DD/Sam - FK8IK/Mic - FK8CE/Dom estarán activos durante el CQ WW Dx Cw contest 2014 como TX8C desde Noumea, N. Caledonia. CQ Zone 32 - ITU Zone 56 - IOTA OC-032 - RG37FR

QRV con TS-590S - Tokyo High Power Amplifier 400wtts. Spiderbeam - V Invertida 40m - L wire para 80/160m


Qsl vía NI5DX.

  • Las Qsl estarán listas en viarias semanas y correrán a cargo de UX5UO.


73´s, Luis EA1CS

Posted at: November 25, 2014 05:54 PM

G3XBM (Roger)

Sunspots and 10m conditions - Nov 25th 2014

The sunspot number has climbed to 111 today and 10m daytime conditions are again "good". I missed out on 10m this morning until about 1412z, when the band was wide open to the USA, yet again.

Posted at: November 25, 2014 03:29 PM

EA1CS

T88FC, Palau

Hiro JA7DAJ estará activo desde Koro como T88FC del 3 al 6 de diciembre 2014.

QRV en bandas de HF y 6mts sólo en Ssb.

QRV JA7DAJ buro o directa



73´s, Luis EA1CS

Posted at: November 25, 2014 03:12 PM

A25J, Botswana

John ZS5J / 24 noviembre 2014

Hoy 24 de noviembre 2014 finalmente se me acaba de conceder licencia en Botswana por la autoridad BOCRA Botswana. Me conoceréis tal vez por mis otros indicativos C91J, ZS5J y 7P8 / ZS5J.


Espero conseguir actualizar los Qso de este indicativo en LoTW, pero si quieres una tarjeta QSL de papel, por favor envíe $ 3 y SAE con su tarjeta a:

JOHN KRAMER PO BOX 102303 Meerensee, 3901 SUDÁFRICA

El equipo es actualmente un Icom IC-7000, 100 vatios. Las antenas son  SteppIR BigIR 80mts,  - vertical para 6 mts y wimdom de 10 a 80mts. Voy a traer mejores antenas y un amplificador lineal en mi próximo viaje a Botswana.

73 John, A25J cerca de Francistown, Botswana

73´s, Luis EA1CS

Posted at: November 25, 2014 02:03 PM

E44Y, Palestina 2016



La idea surgió durante una conversación con Marco HB9OCR. Después de regresar de la isla de Lampedusa  para participar en el CQWW SSB 2014 (IO9Y), decidimos organizar una pequeña DXpedición a Palestina E4.

Después de una breve revisión en Clublog vimos que Palestina está en el lugar número 48 del DXCC de los más buscados en los EE.UU. y en el puesto 98 en Asia. INTERESANTE !!!

Fijamos una fecha para marzo de 2016. En muy poco tiempo se nos unirán dos amigos ..

Te mantendremos informado de nuestras actividades en nuestra web y redes sociales.

73, PALESTINA 2016 Team



73´s, Luis EA1CS

Posted at: November 25, 2014 01:43 PM

SV8CS (Spiros)

SV3DVO 1st transmittion on 474 KHz

My friend Manolis, SV3DVO has tune today his Antenna from 136KHz to 474KHz and he made 1st transmittion in MF 474 Khz in OP-8 and WSPR-2. He is using the Marconi "T" type Antenna with 4 parallel wires 18,00m long and 10,00m vertical on the roof of his QTH.
The transmitter power is 20w and his signal was captured in Italy, Germany and France just with the firsts transmittions.

My congratulations Manolis for this nice job and many DX on MF.
73, Spiros/SV8CS 

Posted at: November 25, 2014 12:59 PM

W2LJ (Larry)

I'm dreaming of a white .......

Thanksgiving.

What?!?

