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Showing posts with label satellites. Show all posts
Showing posts with label satellites. Show all posts

Sunday, December 2, 2018

Launch Day! Godspeed Exseed! 1:31 pm Eastern time. Video links here.



Farhan posted this message and the above video to Facebook today (I have the video cued up to around the 5 minute point): 

We are all set for the launch of ExseedSat... There are two tiny switches at the bottom of the satellite that keep the satellite switched off while it stays in it's container. Once the satellite is ejected, the switches are released and the satellite wakes up. 
There are 36 satellites on this launch, some belong to close friends in the satellite fraternity. We wait for all the satellites to drift out and after 45 minutes, the antennas are depolyed and we will start beeping signals home.
Here is a test of that process. You can skip to the fifth minute to watch the antenna depoly .


I really like the tape measure antenna.  This recalls the earliest OSCAR satellites.  And let's not forget that OSCAR 1 also launched from Vandenberg.  So there a lot of good tradition flying with Farhan's bird. 

Press reports indicate a launch time of 1:31 pm Eastern time today.   I think you can watch it live through the video window below.  Or try this link: 

https://www.youtube.com/watch?v=Wq8kS6UoOrQ 

Friday, November 30, 2018

Totally Absurd -- Farhan Being Questioned in a Police Station


I walked into the shack this morning hoping to read good news about the InSight landing and the impending launch of Farhan's satellite, but instead I found this message from Farhan in a police station.   This is really absurd and disheartening.   Someone (not Farhan!) altered the Indian flag and put it into an image of Farhan's CubeSat.  So with 24 hours to go before the launch, our friend Farhan finds himself in a police station. 

Stay strong Farhan!  You have a lot of support around the world.  

Saturday, November 24, 2018

Friday, November 23, 2018

The Max Valier Satellite Flies Over, Sending CW



I understand the launch of Farhan's CubeSat has been delayed a few days.  That's the way it works in the rocket launch biz --patience is required.  In the meantime, I've been practicing with my receive system.  Today at 1000 local the Max Valier satellite flew to my west.  It rose 78 degrees above my horizon to the W NW.  I left my three element quad pointed in that direction and waited for the satellite (which had been launched from India) to fly through its pattern.  

The CW beacon was quite strong, very visible and audible through my RTL-SDR dongle and HD-SDR software.  You can see it and hear it in the video above.  There is something quite charming about this very personal Morse message coming down from orbit and then passing through all that digital technology.   

More info on the satellite: 



"Max Valier Sat" is an amateur satellite built in cooperation by:
  • "Max Valier" High School in Bolzano/Bozen (Italy)
  • OHB System AG from Bremen (Germany)
  • Max Planck Institute for Extraterrestrial Physics from Garching (Germany)
Its main payload is an X-Ray telescope devised and made by MPE. Data generated by this detector will be transmitted, together with housekeeping data, over an amateur radio link with frequency 145.860 MHz.
A second payload is an amateur radio beacon transmitting a message in Continuous Wave. The beacon's frequency is 145.960 MHz
"Max Valier Satellite" was launched by the Indian Rocket PSLV-C38 on June 23, 2017 at 9:29 am IST (05:59 am CET) from Satish Dhawan Space Centre.
More tech details: 
Regarding the CW beacon: 


Beacon by Holger Eckardt DF2FQ:

  • Transmit frequency is 145,960 MHz (IARU and ITU coordinated).
  • Modulation is CW:
    • Duration of one dot is 114 ms.
    • Duration of one dash is 342 ms.
    • Interval between words is 1881 ms.
    • Interval between repetitions of the message is 6000 ms.
  • The beacon transmits Max Valier Sat's call sign and a greeting message.
  • Transmitting power is 500 mW.


And who was Max Valier?  Quite an interesting fellow: 
Max Valier in his Rocket Car in 1930

Saturday, November 17, 2018

From BITX to SpaceX: Falcon 9 To Launch Farhan's Cubesat on Monday (video)



  1. SpaceX will live-stream the launch as well on their YouTube stream. Also - this will be the first SpaceX booster to fly three times, and the first to launch from all three SpaceX pads.

    https://forum.nasaspaceflight.com/index.php?topic=46756.0
Special thanks to Dave Bamford for the BITX to SpaceX line! 

Friday, November 16, 2018

Launch Date Approaches for Farhan's Satellite


It looks like the launch date might have been moved up from 24 November to 19 November. 

Monday, November 12, 2018

Getting Ready for Farhan's Satellite (videos)



I've been getting ready for the November 24 launch of the CubeSat that Farhan and his friends in India built.  I started out with my trusty Drake 2-B and a Hamtronics 2-to-10 downconverter, but I quickly switched to an RTL-SDR dongle and HD-SDR software.   My 3 element quad antenna is visible in the first video.   So far, I am using the Armstrong method to turn the antenna. 

In that first video I keep saying that I am waiting for AO-71.   In fact is was AO-73, the "FunCube" from the UK.   I think it is similar in power and antenna configuration to Farhan's satellite, so I think we are almost ready for launch.

