The scanner app in the Mayhem firmware has pre-defined frequencies.

Is there a way to upload an export from RadioReference to the scanner app?

Thanks!

Bonus Points if someone has some frequency list other than what is included, or knows a repository.

I just wanted to say to everyone that if they are interested in obtaining a HackRF they should definitely get it from OpenSourceSDRLabs. I wanted to give everyone an update on the issue that I was having with my first unit and how no matter what I did I couldn’t get it to work with any SD card no matter which card I used or whatever format I tried so I emailed the guys over at SDR Labs and they were very professional and after we went through all of our options on how to get it to work. We agreed that it must be some type of hardware issue and after coming to that conclusion they sent me out a brand new unit free of charge including all of the same accessories that I had received the first time… so after receiving the unit that I didn’t even know they sent me ( I got it today!) I came home and it was on my porch to my Surprize! So I plugged in the SD card and it worked right away so needless to say I was ultra happy and excited to finally receive a working unit!!! So I just wanted to give Kevin and the rest of the guys at OpenSourceSDRLabs a shout out and to let everyone know that they are fantastic stand up people over there at the lab and I would recommend them to everyone who was considering getting an H4M unit!! Awesome!! …and thank you very much Kevin and the guys over at OpenSourceSDRLabs!!! Very professional and helpful! Thank You Again!

I have a hackrf one porta pack that I plan to use a end-fed 40m antenna with. Ive heard that these guys are sensitive as heck and want to know what all would be required to both transmit and receive. I know that i need a band pass filter when transmitting as the transmit signal has lots of noise. What the ultimate goal is to be able to amplify the output (preferably 20w out or , filter said transmission to rid any noise, make sure that the recive end matches the 50ohm that the hackrf is expecting, and whatever else may be needed to get the best clean result without breaking my unit.

I created a PDF manual for the H4M, this was for my own use and searching. Maybe this may be of use for the community. I just received mine and was finding the website, with its various links, harder to navigate and search. This is very much a work in progress and may not be completely inclusive of all the wiki info.

Link to manual

Create, in the shortest possible way, a .bat code that, when executed, turns off the PC and leaves it completely UNUSABLE (all that's left to do is throw it in the trash)

Hello, I want to buy a H4M with portapack. I have one question, I want record signals from graves radar (143.050 MHz) to measure meteors activity and I need constant recording. Is this possible with the HackRF? Also can I connect a discone antenna?

Thanks

Greetings All!

I'm looking at adding a GPS via the GPIO port on my H4M, I have a NEO-6M GPS module which I have successfully used on other devices (M5stack and Lilygo) and as I've upgraded to the H4M I'd like to migrate the GPS to it 🤔 I can figure out the power side of things but unsure which pins the TX/RX from the module need to go to? I'm probably being dumb and probably already read it somewhere but I just need some clarification 😆

TIA

Hello fellow hackers ---

So i recently got the H4m Mayhem board and trying to configure it -- but no dice --- heres the situation (with video and details enclosed)

Formatted microSD (correctly) and turned on device --- blank screen

Plugged board into Mac -- nothing.... Plugged board into windows --- nothing (although it does appear as a device in taskbar --- so at least windows sees the actual board)

i've tried ALL the wiki help stuff -- including all the left button start up booting... even tried direct firmware update through app on windows --- nothing

unplugged and replugged battery.. check ribbon screen connection ... nothing

please help! wanted to ask you guys and gals before I went directly to opensourceSDR

Board rev. R10C

Screen module - HackRF Mayhem H4M

SOLVED -- unit turns on functions --- however.. new problem.. NO AUDIO! -- maxed out volume settings --- get a very very faint signal... headphone jack doesnt work either... getting very faint sound

https://reddit.com/link/1ibfo6e/video/ez8glrwaukfe1/player

I tried to do this using simply the "Audio RX" app, and I don't get any signals when scrolling around local repeaters with the step on 25khz, and the modulation on either NFM or WFM. Is there anything else I should try besides changing antennas and amplification levels? I even tried changing the bandwidth.

