Difference between revisions of "Antennas"

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m (Updated link for VK4ADC Turnstile antennas)
 
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{| class="wikitable" style="width: 100%;"
 
{| class="wikitable" style="width: 100%;"
 
! style="width: 49%" |
 
! style="width: 49%" |
=== Commercial Antennas ===
+
===Commercial Antennas===
 
!
 
!
 
! style="width: 49%" |
 
! style="width: 49%" |
=== Homebrew Antennas ===
+
===Homebrew Antennas===
 
|-
 
|-
 
|[[File:WiMo TA-1.gif|left|frameless|160x160px]]
 
|[[File:WiMo TA-1.gif|left|frameless|160x160px]]
  
==== WiMo TA-1 ====
+
====WiMo TA-1====
 
VHF Turnstile
 
VHF Turnstile
  
Line 26: Line 26:
 
[https://network.satnogs.org/stations/129/ 129 - Chabot Space And Science Center]
 
[https://network.satnogs.org/stations/129/ 129 - Chabot Space And Science Center]
  
* [https://www.wimo.com/scanner-antennas_e.html#004 Product link]
+
[https://network.satnogs.org/stations/896/ 896 - KJ6DZB]
* [http://oz9aec.net/antennas/air-tests-wimo-ta-1-turnstile-antenna OZ9AEC Review]
+
 
 +
*[https://www.wimo.com/scanner-antennas_e.html#004 Product link]
 +
*[http://oz9aec.net/antennas/air-tests-wimo-ta-1-turnstile-antenna OZ9AEC Review]
 
|
 
|
 
|[[File:VHF Turnstile.jpg|left|frameless|100x100px]]
 
|[[File:VHF Turnstile.jpg|left|frameless|100x100px]]
  
==== Turnstile ====
+
====Turnstile====
 
Estimated cost: TBD
 
Estimated cost: TBD
  
Line 42: Line 44:
 
[https://network.satnogs.org/stations/16/ 16 - VK5QI-70CM]
 
[https://network.satnogs.org/stations/16/ 16 - VK5QI-70CM]
  
* SatNOGS Turnstile Antenna (TBD)
+
*SatNOGS Turnstile Antenna (TBD)
* [https://www.vk4adc.com/web/vhfuhf-projects/26-multiband-ants/156-turnstile-vhf-uhf-fds VK4ADC instructions for VHF and UHF Turnstile antennas]
+
*[https://vk4adc.com/web/index.php/vhfuhf-projects/26-multiband-ants/156-turnstile-vhf-uhf-fds VK4ADC instructions for VHF and UHF Turnstile antennas]
* [https://www.aeronetworks.ca/2017/12/amateur-satcom-rx-antenna-for-2-meter.html Six-element tape-measure VHF Turnstile with modeled patterns (could be used as directional) by Herman Oosthuysen]
+
*[https://www.aeronetworks.ca/2017/12/amateur-satcom-rx-antenna-for-2-meter.html Six-element tape-measure VHF Turnstile with modeled patterns (could be used as directional) by Herman Oosthuysen]
 +
*[https://iz7boj.wordpress.com/2018/12/02/double-turnstile-construction-for-satellites-receiving-in-435mhz-band/ Double turnstile construction for 435MHz]
 
|-
 
|-
 
|[[File:M2 Eggbeaters.png|left|frameless|100x100px]]
 
|[[File:M2 Eggbeaters.png|left|frameless|100x100px]]
  
==== M2 Eggbeater ====
+
====M2 Eggbeater====
 
VHF / UHF Eggbeater Antennas
 
VHF / UHF Eggbeater Antennas
  
Line 59: Line 62:
 
[https://network.satnogs.org/stations/77/ 77 - N5CNB-VHF]
 
[https://network.satnogs.org/stations/77/ 77 - N5CNB-VHF]
  
