Build Your Own Digital Radio Scanner With OP25 Mobile Control Head App

▶️ Build Your own Digital Radio Scanner with OP25 Mobile Control Head
🔴 Early Videos/Support The Channel: / sarahroselives
🔴 Video Resources
OP25MCH: github.com/Sar...
OP25Display: github.com/Sar...
OP25: github.com/boa...
Join our Discord Server:
/ discord
✅ For paid support contact Sarah Rose on Discord: / discord
One-off Donations are accepted via CashApp tag $SarahRoseLives
▶️ Affiliate Links ( Buy Stuff and Help me Out at the Same Time )
RTL-SDR v3 Kit: amzn.to/4bOz5iA
L-Band Inmarsat Antenna: amzn.to/4bVYWFe
Broadcast FM Filter: amzn.to/3SiAuaq
Wideband LNA: amzn.to/3A4hVjC

[@MertNazmiSerin]

nice to see you again. Thats makes me smile. Please never give up.

[@SignalsEverywhere]

Thank you, I'm happy to be back

[@TheMadRocker]

Welcome back. This project looks amazing and I can't wait to see where it goes.

[@oliverw.douglas285]

Glad to see you back at it. Your experience & insight in all things radio has been sorely missed.

[@Mad4Wx]

You're awesome Sarah! Glad to see you back in action!

[@videodude8137]

Hello Sarah. This is my first time on your channel. I love SDR and have the RTL-SDR V3, RSP1A, and RSP1B. Your video was refreshing. No unnecessary music, and gimmicks. You are very articulate and knowledgeable. Thank you!

[@SignalsEverywhere]

Thanks for watching, glad you enjoyed it.

[@load_nikon6435]

Holy shit this is amazing! Great work and so glad you're making this public data accessible and approachable.

[@dav651why]

GREAT to see you back. We don't have P25 here but looking forward to all your other good content in the future.

[@microwave-vh2uc]

Its great to come across you again. Thanks for all your content

[@lostcosmos]

Right on! Great work! I love your 'scan grid' idea!

[@KirkMillwood]

Glad to see you back on KZbin. I'm thankful that you have produced a lot of interesting and educational videos. Looking forward to future videos.

[@SignalsEverywhere]

Thank you, it's great to be back

[@chriholt]

Sarah! I was worried that I'd never see you again - welcome back!

[@SignalsEverywhere]

I wasn't sure I was going to come back either but I'm glad I did :)

[@chriholt]

@@SignalsEverywhere So am I! :)

[@FrugalRadio]

So great to see this project moving forward. And so exciting to see the SignalsEverywhere channel back again :-)

[@SignalsEverywhere]

Happy to be back at it again!

[@reillyspitzfaden]

Welcome back and great to see you again!

[@montef]

Sarah! How strange. I was just thinking about you and your channel yesterday, and wishing that you were still here making interesting and valuable content…. Really glad to see this video pop up. :) Best of luck with your new project. Looks like you have already made some good progress. Keep up the good work!

[@SignalsEverywhere]

Thank you so much!

[@SnottyW]

Right! I've been trying to find any updates from her the last couple days.

[@TheSemtexCow]

Hey you’re back ❤ hope life’s been good 🙏

[@marklt1]

Great to see you back online! This is a really cool project. I've been an avid OP25 user and developer for 6 years.

[@SignalsEverywhere]

Thank you, it's great to be back. Thanks for your effort and service as well in regards to OP25 development. It really is some amazing software.

[@Gaominte]

Couple of days ago I was re-watching your video on DECT cordless phones. Now your new video on P25 appears in my feed! So glad so see you back!!🤗

[@SignalsEverywhere]

Awesome! Thank you!

[@ScottHarper-th4no]

Awesome new / revised project , look forward to trying this out. Welcome back Sarah , keep smiling ❤🙏

[@SignalsEverywhere]

Thank you, good to be back

[@mjw_geek]

I'm so so glad to see you making content again. Just know that you were missed and definitely not forgotten. I am using the SDR's I got from you all the time in my shack. I'm absolutely looking forward to anything and everything you put out here. Thank you so much!

