My First Perfect ISS SSTV Image!
Вставка
- Опубліковано 24 сер 2024
- This was a great day! How to get email notifications for upcoming ISS SSTV events:
sats.wikidot.co...
Subscribe for more vids!
www.youtube.co...
With 50 watts of power coming from the radio on the ISS, the signal,
transmitted on 145.800 MHz, can be received with a setup as simple as
a handheld amateur radio or scanner, and a rubber duck antenna.
Decoding the images can be as simple as holding the radio next to the
microphone of an iOS or Android device.
Ideally though, you would use a high gain or directional antenna, and
an audio cable connected directly between the radio and decoding
device, whether it’s a smart phone or a computer. Whatever software
you use, make sure it’s set to SSTV mode PD120, as that’s what the ISS
will be using, and if you don’t set that, you might not decode any
images at all (see hint below).
= Recommended decoding software =
For iOS use “CQ SSTV”
itunes.apple.c...
For Android use “Robot36”
play.google.co...
For Windows use “MMSSTV” (see AMSAT UK link below for setup)
hamsoft.ca/page...
For Mac OS X use “Multiscan 3B SSTV” (not verified)
www.qsl.net/kd6...
= Tracking the ISS =
Howto use heavens-above.com to track the ISS
spacecomms.wor....
== Other ISS tracking methods ==
== Websites: ==
ISS Fan Club
issfanclub.com/
ISSTracker (no predictions, just live tracking)
www.isstracker....
Android:
Heavens-Above
play.google.co...
ISS Dectector Satellite Tracker
play.google.co...
iOS:
Space Station (ISS) (not verified)
itunes.apple.c...
= What to expect during a pass =
SSTV mode PD120 will be used instead of PD180 which was used during
previous SSTV events this year. With PD180 it takes about 3 minutes to
send an image. With PD120 it takes about 2 minutes to send an image.
Since images transmitted with PD120 take less time to send than with
PD180, more images can be received during a single ISS pass.
An ISS pass that goes right overhead (90 degrees elevation), lasts
about 10 minutes. ISS SSTV transmit time and off time are usually
setup to provide the radio with a 50% duty cycle (only transmit half
the time so the radio doesn’t overheat). With image transmission
taking two minutes, off time will probably be two minutes as well.
Compared to previous SSTV events using PD180, this means it should be
relatively easy to receive at least two complete images in one pass,
with the possibility to receive up to three images if timing,
conditions, and setup are ideal.
When the ISS comes into view/has line of sight with you, this is known
as Acquisition of Signal, or AOS. The ideal situation for a high
elevation 10 minute pass would be if the first image started
transmitting exactly at your AOS, and you had a directional antenna so
you could receive the signal even while the ISS was very low in the
beginning and end of the pass.
In this case you would be able to receive three images like this:
minute, image TX/off
0-2, complete image 1
2-4, off
4-6, complete image 2
6-8, off
8-9, complete image 3
The more common situation will be that the first image transmission
will start either before or after AOS. In this case you will only have
the opportunity to receive two complete images, but this is still
twice the amount of images that were possible with PD180. The downside
is the image quality is not as high as with PD180.
Even though you’ll have the opportunity to receive two complete
images, don’t expect to. It may take practice and it will certainly
take the right setup and conditions, to get just one complete image.
With that said, here are some tips that may help you get more images
and/or better images.
= Hints =
== Check Twitter for #ISS #SSTV status and images ==
For several hours after the April and July 2015 SSTV events were
scheduled to start, only a “blank signal” was transmitted. There was
no audio so no images could be decoded. During these events Twitter
users all over the world posted what they heard using hashtags #ISS
#SSTV. As soon as people started hearing the SSTV audio, they reported
it on Twitter.
By searching for these hashtags you can stay up to date on the current
status of the transmissions, which sometimes go longer than scheduled.
Maybe more importantly, you can also see all the images people are
getting!
se...
More hints at spacecomms.wor...