(Any ideas on what that mysterious pulsating sig in the satellite passband signal is in the first video?)     

Saturday, October 27, 2018

SolderSmoke Podcast #207 -- 15 mtrs, 60 mtrs, Giants of Radio, Cubesats, Pete's rigs, SDR MAILBAG


SolderSmoke Podcast #207 is available: 

http://soldersmoke.com/soldersmoke207.mp3

-- Giants of Radio
-- Pete on 15 Meters
-- Bill on 60 Meters with the uBITX
-- Pete's Sudden and Heath Filter Transceivers
-- Cubesats to orbit!  To the moon!  And to Mars! 
-- Bill rebuilds his 2 meter "Ray-Gun" Quad (for Farhan's Cubesat)
-- Homebrewing Variable caps and stockpiling NP0
-- My "by ear" Minimal Discernible Signal Technique
-- Thoughts on Direct Sampling SDR and the Radio Art
MAILBAG
-- A request for feedback from GQRP
-- G4WIF reports G3ROO on UK TV with spysets
-- VU3XVR builds FB rig from EMRFD
-- M0KOV Charter member of the 3 Scratch-built BITX club
--KD4PBJ's PTO Turtle DC Receiver
-- AB1OP builds Pete's LBS receiver and gives us a new acronym: SITB
-- KD4EBM -- Thanks for the scanner Bob!   
-- A possible sponsor from California... 

-- Pete's dream neighborhood...

Tuesday, October 9, 2018

Falcon 9 Launch, Landing and Sat Deployment Video



Very cool video from Space X.  I like how they have the time-line along the bottom and the telemetry in the upper right.  This is the first time they brought a first stage back to Vandenberg AFB.  I hope we get to watch the launch of the Indian Cube-Sat in November. 

Saturday, October 6, 2018

Radio Astronomy Knack!



This video has so much of the kind of stuff that interests us:  roadkill antennas.  3D printers.  Arduinos.  Raspberry Pi, And of course, RADIO ASTRONOMY.   

And the Thought Emporium guys have a lot of other great project videos on their YouTube site:

https://www.youtube.com/channel/UCV5vCi3jPJdURZwAOO_FNfQ

I feel myself being pulled back into SPACE.  First there was Farhan's new satellite, now this.  Last weekend I finished a 3 element quad for 146 MHz.   In a fit of nostalgia I used the same copper tube elements that I used to communicate with the MIR space station from the Dominican Republic in 1995. They have good JuJu.  And Mojo.   TRGHS.  More on this later. Tune UP!  

Sunday, September 23, 2018

Farhan's Satellite



Latest news:

The launch is set for November 24, 2018 from California.  It will be in a polar orbit.  The beacon will be on 145.90 MHz.   Farhan says an RTL-SDR Dongle should do the trick.  I plan on building several receive systems and an appropriate antenna. 

https://telanganatoday.com/a-blessing-for-the-small-guys

https://www.thehindu.com/news/national/other-states/odisha-man-team-builds-private-satellite/article24963338.ece

https://www.timesnownews.com/technology-science/article/instagram-now-lets-you-shop-directly-from-stories-explore-tab-heres-how/286276

I don't think Farhan's group is connected to this group, but this short video does a nice job of explaining the potential of CubeSats.








FROM Prasad VU3YFD:
Hi my friend's information to all about a man's " A DREAM COME'S TRUE " in " VU " LAND with his hard work & to the whole team.. we can say ......FANTASTIC ..... no other words to express from my side but i ENVY on their hard work's.. hi hi .de vu3yfd,prasad
AMSAT-UK
IARU Amateur Satellite Frequency Coordination
List of Sats formally submitted
ExseedSat Updated: 10 Aug 2018 Responsible
Operator Ashar Farhan VU2ESE
Supporting Organisation Exseed Space Innovations Pvt Ltd
Contact Person afarhan@gmail.com.nospam
Headline Details: The ExseedSat is a 1U cubesat that will provide a multifunction UHF/VHF NBFM amateur communication satellite. It will have various configurable modes, including: • UHF to VHF, single channel, narrow band FM transponder with CTCSS, 67 Hz squelch • Power output selectable between 1 watt and 0.5 watt • Digipeat feature with APRS on UHF uplink nd VHF downlink • Melody mode : It will play a simple melody of a few notes on special occasions or events. This will interest students outreach. • We expect this satellite to have a life of two years, depending upon how long the battery lasts and when the satellite de-orbits naturally. Planning a SpaceX launch from Vandenberg in October 2018 **The request has now been updated to include only a U/V transponder/digipeater** **The following frequencies have been coordinated: 145.900 MHz for repeater and digipeater downlink and for telemetry and 435.340 MHz for repeater and digipeater uplink**
Application Date: 19 Jul 2018 Freq coordination completed on 10 Aug 2018
Read The Hindu story at https://www.thehindu.com/…/odisha-man-t…/article24963338.ece
Gurudatta Panda VU3GDP http://gurudattabam.blogspot.com/
Ashhar Farhan VU2ESE http://hfsignals.blogspot.com/
Tnx cu agn de vu3yfd,prasad

Thursday, November 30, 2017

VK3YE QRP by the Bay Goes VHF/UHF



Peter Parker again hosted the VK3 radio amateurs.  This time the event fell on VHF/UHF Field Day weekend.   So Peter and his friends went up in frequency and up into SPACE!  

