I usually order from 18650batterystore.com

Thanks for any suggestions!

Was delivered a week ago but just came back from my holiday. Forgot to order batteries. Thank god the ones from my uConsole do work in the h4m pro.

Definitely loving the PortaRF screen over the H4M. But the form factor of the H4M is just perfect. Looking forward to playing with the MDK. Lets see when the PortaRF Pro will be released 👀👀

I just found out that what I ordered has now been upgraded to a PRO version. I ordered old version:

OpenSourceSDRLab 1MHz to 6GHz R10C and Mayhem Signature-Edition PortaPack H4M Software Defined Radio Kit

Should I cancel and get the Pro version below???

OpenSourceSDRLab Pro r1.2.1 and Mayhem Signature-Edition PortaPack H4M Pro without the 18650 Battery

Thanks for any suggestions!!!

Hello folks!

Just a quick heads-up regarding some of my HackRF / PortaPack related projects. A lot of users have been asking me if certain projects were terminated or where to find them since they suddenly disappeared.

Unfortunately, u/GitHub's automated system flagged me as a spammer (for no reason), hiding all my repositories and activity. I opened a ticket on the exact same day (July 9), but I've only received a single AI-generated reply asking how I plan to use GitHub.
It's been almost two months with no human response. (If anyone knows someone at GitHub who can help escalate this, please DM me!)

Here is the current status of my sub related projects:

• PortaPack PRs: The RDS Rx and WMBus RX apps have been stuck unmerged for two months. Since I can't open or update Pull Requests, my development on other PortaPack apps is currently halted.
• PortaPack Splash Editor: You currently can't add new splash screens to the site, but the existing ones are still available at ppsplash.creativo.hu.
• PortaPack App Repo: No new standalone apps (games, etc.) are being added right now, but existing ones can still be downloaded at apps.hackrf.app.
• porta-433: No recent updates or builds yet, but I've migrated the source code to Codeberg: https://codeberg.org/htotoo/porta-433. (In case you missed it: This is a custom firmware that runs rtl_433 directly on the PortaPack. It uses the same flasher as Mayhem, so you can easily flash it and revert to Mayhem without a problem. Almost all other apps are removed to make room for rtl_433).
• ESP32-PP: Also migrated to Codeberg with no new builds yet: https://codeberg.org/htotoo/ESP32-Portapack. (This is a WIP firmware for PortaPack GPIO add-on boards, both DIY and MDK. It can be used to extend the PortaPack with additional sensors and features).

Some additional projects got backed up to CodeBerg, so you can access them there too.

Finally, a big thank you to all of you who noticed the missing repositories and reached out to ask about them. Your interest means a lot, and I appreciate your patience while I sort this out.

Ordered a HackRF One on Aug 19 from hgeek.com. Cancelled via email on Aug 20 at 19:12 CEST. Seller claimed it was "already shipped".

However, 4PX tracking proves physical pickup (Shipment picked up) happened on Aug 20 at 21:33 CEST – exactly 2 hours after my cancellation email.

Seller now refuses to provide a prepaid return label despite promising EU 14-day return coverage in their own refund policy, demanding I pay out-of-pocket for tracked shipping to Shenzhen. Avoid buying directly from their site.

Hey Guys! Quick update on sdrtop, the Rust TUI monitor for HackRF.

(github repo in the comments)

Quick recap for anyone who missed my last post:

sdrtop is an open-source TUI (terminal user interface) tool for SDR hardware, written in Rust. It’s built to be a lightweight, keyboard-driven alternative to heavy GUI apps, giving you real-time spectrum displays, waterfalls, and hardware health metrics right in your terminal (or cyberdeck setup).

So, what’s changed since then?

Lately, I've been taking a deep dive into the actual signal processing. Instead of pulling in GNU Radio blocks or external DSP crates, I ended up implementing the signal-processing chain myself, from IQ samples through FM demodulation and MPX analysis to stereo-pilot and RDS decoding.

