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:

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

        MS Log - 2005

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

 

 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.

 

 

         My Earth-Moon-Earth (EME)

Activity is not so big.
Still I can tell only about few initials on 144 Mhz band.
The reasons are: no suitable antenna and not enough output power.
Of course, it possible to work with a "big gun" stations and increase own results up to
few tens of initials, but as somebody says, at once: "The life is too short to work on QRP".
In my opinion, these words are exactly for EME...

Here are my initials on EME 2 meter band.

DATE TIME CALLSIGN LOCATOR TX RX MODE REMARKS QRB
18/07/1999 19:45 W5UN EL29HK OOO OOO CW   8717
18/07/1999 20:03 RU1AA KP40XD OOO OOO CW   305
30/07/2004 20:53 I2FAK JN45OB OOO OOO JT44   1887
20/11/2004 20:28 S52LM JN65TX RO O JT65   1647
20/11/2004 20:50 PA0JMV JO22ML RO O JT65   1430
20/11/2004 21:06 SP2OFW JO93AC RO O JT65   795
21/11/2004 18:59 RK3FG KO86HP RO O JT65   758
21/11/2004 22:20 DL8YHR JO41GV RO O JT65   1297
21/11/2004 22:35 W8BYA EN70JT O RO JT65   7176
11/04/2005 19:09 KB8RQ EM79MV RO OOO JT65   7251
11/04/2005 20:14 N5BLZ EL29EW RO OOO JT65   8690
12/04/2005 21:43 SP6GWB JO80JG OOO RO JT65   1116
14/04/2005 20:10 S52LM JN65TX O RO JT65   1647
14/04/2005 21:57 F8DO JN26IF O RO JT65   1960
17/04/2005 19:19 DF7KF JO30GU O RO JT65   1477
23/04/2005 18:30 EA6VQ JM19HN O RO JT65   2681
23/04/2005 18:58 5B8AD KM64TV RO O JT65   2782
24/04/2005 01:12 W8LON EN73JB O RO JT65   6965

Number of QSOs listed: 18

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This site was last updated 06/20/05