* [https://www.m2inc.com/FGEB144RK2M Product link for VHF]
+
*[https://www.m2inc.com/FGEB144RK2M Product link for VHF]
* [https://www.m2inc.com/FGEB432RK70CM Product link for UHF]
+
*[https://www.m2inc.com/FGEB432RK70CM Product link for UHF]
* [https://www.m2inc.com/FGSATPACK1 Product link for combination package]
+
*[https://www.m2inc.com/FGSATPACK1 Product link for combination package]
 
|
 
|
 
|[[File:VHF EZ-Lindenblad.png|left|frameless|112x112px]]
 
|[[File:VHF EZ-Lindenblad.png|left|frameless|112x112px]]
  
==== Lindenblad ====
+
====Lindenblad====
 
Estimated cost: TBD
 
Estimated cost: TBD
  
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[https://network.satnogs.org/stations/442/ 442 - DL1UNX-FFB VHF]
 
[https://network.satnogs.org/stations/442/ 442 - DL1UNX-FFB VHF]
  
* [https://www.amsat.org/wordpress/wp-content/uploads/2015/08/An-EZ-Lindenblad-Antenna-for-2-Meters2.pdf AA2TX EZ-Lindenblad design can be found at this AMSAT PDF]
+
*[https://www.amsat.org/wordpress/wp-content/uploads/2015/08/An-EZ-Lindenblad-Antenna-for-2-Meters2.pdf AA2TX EZ-Lindenblad design can be found at this AMSAT PDF]
* [https://www.qsl.net/py4zbz/DCA.pdf KD6JDJ instructions can be found at this QST PDF]
+
*[https://www.qsl.net/py4zbz/DCA.pdf KD6JDJ instructions can be found at this QST PDF]
* [https://www.amsat.org/articles/w6shp/lindy.html W6SHP instructions for VHF and UHF Lindenblad]
+
*[https://www.amsat.org/articles/w6shp/lindy.html W6SHP instructions for VHF and UHF Lindenblad]
 
|-
 
|-
 
|[[File:Winkler Turnstile.jpg|left|frameless|100x100px]]
 
|[[File:Winkler Turnstile.jpg|left|frameless|100x100px]]
  
==== Winkler Turnstile ====
+
====Winkler Turnstile====
 
VHF/UHF Turnstile Antennas
 
VHF/UHF Turnstile Antennas
  
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<u>Some SatNOGS stations using this antenna:</u>
 
<u>Some SatNOGS stations using this antenna:</u>
  
TBD
+
[https://network.satnogs.org/stations/47/ 47 - DB0RV]
  
* [http://www.winklerantennenbau.de/sonst.htm Pricing page]
+
*[http://www.winklerantennenbau.de/sonst.htm Pricing page]
* [http://www.winklerantennenbau.de/kreuz137.htm Product link for VHF]
+
*[http://www.winklerantennenbau.de/kreuz137.htm Product link for VHF]
* [http://www.winklerantennenbau.de/kreuz446.htm Product link for UHF]
+
*[http://www.winklerantennenbau.de/kreuz446.htm Product link for UHF]
 
|
 
|
 
|[[File:UHF Paralindy.jpg|left|frameless|100x100px]]
 
|[[File:UHF Paralindy.jpg|left|frameless|100x100px]]
  
==== UHF Parasitic Lindenblad ====
+
====UHF Parasitic Lindenblad====
 
Estimated cost: $15 (with access to a 3D printer)
 
Estimated cost: $15 (with access to a 3D printer)
  
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[https://network.satnogs.org/stations/187/ 187 - K3LRD UHF Lindenblad]
 
[https://network.satnogs.org/stations/187/ 187 - K3LRD UHF Lindenblad]
  
