Date   

AO-91/92 Update

Clint Bradford
 

From AMSAT - 

Today I turned AO-92's transmitter off after resetting the min-max readings. We've been watching the battery minimum voltage decline steadily over the last few days, and needed to give it a rest for a bit.

 

Immediately afterwards, there was an AO-91 pass. I turned on the transmitter, and a few moments later reset the min-max readings. The command team will monitor telemetry and determine if we can leave it on for a while.

 

Please remember to not transmit to either satellite while it is in eclipse. If you do not use software that indicates eclipse state, just avoid the evening passes. We are in the endgame for both satellites, and your cooperation will give us more operational time over the coming months.

 

Thanks and 73,

Drew Glasbrenner, KO4MA

AMSAT VP Operations


Re: Fox-1E Launch Window

Clint Bradford
 

10AM to 2PM Pacific Time.


Re: Fox-1E Launch Window

Clint Bradford
 

New launch window!


Launch Delay for EASAT-2 and Hades satellites

Clint Bradford
 
Edited

Hello everyone and Happy New Year,

Alba Orbital, the space broker that manages the launch of AMSAT-EA (AMSAT Spain) EASAT-2 and Hades satellites, has informed us of a delay in the scheduled one for January 14, 2021 with SpaceX.

This delay has nothing to do with our satellites, or with Alba Orbital itself. It is attributable to Momentus, which acts as an integrator with SpaceX.

The delay means the next try would probably go to March, coinciding with the Starlink mission and being located in an estimated orbit between 450 and 550 km with an inclination of 53 degrees.

As for the satellites themselves, this should not be a major setback. We do not expect a significant drain on the batteries.

We keep you all posted.

You have more information about our satellites on our website: https://www.amsat-ea.org/proyectos/ (in Spanish) and about Alba Orbital cluster 3 at the link: http://www.albaorbital.com/integration

Felix EA4GQS 


Tape measure style Yagi using PVC and Ladder line.

Mike Hoblinski
 

I ran across this hams Version of the Tape measure Yagi antenna using PVC 
pipe as the skeleton and Ladder line  for the elements. Its probably a bit heavier
than the tape measure Yagi but wont flop around when twisted. His version is
constructed for a pole mount but could be reworked as a hand held or tri-pod
mount. He uses a PVC C style clamp that the antenna the ability to rotate the
boom between horizontal and vertical.

Plans  https://kb9rlw.blogspot.com/2020/12/a-durable-2-meter-3-element-yagi.html
Video  https://www.youtube.com/watch?v=hh9beU335s4

Mike
N6IMF


Re: 3D printing as related to Ham radio.

Stefan Wagener
 


happy new year!

73, Stefan VE4SW

On Thu, Dec 31, 2020 at 3:06 PM Mike Hoblinski <hobergenix@...> wrote:
Here is one more website with a 3d Printed rotor and other parts that might be of some interest.
Antenna Rotor   https://remoteqth.com/3d-rotator.php
Misc. Items        https://remoteqth.com/3d-printing.php

The rotor is a single axis rotor that that uses a small DC motor. You would need two rotors
and a way to couple them together for AZ-EL or maybe a rework of the housing. Easier said than
done !  But maybe with a Raspberry Pi running Gpredict and some of the software available you
could put together a portable Battery powered setup. I think the old Kenwood TH-F6A hand held has RS232 Control
as well as the FT-817. A very ambitious project for the experimenter.

The Misc. Items has an item that caught my eye. The Vhf antenna insulator. A mount for small tubing, The 
mount can can be fastened to square tubing you can buy from places like Home Depot or Lowes to build
Yagi antennas. I think they show several versions of the mount. Maybe with some rework of the antenna
insulator it could be made to go on round aluminum stock for a poor mans Arrow Antenna.

Mike 
N6IMF


Re: 3D printing as related to Ham radio.

Mike Hoblinski
 

Here is one more website with a 3d Printed rotor and other parts that might be of some interest.
Antenna Rotor   https://remoteqth.com/3d-rotator.php
Misc. Items        https://remoteqth.com/3d-printing.php

The rotor is a single axis rotor that that uses a small DC motor. You would need two rotors
and a way to couple them together for AZ-EL or maybe a rework of the housing. Easier said than
done !  But maybe with a Raspberry Pi running Gpredict and some of the software available you
could put together a portable Battery powered setup. I think the old Kenwood TH-F6A hand held has RS232 Control
as well as the FT-817. A very ambitious project for the experimenter.