ISS just casually broadcasting power point presentations lol
yup. happens all the time in the Ham radio world.
I speak Russian. I translate image for u.
80 years since the birth of the first cosmonaut of the planet Earth
-Yuri Gagarin
Thank you!
73, John Brier KG4AKV
i was gonna translate too lol
Haha Igor. Someone beat you to it! ;-)
first man in space...cool
so much better than "be sure to drink your ovaltine".
This is the cleanest image you could possibly get over air!
I’ve sat in parking lots late at night with my DXing equipment, and I’ve captured the attention of police several times. But when I tell them what I’m doing, they find it interesting and tell me to continue. Interesting video. Thanks for sharing, de KN8FEL.
Same. Only one time did they tell me to leave and luckily I was already packing up.
@@SpaceComms did they have the authority to? Were you on private property at all?
@@MarkPentler most parking lots for malls and such are private property. They hire off duty cops sometimes.
Oh! My the flat earthers would have a field day with this one.
Nice Job.
I've gotten only a handful of comments from them, but the first time I saw it, it was definitely surprising.
73, John Brier KG4AKV
jay walker the antenna is clearly cgi
Man, this is all super exciting! Keep it up and thank you!
+Pavel Stejskal Thanks buddy and thanks for watching!
2M SSTV is awesome and comes out great.
That’s amazing dude! I’m new to this field and found this inspired me heaps.
6 years later but very cool video! My son lives in Cary!
Nice!
Doesn't get any better than that, wow
Grats on the perfect image! Love your channel dude!
Thank you!
73, John Brier KG4AKV
I totally know that feeling of staying up or waking up to catch a bird. You get some good passes coming, all lined up and it's like, well I only have to stay up till 5Am. Oh there's another one at 6:30... and one I can catch at 7:30. Next thing you know it's 8am, but nothing is showing up till 7pm, so that means it's sleep time. ^__^
2:42 - "Downloading some... some images from space y'all (hehe) oh my goodness! look at that.. look at that!! "
That's the excitement I had on receiving my first ISS SSTV transmission.
Even now I'll tell the kids about it and I'll jokingly say, 'I'm basically a astranaught now, I could probably work for NASA', and I think it gets them just as excited about space, radio and getting their own SSTV images. It's just a shame the ISS broadcast windows are so small. Luckily, I can simulate it for them using cheap PMR radios and app on their phones.
Thanks for transcribing my excitement. It's fun in a different way to read it :-)
73, John Brier KG4AKV
This was me today, punching the air in a local park when the tones kicked in
Your first SSTV is a special event and I congratulate you. I never worked the ISS. BUT, I did receive my first images on all vacuum tube home brew gear way back in 1972. Not a computer in sight. (Computers turn wonderful challenging things into no brainers, like putting a motor in your sail boat) My receiver was a Heathkit 7 tube model with a BFO. It took actual skill to tune it perfectly to get sideband on 20 meters. 14.230MHz, classic MacDonald analog 120 line 8 second FM video on P7. If you are going to cheat and go digital, just send email. My best image was a live view of the Saint Luis arch 2000 miles away from Red Bluff, California where I lived as a kid.
Thanks for you interesting comment. You have definitely experienced both sides of technology :-) I hope you have fun this weekend! ISS SSTV will be on for #NASAOnTheAir.
Space Coms! Pretty cool! Never played that high before! Gotta actually use my lisc! great job and so cool! 73s from the romeo radio from ct!
Great video. I am just getting into SSTV. I hope I have good luck with it. Thanks again for the video.
Well done!
That was great man. I’m a new HAM and just decided to have a look in to doing this. The ISS just flew past VK5 but unfortunately too far away as I couldn’t hear anything. I also don’t have a handheld Yagi. You’ve given me motivation man. Hoping to score a good image of my own at some stage.
It isn't on all the time. Next time will be October 27th.