* [https://www.amsat.org/wordpress/wp-content/uploads/2014/01/70ParaLindy.pdf Instructions can be found at this AMSAT PDF by AA2TX]
+
*[https://www.amsat.org/wordpress/wp-content/uploads/2014/01/70ParaLindy.pdf Instructions can be found at this AMSAT PDF by AA2TX]
 
|-
 
|-
 
|
 
|
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|[[File:Quadrifilar Antennas.png|left|frameless|100x100px]]
 
|[[File:Quadrifilar Antennas.png|left|frameless|100x100px]]
  
==== Quadrifilar Helix Antenna (QFH) ====
+
====Quadrifilar Helix Antenna (QFH)====
 
Estimated cost: TBD
 
Estimated cost: TBD
  
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[https://network.satnogs.org/stations/183/ 183 - SPUTNIX-R2ANF-VHF/UHF-stationary]
 
[https://network.satnogs.org/stations/183/ 183 - SPUTNIX-R2ANF-VHF/UHF-stationary]
  
* [http://www.g4ilo.com/qfh.html G4ILO QFH Instructions]
+
[https://network.satnogs.org/stations/890/ 890 - Valpo WIRED Lab 3]
* [https://www.aeronetworks.ca/2017/12/parasitic-quadrifilar-helical-antenna.html VHF Model/patterns for QFH by Herman Oosthuysen]
+
 
* [http://jcoppens.com/ant/qfh/calc.en.php QFH Calculator by ON6JC/LW3HAZ]
+
*[http://www.g4ilo.com/qfh.html G4ILO QFH Instructions]
* [https://community.libre.space/t/an-easy-3d-printed-quadrifilar-helix-antenna/1487 3D Printed UHF QFH Antenna by surligas]
+
*[https://www.aeronetworks.ca/2017/12/parasitic-quadrifilar-helical-antenna.html VHF Model/patterns for QFH by Herman Oosthuysen]
 +
*[http://jcoppens.com/ant/qfh/calc.en.php QFH Calculator by ON6JC/LW3HAZ]
 +
*[https://community.libre.space/t/an-easy-3d-printed-quadrifilar-helix-antenna/1487 3D Printed UHF QFH Antenna by surligas]
 
|-
 
|-
 
|
 
|
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|[[File:Vhf moxon turnstile.png|left|frameless|100x100px]]
 
|[[File:Vhf moxon turnstile.png|left|frameless|100x100px]]
  
==== "Turnstiled" Moxon ====
+
===="Turnstiled" Moxon====
 
Estimated cost: TBD
 
Estimated cost: TBD
  
 
<u>Some SatNOGS stations using this antenna:</u>
 
<u>Some SatNOGS stations using this antenna:</u>
  
TBD
+
[https://network.satnogs.org/stations/305/ 305 - VK5KJP-VHF]
 +
 
 +
[https://network.satnogs.org/stations/331/ 331 - VK5KJP-UHF]
  
* [https://sat.fg8oj.com/images/VHFUHFSatelite.pdf Instructions can be found at this QST article by W4RNL]
+
*[https://sat.fg8oj.com/images/VHFUHFSatelite.pdf Instructions can be found at this QST article by W4RNL]
 
|}
 
|}
 
<p></p>
 
<p></p>
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{| class="wikitable" style="width: 100%;"
 
{| class="wikitable" style="width: 100%;"
 
! style="width: 49%" |
 
! style="width: 49%" |
=== Commercial Antennas ===
+
===Commercial Antennas===
 
!
 
!
 
! style="width: 49%" |
 
! style="width: 49%" |
=== Homebrew Antennas ===
+
===Homebrew Antennas===
 
|-
 
|-
 
|[[File:M2 Leopack.png|left|frameless|100x100px]]
 
|[[File:M2 Leopack.png|left|frameless|100x100px]]
  
==== M2 Circularly Polarized Yagis ====
+
====M2 Circularly Polarized Yagis====
 
VHF/UHF Cross-element Yagi
 
VHF/UHF Cross-element Yagi
  
Line 170: Line 177:
 
[https://network.satnogs.org/stations/25/ 25 - N7IPY]
 
