AMSAT SA

Registered as a non-profit company

Registration 2016/111111/08

 

Follow AMSAT SA on FaceBook https://www.facebook.com/AmsatSA00/

  Covid-19 South African Online Portal at "www.sacoronavirus.co.za"

 

AMSAT SA
P O Box 90438
Garsfontein 0042
South Africa
Tel:  012 991 4662

Email:
admin@amsatsa.org.za


Weekly satellite report 

30 August 2020

 

Amateur Radio Today is

Sundays 10:00 CAT
7082 kHz

Mondays 18:30 CAT
3230 kHz

 


Quick links

About AMSATSA

Application and Renewal form

 


SA AMSAT EZINE

To request a trial copy send your email address here with trial copy in the subject line


\

SARL/AMSAT SA VHF workshop 

Virtual on the BlueJeans plaform

Saturday 12 September 2020

10:00 - 13:00 SAST
(08:00 - 1100 UTC)

Highlights

Meteor scatter and amateur radio
Dick Coats  ZS6BUN

The SARL multi - mode beacon programme
Brian Jacobs ZS6YZ

New 2m and 70cm beam antennas for fixed and portable operation
Gary Immelman ZS6YI

The revised SARL Noise monitoring programme and VHF
Anton Janovsky ZR6 AIC

Registration fee

SARL/AMSAT SA Members R20

Credit card: Pay

Non members R50 Pay

Students enter free by entering their student number or school details on the registration form

Please complete the registration form. Download here


AMSAT SA Dual Band Yagi now available
 

FOR  EXPORT IF ORDERED IN BATCHES OF 6 UNITS

Following requests from many amateurs outside South Africa we can offer the yagi for export if ordered in a batch of 6, at R950 each (approx US $65), total for a batch of 6 R5700. (approx US $ 390). Available to countries in the European Union and the USA. The Yagi has a unique element called a ‘Open Sleeve’ which is a director very close to the driven element.  The driven element is sized for 2M.  When operating on 70cm the ‘Open Sleeve’ acts as part of the driven element on 70cm (Third harmonic of 2M). 

The original concept was developed in 1946 by Dr J T Bolljahn of the Stanford Research institute but was not introduced into amateur radio until the 1950s. The AMSAT SA version is based on a design by DK7ZB with modifications by WB5CXC.  More details and order form here. Order form for South Africa here



Es’hail-2 Linear Amateur Radio Transponder


The published uplink frequency is 2 400.050 to
2 400.300 MHz with the centre of the band being
2 400.175 MHz. Total bandwidth is thus 250 kHz and right-hand circular polarization will be used.

The downlink frequency is 10 489.550 to 10 489.800 MHz with the centre of the band being 10 489.675 MHz. Vertical polarization will be used.

The preferred modes of operation will be SSB and CW. 5 Watt uplink power to a 60 to 75 cm offset dish should be more than sufficient for the uplink. The transponder will also be fitted with a “LEILA” (LEIstungs Limit Anzeige) input power limiter to ensure fair play and that the AGC of the transponder is not triggered (hogged) by a single, high power transmission, thus reducing the sensitivity of the satellite. In short, running higher uplink power than necessary will be counterproductive,

A detailed paper was presented by Hannes Coetzee ZS6BZP at the 2018 AMSAT SA Space Symposium.  Plans are being made to have a live demonstration at the 2019 AMSAT SA Space Symposium on 16 March 2019. Down the ZS6BZP paper here.


 

VHF Workshop

Look who has booked

Andre Thomas
Arno du Preez ZS2ADP
Brian Jacobs ZS6YZ
Bruce Dunn
David Kirk ZS1KK
Dick Coates
Duncan Withers ZS5RTL
Francois Basson
Gary Immelman ZS6YI
Gert Botha
Herman Geldenhuys ZR1JVV
Lunga Nqini ZS2LN
Marinus Brand ZS6BM
Marius Redelinghuis
Neil Viljoen ZS6WHY
Nico van Rensburg ZS6QL
Peter Dormehl
Rassie Erasmus ZS1
Ray Webber ZSS6RSW
Ronald Verweerdt
Stephen Warries
Tarries Brink ZS6MNO
Werner Nel
Wim van der Merwe

 


AMSAT SA SPACE SYMPOSIUM 2020

Watch this space for links to presentations and audio recordings
soon

Link to conference page and papers


Order 6 dualband AMSAT SA Yagi for delivery to Australia, UK and USA

R6000  courier charges included

Orderform here. Pay by  credit card

  Pay

 


KLETSKOUS SPONSORS

 

RS, the component supplier in South Africa has become a component sponsor for the KLETSkous project.

RS Components is the market leader in the high service level distribution of electrical, electronic, mechanical & industrial products as well as tools.  Offering over 400 000 products across 2000 leading brands at www.rsonline.co.za, RS serves every sector of industry in the procurement of their products relating to maintenance, repair, operations, low volume production, research and development.


TRAX SPONSOR PCBs for KLETSkous More about  TRAX



Avnet a broad line supplier of semiconductors,  passives, magnetics, enclosures, optoelectronic, GPS / GSM, interconnect, electromechanical, embedded products and components