

Transmission details:
| QRP | 360mW | |
| QRG | 10,140,060 | |
| QRV | 23-Feb-06 1145 UT until 01-Sep-06 2000 UT | |
| QTH | IO91VH, 15 miles south of London, UK | |
| Ant | Attic Longwire | |
| Msg | FSK, 3Hz separation, squarewave with 25 second cycle |

Junkbox beacon construction:
This simple 30m QRSS beacon is built entirely out of junkbox parts, the only component purchased specifically for this project was the 10,140kHz crystal. The oscillator is in a polysytrene box made using pieces of packaging material and rubber bands, for protection from short-term temperature fluctuations such as drafts.
READ MORE.
Antenna and Attic installation:
I use a full size half-wave dipole (14.2m) in my attic, taped to the roof at about 4 feet (1.3m) above the attic floor. At its centre is an 18-turn balun wound on a T130-2 toroid. The balun connects directly to the transmitter output using 5m of coaxial cable.
READ MORE.
Reception map:
This map shows the worldwide reception of the G0UPL junk box beacon. Not all stations are shown on the map since some are geographically close to each other so overlap on the map. A full list of receiving stations is listed below.
SEE MORE.
Reports:
On this page you can view at least one reception report from each station who copied the beacon. I have received so many screenshots by now that I cannot include every single one in this page! However I have shown all the first reports, and have a new page showing interesting and unusual ones.
READ MORE.
30m QRSS Receiver:
Don't miss this related project: a simple 2-chip 30m QRSS crystal controlled direct conversion receiver powered with +5V from a computer's USB port!
READ MORE.
Currently reports have been received from 45 stations as follows:
| Callsign | Name | Locator | Distance | Location | 1st Report | Notes | ||
| 1. | VK6DI | David Isele | OF88CD | Mount Helena, Australia | 28-Feb-06 | |||
| 2. | WB3ANQ | Larry Putman | FM19RC | Pasadena, Maryland, USA | 28-Feb-06 | |||
| 3. | DL6JAN | Christian Proehl | JO60KU | Chemnitz, Germany | 01-Mar-06 | |||
| 4. | ZL4OL | Mike McAlevey | RE54GG | Waitati, New Zealand | 01-Mar-06 | |||
| 5. | ON5SL | Pierre | 01-Mar-06 | |||||
| 6. | LA5VNA | Steinar Aanesland | Aas, Norway | 01-Mar-06 | ||||
| 7. | ON4LP | Erik Platteeuw | JO11OE | Brugge, Belgium | 02-Mar-06 | |||
| 8. | I1DFS | Paolo | JN54AC | Italy | 03-Mar-06 | |||
| 9. | LA9BEA | Tjærand Bauge | JO29OG | Åkrehamn, Norway | 04-Mar-06 | |||
| 10. | IW0HK | Andrea Borgnino | JN61FV | Rome, Italy | 05-Mar-06 | |||
| 11. | IOSKK | Alex | Rome, Italy | 14-Mar-06 | ||||
| 12. | OE5EEP | Heinz Schnait | Seewalchen, Austria | 16-Mar-06 | ||||
| 13. | I0CG | Giuliano | Rieti, Italy | 30-Mar-06 | 80km East of Rome | |||
| 14. | IK4GBU | Valeri Bianchi | Casalecchio di Reno, Italy | 31-Mar-06 | ||||
| 15. | G3VYZ | Les Thompson | IO95FB | Tyne & Wear, UK | 10-Apr-06 | |||
| 16. | PA1SDB | Peter Knol | JO33KH | Appingedam, Netherlands | 10-Apr-06 | |||
| 17. | IK4IDP | Andrea Tommasi | JN54QL | Castenaso, Italy | 20-Apr-06 | |||
| 18. | IV3XYM | Alessandro Vitiello | JN65SU | Ronchi dei Legionari, Italy | 21-Apr-06 | |||
| 19. | Giuseppe Bini | Italy | 21-Apr-06 | |||||
| 20. | Giuseppe Bimbi | Italy | 21-Apr-06 | |||||
| 21. | IK2JET | Alberto Scanzi | Lonato, Italy | 22-Apr-06 | ||||
| 22. | G3GKI | Vic Kershaw | Scarborough, Yorkshire, UK | 23-Apr-06 | ||||
| 23. | IZ1KGL | Giulio | Torino, Italy | 23-Apr-06 | ||||
| 24. | Andrea Lawendel | Milan, Italy | 23-Apr-06 | |||||
| 25. | I2NDT | Claudio Marega | JN45TQ | Italy | 24-Apr-06 | |||
| 26. | DJ2LF | Walter Staubach | JN59NO | Erlangen, Germany | 26-Apr-06 | |||
| 27. | G0UPL | Hans Summers | IO91VH | 0.005km | Kingswood, Surrey, UK | 29-Apr-06 | ||
| 28. | IZ2KQP | Enrico | Mese, Italy | 29-Apr-06 | ||||
| 29. | DK5NA | Michael Peters | JO42BH | Germany | 30-Apr-06 | |||
| 30. | IK1ZYW | Paolo Cravero | JN35TC | Italy | 04-May-06 | |||
| 31. | ON6RR | Staf Rans | Belgium | 07-May-06 | ||||
| 32. | Hartmut Wolff | JO52HP | Germany | 07-May-06 | ||||
| 33. | IW3SGT | Alessandro Kosoveu | JN65VP | Trieste, NE Italy | 08-May-06 | |||
| 34. | IZ2EEQ | Matteo | Italy | 09-May-06 | ||||
| 35. | SM6LKM | Johan Bodin | Sweden | 11-May-06 | ||||
| 36. | M0AYF | Des Kostryca | IO93OJ | Gainsborough, UK | 20-May-06 | |||
| 37. | G6AVK | Colin Thomson | JO01HO | 66km | Rayleigh, UK | 23-May-06 | ||
| 38. | G4KKI | Bill Stevenson | IO83TM | Swinton, Manchester, UK | 23-May-06 | |||
| 39. | IN3KLQ | Giuliano | JN56RG | Italy | 15-Jun-06 | |||
| 40. | G7IZU | Andrew Smith | IO70WK | Plymouth, UK | 29-Jun-06 | |||
| 41. | 2E0KNJ | John Knott | Wells, Somerset, UK | 09-Jul-06 | ||||
| 42. | IZ8GFQ | Quirino Tirelli | JN71JD | Benevento, Italy | 21-Jul-06 | |||
| 43. | I2PHD | Alberto di Bene | JN45SL | Casirate, Italy | 24-Jul-06 | |||
| 44. | N3TFM | Todd Putman | EN72FH | Kalamazoo, Michigan, USA | 24-Jul-06 | |||
| 45. | AA4XX | Paul Stroud | FM05QR | Raleigh, NC, USA | 30-Aug-06 |