[@SignalsEverywhere]

Thank you, I'm glad to be back!

[@andycampbell8476]

This is going to rock! I just recently got a Uniden SDS100 with all the digital modes, but I’m all for open-source solutions! I’d love to be able to scan the amateur digital modes too (DSTAR, Fusion, M17, etc.), something the commercial scanners don’t seem to offer. I’m very glad you’re back on! Don’t let the lids get you down. Radio always should progress.

[@SignalsEverywhere]

Thank you, right now we're just scanning P25 but OP25 does have some DMR support. Considering messing with SDRTrunk as a method of doing this too. More support would be great, I'd use DSD if it wasn't windows only

[@BrianHall]

Great work, and great to see you still contributing to this awesome hobby! Well done!

[@45Unit]

Welcome back. I recently started working with OP25.

[@Terribleguitarist89]

Glad to see you back, always had some of my favorite radio content.

[@SignalsEverywhere]

Thank you, I'm a little light on equipment but I'm working on getting things up and rolling again :)

[@MELERIX]

glad to see you are back!, and with really useful information for HAM users!

[@resnview]

Keep making these videos The only channel that I've found that explains inndept please nd thank you stay scanning the spectrum

[@SignalsEverywhere]

Thank you, got some fun stuff coming up. Can't wait :)

[@Just_a_simple_aussie]

Mate awesome to see you back :) hope all is well and can not wait for more SDR stuff , could you look at satellite feeds ? i am currently playing around with my hackrf and some old sat gear

[@SignalsEverywhere]

I need to pick up or build some antennas but I'd love to get into SATCOM again. I have a soft spot for it.

[@Travelinmatt1976]

Awesome! I've been looking for something just like this to run on an android tablet

[@n1ti]

Looks like an awesome project with a focus on ease of use. . I can't wait to try it later this week. Is there a direct link to the Pi image?

[@SignalsEverywhere]

Here you go! mega.nz/file/GVdmHCyZ#YEzoUWxMdqsqHO8FFgzyPJzrthHx9cy6uFr6C0GKt7Y

[@n1ti]

@@SignalsEverywhere Thank you!

[@fletcherreder6091]

I heard some Hams were playing around with P25, and I was meaning to look into it. Nice to get to hear about it from you!

[@ДмитроЧерненко-т7щ]

Greetings from UA. So glad to see video from you Sarah. You are a star!

[@HobbesBaxter]

Thanks! I'm looking forward to seeing where this goes!

[@daniell8387]

welcome back! Stupid algorithm didn't let me know.

[@SignalsEverywhere]

Thank you

[@Symbiiotic]

Hello Sarah! Nice to see you again!

[@SignalsEverywhere]

Nice to have you here as well :)

[@MrKillingsniper]

Wow. Nice to see you again.

[@SignalsEverywhere]

Glad to be here :)

[@kautionfpv]

Whoa, this looks extremely cool! Its nice to see someone design a real UI and not just another web app too. Nice work!!! You have a new subscriber now

[@SignalsEverywhere]

Thanks, I hope to continue updating it over time to make it fully functional.

[@wxfreak]

It's great to see you back! This is a really cool project, I think I may give it a go. I struggled to get OP25 working on the laptop but I'm very happy with it now that it runs well.

[@jameswest3275]

i hope you can develop a scanner function in your app that searches between two frequencies and instantly locks on a transmission and listens then auto stores it, similar to a SDR# plugin. A "near field" function would be great. keep going!

[@ManuelPinner]

I'm Glad to See You making Videos again,

[@SignalsEverywhere]

Thank you, it's good to be back

[@smokey136]

Welcome Back, you were truly missed…. Hope to see many more videos from you.

[@beachcow1650]

Your back! Nice to see you

[@worm628]

I love this! I just discovered your channel and will be following closely. Video quality was great, honestly. Simple, to the point, not a lot of faff!

