Updated 17 Sept 2009                                   

My E - mail address :     

SM5LE EME QRT

 

The below is links from SM5LE Homepage http://web.telia.com/~u14901544/

 

-----------------------------------------------------------------------------------------------------------------------------------------------

 

My EME station , 1296 MHz :


SM5LE in JO99bd
2.2 meter mesh dish F/D=0.34   (modified SM6CKU 1.8m F/D=0.4 parabola, but with extension to 2.2m gives F/D=0.34)
Septum feed OK1DFC. With choke ring.
250 W @ feed , CW ( 200W JT65 )
Spid RAS rotator with MoonSked software by GM4JJJ
Rig : TS-2000X (with 1296 MHz module).
LNA : NE32684A cavity NF ~0.3 dB
8 dB sun-noise
CW SSB JT65
1296 MHz only

-----------------------------------------------------------------------------------------------------------------------------------------------

 

2007 ARRL EME, Scores.doc

 

 

 

2007 ARRL International EME Competition

Line Scores by Class

CALL

SCORE

QSOS

Phone/CW

Digital

TotalMults

Band

Operators

Single Operator, Multi-Band 50-1296 Analog

OZ4MM

1224500

155

155

0

79

BDE

 

SV1BTR

1048800

152

152

0

69

BD

 

VK3UM

510000

102

102

0

50

DE

 

SP7DCS

509600

91

91

0

56

BDE

 

DL1YMK

367500

75

75

0

49

DE

 

JA6AHB

347600

79

79

0

44

DE

 

SV3AAF

132000

44

44

0

30

BD

 

Single Operator, Multi-Band 50-1296 Digital

EB5EEO

475200

99

0

99

48

BD

 

EB2FJN

104000

40

0

40

26

BD

 

VK4CDI

20800

16

0

16

13

BD

 

RZ3AED

4900

7

0

7

7

BD

 

Single Operator, Multi-Band 50-1296 Mixed Mode

UA4AQL

82800

36

8

28

23

BD

 

W8PAT

81000

30

3

27

27

AB

 

RK3WWF

32300

19

1

18

17

BDE

 

UT3LL

5600

8

3

5

7

DE

 

WB2SIH

2000

5

1

4

4

BD

 

Single Operator, Multi-Band 2.3 GHz And Up

F2TU

193800

51

51

0

38

FHI

 

ES5PC

68200

31

31

0

22

FH

 

Single Operator, All Band Analog

RW1AW

1513200

156

156

0

97

BDEFI

 

G3LTF

1424000

160

160

0

89

BDEFG

 

DF3RU

972400

143

143

0

68

DEF

 

WA6PY

972000

120

120

0

81

BDEFI

 

SM3AKW

810700

121

121

0

67

BDEF

 

DL4MEA

499800

102

102

0

49

EF

 

IW2FZR

330000

75

75

0

44

EF

 

F5JWF

198000

55

55

0

36

EFI

 

W5LUA

183300

47

47

0

39

EFGH

 

IQ4DF

180200

53

53

0

34

EI

 

NA4N

140800

44

44

0

32

EF

 

JA4BLC

101400

39

39

0

26

EF

 

Single Operator, Single Band 50 MHz Digital

PE1BTX

48600

27

0

27

18

A

 

K1SG

1600

4

0

4

4

A

 

K7CW

100

1

0

1

1

A

 

Single Operator, Single Band 50 MHz Mixed

JR6EXN

30400

19

1

18

16

A

 

 

 

 

 

 

 

 

 

Single Operator, Single Band 144 MHz Analog

LZ2US

284900

77

77

0

37

B

 

F3VS

210800

68

68

0

31

B

 

OK1MS

189000

63

63

0

30

B

 

LA8YB

132300

49

49

0

27

B

 

UR5LX

89100

33

33

0

27

B

 

YO2AMU

88800

37

37

0

24

B

 

IK2DDR

79800

38

38

0

21

B

 