Knights webpages:
VK6DI David http://www.users.on.net/~davroz/vk6di/index.html
WB3ANQ Larry http://www.wb3anq.com
DL6JAN Christian http://www.proehl-elektronik.de/qrss/qrss_e.html
IW0HK Andrea http://mediasuk.org/iw0hk/qrss2.htm
I0SKK Alex http://www.eco-lavoro.com/i0skk/Beacon.htm
OE5EEP Heinz http://members.aon.at/oe5eep/QRSS.html
AK0B Stan http://www.ak0b.com/
G6AVK Colin http://www.g6avk.demon.co.uk/qrss.html
G7IZU Andy http://www.tvcomm.co.uk/radio/live_b.html
I2PHD Alberto http://www.weaksignals.com
G4OEP Andy http://g4oep.atspace.com/qrss/qrss.htm
M0AYF Des http://www.qrss.thersgb.net/
IK0VVE Max http://www.radionatura.it/ik0vve2/mept1.aspx
QRSS Information and QRSS Knights mailing list:
QRSS Knights mailing list http://mail.cnts.be/mailman/listinfo/knightsqrss_cnts.be
QRSS Knights website http://www.cnts.be/knights_qrss/
QRSS Software:
ARGO: the most popular QRSS viewer program http://digilander.libero.it/i2phd/
Propagation pages:
Digisonde - current propagation http://digisonde.oma.be/cgi-bin/latest.exe
Propagation theory pages by G4NSJ http://www.g4nsj.co.uk/which.shtml
Earth Viewer www.fourmilab.ch/cgi-bin/uncgi/Earth
Freeware propagation prediction program www.its.bldrdoc.gov/elbert/pc_hf/hfwin32.html
Construction aids:
Mini ring core calculator http://www.dl5swb.de/html/mini_ring_core_calculator.htm
GQRP club guide to harmonic filters www.gqrp.com
Components:
DB6NT crystal heater (extra stability for your beacon!) http://www.kuhne-electronic.de/english/special/crystalheater.htm
Peter DL6NL has a QRSS frequency HC49 crystals for sale. He has the following frequencies: 7.000, 7.020, 10.137 and 10.140. Price is 5 Euros for three crystals, including shipping. Email him at his AOL address: ![]()
Beacon keyers:
http://k1el.tripod.com/
http://www.expandedspectrumsystems.com/
http://www.proehl-elektronik.de/start.html