The problem of Magnetic loop is:
100 A current -> every mOhm of resistance will destroy a lot of enjoyment
jedes mOhm Widerstand zerstört eine Menge Spaß.
5000 V voltage -> the capacitor needs high interspaces and also: No mOhm´s
der Kondensator braucht viel Plattenabstand und auch: Keine mOhm
Vacuum capacitors are very expensive and not all of them can take 100 A current
Vakuum Kondensatoren sind sehr teuer und nicht jeder verträgt 100 A
My solution:
Loop 1.8 m diameter, 18 mm Copper -pipe, for warm-water installation from home improvement store
Loop 1,8 m Durchmesser, 18 mm Warmwasser Kupferrohr vom Baumarkt
Capacitor = Two anodized aluminium heat-sinks 180 x 100 x 50 mm -> together 5 mm interspaces
Kondensator = zwei eloxierte Alu Kühlkörper ergibt zusammen 5 mm Plattenabstand
works from 5 to 14 MHz
Capacitor (heat-sinks) at 7 MHz SWR 1.0
Capacitor (heat-sinks) at 10 MHz SWR 1.1
Capacitor (heat-sinks) at 14 MHz SWR 1.4 ( I need to change the feeding )
Important Connection
wichtige Verbindung
My lazy feeding -> Gamma-Match 500 mm
I tried a feeding Loop -> bad SWR at all frequencies - geht doch -
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Timestamp
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Call
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MHz
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SNR
|
Pwr
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Reporter
|
RGrid
|
km
|
az
|
|
2010-01-29 15:04
|
DC5BN
|
7.040163
|
-17
|
5
|
ZL2RX
|
RE68pr
|
18270
|
48
|
|
2010-01-29 14:48
|
ZL2RX
|
7.040131
|
-16
|
10
|
DC5BN
|
JO42jx
|
18270
|
323
|
|
2010-01-30 11:46
|
DC5BN
|
10.140223
|
-14
|
5
|
ZL2FT
|
RF70mb
|
18229
|
41
|
|
Timestamp
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MHz
|
SNR
|
Pwr
|
Reporter
|
RGrid
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km
|
az
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|
2010-01-22 18:26
|
7.040.050
|
-24
|
5
|
VK7FGMH
|
QE37na
|
16774
|
87
|
|
2010-01-30 12:40
|
10.140248
|
-26
|
10
|
VK2DAP
|
QF56oe
|
16370
|
69
|
|
2010-01-16 15:48
|
7.040.130
|
-19
|
5
|
VK4YEH
|
QG62ll
|
15935
|
60
|
|
2010-01-22 22:20
|
7.040.159
|
-16
|
10
|
VK6BN
|
OF88ac
|
13898
|
98
|
|
2010-01-17 15:22
|
14.097.018
|
-18
|
5
|
W1CDO
|
DM73
|
8480
|
308
|
|
2010-01-17 14:52
|
14.097.034
|
-26
|
5
|
WV5L
|
DM65pg
|
8402
|
310
|
|
2010-01-22 22:46
|
7.040.035
|
-24
|
10
|
N0GSZ
|
EM10ch
|
8367
|
301
|
|
2010-01-22 16:08
|
14.097.150
|
-14
|
5
|
W5EMC
|
EM10cl
|
8352
|
301
|
|
2010-01-22 15:38
|
14.097.069
|
-24
|
5
|
W1MNK
|
EL87uv
|
7637
|
288
|
|
2010-01-22 12:16
|
10.140.197
|
-15
|
5
|
W3HH
|
EL89
|
7551
|
290
|
|
2010-01-17 14:28
|
14.097.060
|
-14
|
5
|
N4AU
|
EM62vp
|
7479
|
295
|
|
2010-01-17 14:44
|
14.097.036
|
-23
|
5
|
AI4RY
|
EM72go
|
7437
|
294
|
|
2010-01-17 14:28
|
14.097.053
|
-24
|
5
|
W3PM
|
EM64or
|
7339
|
296
|
|
2010-01-17 08:18
|
7.040.060
|
-21
|
5
|
KE4JUC
|
EM91bo
|
7299
|
291
|
|
2010-01-22 22:46
|
7.040.036
|
-17
|
10
|
K4DLI
|
EM74
|
7254
|
295
|
|
2010-01-22 16:08
|
14.097.145
|
-22
|
5
|
VE6OG
|
DO33fn
|
7026
|
326
|
|
2010-01-17 14:28
|
14.097.047
|
-13
|
5
|
WC9C
|
EM69hh
|
6992
|
300
|
|
2010-01-22 22:20
|
7.040.154
|
-23
|
10
|
N8JK
|
EM79
|
6843
|
299
|
|
2010-01-22 15:38
|
14.097.093
|
-25
|
5
|
W0GHZ
|
EN34lx
|
6839
|
308
|
|
2010-01-17 15:22
|
14.097.031
|
-20
|
5
|
N9XG
|
EN60vl
|
6830
|
300
|
|
2010-01-17 14:52
|
14.097.039
|
-23
|
5
|
K3SIW
|
EN52ta
|
6828
|
303
|
|
2010-01-22 22:20
|
7.040.153
|
-21
|
10
|
NU8D
|
EM79uh
|
6812
|
298
|
|
2010-01-22 15:16
|
14.097.069
|
-12
|
5
|
K0AWU
|
EN37ed
|
6692
|
310
|
|
2010-01-22 14:16
|
14.097.081
|
-16
|
5
|
WB8HWF
|
EN80tb
|
6639
|
298
|
|
2010-01-17 08:18
|
7.040.048
|
-18
|
5
|
W8LIW
|
EN81go
|
6580
|
300
|
|
2010-01-22 22:46
|
7.040.033
|
-12
|
10
|
W8LIW
|
EN81go
|
6580
|
300
|
|
2010-01-22 14:04
|
14.097.077
|
-16
|
5
|
K4RKQ
|
FM08sd
|
6554
|
294
|
|
2010-01-22 13:32
|
10.140.190
|
-22
|
5
|
K8CT
|
EN83ce
|
6474
|
301
|
|
2010-01-22 22:46
|
7.040.052
|
-24
|
10
|
KD0AR
|
EN90rw
|
6460
|
297
|
|
2010-01-17 09:24
|
10.140.193
|
-28
|
5
|
KB3EDF
|
FM18rh
|
6423
|
292
|
|
2010-01-17 09:24
|
10.140.199
|
-21
|
5
|
W3BCW
|
FM19ka
|
6404
|
293
|