[https://network.satnogs.org/stations/25/ 25 - N7IPY]
  
* [https://www.m2inc.com/FG2MCP8A Product link - VHF]
+
[https://network.satnogs.org/stations/834/ 834 - Valpo WIRED Lab 1] - ([https://www.m2inc.com/FG2MCP14 2MCP14] and [https://www.m2inc.com/FG436CP30 436CP30] ~3.3m booms)
* [https://www.m2inc.com/FG436CP16 Product link - UHF]
+
 
* [https://www.m2inc.com/FGLEOPACK Product link - Combo kit]
+
*[https://www.m2inc.com/FG2MCP8A Product link - VHF]
 +
*[https://www.m2inc.com/FG436CP16 Product link - UHF]
 +
*[https://www.m2inc.com/FGLEOPACK Product link - Combo kit]
 
|
 
|
 
|[[File:Cross element UHF yagi.jpg|left|frameless|133x133px]]
 
|[[File:Cross element UHF yagi.jpg|left|frameless|133x133px]]
  
==== Yagi Antennas, Cross-element yagi antennas ====
+
====Yagi Antennas, Cross-element yagi antennas====
 
VHF/UHF directional antenna
 
VHF/UHF directional antenna
  
Line 187: Line 196:
 
TBD
 
TBD
  
* TBD: Assembly instructions
+
*TBD: Assembly instructions
* [https://gitlab.com/librespacefoundation/satnogs/satnogs-antennas/tree/master/Yagi Source code for SatNOGS yagi antenna designs are here].
+
*[https://gitlab.com/librespacefoundation/satnogs/satnogs-antennas/tree/master/Yagi Source code for SatNOGS yagi antenna designs are here].
 
|-
 
|-
 
|[[File:Wimo xquad vhf.jpg|left|frameless|100x100px]]
 
|[[File:Wimo xquad vhf.jpg|left|frameless|100x100px]]
  
==== WiMo X Quad ====
+
====WiMo X Quad====
 
VHF/UHF Cross-element Quad
 
VHF/UHF Cross-element Quad
  
Line 205: Line 214:
 
[https://network.satnogs.org/stations/232/ 232 - VK5QI-AZ/EL]
 
[https://network.satnogs.org/stations/232/ 232 - VK5QI-AZ/EL]
  
* [https://www.wimo.com/xquad-antennas_e.html Product link]
+
*[https://www.wimo.com/xquad-antennas_e.html Product link]
 
|
 
|
 
|[[File:Satnogs helical v1.jpg|left|frameless|100x100px]]
 
|[[File:Satnogs helical v1.jpg|left|frameless|100x100px]]
  
==== Helical Antennas ====
+
====Helical Antennas====
 
UHF circularly polarized directional antenna
 
UHF circularly polarized directional antenna
  
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[https://network.satnogs.org/stations/6/ 6 - Apomahon]
 
[https://network.satnogs.org/stations/6/ 6 - Apomahon]
  
* v4 [https://satnogs.dozuki.com/Guide/Helical+Antenna+v4/11 Assembly instructions]
+
*v4 [https://satnogs.dozuki.com/Guide/Helical+Antenna+v4/11 Assembly instructions]
* [https://ohai.satnogs.org/project/helical-antenna-v5/ v5 Assembly instructions]
+
*[https://ohai.satnogs.org/project/helical-antenna-v5/ v5 Assembly instructions]
* [https://gitlab.com/librespacefoundation/satnogs/satnogs-antennas/tree/master/Helical Source code for SatNOGS helical antenna designs are here.]
+
*[https://gitlab.com/librespacefoundation/satnogs/satnogs-antennas/tree/master/Helical Source code for SatNOGS helical antenna designs are here.]
 
|-
 
|-
 
|[[File:Arrow Portable Yagi.jpg|left|frameless|100x100px]]
 
|[[File:Arrow Portable Yagi.jpg|left|frameless|100x100px]]
  