VK3HN has a nice blog post here:

https://vk3hn.wordpress.com/2017/11/25/qrp-by-the-bay-chelsea-beach-melbourne-25-11-2017/

Be sure to read about Peter's ankle manacles -- he apparently uses them to get a good ground (sea) plane while running pedestrian mobile on the sea shore. Peter is DEDICATED! 

Wednesday, November 8, 2017

Beautiful QSL by Jeff Murray K1NSS


Here's a reminder of the amazing art work of Jeff Murray K1NSS. 
You can have him draw a QSL for you:   Go here:
https://www.jeffk1nss.com/hamgraphics/

Jeff writes: 
Well, I got as far as high school intermediate algebra and then I saw a squirrel.
Thank goodness others like Ken N2WWD were paying attention and went on to surf gravity's rainbow of flight dynamics, all in a day's work and play for rocket scientists. Tandem surfing and professional activities somewhat aside, Ken is also actively involved with ARISS, i.e. Amateur Radio on the International Space Station, the group guiding ham radio operations aboard ISS. So Kelvin cool to work with Ken on this New One, with Ken cooking up a special Easter Egg for all you galactic hitchhikers!

What might I draw with you?https://www.jeffk1nss.com/hamgraphics/

Sunday, October 29, 2017

Ron Gang, 4X1MK on "QSO Today" Podcast: Knack Story, Satellites, Quads, Philosophy


Wow, Eric Guth's interview with Ron Gang 4X1MK really resonated with me: 

-- Asked about how he got is start in radio, Ron went back further than many of us do in response to this question.  He cited his early experiments with "two tin cans and a string." Yes, of course!  I'd forgotten all about it, but in retrospect this might have been a very early indication of THE KNACK.  (I'll bet many of our readers were also active on the String and Can band.) 

-- Ron used a DX-100.  FB. 

-- Ron was active on the satellites.  In his voice you can hear the joy and the burst of enthusiasm that resulted from those early satellite contacts.  He also mentions the untimely demise of Oscar 13.  Bummer. 

-- Ron was the Israel correspondent for 73 Magazine.  I held a similar position in Dominican Republic.  My friend David Cowhig was at the same time correspondent from Okinawa, Japan.  We should have a reunion of "73 Magazine Hambassadors."

-- Ron mentions John Tait EI7BA.  John was a regular contact of mine when I was in the Azores.  He appears in the SolderSmoke book.  He was the one who introduced me to an important Irish accolade:  John told me that WD-40 is "the Pope's pee." 

-- Toward the end, Ron discusses the wonder of ham radio conversations, and provides a good suggestion on how to get beyond the all-to-common "hello-59-goodbye" contacts. 

Ron's comments on the spiritual or philosophical aspects of the hobby were just the thing for a quiet Sunday morning. 

Thanks to Eric and to Ron for a great interview.   
    
Listen here: 

http://www.qsotoday.com/podcasts/4X1MK

Sunday, August 13, 2017

Audio Clips from N2CQR/HI8 Contacts with MIR Space Station (now in mp3)


Back in 1995 I was in the Dominican Republic.  I used an old 2 meter rig and a homebrew 5 element quad (see below) to talk to U.S. Astronaut Norm Thagard on the MIR space station.  (You may have heard me bragging about this before.) I made a bunch of audio clips from the contacts.  They'd been in the now defunct RealAudio format, but I have been able to convert them to mp3.  You can listen here: 

http://www.gadgeteer.us/CLIPS.HTM




Saturday, July 16, 2016

Preserving Vanguard 1


Ira Flatow of "Science Friday" was recently talking about how best to preserve important bits of the history of mankind's exploration of space.  Our old friend Vanguard 1 was mentioned several times.  It is now the oldest satellite still in space.

You can listen to the Science Friday show here:

http://www.sciencefriday.com/segments/protecting-the-historic-human-record-in-space/

They also have a transcript of the show on the same page.

SolderSmoke fans will remember the Vanguard adventures of Mike Rainey AA1TJ:

http://soldersmoke.blogspot.com/search?q=Vanguard

This seems to be the month for Vanguard:  just a couple of weeks ago, on 40 meters I spoke to Dale Parfitt W4OP. Dale was one of the first people to pick up Mike Rainey's Vanguard replica signals (see link above).

AND...

The Vanguard reproduction project came up during Eric Guth 4Z1UG's "QSO Today" interview with Graham Firth G3MFJ of the G-QRP Club:

http://www.qsotoday.com/podcasts/g3mfj

(Graham has such a great voice.  He definitely SHOULD build a phone rig!)

VIVA VANGUARD!  
  
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