Övsv Österreichsicher versuchssenderverband · ant. 1 : 64 transformer for end fed antennas 3.5...
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![Page 1: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/1.jpg)
ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND WWW.OEVSV.AT
![Page 2: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/2.jpg)
© ÖVSV
ÖVSV ÖSTERREICHSICHER VERSUCHSSENDEVERBAND WWW.OEVSV.AT
2
PRINCIPLEEnd-fed High-Z Dipole
![Page 3: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/3.jpg)
© ÖVSV 3
Classicdipoleantenna
![Page 4: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/4.jpg)
© ÖVSV 4
Classicdipoleantenna
![Page 5: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/5.jpg)
© ÖVSV 5
Classicdipoleantenna
Needs long coaxial cable, feedpoint quite heavy ….
![Page 6: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/6.jpg)
© ÖVSV 6
Windomantenna
![Page 7: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/7.jpg)
© ÖVSV 7
Endfedhigh-zantenna
![Page 8: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/8.jpg)
© ÖVSV 8
Endfedhigh-zantenna
![Page 9: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/9.jpg)
© ÖVSV 9
Endfedhigh-zantenna
![Page 10: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/10.jpg)
© ÖVSV 10
Endfedhigh-zantenna
Someone built this:
![Page 11: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/11.jpg)
© ÖVSV 11
Endfedhigh-zantenna
Here is our luxury YOTA version:
![Page 12: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/12.jpg)
© ÖVSV 12
Endfedhigh-zantenna
The first twowindings
![Page 13: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/13.jpg)
© ÖVSV 13
Endfedhigh-zantenna
Solder theprimary coilto the PL-socket
![Page 14: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/14.jpg)
© ÖVSV 14
Endfedhigh-zantenna
Capacitor installed.
Cable ties hold thetoroid in place.
![Page 15: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/15.jpg)
© ÖVSV 15
Endfedhigh-zantenna
Antenna wireconnected.
Secured withcable tie.
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© ÖVSV 16
Endfedhigh-zantenna
Testing theantenna withan analyzer.
![Page 17: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/17.jpg)
© ÖVSV 17
Endfedhigh-zantenna
Testing theantenna withan analyzer.
![Page 18: ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND · ant. 1 : 64 transformer for end fed antennas 3.5 -30 MHz trx 2 X 7 turns Inun cul on FT240-43 2 turns to ground 100pF 1000V REGION](https://reader030.vdocuments.site/reader030/viewer/2022040715/5e1e8ade3b6e2616b8022e61/html5/thumbnails/18.jpg)
ÖVSV ÖSTERREICHSICHER VERSUCHSSENDERVERBAND WWW.OEVSV.AT
READY!Please us it with Raspberry PiWSPR beacon