See ariss-sstv.blogspot.com/2018/10/nasa-on-air-scan-sstv-event-oct-27.html?m=1 and
sats.wikidot.com/how-do-you-know-when-the-iss-is-transmitting-sstv
man that's amazing video, i was super excited for you, thanks for sharing the adventure:)
Glad you enjoyed it!
I can't wait until I get a radio like yours.
I hope your ready for the event starting tomorrow! East coast should get a very nice pass on the 3rd (local).
Yeah I'll be grabbing a few images so I can get the award for sure.
Excellent image! Well worth getting up! Hope to catch some good pictures this Boxing Day! Good luck! 73 de M0AEU
Just found this searching for info on HAM radio. That's really cool
Congratulations and well done. Excellent signal received there.
Thanks!
73, John Brier KG4AKV
Brilliant Contact, Well done Buddy
real good decode came thru nicely thanks
Peter Boland Thanks for watching!
73, John Brier KG4AKV
Good video, good work. Hello from Russia!
Thanks!
73, John Brier KG4AKV
Wow, I had no idea of this capability. I have been watching the ISS for over a decade and currently trying to get some good images during a flyover or possibly lunar or solar transit like some friends have.
Could you provide a link that goes into the technical details of capturing this information?
Great work by the way!
Flat'ards will eventually go extinct. It is a wonder they know how to breathe.
Yup, it's pretty awesome when you pull it down yourself. The first thing you should know is, ISS SSTV is not on all the time. These are special events for a few days at a time, a few times a year. You can actually receive them with just an internet connection using a "WebSDR," which is special radio connected to the internet. There is a good one in Farnham, UK that has antennas ideal for space comms:
farnham-sdr.com/
You would have to connect the sound web browser into some SSTV decoding software using a virtual audio cable:
spacecomms.wordpress.com/decoding-iss-sstv-audio-recordings-with-a-virtual-audio-cable/
But you will need to learn how the ISS SSTV works in general first:
spacecomms.wordpress.com/iss-sstv-reception-hints/
amsat-uk.org/beginners/iss-sstv/
To find out when the ISS SSTV will be happening follow the sources listed here:
spacecomms.wordpress.com/when-is-the-iss-doing-sstv-next/
I also recently made a zip file of actual ISS SSTV audio I received so you can play around with decoding the real thing yourself:
spacecomms.wordpress.com/iss-sstv-audio-recordings/
There are a lot of other ISS ham radio activities. They talk to schools regularly and I have many videos of me receiving them on this channel. They even have a "Ham TV" video transmitter so the schools can see the astronauts. There is also a "digipeater" that is on most of the time you can hear to test your ability to receive ISS ham radio signals.
73, John Brier KG4AKV
Space Comms awesome. Thanks. As long as I have been following and watching the ISS grow. I didn’t realize this was a thing. Will look into it when I have some spare time.
So probably never. Lol.
Thanks for the info!
Road Pirate with a radio. HOLY CRAP!
WOW! I just found this. Awesome picture. Thanks 4 sharing. N6WIP
Thanks for the effort!
Very good SSTV {martin1-martin2} signal♥️
I've got the priviledge to TALK and make a full exchange with Valery Korzun abord the ISS just at LOS almost 20 year ago ! I remember being that excited also when he did return the mic to me !!! RS0ISS !
That is a great story! I haven't talked to Russians, but I did do an ARISS contact with a school and we used my callsign, to talk to Scott Tingle. I also had a random unscheduled contact with Serena Auñón-Chancellor.
73, John Brier KG4AKV
@@SpaceComms that is also a nice achievement you've done there ! Back then I also wanted to make a ARISS contact with a local school but it never could be done due to complicated install setup and timings. Oh, I did contact MIR space station too with paper QSL card to confirm !
here is my contact made in 2002 with ISS : ua-cam.com/video/HXSczIN_3g4/v-deo.html
73 de Claude VA2CST
It says 80th anniversary from the birth of the cosmonaut Yuri Gagarin
Спасибо, товарищ!