K6PF

42500

25

25

0

17

B

 

JHWJF

40600

29

29

0

14

B

 

RA3EC

24700

19

19

0

13

B

 

9A9B

12600

14

14

0

9

B

 

DL8UCC

11000

11

11

0

10

B

 

DG5CST

5600

8

8

0

7

B

 

VA3TO

2500

5

5

0

5

B

 

DF1VH

900

3

3

0

3

B

 

SP3XBO

900

3

3

0

3

B

 

SM1MUT

400

2

2

0

2

B

 

KB2YCC

100

1

1

0

1

B

 

HA8V

100

1

1

0

1

B

 

Single Operator, Single Band 144 MHz Digital

KB8RQ

1245600

173

0

173

72

B

 

EA3BB

236800

64

0

64

37

B

 

LU1CGB

236000

59

0

59

40

B

 

OK1UGA

204000

60

0

60

34

B

 

RA3GES

153600

48

0

48

32

B

 

HAHO

105000

35

0

35

30

B

 

OK1KKD

96100

31

0

31

31

B

 

EB1DNK

77000

35

0

35

22

B

 

K5GMX

52500

25

0

25

21

B

 

PA3ECU

36000

24

0

24

15

B

 

W9JN

30400

19

0

19

16

B

 

NF2V

28800

18

0

18

16

B

 

YO3DMU

18000

18

0

18

10

B

 

AF4JF

10000

10

0

10

10

B

 

SP2NJI

7200

9

0

9

8

B

 

WA4EWV

4900

7

0

7

7

B

 

CT1DHM

4200

7

0

7

6

B

 

CT1EKD

3600

6

0

6

6

B

 

LZ1LP

3500

7

0

7

5

B

 

K5AM

2000

5

0

5

4

B

 

RA3LW

400

2

0

2

2

B

 

W8UJX

100

1

0

1

1

B

 

DJMY

100

1

0

1

1

B

 

SP6HED

100

1

0

1

1

B

 

EA1FBU

100

1

0

1

1

B

 

Single Operator, Single Band 144 MHz Mixed Mode Assisted

K9DX

1339600

197

32

165

68

B

 

RX1AS

1043700

147

12

135

71

B

 

AO6VQ

947200

148

0

148

64

B

 

7K3LGC

754600

154

3

151

49

B

 

WQ5S

726000

121

6

115

60

B

 

AO5SE

631300

107

0

107

59

B

 

N5KDA

608400

117

12

105

52

B

 

K4SV

577700

109

0

109

53

B

 

SM5CUI

530100

93

5

88

57

B

 

N6CW

400500

89

8

81

45

B

 

WB9PNU

262200

69

0

69

38

B

 

DC2MW

222000

60

0

60

37

B

 

PY4OG

188700

51

1

50

37

B

 

KKP

184800

56

5

51

33

B

 

WA3BZT

148800

48

0

48

31

B

 

DL2FCN

128800

46

5

41

28

B

 

PA3CWN

92000

46

32

14

20

B

 

DL2LAH

85000

34

2

32

25

B

 

KL7UW

76800

32

0

32

24

B

 

I2RV

70400

32

3

29

22

B

 

YU7XL

52700

31

4

27

17

B

 

DK5WL

49400

26

1

25

19

B

 

JS3CTQ

47500

25

0

25

19

B

 

SM5CFS

21600

18

0

18

12

B

 

RA3WDK

18700

17

0

17

11

B

 

7Z1SJ

16500

15

0

15

11

B

 

W2DBL

7000

10

0

10

7

B

 

JJ3JHP

5600

8

0

8

7

B

 

VE5UF

5600

8

0

8

7

B

 

EA5ADH

2500

5

0

5

5

B

 

K7XC

400

2

0

2

2

B

 

JE1NTL

300

3

0

3

1

B

 

EA5MT

100

1

0

1

1

B

 

