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QRPp

Do more with less


 

Now using new antenna by ZEROFIVE-ANTENNAS

10-40 METER MULTIBAND GROUNDPLANE VERTICAL ANTENNA


Amateur Radio Station WB3ANQ

Operational mode QRPp QRSS Running as an M E P T

Manned Experimental Propagation Transmitter

Test Frequency 10.140.065 TO 10.140.070 MHz. GPS Disciplined

 Location is Pasadena, Maryland FM19rc   39.07 North  076.32 West

* March 12 2011 ON The Air 10.140.065 Mhz 200 mW Snake Format *

 

Now using RIGOL DG1022 Function Generator

And Trimble Thunderbolt Frequency Standard

5 hz rise 30 second period

Antenna Force12 40XK Vertical dipole ground mounted COAX 25' RG8 Mini

MEPT Will Cease Operations During Local Thunder Storms


NEW March 23 2008 Now testing with WSPR QRPp

WSPR (pronounced "whisper") stands for "Weak Signal Propagation Reporter."  This program  implements transmitting and receiving for a digital soundcard mode called "MEPT_JT", an acronym for "Manned Experimental Propagation Tests, by K1JT".  

I am now using WSPR 2.11 Thank You Joe Taylor K1JT!!

Between March 17 2008 and As of November 26 2009

1255 WSPR STATIONS HEARD BY WB3ANQ FM19rc Pasadena, MD

Over 2000 Stations That Have Copied The WB3ANQ WSPR Signal  Updated August 11 2010

   70 Countries with stations That Have Copied The WB3ANQ WSPR Station At 1 Watts Or Less

50 US States WAS Using WSPR Mode as of April 28,2009

Received in all 7 Continents including 2 stations in Antarctica

* 45 Stations in Australia that have copied my WSPR signal as of December 22 2009 *

Map of stations that have copied WB3ANQ WSPR Signal Updated As of January 07 2010

 

click link above for details


New!

On March 4 2009 VK6DI Near Perth West Australia Was Able To Copy My WSPR Signal At Only -1 dBm = 794.33 MicroWatts

Thats about 14,444,979 Miles Per Watt

 

On November 20 2008 VK6DI Near Perth West Australia Was Able To Copy My WSPR Signal At Only 1 Millawatt!


July 8 2009

WSPR STATIONS THAT COPIED MY SIGNAL AT 1 Milliwatt


July 8 2009

WSPR STATIONS THAT COPIED MY SIGNAL AT 2 Milliwatts


02/01/2006

My less then 500 Microwatts signal was received by David Isele VK6DI OF88cd Mount Helena West Australia!

Click Here For Details



The heart of the MEPT transmitters are an old surplus HP-3336B Synthesizer/Level Generator and also an HP 3325A Function/Level Generator. This equipment was used back in the early 1980's

The HP 3336B unit has the precision attenuator option and the output levels can be varied between  -72.99 dBm to +7.00 dBm with +/-0.07 db accuracy. The output of the HP is feeding a 50 Ohm half wave dipole in the inverted V configuration with the apex at 50' and 100' of  9096 ExtraFlex Low Loss Coax.

 Capable of  running 1 watt of power from a power amp Designed and constructed by Peter DL6NL  I am now able to vary my power levels from -72 dBm up to +30 dBm (1watt)

The HP 3325A also has an accurate attenuator and has an RF output that ranges from 0 dBm up to +26 dBm

The HP 3586C can accurately measure the frequency to .1 Hz resolution and has a power meter that can measure signal levels with up to 0.2 dB accuracy down to --80 dB, with 0.01 dB resolution .


All of the equipment below is referenced to the HP Z3801A

The HP Z3801A GPS Receiver  provides highly accurate time and frequency outputs Especially useful to weak signal radio enthusiasts who require the highest frequency accuracy.

1 Watt PA by Peter DL6NL Known as the "Sharky Booster"


 Elecraft K3 Serial # 661

-15 dBm to 12 Watts

 

Click Image For Larger Pictures


 

 

 

Transmit Antenna Force 12 Sigma-40XK Vertical Dipole


 

I use the sweep function of the HP-3336B to sweep between 10.140.065 and 10.140.070 MHz at a 30 second rate to give me a SNAKE pattern that is easy to see under poor conditions.

THE SNAKE FORMAT

This capture is courtesy of

"The VE1VDM Greenfield Grabber"
FN85ki
Truro, Nova Scotia, Canada



First reception of my 30 meter MEPT was by David Isele VK6DI

Near Perth West Australia

Read about it here!


The Skater DL6NL

30 Meter QRSS Slow Skaters WB3ANQ & DL6NL


Reports  and Screen Captures received from all that have copied my Beacon 63 Receptions Updated 9/13/2007

Map showing locations of stations that have copied my Beacon.    Updated 10/09/2011


Previous Hifer Operations(22 meters Part 15)

Best Reception at 100 Microwatts 3868 Miles by Peter Knol PA1SDB

Summary of Receptions Updated September 6 2005

Details of receptions, and captures.  Updated July 13, 2004

Map showing locations of stations that have copied HiFER LP  Updated September 6 2005


LF Beacon Hunter

NDB Reception Logs and Maps Updated 12/24/2006

Most Recent Mid Day NDB Band Scan Sept 15, 2007

 

Stats

As of 2/3/2008


Antennas Used For Receptions

Now  using a Wellbrook ALA100 Large Aperture Active Loop Antenna

Click For Larger Picture

Also using a Welbrook K9AY Receive Antenna for VLF, LF and HF  Wellbrook K9AY  Loop 

Information On My K9AY  Setup

Without a doubt my Wellbrook   Loop Antennas receive even on 30 meters better then any of my other antennas!!

   17db Very Low Noise Amp/Control Box.  

  Software used to process and display the QRSS signals   Provided By Alberto di Bene                       


Links

Todd N3TFM

QRSS Knights

David VK6DI

Peter PA1SDB

ON7YD

Hans G0UPL

WSPR Spot Database

http://www.elecraft.com/

 


 

73 de WB3ANQ


 


 

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This page was last updated on 10/09/11 .09:44 PM