The Misc. Items has an item that caught my eye. The Vhf antenna insulator. A mount for small tubing, The 
mount can can be fastened to square tubing you can buy from places like Home Depot or Lowes to build
Yagi antennas. I think they show several versions of the mount. Maybe with some rework of the antenna
insulator it could be made to go on round aluminum stock for a poor mans Arrow Antenna.

Mike 
N6IMF


Re: 3D printing as related to Ham radio.

Faisal Akber (VA3SFA)
 

Hi  Mike,

Thanks for these great links.  I really like the rotor links that you've posted.

There's an Amateur Radio group on Thingiverse and if you look for the tag amateur_radio, you'll find dozens of other designs.
https://www.thingiverse.com/tag:amateur_radio

73,
Faisal VA3SFA


Re: ISS SSTV Project Still Rnning!

Nitin Ainapure
 


Re: ISS SSTV Project Still Running!

M0PWX
 

i got these today over UK

Peter

2E0PWX

loc JO01ij





This email has been scanned by iomartcloud.
http://www.iomartcloud.com


Re: 2021 Fast Approaching!

AF7ZA
 

Thanks for the reminder Clint. I believe it’s good to be reminded and thanks also for the links.

73 & Happy new year.
Bill AF7ZA

On Dec 30, 2020, at 7:52 21AM, Clint Bradford via groups.io <clintbradford@...> wrote:

AMSAT, ARISS, and the ARRL make a difference.

Education is the key to our future. These three organizations focus on educating their audiences, maintaining excellence year-round for the benefit of amateur radio world-wide.


- AMSAT - The Radio Amateur Satellite Corporation
https://www.amsat.org/donate/

- ARISS - Amateur Radio on the International Space Station

https://www.amsat.org/donations/ariss-donations/

- ARRL - American Radio Relay League

Diamond Club, and other ways to give - http://www.arrl.org/the-arrl-diamond-club

Clint K6LCS





Re: ISS SSTV Project Still Running!

Floyd
 

Just decoded this on the 10:51 local pass.  One image from a complete set.

‘73
K4BWI 
Floyd



On Dec 30, 2020, at 10:32 AM, Steve R via groups.io <oldjavadrinker@...> wrote:

Pulled this one off this am on the 9:00 am pass over FN02.  I lot of local interference this am and not so great WX condx.
Using X50 and FT817ND.

Steve
VA3FLF

<ISS 12302020.JPG>


2021 Fast Approaching!

Clint Bradford
 

AMSAT, ARISS, and the ARRL make a difference.

Education is the key to our future. These three organizations focus on educating their audiences, maintaining excellence year-round for the benefit of amateur radio world-wide.


- AMSAT - The Radio Amateur Satellite Corporation
https://www.amsat.org/donate/

- ARISS - Amateur Radio on the International Space Station

https://www.amsat.org/donations/ariss-donations/

- ARRL - American Radio Relay League

Diamond Club, and other ways to give - http://www.arrl.org/the-arrl-diamond-club

Clint K6LCS




Re: ISS SSTV Project Still Running!

Steve R
 

Pulled this one off this am on the 9:00 am pass over FN02.  I lot of local interference this am and not so great WX condx.
Using X50 and FT817ND.

Steve
VA3FLF


Re: ISS SSTV Project Still Running!

Clint Bradford
 

A pleasant break/diversion for us, indeed!


Re: ISS SSTV Project Still Running!

Brad Ko6kL
 

many good iss passes for sstv over the holiday, thanks for the heads up on that.


Re: ISS SSTV Project Still Running!

Clint Bradford
 

ARISS SSTV event update:
From an earlier report, the off-time interval between images   is now around 4 minutes. I experienced this myself during today's 15:46 UTC pass over Orlando. 

Dave, AA4KN
ARISS PR


ISS SSTV Project Still Running!

Clint Bradford
 

It really can be as simple as holding your smartphone close to your HT ...

https://www.work-sat.com/sstv.html


AO-91, ‘92 Update

Clint Bradford
 

Update ...


Don’t Forget ISS QSL Card!

Clint Bradford
 

Diplomas a’plenty are available for ISS SSTV reception this current project ... But don’t forget to receive (pun intended) your QSL card from the ISS!

Details here - https://www.work-sat.com/sstv.html

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