I have verified that these same frequencies are reachable from this area with my actual ham radios. Strangely, I am also unable to receive known commercial radio stations with the Portapack H2 either - there is simply no signal at the frequency or within 1Mhz above or below it when I use either SPEC or WFM/NFM. However, the radio works in general - I have been able to receive key fob/remote signals, and I have been able to listen to other commercial radio stations that I am not looking to listen to. :) The commercial radio issue throws me off because I don't understand how it's possible that in any FM mode, the Portapack completely doesn't receive signal from a commercial station that is likely broadcasting very high wattage, when all other consumer radios in my place receive it just fine.

I do not know exactly how commercial stations set their stuff up, but I'd be surprised if e.g. 95.5 was no where near 95-96Mhz whatsoever. I am using Mayhem Firmware.

Hello for some context a couple years ago I used a radio transceiver to press unlock on my 1999 Honda civic then replay it to unlock the door and I want to revisit this again

Let me know if I’m missing anything and here’s how I plan to do it soon once I figure it all out just as a hobby

1. Use a laptop, use an antenna like hackrf1 to receive ASK by pressing button on driver door
2. Use another antenna 20 ft away and place it by the key fob and send the ASK to the key fob
3. Capture the PSK return and send it back to the hackrf one and play the PSK to open the door

Not sure what antenna to use yet for either but open for suggestions please let me know if I missed anything

Car I’m planning on testing is my 2016 Camaro or my 2015 Hyundai genesis

Where can I purchase an authentic one?

My hack Rf h4m freezes directly after the start this problem has arisen after the update to version 2.1.0 if you get it in the view where you see which core is how heavily used you can see that only the core mO work and m4 not at all over all a zero behind I would be happy if someone has a solution for me because I this device quite quickly again

I need

Mein Hack Rf h4m friert nach dem Start direkt ein dieses Problem ist nach dem Update auf die Version 2.1.0 entstanden wenn man es hin kriegt in die Ansicht zu kommen wo man sieht welcher Core wie stark ausgelastet ist sieht man das nur der Core m0 Arbeit und m4 gar nicht über alle eine Null hinter ich würde mich freuen wenn irgend jemand ein Lösungsansatz hat für mich da ich diese Gerät recht schnell wieder benötige

Okay, so admitted newb here as stated in the title. I've been researching SDR for some time now and with the newest production of the hackrf, I think I'm finally going to spring for one.

I have concerns related to several YouTube videos I've watched. They say that it you don't correctly attach the antennas you can blow the amp or another part. But on some websites I see antennas (I'm sure you guys have seen it, it's kind of large and rectangular) that way they work from like 1MHZ to 6 or 7 GHZ, I can't remember if it's 6 or 7 GHZ.

So my question is this. Is there one singular antenna that you can use with the hackrf to avoid that potential issue? Or is it truly necessary to use all of these different antennas and put your device at risk?

I know there's one version of the hackrf that supposedly fixes this issue by including some diodes into the PCB, but I would really like to get the latest version.

Any advice or words I can learn from will be very appreciated.

Hi there,

I'm running a PortaPack H2 on v1.7.1

Both my speaker and headphone outputs suddenly stopped working.

Tried successfully:

• Tested another speaker
• Tested another pair of headphones
• Replaced CMOS (unplugged main battery for a minute while it was out)
• Reformatted SD card

Tried unsuccessfully:

• Updating firmware. Using a Windows 11 laptop and can't get it to recognise the Hackrf. I've tried 3 cables and 2 ports.

Beyond this, it's above my current knowledge so I'm hoping someone can help.

I can't tell for sure but maybe the CMOS died around the same time, in case that means anything.

Let me know if you need any more info to clarify!

Thanks all.

The rotation ring is hard to distinguish from outside "button" ring by touch and it is slippery, dots are just not enough.

Someone fixed it by 3d printing an overlay for it, it works much much better, but the printed part needs to be glued to the knob.

https://www.printables.com/model/1066168-scroll-wheel-add-on-for-hackrf-portapack-h4m

https://www.printables.com/model/1096252-hackrf-portapack-h4m-rotary-encoder-dial-upgrade

Is someone maybe aware if the original ring can be taken off without breaking the controller?