==== Arrow Dual-band portable yagi ====
+
====Arrow Dual-band portable yagi====
 
VHF/UHF portable yagi
 
VHF/UHF portable yagi
  
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TBD
 
TBD
  
* [http://www.arrowantennas.com/arrowii/146-437.html Product price/ordering link]
+
*[http://www.arrowantennas.com/arrowii/146-437.html Product price/ordering link]
* [http://www.arrowantennas.com/sub/arrowiiyagi.html Product details link]
+
*[http://www.arrowantennas.com/sub/arrowiiyagi.html Product details link]
 
|
 
|
 
|
 
|
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|[[File:Elk Log Periodic.jpg|left|frameless|112x112px]]
 
|[[File:Elk Log Periodic.jpg|left|frameless|112x112px]]
  
==== Elk Log Periodic ====
+
====Elk Log Periodic====
 
VHF/UHF portable yagi
 
VHF/UHF portable yagi
  
Line 251: Line 260:
 
TBD
 
TBD
  
* [https://elkantennas.com/product/dual-band-2m440l5-log-periodic-antenna/ Product link]
+
*[https://elkantennas.com/product/dual-band-2m440l5-log-periodic-antenna/ Product link]
 
|
 
|
 
|
 
|
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<p></p>
 
<p></p>
 
<p>A radome design is available from SatNOGS. This will protect the ground station from the elements in all but extra ordinary conditions. The design can be found [https://gitlab.com/librespacefoundation/satnogs/satnogs-radome/blob/master/satnogs-radome-v1-bom.ods here] and construction guide [https://ohai.satnogs.org/project/satnogs-radome-v1/hardware/ here].&nbsp;</p>
 
<p>A radome design is available from SatNOGS. This will protect the ground station from the elements in all but extra ordinary conditions. The design can be found [https://gitlab.com/librespacefoundation/satnogs/satnogs-radome/blob/master/satnogs-radome-v1-bom.ods here] and construction guide [https://ohai.satnogs.org/project/satnogs-radome-v1/hardware/ here].&nbsp;</p>
[[Category:Antennas]]
+
[[Category:Antenna]]
 +
[[Category:Hardware]]
 
__NOEDITSECTION__
 
__NOEDITSECTION__
 
[[Category:Omnidirectional Antennas]]
 
[[Category:Omnidirectional Antennas]]
 
[[Category:Directional Antennas]]
 
[[Category:Directional Antennas]]

Latest revision as of 05:33, 18 March 2020

The type of antenna largely depends on the type of ground station. A no rotator ground station will benefit from a different type of antenna (omnidirectional) than a rotator based ground station (directional). The two different approaches are explored below. In addition to the choice of antenna the choice of location for the ground station will have an effect on the quality of observations.

Non-Rotator Ground Station (Omnidirectional)

This type of ground station will require an antenna that will give a broad coverage from its fixed position. It is therefore not just the antenna that needs to be considered but also the proximity of buildings, geography or metallic structures that might be in the path of a line of sight between the ground station and satellite.

Typical ground stations have had success with simple wire antennas that can be commercially bought or made at home. Colinear or ‘white stick’ antennas are vertically polarised omnidirectional antennas. These have anecdotally been used for successful satellite work but should be avoided. The following are considered suitable choices:

It is highly recommended that you use a mast-mounted Low-Noise Amplifier (LNA) with these antennas.

