ADALM PLUTO Full Duplex Transceiver For QO-100

4 роки тому

Here we take a look at my home built QO100 transceiver based around the Adalm-Pluto as the main TX/RX.
Parts list here: www.m0dqw.com/2020/05/11/188/
Also used in this kit is an Analog Devices CN0417 Pre-Amp and an Amsat 5 watt 2.4 Ghz amplifier.
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КОМЕНТАРІ: 65

@dandwrasan2342 4 роки тому

Absolutely beautiful work of art I never knew something so complicated could come from a Pluto

@TechMindsOfficial 4 роки тому

Thank you sir :)

@lukasblenk3684 3 роки тому

Well the Pluto is a SDR containing a full ARM Cortex-A9 running Linux. ^^ I am still stuned by the price.

@dxscotland5901 4 роки тому

Excellent job looks very neat👍

@TechMindsOfficial 4 роки тому

Thank you! Now just need the leaves to drop off and I'll be able to talk again.. lol.. Will go portable soon for a real test! :-)

@alexscarbro796 4 роки тому

Since the RX IF is relatively low frequency, you could buy or build an RF power limiter to replace the 20dB attenuator. This would help optimise the RX noise figure. Although it would be worth doing a noise figure calculation for the system to ensure that the improvement would actually be worth the effort. Alternatively, if you were feeling really adventurous, you may be able to remove and bypass the last IF amplifier stage in the LNB. That way you could more closely match the maximum output power of the LNB with the maximum input specification of the Pluto. This is probably the best solution for optimal noise figure and largest dynamic range. Great work, and thank you again for sharing this with us all!

@TechMindsOfficial 4 роки тому

Thanks for the comment @Alex Scarbro, very interesting indeed. Not sure if anyone else has done that before. The signal that you can see in my videos is highly attenuated because 10GHz doesnt like trees and leaves, but I'm sure when I go portable with a direct line of sight I will be seeing a HUGE leap in SNR. Time will tell I guess, just need to be allowed out by the government to do these tests. Thanks for watching ;-)

@beanondaddy3397 4 роки тому

It's very interesting, I never knew there was "Ham Radio" like satellite service running on 10GHz. Opened my eyes to a whole new option.

@mikevhx5682 4 роки тому

Not usa

@glenwoofit 3 роки тому

Watching your channel costs me money. Lol. Another part ordered that might find a home in the junk box. I'm setting up a QO-100 station.

@TechMindsOfficial 3 роки тому

Haha 🤣 It’s an expensive hobby! But so so much to learn and play around with :) Thanks for watching, appreciate it 👍

@Steve-GM0HUU 4 роки тому

Great video thanks. I have a Pluto and was wondering how go about using it for tx/rx on QO-100. Your video is a great help on how to go about doing this. Hope the plan to go /P works out. Thanks again.

@TechMindsOfficial 4 роки тому

Thanks Steve! Hopefully I’ll be going /p very very soon :)

@acestudioscouk-Ace-G0ACE 2 роки тому

Interesting as always, thank-you! Do you know if the Pluto Plus is on general sale now please? I'm thinking of getting into satellite in 22.

@mabo4848 3 роки тому

Great tnx !!

@krisraps 3 роки тому

I Just Ordered The Dolphin Receiver On Ebay Wich Goes From 100KHz To 1.7GHz ! Cant WaityTo Connect to my DIY Antennas

@LunaWuna 4 роки тому

I wish there was a satellite like that where I live

@SopanKotbagi 4 роки тому

Does anybody have a link to the circuit diagram of the 5W 2.4GHz amplifier?

@shijinedathinethu08 4 роки тому

Please make a video on configuring Pluto on LAN

@TechMindsOfficial 4 роки тому

Sure, that will be coming very soon :-) Thanks for watching.

@mrnother 4 роки тому

A previous build of yours was based on a LimeSDR. Now you changed to Pluto. Only because you could replace the OCXO with a more accurate one or are there any other reasons? Really looking forward to your field test 👍

@TechMindsOfficial 4 роки тому

Yes, mainly because the TCXO was easy to replace, but one other reason is that the Pluto can use Ethernet over long distances. I didn’t get good results with long USB cables with the LimeSDR Mini.

@vitomaltese 3 роки тому

Sorry, haven't seen that part list is mentioned in the extended description of the video...

@surplusdriller1 4 роки тому

would it not be a good idea to have shelding of the components like PS, sdr, amps etc and the whole case? and where can i buy the 2.4gHz PA?