Awesome vide. I'm in Knightdale, if you do this kind of stuff normally let me know, would love to geek out with cool shit like this! I'm just getting into RTL-SDR stuff myself, hoping to do power meter logging, NOAA and Russian weather satellite decoding, and just see how the hobby goes from there. Subscribed!
jonboy545 I'll be doing some satellite demos at RARSfest on March 31st. Check www.rarsfest.org the satellite info should be added under events within the next few days.
Very cool bro
Thanks!
73, John Brier KG4AKV
great video, I'd love to do this! Congrats - 73
This is very much cool
That is absolutely awesome. Fantastic download 😊
Thank you for Posting 👍
Nick G0HFL
Great Video!!! 73s from WB2TXL
Way cool, kinda like baseball cards from space. Well done.
Awesome, been trying for the past 2 months to get any type of signal from the ISS... no Luck
145.825 digipeater is on most of the time. Short data bursts. If you live in Europe or NA it will be bursting pretty frequently as people are using it.
Space Comms thanks for Info, located in SA TX. I can't find an official schedule for SSTV transmission either
spondoux93 spondoux93 The digipeater has actually been off for a while. It's strong, you don't need an Arrow to hear it but if you want to do portable sat ops more seriously (two way instead of just RX) you will want an arrow or something like it. Check issfanclub.com to see when the digipeater is back on. Ariss.net too.
amazing
I feel like this would be a good intro to a movie. Maybe call it signal. Maybe put Jodie Foster in it idk thanks
I like it! BTW, Contact is one of my favorite movies!
73, John Brier KG4AKV
I know how you feel ,i was excited about receiving from ISS
My first contacts via ISS using PKT,VOICE ,SSTV was from 2002
When i was watching your video i was smiling and hoping you would get a complete perfect image and you did.
This is what ham radio is all about.
What was your radio and the connection to the computer for mobile etc?
What is your call sign ?
73s
Graeme mm5iss
Incredible good work !!!!! Wow !!
caron reform thanks!
Excellent image! `73 de YO2MMJ
+Paul Cristea Thank you!
73, John KG4AKV
Hello! is it possible to modify a regular radio reciever that only can get frequencies up to 108mhz to be able to pickup the ranges at 137mhz or higher?
Possibly. But I have no idea how. It would be easier to buy an old scanner like this:
www.ebay.com/itm/Uniden-BC75XLT-300-Channel-Handheld-Scanner-/223353722168
Or if you plan to get a ham license at some point get an old ham radio. Or new!
sweet!
inspiring.
Thank you!
73, John Brier KG4AKV
well done I am building something cool for this hope to post soon 73s kd5zkv Dallas
Thanks for your comment and good luck!
73 John KG4AKV
Good job, Sp9cf
Thanks!
73, John Brier KG4AKV
🔥🔥🔥
I just found your channel, great stuff.
Thanks!
Wow.. Great job!
Quick question, is that an arrow antenna, or homemade or what? If homemade, dude.. mad props. clean as heck. Wont give out my callsign here, but General ticket, in 6 land.. Very nicely done, sir!
+Archibald “Von” Perriwinkle Thank you! I wish it was homemade! It's the Arrow II Satellite antenna.
Hey John!
I love SSTV videos, keep doing them! I have to try it myself, I've just put up a video of me testing the audio recording and such... Can you tell me how I'm doing? I've got a system up to record me as I'm doing it too. 73, (You're awesome!)
Good video I've got a app on my phone which shows you when the space is coming over . I've been out in the garden many times with beam mac and radio and herd nothing . Wish there was a way to tell when they are transmitting so I don't have to set all the gear up for nothing 73's 2e0iqj
2j4ez Unfortunately there is no regular schedule but there are several sources that post when it’s activated. The SSTV events are done by the Russians and they don’t announce them far in advance, sometimes only a few days, a week, maybe two weeks out if we’re lucky. There is also the issue with scheduling lower priority stuff like ham radio, it can get cancelled for higher priority stuff like science.