Single Operator, Single Band 144 MHz Mixed Mode Unassisted

RU1AA

2618700

301

60

241

87

B

 

W3SZ

792000

132

14

118

60

B

 

RA6DA

534100

109

13

96

49

B

 

EA2AGZ

523200

109

7

102

48

B

 

YU7AA

514800

117

114

3

44

B

 

IK7EZN

415800

99

5

94

42

B

 

I3EVK

409200

93

28

65

44

B

 

K1CA

393600

82

6

76

48

B

 

JM1GSH

173600

56

2

54

31

B

 

UA4NX

45000

25

0

25

18

B

 

RA4NAG

600

3

1

2

2

B

 

Single Operator, Single Band 432 MHz Analog

DL9KR

230400

72

72

0

32

D

 

UA3PTW

198400

64

64

0

31

D

 

I1NDP

122500

49

49

0

25

D

 

FR5DN

92000

40

40

0

23

D

 

JJ1NNJ

85800

39

39

0

22

D

 

RW3PX

77000

35

35

0

22

D

 

KRZ

70400

32

32

0

22

D

 

W8TXT

65100

31

31

0

21

D

 

K1FO

60800

32

32

0

19

D

 

UT2EG

56000

28

28

0

20

D

 

JA9BOH

42500

25

25

0

17

D

 

SM3JQU

27000

18

18

0

15

D

 

DL7UDA

27000

18

18

0

15

D

 

JH4JLV

22400

16

16

0

14

D

 

KL7HFQ

14400

12

12

0

12

D

 

YO2IS

8000

10

10

0

8

D

 

Single Operator, Single Band 432 MHz Digital

JHTOG

100

1

0

1

1

D

 

Single Operator, Single Band 432 MHz Mixed Mode Assisted

KE2N

52800

24

11

13

22

D

 

OK1TEH

2000

5

2

3

4

D

 

Single Operator, Single Band 1296 MHz Analog

K9SLQ

356000

89

89

0

40

E

 

OK1DFC

334400

88

88

0

38

E

 

LA9NEA

281200

76

76

0

37

E

 

K2DH

155000

50

50

0

31

E

 

IK3COJ

142800

51

51

0

28

E

 

RA3AQ

135200

52

52

0

26

E

 

JR4AEP

81900

39

39

0

21

E

 

AL7RT

77700

37

37

0

21

E

 

SM5LE

42500

25

25

0

17

E

 

JH5LUZ

39100

23

23

0

17

E

 

JF3HUC

38400

24

24

0

16

E

 

EA3UM

33300

37

37

0

9

E

 

JH1KRC

27000

18

18

0

15

E

 

JA4LJB

23800

17

17

0

14

E

 

W9IIX

100

1

1

0

1

E

 

Single Operator, Single Band, 1296 MHz, Mixed Mode, Assisted

G4CCH

514800

117

97

20

44

E

 

Single Operator, Single Band 1296 MHz Mixed Unassisted

PA3FXB

20400

17

11

6

12

E

 

Single Operator, Single Band 2.3 GHz

SP6GWN

900

3

3

0

3

F

 

Single Operator, Single Band 5.7 GHz

OK1CA

3600

6

6

0

6

H

 