[@octothorpian_nightmare]

Wow cool, I always thought you needed two tuners to track the action. Nice work on the display head and everything, looks tight.

[@SnottyW]

So incredibly happy to see you back!!

[@75blackviking]

First time viewer. This is soooo cool! I'm blown away by the level of detail and features you've incorporated. I had no idea these various technologies could be integrated. Very nice looking UI, by the way.

[@SignalsEverywhere]

Thank you, I still have a lot of work to do but I'm happy to be making progress on it again.

[@dave_dennis]

I have learned so much from you. I am so glad to see you active again and look forward to seeing your interesting videos.

[@SignalsEverywhere]

Thank you, good to be back

[@TerminalFailSafe]

Nice to see you again! This project is very, very interesting!

[@MattPayneOrg]

This is awesome! I've just joined your patreon. Thanks for all of this great content. I'm a new ham.

[@SignalsEverywhere]

Thank you for joining, I will be doing an update video on this project soon so be on the lookout for an early video release on patreon.

[@daviddickey9832]

Omg you're back!!! I'm so glad to see you're back!

[@kd7alt]

Totaly awesome. Love the portable aspect of it.

[@SignalsEverywhere]

That was my goal, something that can go with you and be usable on the move.

[@carlbarringer182]

Great to see you back!

[@tuxbunny-foof]

Welcome back, been a long time since I have seen you, excited to see what's next!

[@alanmcferrin]

I love this! It would be neat if you could park the RPI somewhere and do remote control and stream from the RPI to the app and then send the audio out the phone or bluetooth.

[@SignalsEverywhere]

That's the eventual goal but grabbing the audio stream in real-time under Kivy on Android have proven difficult so far.

[@charlessummers3461]

This is awesome glad that you are back

[@djdonbentley2141]

Good to see you on here friend. Hope everything is going well . As always , great video.

[@kh6qmchristophercolquhoun695]

Great to see you back

[@SignalsEverywhere]

Great to be back!

[@VK2GPU]

Good to see you again!

[@SignalsEverywhere]

You too!

[@Alicesmindisblown]

Welcome back fellow NE Ohio resident!

[@jaypee9785]

welcome back sarah

[@yakmedic8511]

Welcome back, cool project

[@claudioi2ndt313]

WOW Sarah!!! WELCOME BACK!!!

[@VA3JPX]

Hey Sarah, Welcome Back!

[@SignalsEverywhere]

Thank you, good to be back

[@CeliniaGava]

OMG! Welcome back!!!

[@SignalsEverywhere]

Thanks, great to be back!

[@DanKuches]

This is slick, thank you! I can't wait to try it, and that will be soon. Very cool and needed.

[@SignalsEverywhere]

Awesome, please report any issues I didn't address in the video so I can fix them when you do.

[@TheHermitHacker]

OMG this is awesome. Thank you so much!

[@toddstratton9197]

Hell yeah, Good to see you back at it. Can't wait get a raspberry pi and start running your setup.

[@SignalsEverywhere]

Let me know what you do as I continue to implement features and bug fixes

[@moormoor4281]

Thanking you from England

[@axisbloodmoon3693]

I really like working with the rpi vs android, but this is great.

[@jamesbuckingham8073]

Watched to the end; very cool I think. Why would I use this now and in the future. Technically over my head; curious though,

[@SignalsEverywhere]

Trying to simplify it as much as possible, more to come.

[@x_CrossHair_x]

WOW This is Slick (Keep Developing this.) I Don't have a Raspberry Pi YET.. But.. This gives me another excuse to get one. (So many Cool things it can do) 👍💡👨‍🎓

[@SignalsEverywhere]

Thanks, getting ready to announce automatic site switching

[@gregspeakman9337]

Great vid and products.