With that said these are the resources you can follow to be notified of an event.
ariss-sstv.blogspot.com/
amsat-uk.org/
twitter.com/RF2Space
www.amsat.org/mailman/listinfo/amsat-bb
www.ariss.org/
Yessss!!! Awesome!!
Thanks!
73, John Brier KG4AKV
We have a upcoming 87 degree pass
I got a Nice image
Not perfect but nice
Great video mate, well done.
If you weren’t friggen talking, I’d of gotten it too, and I was using robot 36 for android on an old deserviced android. But yes it is a portrait of a guy though. You’re lucky to even get that good of a picture as far away as the iss is. There had to of been some ductwork going on because otherwise I doubt you would get a picture that close and free of video noise.
Calm down. You can download the audio recording at the link below and decode it to your heart's content. And, no there was no ducting required to do this. You can receive satellites like this all day long without ducting and I've done it dozens and dozens, maybe hundreds, of times, in many types of weather. The ISS is actually the lowest elevation of all the satellites I use.
spacecomms.wordpress.com/iss-sstv-audio-recordings/
73,
John Brier KG4AKV
Awesome Brother, Thanks! KN6EHB
is it possible to add more antennas to get a better signal? I thought i could have put it at the top of a van and roam around for a signal.
TechDark Yes you can phase multiple antenna together. Look up Earth Moon Earth (EME) where hams bounce signals off the moon to communicate. Since it's so far away hams hook many antennas together in phase to get more gain (amplification). The drawback is the higher gain the narrower the beamwidth so it gets harder and harder to aim without being off target. For ISS though the signal is so strong you don't need multiple antennas in phase. Start out simple. Just get a handheld radio like a Baefong for $30 USD and listen to the ISS digipeater on 145.825 MHz. Big plans aren't necessary.
Hello there John! I will be trying to get an SSTV image reception today. I heard about it on the ARISS website. Will you be receiving it today?
I will try today or tommorow. There is a visible pass this evening which is fun because you can see where the signal is coming from.
I just received one!! It got cut off because I just got home from a basketball tournament and I just looked at the passes. The ISS was just passing over at that minute! I got the arrow antenna and the radio out and received half of it, but the pass was almost over and the signal was dropping. Going to try another one tonight. It's an 84 degree pass! Hopefully I can get a really good one. Going to try to record and decode it at the same time with my computer. :)
@@keesvanoosbree5911 congrats! If you mean the 2344 UTC pass it will be visible at least here in NC. Check to see if it will be visible for you.
Yes! The pass starts up here in Minnesota and ends in NC, so we can both here it(hopefully) at the same time! It is almost directly above my house. Thanks for the congrats! You really taught me a lot about SSTV and the ISS passes! 73, Kees, de KE0STO
@@keesvanoosbree5911 great! You're welcome. I'm glad to share the fun!
Does the ISS still send out regular SSTV signals? I think would it would make an interesting little project making a small setup to record these and translate them to images.
DeceptiveReptile Since I started following the ISS ham radio activities a few years ago the SSTV events have never had a regular schedule. There is one hopefully happening the weekend of July 15th though, so get your setup going!
amsat-uk.org/2017/06/21/ariss-sstv-commemorative-activity/
73, John Brier KG4AKV
Space Comms alright, thanks. I'll start looking into it.
can you show how the radio equipment is connected to the computer and the cable?