Multi Operator, Multi-Band 50-1296 Analog

SP6JLW

460600

94

94

0

49

DE

SP6JLW, SP6OPN

Multi Operator, Multi-Band 50-1296 Mixed Mode

N9JIM*

1456000

182

92

90

80

BE

N9JIM, W6BY, N5XSA, KK6MK, AD6IW, WD6CDE, WB8VAO, K6KLY

K4EME

428400

84

26

58

51

BD

K4EME, AD4TJ, KR4V

Multi Operator, Multi-Band 2.3 GHz and Up

OK1KIR

127100

41

41

0

31

FHI

OK1KIR, OK1DAI, OK1DAK, OK1VAO

Multi Operator, All Band Mixed Mode

K1JT

4253400

306

146

160

139

BDEF

K1JT, K2UYH, K2LNS, K1DS, KC2TA, N4HY, AB2KT

Multi Operator, Single Band 144 MHz Mixed Mode Assisted

IK1UWL

1724800

224

20

204

77

B

IK1UWL, I1ANP

KA1VHF

319800

82

0

82

39

B

KA1VHF, KA8HOK

F5KCH

220500

63

4

59

35

B

F5KCH, F6HEO, F1UKQ, FEUI, F4FPK

WW8M

81000

30

6

24

27

B

WW8M, KB8U, NE8I

Multi Operator, Single Band 144 MHz Mixed Mode Unassisted

YO9FRJ

881600

152

31

121

58

B

YO7FRJ, YO9AFE

AA1YN

132000

44

2

42

30

B

AA1YN, NS1O

Multi Operator, Single Band 432 MHz Mixed Mode Unassisted

OH2PO

360400

106

70

36

34

D

OH2PO, OH2HYT, OH6DD

Multi Operator, Single Band 1296 MHz Analog

IZ1BPN

207700

67

67

0

31

E

IZ1BPN, IK1MTZ

SM3LBN

195300

63

63

0

31

E

SM3LBN, SM3EVR

SKUX

186000

60

60

0

31

E

SMMXO, SMDFP, SMEPO

ON4BCB

168200

58

58

0

29

E

ON4BCB, ON4CO, ON4CCM

LA2Z

131600

47

47

0

28

E

LA2PKA, LA5SKA, LA6MV, LA7VH

N2UO

95000

38

38

0

25

E

N2UO, W9EQ

UA3DJG

26600

19

19

0

14

E

UA3DJG, UA3ATS, RA3WND

Multi Operator, Single Band 1296 MHz Mixed Mode Assisted

RD3DA

183000

61

55

6

30

E

RD3DA, RU3ACE

VA7MM

122200

47

38

9

26

E

VE7CMK, VE7CNF

Multi Operator, Single Band 2.3 GHz

HB9Q

37800

21

21

0

18

F

HB9CRQ, HB9DRI, HB9EHJ, HB9JAW

WD5AGO

34000

20

20

0

17

F

WD5AGO, KC5HRW

 

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sending_T_rxing_U.mp3

 

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PY2BS QSO

 

 

 

 

 

 

 

 

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SM5LE  echos:

Finally; I do hear my own echos by ear, occasionally at least hr some mp3s :

eko_1_OK.mp3    eko_2_OK.mp3    eko_3_OK.mp3

Super best JT echos !  Q=10 @ N=5  , @  -1.1 dB DGRD !

 Echo_1 in freq. and time display , ~350 Hz BW:            

-----------------------------------------------------------------------------------------------------------------------------------------------

 

PI9CAM Vader Jacob 23 cm by PA3FXB.mp3

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kildal1997.pdf

 

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YES !  SM0FOB and SM5LE gang did it !

First 1.8m/75W/mesh-feed   EME QSO was  G4CCH , tnx Howard.

Later on it was OK1DFC /CW and JT  and also ES5PC on JT.

 

OK1DFC CW on 1.8 m dish here  (mp3 file)  : ok1dfc_at_SM0FOB.mp3

 

 

 

 

 

This is a happy Sven SM5LE and Kjell SM0FOB (behind the camera) in my garage radio shack.

 

More abt "Mesh Feed" here :  http://web.telia.com/~u14901546/home_page_no_3.htm#Meshfeed

 

 

cm scale for plotting focus cm vs. ground noisecold/sky.

 

 

Mesh feed mounted. ("undercover")

SM0FOBs 1.8m dish.

 LNA for SM0FOB EME attempt :

Sven thinking ... I will take my  spare (prototype) cavity-LNA and the FOBs "LNA Technology" as 2nd stage...