[@rebel_jedi]

Brilliant ! 😍

[@kayleehitchcock6517]

Welcome back sweetie I am so glad to see you

[@k5map]

This is an awesome solution... I don't have an Android so do you have any plans to allow for a web connection to the RPi so one could use non-Android devices (i.e., computers, iPhone, etc.)?

[@SignalsEverywhere]

This application will run on Mac Windows or Linux as it's developed with Kivy, just run main.py There is also the previous release I never finished. github.com/KR0SIV/op25mobileControlHead

[@k5map]

@@SignalsEverywhere Thanks... I was hoping for URL access without having to install Python but still a great solution.

[@bananatransommedia9624]

This is awesome! This is exactly what I've been looking for.

[@SignalsEverywhere]

Let me know how it works out for you, I have a lot to update on it.

[@JTM_djg]

This is so awesome!

[@MrGabigabi]

amazing work, thanks

[@barrymayson2492]

New subscriber here, this is some great work . Look forward to seeing the updates.

[@SignalsEverywhere]

Thank you! Welcome to the channel.

[@SteveNilsen]

Hi! Nice to see you back!

[@SignalsEverywhere]

Nice to be back :)

[@88njtrigg88]

Thank you for your research. Have a good one.

[@yv6eda]

Great project Sarah! Thanks!

[@SignalsEverywhere]

Thanks for watching :)

[@JonMarshall]

Nice!! Very very nice!

[@digitalchaos1980]

Hey! Welcome back! Glad to see you didn't let sh*t get ya down in the end. Keep on keepin on 😎 BTW, this app is amazing!!

[@SignalsEverywhere]

I just couldn't stay away, thanks for being here :)

[@digitalchaos1980]

​​@@SignalsEverywhere You're very welcome! Your one video from a few years or so ago, about the mobile SDR setup with the Windows tablet, was a HUGE influence for me with my own setup. When you left I looked for that video everywhere to watch again. I ended up mounting a Surface Pro in my Jeep and want to set it up similar to how yours is / was. Again thank you for what you do! Edit : Removed the question as the video answered it. I missed it the first time I watched. 😎

[@SignalsEverywhere]

@@digitalchaos1980 Glad to hear the video was helpful, Love hearing that you got something setup in your own mobile.

[@digitalchaos1980]

Hey Sarah, I hate to bother ya but I have a quick question. On your GitHub page with the instructions for setting this up, you say it'll take "a LONG LONG time." Do you have a rough ballpark of how long it should take a typical Rpi 3B+? I am on my second install attempt. The first time I got thru option 2 of the script, then got into option 3 a ways and fell asleep for a while. Woke up and the screen was off and the Pi was still on, and what looked like some IO activity, but the system was not responding to anything. So I gave it a few more mins and pulled the plug. Re imaged my SSD, and started again. This time I stayed awake lol, and got into option 3 about 89% and the system went unresponsive once again. Screen was still on though. I went to the store and came back and the screen was off again and no response from the system, but the IO light is still flashing, so I'm wondering if it's just in the middle of an intense IO activity or if it is genuinely hung up. Thus the question about how long it takes. I would hate to pull the power again if it's actually progressing. Thank you in advance for any response! 😎

[@Michael-qn6rr]

I'd like to suggest, if possible, to allow the android device to play the OP25 audio, instead of and/or in conjunction with the audio from the RPi.

[@SignalsEverywhere]

It's a work in progress, I hope to get audio out to the control head but haven't yet figured that out.

[@gra2121]

great work and nice to see you back. Are you going to use the phone or and external gps with the pi for location scanning?

[@SignalsEverywhere]

Planning to use the phones GPS

[@JasonHarvey-wu8yr]

Fantastic content, not many are doing it so thank you Sarah and welcome back! I am an iOS user, no Android unfortunately. I own an RTL-SDR v3 and an RPi 4, in the box with the tiny 2.5" touchscreen. Do I have to use it as a server for Android with this image? Can I just set it up to use on the RPi? It's mostly P25 Phase II where I am, will it work?