For this setup I wired a 3.5mm phono cable to the speaker inside the radio. Not sure I would do it that way again but that is what I did. The laptop was an old one that actually had a separate microphone/line in port. Most laptops these days do not have a separate audio input. They do have TRRS which combines audio in and out, I believe. If your laptop doesn't have an audio in you could get a USB audio interface like a Zoom H1. Or you could get a voice/audio recorder and copy the audio file to the computer at home. You may need an attenuator cable though so it doesn't overload the recorder and cause distortion. You can build one or buy one. spacecomms.wordpress.com/audio-cable-for-kenwood-th-d72/
This is actually really cool stuff , but i don't understand, why the ISS keeps emitting those image in SSTV ? what is the purpose ? thanks for the vid
Nucleopolymere Thanks! No real function except for amateur educational scientific experimentation. Amateur radio's two main purposes are to provide emergency communication in the event of disasters and to promote technological progress and/or interest in radio technology. Many people that get into the hobby ultimately study radio or electronics in school and/or work with it professionally. There a million things you can do with ham radio, this is just one.
1:46 SONIC THE HEDGEHOG
WOW, nice nice.
Real cool, gotta give this a try, impressive except that space is only like ... 100KM away.
You might have an opportunity Monday and Tuesday depending on where you live. They are activating it for a short period on each day. Mostly the passes will cover Europe and South America but it's possible some will cover the US east coast too:
amsat-uk.org/2016/08/10/iss-sstv-august/
73, John Brier KG4AKV
Technically space may be referred to as the atmosphere of Earth. They atmosphere may also stretch as far as the moon. It is all but more or less filled or less filled with matter. But anyways it doesn't matter.
Iss app will help you track it :-)
I accidentally left my SSTV Viewer open while watching and IDK what garbled mess of monochrome it created was XD
haha. You can definitely decode stuff from this if you want. Some of my other videos might have the SSTV audio even more clearly.
73, John Brier KG4AKV
Space Comms
the equipment was not hooked up and my speakers are garbage so a garbled mess will come out IN fact the equipment is still in the basement and I don't have an antenna so I can only get local signals I actually got a Garfield comic from it once XD
Gotcha. Enjoy SSTV!
73, John Brier KG4AKV
Did Officer Josh ever pick up the Hobby do you know?
I don't think so but I haven't seen him in a long time. Did you see how I ran into him a second time? spacecomms.wordpress.com/2017/07/21/this-is-pretty-cool/
@@SpaceComms I had not thanks for the link
What kind of antenma do you use and how did you connect it with the radio?
It's the Arrow II Satellite antenna:
arrowantennas.com/sub/arrowiiyagi.html
It has BNC connectors on the feed points (two feed points because there are crossed VHF and UHF elements for dual band usage on cross band repeater satellites). I probably used a BNC to SO-239 adapter on the feed point and a coax cable with PL-259s on both ends to connect to the Kenwood TM-261A radio. I soldered an audio cable to the speaker inside the radio and plugged that into my laptop line/mic in. You can see this setup on another video of mine:
ua-cam.com/video/j3JwOwjYIkM/v-deo.html
73, John Brier KG4AKV
So why don’t the ISS send real time pics rather than what your receiving?
If you mean images of the earth, at the very least it's because that would require a camera hooked up 24/7 to the SSTV/ham radio equipment and that just wasn't the intention of the equipment. Everything that goes on the ISS has to be planned and approved. They already have realtime video they share on NASA TV and on Ustream. However, they have a VC-H1 Kenwood SSTV camera and Richard Garriott used it to take pics through the windows and then transmit them down just like this. Go here and select Display Mission: Richard Garriott 1 and you will see them: www.spaceflightsoftware.com/ARISS_SSTV/
is there specific software you used?
also would the internal radio reciever of a phone work?
MMSSTV. If you're talking about the broadcast FM receiver in some phones, no that won't work. This is 145.800 MHZ and the broadcast band is 87-108 MHz. They are both FM but broadcast FM is much wider in bandwidth. If you want you can listen using someone else's radio conneted to the internet called a WebSDR. If you want I listen on your own radio you could buy a handheld radio like the Baofeng UV-5R which is pretty inexpensive. Here is info on using a WebSDR. www.esa.int/Education/Get_pictures_from_the_ISS_and_learn_about_radio_communication
No matter how I bring in the audio to my computer, and whether I use MixW, MMSSTV, RX-SSTV, etc...my computer receive images come out terrible. But if I just set my cell phone down on top of my mobile rig and let it record the sound using the Robot36 app (which auto-detects PD120), and got the sharpest, clearest pic. Not perfect, but 10x sharper than I ever get on the computer.
