MS and EME

 

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The meteor scatter (MS) is one of my favorite operations on VHF.
My first HSCW (High Speed CW) QSO was in August 1981 during Perseides. At this time I used
all home made equipment, included transceiver, transverter 144/28 MHz, 100 W power amplifier
(GU-29 tube), home made programmable memory key, which gave me possibility to transmit
up to
1200 letters per minute and tape recorder with variable speed and ring tape.    
And 7 elements QUAD antenna by GW4CQT. 
As for a long time it was!
   
Please, check my Meteor Scatter Logs by years.
   
Last update:
23.02.2011

       
MS Log before year 2001 
        MS Log - 2001  
       
MS Log - 2002
       
MS Log - 2003
       
MS Log - 2004

        MS Log - 2005

          MS Log - 2006
          MS Log - 2007
          MS Log - 2008
          MS Log - 2009
         MS Log  - 2010
         MS Log  - 2011


     Here is list of my initials MS by HSCW/SSB/WSJT on 2 meter band.
 

Below is a table of major annual meteor showers with ZHRs ≥ 20
(ZHR- Zenithal Hourly Rate of meteors).

Shower Period of Activity Maximum ZHR

Velocity

(km/sec)

Quadrantids Jan 1 - 5 Jan 3 120 42
April Lyrids Apr 16 - 25 Apr 22 15(90) 48
Eta Aquarids Apr 19 - May 12 May 5 60 66
Arietids May 29 - June19 June 7 60 37
z-Perseids May 20 - July 7 June 9 40 30
d-Aquarids July 12 - Aug 19 July 28 20 41
Perseids July 17 - Aug 24 Aug 12 >100(400) 60
Orionids Oct 2 - Nov 11 Oct 21 20 66
Leonids Nov 14 - 21 Nov 17 20 71
Geminids Dec 7 - 17 Dec 14 110 35
Ursids Dec 17 - 26 Dec 22 >12(90) 34

Here is detailed calendar of year meteor showers events  from IMO (International Meteor Organization)
 

 One of the most popular programs, using for Meteor Scatter QSO is a WSJT.
WSJT is the name of a computer program.  It stands for ''Weak Signal communication, by K1JT.'' 
The program currently supports four principal modes:
FSK441, designed to support communication using very brief “pings” from meteor trails in the ionosphere;
JT6M, also for meteor scatter, but especially optimized for the 6-meter band;
JT65, ideal for extremely weak but slowly varying signals such as those found on troposcatter and
Earth-Moon-Earth (EME) paths;
EME Echo mode for detecting and measuring your own echoes from the moon. 
The program also offers a Measure mode for testing Sun noise and EME Calculator to help
you estimate the strength of your own and other stations’ echoes from the moon. 
                           

Here is fragment of  FSK 441 MS QSO (ES1RF-HB9DFG). So easy to manage!
Captured from the computer's screen.

 

hb9dfg.gif (45753 bytes)

 

          Earth-Moon-Earth (EME) activity.

This is 4 x 18 elements yagi (2M18XXX) with original 4 port splitter and phase cables.
All from by M2 Antenna System, Inc.
But no elevation yet, so I can work only on Moonrise and Moonset (below 10 degrees).
The best result I can get is between 4 and 8 degrees. So, only about 2 hours in a day...
I hope to install elevation rotor in a very nearest future.

    
Middle of November 2007.    Middle of December 2007.
Array just 6 meter AGL.       8 x 19 ele. yagi just erected.
Now array about.13 m AGL   17 meters AGL.
and has elevation rotator.                     

I started to use my new PA (GS-35B) on 11.02.2009 with a very good results.
Antenna array 4x2M18XXX has elevation, limited   to 45 degrees.
 

Follow to the next link you will find list of
My initials on EME 2 meter band
 

Here are my initials on EME 70 cm band
The table has generated by VQ_Log 3.1B

Last update: 23.02.2011
 
NUM. DATE TIME CALLSIGN LOCATOR S/R REMARKS QRB
1 16/12/2007 18:58 HB9Q JN47CG D/ D 1st 70 cm EME QSO 1714
2 07/11/2008 16:05 DK3WG JO72GJ D/D   988
3 07/11/2008 16:11 I1NDP JN45AL B/B New # 1891
4 07/11/2008 19:14 DL7APV JO62JR B/B   1032
5 16/12/2008 00:02 UA3PTW KO93BS D/D   1023
6 04/01/2009 16:56 GW3XYW IO71XR D/D New DXCC and # 1980
7 04/01/2009 20:20 K2UYH FN20QG D/D New DXCC and # 6728
8 04/01/2009 20:27 WA4NJP EN84DG D /D New # 6786
9 18/04/2010 21:20 KP4AO FK68OI D/D   8356
10 17/02/2011 21:46 DL5FN JO40FB /   1456

Number of initials listed: 8

                                    Is it possible to work EME on a very short distances?

                                                                YES, OF COURSE!

 

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This site was last updated 02/23/11