@TechMindsOfficial 4 роки тому

Absolutely, and that’s something I forgot to mention in the video. I will be shielding the amp and using Ferrite rings on the cables. Definitely advisable with everything compact and so close together. Amsat UK sell these amps.

@Richardincancale 4 роки тому

Hi - nice job! Can you give a pointer to the waterproof enclosure you’re using please? There didn’t appear to be an ‘O’ ring in the lip - what do you think about the waterproofness (is that a word?!) ?

@TechMindsOfficial 4 роки тому

Sure, take a look at the parts list here: www.m0dqw.com/2020/05/11/188/

@stevechampion9439 3 роки тому

@@TechMindsOfficial Is that a Bullseye LNB and the Passion 2.4GHz feed? Didn't see on your parts list ...

@kodyeliason1389 Рік тому

I wish there was a geostationary satellite like QO-100 over the US, I feel like it would get a lot of use

@TechMindsOfficial Рік тому

And then have a portion of it linked to QO100! How cool would that be!

@stewartpereira5442 3 роки тому

Thank you for the great videos, please can you post one on connecting the pluto to ethernet.

@jemussi7842 3 роки тому

Died in the wool Afrikaner QSO @ 6:30 !

@Orthodoxuk 3 роки тому

Which xtal osc mod did you use?

@ishakmuhamad2535 4 роки тому

Nice video. Tqvm. Stay safe...

@TechMindsOfficial 4 роки тому

Thanks! You too. 🙏

@mabo4848 3 роки тому

Thank you !! Great ... a question , do I need to give a external gps signal to Pluto to stabilize or is it ok to use without ? 73 Marco

@TechMindsOfficial 3 роки тому

I would recommend either using external gps OR like I did, which is to replace the TCXO to a higher stability.

@mabo4848 3 роки тому

@@TechMindsOfficial ok thank you !

@gabrielmartinmiguel2173 3 роки тому

todo ese equipo tienes que ponerlo en la misma antena, tienes que hacer un transceptor para ponerlo en la misma parabolica y te comunicas con el por ethernet.

@Orthodoxuk 3 роки тому

If you can use ethernet, is it possible to use wifi and make it remote save for the power?

@KelseyBlack 4 роки тому

Do you have a list of the parts used with source links available?

@TechMindsOfficial 4 роки тому

www.m0dqw.com/2020/05/11/188/

@midimagic7097 4 роки тому

The ImmersionRC is rated at +30dBm but you have it showing 37.36dBm ?? Is there an offset ?

@TechMindsOfficial 4 роки тому

Yep, I’m using an external 10dbm attenuator so I entered that offset into the RF meter.

@F5VMJ 2 роки тому

Bloody'nora that CN4017 gets hot! You could fry an egg on it. Did you undertake to implement any cooling?

@TechMindsOfficial 2 роки тому

Kind of, I used a small fan blowing directly onto it. Think it gets hot even without any drive.

@creator4X6YS Рік тому

Where can I buy the lnb?

@fabhorvi7236 4 роки тому

Is the 20db attenuator is really usefull ?

@TechMindsOfficial 4 роки тому

It protects the front end of the Pluto as the signal from the LNB is extremely strong.

@truhmi 3 роки тому

Great Video, trying the Same Setup. Is it Not neccesary to switch the PA with a PTT Signal? 73 DG6UAX

@TechMindsOfficial 3 роки тому

The amp in the video is okay to be ran with constant PTT, but you can modify Pluto to provide a PTT if required. I now use the new SG Labs amp which had RF switching for PTT built in.

@Drvarnick 2 роки тому

do i need a band pass filter for 2.4 Ghz or it is optional?

@TechMindsOfficial 2 роки тому

I would definitely recommend one. If you’re using the CN0417 pre-amp then that already has one built in.

@JNET_Reloaded 4 роки тому

put the dish on the roof :) or side of house!

@TechMindsOfficial 4 роки тому

Wish I could but I live in an apartment on the ground floor, I already have a couple of ham antennas on the chimney so dont want to push my luck lol..

@JNET_Reloaded 4 роки тому

@@TechMindsOfficial then built a shed and use roof of the shed? lol

@lukasblenk3684 3 роки тому

What i can highly recommand: get two fiber optics converters for ethernet this helps isolating your network card / switches from lightning. I folowed this instructions to setup my pluto: oe7wpa.com/index.php/projekte/elektronik/datv/qo-100-mit-dem-adalm-pluto/qo-100-datv-betrieb-mit-obs-und-pluto-sdr-mit-custom-firmware . I also plan on modifying it to have an external clocksource wich will be generated by a GPS Discipined OCXO. Wich will should give enough stability to tx DVB-S.