Yes, Virginia, it looks like the east coast is going to receive a rare white Thanksgiving.  Even though it approached 70F (21C) here yesterday, a change is in the offing.  By 8:00 AM tomorrow morning, the busiest travel day of the entire year, a classic Nor'easter will be making its way up the coast, bringing much colder air and snow with it. By Buffalo, NY and Great Lakes region standards, we're talking a mere dusting of snow - maybe only 3-8 inches (7-20 cm), but enough to make traveling to Grandma's house a trickier proposition than normal. By the way, the last time it snowed in these parts for Thanksgiving was 1989 - some 25 years ago.


On a Ham Radio note, it appears my W3EDP antenna has gone the way of the DoDo Bird, that is - extinct.  I plugged it into the KX3 the other day and I noticed that it is considerably deaf.  Stations that I can hear plainly and loudly with the EDZ and the Butternut are but a mere whisper on the W3EDP.

I suspect I know where the trouble is.  There are only three parts to this antenna - the actual wire, the balun, the coax.  I'm placing my money on the coax.  I suppose water could have gotten into the balun and could be wreaking havoc, but it is a commercial brand, popular make balun.  I think it's way more likely that water probably got into the coax.  I probably didn't weather-proof the connection as well as I thought I had.

Unfortunately, I don't have a piece of coax long enough to replace it right now.  Guess I'll be ordering some over the long Holiday weekend.  I don't suppose there are any coax stores holding day-after-Thanksgiving Black Friday sales, eh?

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

Posted at: November 25, 2014 10:10 AM

November 24, 2014

G3XBM (Roger)

10m stateside

The first spot in North America of my little 500mW WSPR beacon was by W3CSW (5886km) at 1206z today. My report was -14dB S/N suggesting 10dB weaker (or even less) would still have been enough. Since then, several USA stations have spotted me. I have lost count now of the weeks and weeks the 10m band has opened to the USA and Canada after lunch.

In years to come, we'll look back on these days with envy! In the quieter years it can be a very long time indeed between good E-W openings. At such times multi-hop summertime Es can be the best/only chance of getting to the USA.

UPDATE 1824z:   The last USA 10m WSPR spot today was at 1716z by K9AN (6505km).

Posted at: November 24, 2014 06:24 PM

EA1CS

FP/N7QT, S. Pierre y Miquelón Is

Robert N7QT estará activo como FP/N7QT desde S. Pierre y Miquelón Is. del 20 al 29 de julio 2015.

QRV de 10 a 80mts en Cw, Ssb y modos digitales.

Qsl vía N7QT buro, directa y LOTW.



73´s, Luis EA1CS

Posted at: November 24, 2014 06:08 PM

G3XBM (Roger)

10m WSPR-AXE summary

 Just some of the 91 unique spots on 10m WSPR in the last 2 weeks.
My little W5OLF designed "all on one tiny PCB" 500mW 10m WSPR beacon has been spotted by 91 different stations in every continent in the last 2 weeks.

This is the probably the smallest 10m WSPR beacon possible (it fits in a tiny Altoids mint tin), need no PC, and it works remarkably well. It "fits the bill" perfectly on 10m WSPR beaconing for me.

Perhaps I should improve my 10m antenna, but having reached every continent I probably will stick with the 3-band antenna as it gives me so much flexibility. The PAR tri-band antenna covers 10m, 20m and 40m without an ATU.

Posted at: November 24, 2014 06:07 PM

EA1CS

YB4IR/8, OC-157

Busca a Imam YB4IR / 8 que va a estar activo desde Bandaneira Isla OC-157 entre el 22 y el  27 de  diciembre 2014.

QRV de 10 a 80mts en Cw, Ssb y Rtty.

QSL via YB4IR.


73´s, Luis EA1CS

Posted at: November 24, 2014 06:05 PM

VP2M, Montserrat Is.

Robert N7QT( recordar VK9AX y TX5Z en 2014) prepara sus próximas actividades para el 2015. Del 11 al 25 de marzo 2015 lo encontraremos activo desde la isla Montserrat como VP2M.

QRV de 10 a 80mts en Cw, Ssb y modos digitales.

Qsl vía N7QT buro, directa y LOTW


73´s, Luis EA1CS

Posted at: November 24, 2014 05:55 PM