That will end up with ~36dB gain and 0.38 dB NF , that will do for now ...

the ARRL contest 18-19 October getting closer and closer ...

1st cavity-LNA and coax-relay :   #fig11

2nd: Some DC-conversion unit for bias etc : #fig2

3rd soldering a box : #fig3    #fig4    #fig5  #fig6    

... and togrher with mesh-septum :   #fig1    #fig7   #fig8     

 

Going from 12x12 mm mesh to mosquito mesh does appr.  +1 dB, for both TX and RX ! 1dB is like going from 90W to 110W TX power. The mosquito mesh is fitted outside the 12x12mm mesh with a hot glue-pistol and adjusted with a mould to get the right shape . #m1      #m2    #m4

 

Data for the mesh here (sorry for Swedish) #m5    

 The cost for the mesh is about 50 EUR for one 2m dish.

 

 

SM0FOB and SM5LE gang are trying to get the 1.8 m dish , @ Kjells QTH , to work , in both RX and TX mode !

(RX mode already tested with a Helix feed)
A valiant attempt to revive the feeder made of mesh will be made.

We hope to be ready for the ARRL contest 18-19 October.
Follow the exciting story, here ...

 

 

Today measured sun noise. Sun very close to trees.

 

Measured Y-value for sun was :  5.4 dB  (1.8m dish) @ flux 71

 

 

 

Measured ground noise to cold sky and moved the mesh-feed forth and back to find focus point.

(The sun was not high up enough for doing sun/cold sky measurements.)

"0 cm" is the "theoretic cm" from formula 0.4=F/1.8 , in this case 72 cm.

The smaller the dish the closer to dish ... is Septum feed really the best for very small dishes ?

The length of feed is almost the same as the focus length ... ???

 

 

 

 

 

Kjells  homepage here : http://sm0fob.blogspot.com/

 

 

Announcement : The small EME station at SM0FOB is closed. Dismounting already in progress.

It was just an experimental set up for testing the mesh feed , and also Kjell was on the moon for a short time.

 

 

 

 

 

fig9

 

 

fig7

 

fig5

 

fig4

 

fig3

 

fig2

 

fig11

 

fig8

 

fig6

 

 

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3_echo_samples_500W.mp3

 

CQ_ON7UN.mp3

 

-----------------------------------------------------------------------------------------------------------------------------------------------

 

 

m5

 

m4

 

m2

 

m1

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Expanded dish ;  was f/d=0.35 at 3.05m diameter, now it is f/d=0.30 at 3.6m dia.

 

 

-----------------------------------------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SM5LE_SSB.mp3

-----------------------------------------------------------------------------------------------------------------------------------------------

 

WSJT JT65c WAV-file :     W7UPF_JT65C.WAV    (use "save target"  ["spara som"] and open from inside WSJT)

-----------------------------------------------------------------------------------------------------------------------------------------------

 

-----------------------------------------------------------------------------------------------------------------------------------------------

 

Measured focal maximum, vs. cm from theoretic , here called "0 cm".

(0 cm = 75 cm in my case , from bottom of the dish to the edge of septum [front face]).

Dish diameter 2.2 m and F/D 0.34.

 

The vertical scale is dB in WSJT echo-test and horizontal scale is deviation from zero (0) cm.

 

The dB value is mean value from # 20 echo transmissions.   Measurements from two (2) different occasions.

One can see how easy it is to loose 2-3 dB if only cm is used !

In my case (small dish) the Septum should be 3-4 cm closer to dish than theoretic !

 

If I do the measurement / adjustment using  echoes, the dish gain comes in the equation

twice, its more critical than using sun noise and so I get a sharper curve.

 

I will make some more measurements at next moon passage , making more points to get more precise curve. Maybe 0.5 cm per step.