I would like to make a completely new ring, if possible, before using the glue...

Are there any repositories or a website I can get games for the hackrf?

The mayhem firmware comes with Pac-Man and Tetris but seeing as though the flipper has an extensive catalog of games, is there something similar for the hackrf?

I would really love to see a video poker or 2048 game played on the hackrf with may firmware

I recently sold something on Facebook market a bag and there was something very valuable inside. I was talking to the buyer and they were going to send me there address but after I sold the item all the messages dissapered. I need to get in contact with them again. Please someone help

Just got HackRF H4M, love it! Just one question, is there a specific way to set the time and date?

Hi,

I’m using the microphone app trying to get to a repeater but how can I select a shift down for the tx?

Wondering if anyone has any tips they can give me, either here or in a PM, about getting a H4M shipped from OpenSourceSDRLab into the US.

I've seen one post mentioning theirs got stopped by customs, and were facing charges due to some of the features on the device. Although my understanding was the device would not come with the OS loaded onto it, so I'm unsure what happened in their case.

I'm pretty fresh to this hobby, and would appreciate any advice you have. Thanks!

Anybody have the link to where I can buy a HackRF preferably H4M ?

So, this is totally unrelated.. I think. Anyway, I found an am station the other day with a repeating audio message saying "I got your packets I got your packets ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha" followed by a few other garbled nonsense in this silly, but seemingly taunting message. I'm at my wits end here trying to figure this out. I found a device that's a telematics Bluetooth device under the dash. I promptly disconnected it and a few weird things happened:

1. The radio completely lost power
2. The auto dimming rear view mirror (which I didn't even know was a thing) became much brighter and thus much easier to look with. Evidently it was stuck in super dark mode, which explains why I couldn't see Jack with it.
3. The cars overall performance seemed to increase. A lot more horse power and a smoother idle.

Flash forward a few weeks, I get in my car and drive somewhere maybe an hour away. While on the interstate, my radio randomly kicks on and works just fine. Device is still unplugged.

I know very little about coding and YouTube videos are VERY hard to follow. Too many acronyms and it's just too big of a field for me to make sense. I understand certain things like raspberry pi and low band hacking a little better now. But still haven't scratched the surface, I'm sure.

This is driving me nuts. And I am asking for someone to possibly point me in a direction that may help.

There is more to this story, but I'll keep this short out of respect to the community. I'm new to reddit as well.

Also, idk if this means anything. But, I live in an area where amateur ham radio is EXTREMELY popular. Every other household seems to have some sort of yaggi or other antenna running on what I'm assuming is low band frequencies. But non of it makes sense to me and finding dumbed down information on it is extremely difficult

Ok so my plan is to use pulse modulated waves to transmit but portaback h2 transmit apps are not anything like that or is there a way to do that? Replay doesent let me run scripts and its the only one that has option for script to run in loop. But my question here really is i need full duplex tranceiver so should i buy another portaback h2 to act receiver and other as transmitter or should i buy pluto sdr or lime sdr to get full duplex? And also i need the tranceiver to be portable without need of pc or laptop so it would have to run with battery just oike portabacks can

Okay so I am looking for help because I was assigned to a university project who's goal is to detect and mitigate against signal jamming. Our team's current plan is to jam a signal using the HackRFOne and kind of reverse engineer this attack to be able to protect our network from these kinds of attacks. After doing some basic research, I see all over the internet that jamming is obviously illegal. So I guess I am just asking for recommendations on how else to carry out this project? Is using the HackRF One out of the question for doing something like this?

I also saw some recommendations to perform jamming experiments using a faraday cage, but we do not have one readily available and I also have read that if you attempt to build one and it is not properly sealed, it could end up amplifying any signals coming from within, is this true? If so, is there another way to conduct these experiments in a controlled environment?

Apologies if this comes off as noob-ish, I know little to nothing about jamming and the work it entails as I have just recently come on board with this project. If none of this is worth even experimenting with, knowing why would be great information to take to my professor to let them know we are wasting our time on this effort. Thanks!

If anyone of you can help me on this it would be greatly appreciated i just need a lil help on it if anyone of you can comment a video that is step by step that would be nice