Välkommen till Ängelholm och Skälderviken!   Foto: Jessica Nilsson
HCDX partner channel
SWB-editor:
Thomas Nilsson
Ängelholm, Sweden
Tel:+46-431-27054
thomas.nilsson@sverige.net
Perseus receiver
Wellbrook ALA100 parts
RPA-1 HF Amplifier
Länkar
Azimuth Map
Solar Terrestrial Activity Report
Spaceweather
Daylight Map
Exakt tid
Perseus FMSCAN userlist
MW Offset-list
FCC AM Query
PUDXK
De Radioaktiva
Guy Atkins Five Below
Perseus Yahoo! Group
NORDX Yahoo! Group
MWoffsets Yahoo! Group
Arctic DX
¡BAMLog! Bruce's AM Log
Dave's Radio Receiver Page
Mark's RF Circuit Building Blocks
The first issue of Shortwave Bulletin dates back to the Summer of 1961! Many of the world´s best and most experienced DX'ers have been and are still members and contributors. SWB's objective is to quickly issue the latest and hottest DX catches to the members.
The latest issue is available to non-members first after two weeks. The older issues and the reference archives, as a courtesy to all DX-ers, are open to everybody.

Shortwave Bulletin is produced in Sweden basically in Swedish, but contributions are normally presented in original language, so you will find all Scandinavian languages as well as English in this bulletin.

Quality is the key word. SWB publish information of interest to the experienced DX-er. This is not a forum for the newcomer to shortwave. SWB is published every second week. We welcome new active members.

To achieve membership: Contact the editor and give us a short introduction. The SWB board has the right to accept or turn down applications for membership.

Key benefits of the membership is the guarantee to receive the best and hottest DX news as fast and regularly as possible. Your personal printed hard copy is produced and mailed same day as deadline day! Within a few hours after deadline (normally 0800 UTC Sundays) - a pdf-version is already there for you in the mail.

HF Propagation

What do the figures mean in the table below: High solar flux (solar flux is expected to begin rising from 65 up to >200 when the next solar maximum is reached within 4-6 years), high A-Index (> 10), high  K-index ( > 5) due to geomagnetic storms, also proton events and polar-cap absorption are bad news; giving poor long-distance reception of medium wave and tropical band stations, especially affecting paths over polar areas and paths east/west of your location. For instance Polar-cap absorption can completely wipe out signals in polar areas for several days.
Glossary of solar terrestrial terms, see http://www.swpc.noaa.gov/info/glossary.html
or see the serious effects on conditions at http://www.esr.se/prop/sfi.html (Konditioner, solfläckar och sånt ... in Swedish)

SWB - Shortwave Bulletin

pdf.gif (134 bytes) Download the latest SWB issue
   
SWB Archive - issues from May 1999
SWB 40 års jubileum
Dateline Bogotá Library 1993 - 1998 compiled by Henrik Klemetz
Peru on shortwave - Peruvian stations heard 1992 - 2002 compiled by Henrik Klemetz

Antennas

pdf.gif (134 bytes) How to build a reversible Flag-antenna by Thomas Nilsson (in Swedish)
pdf.gif (134 bytes) ALA100 special designed antenna without Wellbrook amplifier by Thomas Nilsson
pdf.gif (134 bytes) Wellbrook ALA100 large aperture loop, review by Alan Gale
OH2BEN reversible Beverage Antenna, building instructions
pdf.gif (134 bytes) K9AY Loops by Gary Breed
pdf.gif (134 bytes) How to build the K9AY loop by Gary Breed, AY-Technologies
pdf.gif (134 bytes) Impedance matching transformers for MW and lower SW by John Bryant
pdf.gif (134 bytes) Fabricating impedance transformers for receiving antennas by John Bryant
pdf.gif (134 bytes) På Störningsjakt i en vanlig villa av Bengt Falkengren (in Swedish)
   

Perseus

pdf.gif (134 bytes) Perseus Markers Guide by Niels Schiffhauer (in German)
pdf.gif (134 bytes) Perseus Markers Guide by Niels Schiffhauer (in English)
pdf.gif (134 bytes) Perseus Markers Guide by Niels Schiffhauer (in Italian)
pdf.gif (134 bytes) SciDAVis & several Perseus Markers (<= ver 2.1h) by Thomas Nilsson (in English)
pdf.gif (134 bytes) SciDAVis Win 7 settings for Perseus markers.log import by Thomas Nilsson (in English)
excel.gif Perseus Markers import guide (ver 2.1i) for Excel by Thomas Nilsson (in English)

Receiver modifications & reviews

pdf.gif (134 bytes) NRD-515 modifications by Thomas Nilsson (in English)
pdf.gif (134 bytes) NRD-525 modifications by Thomas Nilsson (in English)
pdf.gif (134 bytes) DX Engineering RPA-1 HF-preamplifier, DX-Engineering leaflet
pdf.gif (134 bytes) Clifton Laboratories Norton HF Amplifier Z10040B Assembly & Operation Manual
pdf.gif (134 bytes) Pre-Amp Peregrinations AR2/RPA-1 HF-preamps on DXing.Info, by John Bryant/Mark Connelly

Recordings

ram.jpg (134 bytes) K9AY demo recording (ram-file) & corresponding article at DXing.info by Guy Atkins
pdf.gif (134 bytes) 1566 Demo Flag-antenna reversal - AIR Nagpur/2 x English stations, 2008-09-18
pdf.gif (134 bytes) 3905 R New Ireland, Oct 3 2008 recording from Christoph Ratzer, Austria
pdf.gif (134 bytes) 3905 R New Ireland, Jan 6 2009 recording from Christoph Ratzer, Austria

ARC-Morokulien

ARC-Morokulien at 23.47:41 UTC, Dec 27 2009, dominating the frequency!
Best reception in USB during the entire transmission.
pdf.gif (134 bytes) Recording in USB from Dec 09, 2345-2349 UTC (2,9 mb)
Clifton Lab. Z10040B HF Amp.
KIWA Broadband preamp 2.0