[@SignalsEverywhere]

Technically yes most of this will run under Linux directly, you could run it on the pi with a display I just haven't set up the instructions for that. But yes, if you were to load the repo and run this locally it would work, the server and such would still need installed though. It's also possible to build an iOS app for it but I am not familiar with iOS and don't have a device to test with currently

[@NotPike]

Yay welcome back! :D

[@SignalsEverywhere]

Thanks, it's awesome to see you here still :)

[@deavanfazekas2174]

My wife and I miss listening to our local police and fire here in alberta, but they switched from analog radio to digital so our beaofeng no longer works, what do we need to listen again. Thank you.

[@SignalsEverywhere]

This project is still a work in progress, however with an RTL-SDR (link in description) software like SDRTrunk (free) you can easily listen to digital trunked radio systems.

[@ManuelPinner]

Tomorrow Night I be on the Amateur Television Network on 10 pm eastern standard time, it a very good net to be on,

[@PaulLoveless-Cincinnati]

Very cool. Just found your channel. Am getting into SDR. Am currently a licensed ham. What protocols will this decode?

[@SignalsEverywhere]

Right now it's only setup for p25 but it's capable of DMR and Moto SmartConnect

[@PaulLoveless-Cincinnati]

@@SignalsEverywhere ah of course l have heard of P25z.but op25 wasn't ringing. Very cool.

[@major751]

Hi there. Just found your channel. Love your work. Is this compatible with p25 2? Thanks. Keep up the great work

[@SignalsEverywhere]

Yes, this works with both P1 and P2 systems :)

[@TJK50014]

Great work! 😀

[@SignalsEverywhere]

Thank you! 😁

[@penelopelgoss2520]

060224. Newbie here. I used to be a true blue scan fan here in SoCal. Times have changed... trunking, and now encryption digital. SD County Sheriff is encrypted. Is this the type of scanning you're talking about? What's a Rasberry that you're talking about? Looking for a lesson and explanation. Looking to learn. Thanks!

[@SignalsEverywhere]

If it's encrypted there's still nothing you can do, if it's digitally encoded as P25 packets then we can easily listen in to that. but no, if they encrypt, they encrypt.

[@valknudtfarms4048]

Question, probably a dumb question, does the android phone have to have WiFi/data plan to operate this?

[@SignalsEverywhere]

The phone is just used as a display, however if you're going to import radio reference data you'll need the pi plugged into a network cable for it's initial download. Once that's done, everything else works without internet access.

[@PaulRichardson_Canada]

Awesome

[@darrenanderson7200]

Welcome back

[@Travelinmatt1976]

Will this be able to recieve and display multiple signals like sdrtrunk does?

[@SignalsEverywhere]

OP25 is capable but currently we prioritize first call in.

[@josesnyder840]

Is this possible to build with a small oled gpio screen?

[@SignalsEverywhere]

It can be done, but it would be different code than this. I've already done some experimenting with various screens

[@josesnyder840]

@@SignalsEverywhere sweet!!

[@josesnyder840]

@@SignalsEverywhere Are you going to make a video on how to make it?

[@SignalsEverywhere]

@@josesnyder840 Currently working on finalizing some of the bigger features of the control head, but I do have a GPIO display I have been testing with.

[@josesnyder840]

@@SignalsEverywhere thanks for your dedication to this community, hope to see in the future that oled screen working 👍

[@timpcw]

Where do you get the image for the PI you mentioned

[@SignalsEverywhere]

Image was outdated and I haven't made a new one yet so I reverted to just using the script, I may set up torrents for hosting these

[@ocsrc]

Can this work with P25 Phase 2 digital 700 MHz systems ? Have you looked at the PTC train system on the 220 to 225 MHz band ? The ATCS on 890 to 938 MHz band is already decoded using ATCS Monitor but the PTC is not decoded yet

[@SignalsEverywhere]

This will absolutely work on a phase 2 p25 system. I've looked into PTC but thus far have not found anything with it due to the fact that nobody has decoded it yet.

[@PY1SAN]

Great!