Commercial Antennas

Homebrew Antennas

WiMo TA-1.gif

WiMo TA-1

VHF Turnstile

Estimated cost: 90€

Some SatNOGS stations using this antenna:

141 - balcony-only-east-passes

33 - G7KSE

129 - Chabot Space And Science Center

896 - KJ6DZB

VHF Turnstile.jpg

Turnstile

Estimated cost: TBD

Some SatNOGS stations using this antenna:

13 - OZ9AEC-VHF1

7 - Stony

16 - VK5QI-70CM

M2 Eggbeaters.png

M2 Eggbeater

VHF / UHF Eggbeater Antennas

Estimated cost: $304 (VHF), $280 (UHF), $573 (combo)

Some SatNOGS stations using this antenna:

50 - N5CNB-UHF

77 - N5CNB-VHF

VHF EZ-Lindenblad.png

Lindenblad

Estimated cost: TBD

Some SatNOGS stations using this antenna:

12 - W2BFJ

98 - Grove-UHF-01

442 - DL1UNX-FFB VHF

Winkler Turnstile.jpg

Winkler Turnstile

VHF/UHF Turnstile Antennas

Estimated cost: 40€ (VHF), 30€ (UHF)

Some SatNOGS stations using this antenna:

47 - DB0RV

UHF Paralindy.jpg

UHF Parasitic Lindenblad

Estimated cost: $15 (with access to a 3D printer)

Some SatNOGS stations using this antenna:

300 - KB9JHU-Experimental

32 - SV1QZZ - UHF #2

187 - K3LRD UHF Lindenblad

Quadrifilar Antennas.png

Quadrifilar Helix Antenna (QFH)

Estimated cost: TBD

Some SatNOGS stations using this antenna:

272 - K3LRD VHF QFH

255 - EA5BZ - Elche

183 - SPUTNIX-R2ANF-VHF/UHF-stationary

890 - Valpo WIRED Lab 3

Vhf moxon turnstile.png

"Turnstiled" Moxon

Estimated cost: TBD

Some SatNOGS stations using this antenna:

305 - VK5KJP-VHF

331 - VK5KJP-UHF

Rotator Ground Station

A rotator based ground station is able to make use of directional antennas. These will have a directional gain, meaning that you will need to point them in the direction of the satellite but the signal you receive will be stronger and for longer. They will allow much lower to the horizon passes to be received and more successful observations. These are not complex antennas but the choice will depend on the type of satellite and there are variations on the main types: yagi, helical and quad.

Commercial Antennas

Homebrew Antennas

M2 Leopack.png

M2 Circularly Polarized Yagis

VHF/UHF Cross-element Yagi

Estimated cost: $296 (UHF), $296 (VHF), $638 (Combo kit)

Some SatNOGS stations using this antenna:

2 - KB9JHU

109 - EA6WQ - Tomas Orzaez

25 - N7IPY

834 - Valpo WIRED Lab 1 - (2MCP14 and 436CP30 ~3.3m booms)

Cross element UHF yagi.jpg

Yagi Antennas, Cross-element yagi antennas

VHF/UHF directional antenna

Estimated cost: TBD

A common type of antenna that is either horizontally or vertically polarised. Simple to construct and suitable for a large number of satellites.

Some SatNOGS stations using this antenna:

TBD

Wimo xquad vhf.jpg

WiMo X Quad

VHF/UHF Cross-element Quad

Estimated cost: 149€ (VHF), 149€ (UHF)

Some SatNOGS stations using this antenna:

6 - Apomahon

49 - OZ7SAT

232 - VK5QI-AZ/EL

Satnogs helical v1.jpg

Helical Antennas

UHF circularly polarized directional antenna

Estimated cost: TBD

A less common type that are circularly polarized. The antenna looks a bit like a corkscrew and can be either LHCP (Left hand circular polarisation) or RHCP (right hand circular polarisation).

Some SatNOGS stations using this antenna:

6 - Apomahon

Arrow Portable Yagi.jpg

Arrow Dual-band portable yagi

VHF/UHF portable yagi

Estimated cost: $83-$149

Some SatNOGS stations using this antenna:

TBD

Elk Log Periodic.jpg

Elk Log Periodic

VHF/UHF portable yagi

Estimated cost: $130-$163

Some SatNOGS stations using this antenna:

TBD

A radome design is available from SatNOGS. This will protect the ground station from the elements in all but extra ordinary conditions. The design can be found here and construction guide here