Any idea what's up with that?
Nice job on that rx, man that's a clean image, S9+ the whole way. Very nice. :) I'm just using a dual band vertical atop a 38' mast. It does just okay.
Not sure off hand but how exactly are you bringing the audio in to the computer? Recording and decoding later by copying the audio file to the computer and virtual audio cable to program, or direct from radio into mic/line in on PC to do live decoding? You can email me the bad images. Sometimes that can tell you what is wrong. johnbrier@gmail.com
@@SpaceComms Thanks so much for the reply!! I emailed you back just now.
252/5000
Hi sorry for my English this is a google translation. I live in Spain.
Could you tell me all the characteristics of that antenna to buy an identical one?
I belong to an astronomy group, but this topic is not discussed.
Thank you.
Hola perdón por mi inglés esto es una traducción de google. Vivo en España.
¿Me podría decir todas las características de esa antena para poder comprar una idéntica?
Pertenezco a una agrupación de astronomía, pero en ella no se trata este tema.
Gracias
No problem with your english. This is the antenna:
arrowantennas.com/arrowii/146-437.html
Some people try to recreate it by building it themselves:
nt1k.com/antenna-reviews-arrow-satellite-ii-vs-elk-log-periodic/
But it's probably easier to use a different design:
w6nbc.com/articles/2011-12QSTtapemeasure.pdf (make sure not to use too wide of a tape measure for the 70cm elements or else it will have a high SWR (won't tune properly).
Here is an even simpler design:
www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf
It would be better to build it so the 2m/70cm elements are on 90 degree opposite planes, though.
73, John Brier KG4AKV
can you tell me what software you use?
MMSSTV for Windows but during the April 11th-14th event this year I used Robot 36 on Android and I feel I got better results. Others say RX-SSTV on Windows is better than MMSSTV. MMSSTV is no longer updated.
73, John KG4AKV
EDIT: Also see this "ISS SSTV Reception Hints" webpage I made with a list of SSTV decoding software for different platforms/devices/OSes:
spacecomms.wordpress.com/iss-sstv-reception-hints/
why have no Doppler frequency difference
Doppler shift at 146 MHz is only around 3 kHz and the radio is only capable of tuning at 5 kHz steps. Adjusting at that step can still help but the ISS has such a strong signal it often isn't necessary.
Did you make your antenna or is it commercially made?
Commercial. WA5VJB has designs for cheap LEO sat antennas if you want. Here is the Arrow antenna you see in my videos: arrowantennas.com/arrowii/146-437.html
Thanks for a very informative video. How did you know that the space station was going to be broadcast in SSTV? Is there a website of the space stations ham radio activity schedule?
You're welcome. I actually have written an FAQ on that very question. See below. It has info on how you can sign up for email notifications of events. There is an MAI-75 ISS SSTV event on June 6th and 7th but each day it is limited to only a few hours and it looks like it won't be on over the US. Usually these events are done during passes that target Russia, and North America isn't covered e xcept for a few low elevation passes at best. However, sometimes after the short MAI-75 events they have longer running world wide ISS SSTV events.
sats.wikidot.com/how-do-you-know-when-the-iss-is-transmitting-sstv
Good video! 73 de Brazil! PX2Q2328
I'm a bit confused. Is the ISS just broadcasting images 24/7? If so, what's the point of that?