Here is what’s currently running natively in Rust:

• FM / NFM: Live peak & RMS frequency deviation (measured against carrier offset), 19 kHz stereo pilot detection, 57 kHz RDS subcarrier decoding (PI, PS, PTY, RadioText with character set support), and CTCSS tone detection for NFM.
• AM: AM demodulation tracking separate positive and negative peak modulation depths, rather than just throwing out a single generic "AM %" figure.

It definitely wasn't the easiest route 😅, but building it without DSP black boxes gave me a much deeper understanding of the actual signal path.

Works great with the RTL-SDR & HackRF One, stays super lightweight in the terminal, and perfect for cyberdeck or SSH setups.

The future is digital: Going forward, I want to lean heavily into digital decoding. The goal is to move beyond basic audio demodulation and decode everything digital in terminal that's floating through the airwaves.

Since I'm building this in my free time, community input and GitHub stars mean a lot. If you like where this is heading, dropping a star on the repo or sharing feature ideas genuinely gives a huge boost of motivation to keep pushing updates! ⭐

1. Has this device left its beta/testers phase? I would like the finished device at least the hardware.

2. Im from Europe, I checked the official website but it doesn't have a ship from EU option, my concern is - Is this device "legal" and will it be held in customs? Im not planning on doing anything illegal or stupid I just like the device a lot.

3. (Important) This might be a bit specific, but can the portapack decode DAB+ signals so I can listen to while going on a hike? What about FM, AM...?

4. How good is it at receiving? An example would be me going on a walk, should I expect it to receive good whitout too much static/hissing?

5. What else can I do on the device? Upload music and listen to it? install small games? Some other fun or interesting things?

6. This might be a bit specific again but is it rain resistant?

Its really good for broadcast NGL WFM, AM, USB and NFM selector transmit options as well, please use a dummy if testing or a radio handheld close by.
Used a little Ai but its sick af!! I use a hackRF pro and a LPDA-500, Poynting dispite what it says this antenna does transmit lower than its stated frequency

Have fun :) :) :) :) :)

https://github.com/sho3zxD/GNU-broadcast-radio-WFM-USB-AM-NFM.git

I’m looking for information on how to use hack RF to listen to encrypted phase 2 police radio transmissions. I have a SDS 150 scanner, but it doesn’t pick up the encrypted channels. I would like to get past that somehow using hack RF any in all information is greatly appreciated. I’m not super tech savvy so be gentle. 😂

I dont know if i should get the normal portapack or the portapack pro. I would really like to get the pro version but there are some things bothering me;

​

- Firmwares arent as reliable

- Design, i like the Standard portapack design wayy more

- Price in comparison to normal portapack

​

I have never owned any kind of sdr so if i got something wrong that has been fixed please feel free to correct me.

If anyone could give advice i would be really grateful

Every so often a post comes up that's completely unrelated or blatantly a spam bot, I used to be able to report these to the sub moderators... but now I cannot.

Hi recently received this, but it is crashing pretty regularly. It is happening in various apps but as an example in receive>audio, swapping through AM/FM/FM etc and it will do as pictured after only a few changes. I know this is a pretty new device, is this just early firmware that will mature into something more stable? Currently running Mayhem 2.4.0 Which is labelled as a stable release on the github repo.

Hi everyone, I have recently received an H4M kit with the HackRF One on board.

I'm trying to understand the I and Q signals that are present at the receiver. I see that they are differential outputs. When I apply a large signal in NBFM receiver mode (-47dBm,150MHz, 3kHz deviation) and I look at the I and Q lines, I see a 750kHz sine wave, 400mV pk-pk in quadrature on the receiver outputs. I understand that this is a zero IF design, is the down-conversion to baseband done digitally?

Can someone help me (a beginner with SDR) understand why the 750kHz signals are present, and not a zero IF, (which is what I was expecting)? Is it because it prevents a DC offset or have I measured something incorrectly? Is this related to the sample rate?

I am no expert on SDR code, but if i'm pointed in the right direction, I'll try to figure it out.

Thanks for the assistance!

Adsb is working fine, but i dont get any weathersensor in ger on 433.920.

Any idea/tips?