 

 

 

 

 

 

 

-------------------------------------------------------------------------------------------------------------------------------

 

 

To days picture : 

 

 

 

-------------------------------------------------------------------------------------------------------------------------------

 

 

 

 

Finally; I do hear my own echos by ear, occasionally at least hr some mp3s :

eko_1_OK.mp3    eko_2_OK.mp3    eko_3_OK.mp3  

 Echo_1 in freq. and time display , ~350 Hz BW:            

-------------------------------------------------------------------------------------------------------------------------------

 SSB voice clip  ,G4CCH   Charlie Charlie Hotel.mp3

-------------------------------------------------------------------------------------------------------------------------------

 Sun shadow from choke ring adjusted !  PICTURES CLICK HERE

-------------------------------------------------------------------------------------------------------------------------------

 

 

 

       

 

   

 

   

 

 

 

 

 

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Summer 2006 - My N.A and S.A. window full of "greengrocery"                                   January 2007.

 

Mesh spetum feed and all pictures abt TX RX etc:  PICTURES CLICK HERE

All pictures abt dish here (this is a Picasaweb page) :  DISH AND SHACK KLICK HERE

CW and SSB EME sound recordings 2.2 meter dish here :  SOUND CLICK HERE

WSJT WAV files here : WAV CLICK HERE

-----------------------------------------------------------------------------------------------------------------------------------------------

  

My  horizon.     All numbers are degrees.   I need decl. > 10 dgrd.

 

-----------------------------------------------------------------------------------------------------------------------------------------------

Echotest after new LNA. The "Cavity LNA".

Indicating   ~1 dB improvement !

Meanvalue sig. -23.4 dB with Dgrd -0.8 dB

---------------------------------------------

WSJT echo test wtih old "Hairpin LNA" 

Meanvalue sig. -24.2 dB with Dgrd -0.6 dB

 

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The conds the 8-9 Sept was bad ...

The mean value for 8 Sept is -28.47 dB and 12 July is -23.42 dB that's  a difference of 5 dB but the Dgrd diff. only -0.8 dB !   It was bad conds the 7-8 Sept.  Hi

 

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Echo test with new Cavity LNA

(Compared with "old Hairpin LNA")

aprox. 1 dB improvements !

 

 

Sun noise measurements. Difference between old "hair-pin" LNA and the new cavity LNA:

 

  Sun noise in dB Solar flux comments
Old "hair-pin" LNA 6.7 74 mean value for several month
New cavity LNA 8.1 78 only two days measurements

 

aprox. 1.4 dB improvements ! note: flux 74 and 78 difference is 0.2 dB

 

The groundnoise to cold sky did rise from 4.5 to 5.0 dB

 

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Echo testing with WSJT (TX:ed with WSJT4 and RX:ed with WSJT6).

Left "hairpin" LNA (NF=0.4dB) and right cavity LNA (NF=0.3 dB).

 

 

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Measured the difference for an OK1DFC septum feed with and without choke ring, on my 2.2 m dish.

Also measured was ; with poor, almost zero, grounding for the ring on the septum feed.

The outcome from these measurements must be that it is an advantage to have a choke ring also for a 2.2 meter dish.

 

 

All in dB

(Choke ring not grounded)

Septum feed alone

Choke ring grounded

Difference

Comments

Sun noise

(5.5)

5.4

6.3

0.9

 Solar flux 72.5.

Ground noise vs. cold sky

(3.6)

3.2

4.6

1.4

 Grond noise are trees in this case.

WSJT echo

(-29.4)

-28.2

-26.5

1.7

 Both TX and RX are involved.

 Note: Test equipment; Attenuator R&S RF step Attenuator 0.1 dB step and AC voltmeter HP400FL.

Measuring BW ~5 kHz (max for TS-2000) AGC off and RF gain middle , AF gain almust max.

The WSJT echo test is mean value for #20 TX/RX cycle (also note ; higher number [in -dB] is weaker signal).

The diameter for the ring is 42 cm and deep 12cm and possision behind rim 0(zero) λ .

 

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sm5le_eme_voice.mp3

 

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