No, the ISS is not transmitting images 24/7. These are special events that happen a few times a year and they usually only last a few days. If you're still curious what the point is and you're not familiar with ham radio, you might think of it like crocheting sweaters. We have machines and industries that produce us sweaters and other garments faster, cheaper, and of potentially higher qualities, but it's still fun to figure out how to do it yourself. That's kind of what ham radio is about. We have the internet and cell phones and they are generally more dependable and versatile than ham radio, but it's fun to be able to figure out how radio and communication works all by yourself. Ham radio also serves as a backup to traditional comms in times of emergency like natural disasters. Finally, it provides technical people a way to learn and experiment with radio and electronics which helps build a pool of people that may potentially go on to work in industries that make the technologies you know and love!
As we say in ham radio, I say 73 to you, which means best wishes! John Brier KG4AKV
What software was used in the video on bottom area of video??
MMSSTV and Orbitron.
73, John Brier KG4AKV
@@SpaceComms can you make a video on how to build a radio telescope like this
@@somi6323 I've never used or made a radio telescope so unfortunately I can't. Hope you can find the info you're looking for. Maybe there is an astronomy club near you that could help.
is it uhf ?
VHF. 145.800 MHz is the voice and SSTV downlink for the ISS.
your yagi elements look really short :) can you send me your yagi project
+Ayberk Halaç You're probably talking about the picture of the antenna with the police officer. those are UHF. I had already taken the VHF elements off the boom of that antenna when we took that picture. The antenna has both. It's this:
www.arrowantennas.com/arrowii/146-437.html
WOW
Is this a catch?
Rules.
Please answer me soon can i transmit an fm station with my fm transmitter with a directional antenna rca from walmart in my town
the opposition If you mean FM broadcast like 88-108 MHz, in the USA you are limited to very very low power by the FCC and I don't think you can use an external antenna. i.e. it must be attached to the transmitter. I believe this is under FCC part 15 rules.
If you mean ham radio you can use an external directional antenna.
Space Comms im not worried about the fcc ay all thats not a factor they cant tell me how to be free but just wondering and yea fm radio
What a signal.
KC3CDU
Brother Timothy Clark Our only 50 watt ham satellite baby!
2:02 Song please? Can't remember lol
The song of our ancestors, in particular, Copthorne Macdonald. ;-)
en.wikipedia.org/wiki/Slow-scan_television#Concept
nice & great job!. Jat 9w2ejt
+Jat s Thanks!
73, KG4AKV
gary gagarian:)
nice video but why the hell are you screaming all the time that the signal is nice?
Because I realized I was going to get a perfect decode for the first time ever. And I am passionate and maybe I was hamming it up for the camera a little bit. 😀
John, Well done. Pete vk4nbl
Dear jenny anyway
Kevin Burress What?
Space Comms just a song by Amanda Palmer "ashley talks to astronauts back home by means of fax transmission" :) I didn't know ISS had sstv broadcasts. Although Emily said "don't shine for swine." I suppose not to enlighten them of the argot. Illumanatus ask the howling spark.
Okay now the reference makes sense. I saw the Dresden Dolls around 2003 in my college town of Boone, NC. But now you reference a song by Metric and then talk about Argot and the The Illuminatus! Trilogy? What is the connection to this?
Space Comms well the chinese have an old saying for this. He who knows doesn't say and he who says doesn't know.
Anyway what I know is whois on illuminauts.com is owned by thehowlingspark and my department at work is sparkmeter. But nobody knows what the stuff we're building really does.
i.imgflip.com/1dyp3q.jpg
Now explain to the police how you're not international space communist.
I thought only Russia used RS0ISS! NA1SS is America's!
The Russians did this SSTV event. Right now American/European/Japanese can't do SSTV.
73, John KG4AKV
TonyTheCat1 well, the ISS core node is the Saliut 8
Когда у нас запретят аналоговое кабельное ТВ? Из-за него ничего извне не примешь. Все частоты забиты. Использовать только цифру должны. В Москве от 70 до 700 МГц всё забито аналоговым говно-тв от кабеля.
ill give my hand if that is not only ground radio message
You have not understand...your contact,the frequency that you use for contest...speak...
caron reform 145.800 MHz FM