- osmocom-analog - lists.osmocom.org

Conquer the Infinite Descent: Is Slope the Ultimate Test of Your Reflexes?
by improved.emu.tvmt＠protectsmail.net 17 Jan '26

17 Jan '26

Hey there, fellow gamers! Are you ready to test your skills, push your reflexes to the absolute limit, and maybe even scream a little (or a lot) in frustration? If so, then you absolutely NEED to know about Slope, the ridiculously addictive and deceptively simple game that’s been quietly captivating players for years. Forget complex storylines and sprawling open worlds for a minute. Slope throws you right into the action with a single, exhilarating objective: survive the endless descent. Sounds easy, right? Trust me, it's anything but. So, grab your favorite gaming beverage, settle in, and let's dive into the world of Slope! We'll explore what makes this game so captivating, how to play, some sneaky tips to improve your score, and ultimately, whether it's worth adding to your ever-growing list of must-play games. 1. What Exactly Is Slope? The Lowdown on This High-Speed Challenge Slope, developed by Rob Kay and released in 2014, is a simple yet incredibly engaging endless runner game. You control a ball rolling down an increasingly steep and challenging slope. Your mission? To avoid falling off the edges and smashing into the red blocks scattered throughout the course. The beauty of Slope lies in its minimalist design. The stark, neon-lit graphics, coupled with the pulsating electronic soundtrack, create a hypnotic and immersive experience. It's a game that's easy to pick up but incredibly difficult to master, offering a constant stream of adrenaline-pumping challenges. Think of it as a futuristic, neon-infused version of a classic downhill ski race, only instead of skis, you're a ball, and instead of snow, you're navigating a treacherous, ever-changing landscape of platforms and obstacles. Website: https://slopefree.org 2. How to Play Slope: A Beginner's Guide to Endless Freefall Okay, so you're intrigued. Let's get down to brass tacks – how do you actually play this thing? Thankfully, the controls are incredibly intuitive: Desktop/Laptop: Use the left and right arrow keys to steer the ball. Alternatively, you can use the 'A' and 'D' keys for the same effect. Mobile Devices: Tilt your device left and right to control the ball's movement. That's it! Sounds simple, right? Here's the catch: Speed: The ball accelerates as you descend, making it increasingly difficult to react to upcoming obstacles. Obstacles: Red blocks are your nemesis. Touching them results in instant game over. Gaps: You'll encounter gaps in the platforms that require precise maneuvering to avoid falling into the abyss. Dynamic Environment: The course is constantly changing, throwing new challenges and obstacles your way as you progress. The game continues until you inevitably crash (and you will crash... a lot). Your score is determined by the distance you travel before meeting your demise. 3. Pro Tips and Tricks: Mastering the Art of the Descent Ready to go from a Slope newbie to a seasoned pro? Here are some essential tips and tricks to help you dominate the game: Focus on Smooth Movements: Avoid jerky or sudden movements. Smooth, controlled steering is key to maintaining your balance and navigating tight turns. Anticipate Obstacles: Scan ahead and try to anticipate upcoming obstacles. This will give you more time to react and adjust your trajectory. Use the Entire Platform: Don't be afraid to use the edges of the platforms to your advantage. You can often "cut" corners by steering close to the edge, allowing you to maintain speed and avoid obstacles. Practice Makes Perfect: This might sound cliché, but it's absolutely true. The more you play, the better you'll become at anticipating obstacles and controlling the ball. Learn the Patterns (Sort Of): While the course is dynamically generated, certain patterns and obstacle combinations tend to repeat. Pay attention to these patterns and learn how to navigate them effectively. Don't Be Afraid to Slow Down (Sometimes): While speed is important, sometimes it's better to slow down slightly to avoid a particularly tricky obstacle. Listen to the Music: The pulsating soundtrack can actually help you anticipate changes in the course. Pay attention to the rhythm and use it as a cue to prepare for upcoming challenges. Take Breaks: Slope can be incredibly frustrating at times. If you're feeling overwhelmed, take a break and come back to it later with a fresh perspective. Embrace the Failures: Crashing is part of the learning process. Don't get discouraged by setbacks. Learn from your mistakes and keep practicing. Find Your Rhythm: Everyone has their own unique style of play. Experiment with different techniques and find what works best for you. 4. Ready to Take the Plunge? Your Call to Action! So, what are you waiting for? Head over to Slope and start playing! Challenge your friends, beat your own high score, and see how far you can descend into the neon abyss. Let us know in the comments below what your high score is! We want to know if you are having fun, or if you have any new strategy for playing the game! Website: https://slopefree.org

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Unleash Your Inner Drift King: A Deep Dive into Drift Hunters
by improved.emu.tvmt＠protectsmail.net 17 Jan '26

17 Jan '26

Are you ready to ditch the boring straight lines and embrace the sideways life? Do you dream of tire smoke filling the air as you master the art of drifting? Then buckle up, petrolheads, because we’re about to dive headfirst into the exhilarating world of Drift Hunters! This isn't just another racing game; it's a meticulously crafted ode to the art of drifting, offering a pure, unadulterated experience for both seasoned drift veterans and curious newcomers. So, grab your virtual driving gloves, and let's explore everything Drift Hunters has to offer! 1. What is Drift Hunters? Drift Hunters is a free-to-play, browser-based drifting game developed by Drift Hunters. Since its initial release, it has become a sensation among online gaming communities for its realistic physics, customizable cars, and addictive gameplay. The game focuses solely on the art of drifting, stripping away unnecessary complexities and delivering a pure, unadulterated slide-fest. Forget about lap times and finishing positions; in Drift Hunters, it’s all about style, control, and maximizing your drift score. 2. How to Play Drift Hunters Ready to unleash your inner drift king? Here's a step-by-step guide to getting started with Drift Hunters: Website: https://drifthunters3d.io Access the Game: Since Drift Hunters is a browser-based game, you don't need to download or install anything. Simply head over to Drift Hunters in your web browser. Choose Your Ride: You'll start with a limited amount of in-game currency. Use this to purchase your first drift car. Consider the car's stats and handling characteristics, as each vehicle behaves differently. Hit the Track: Select one of the available tracks. Each track offers a unique layout and challenges, so experiment to find your favorites. Master the Controls: Familiarize yourself with the controls: Arrow Keys/WASD: Steering, acceleration, and braking. Spacebar: Handbrake – essential for initiating and controlling drifts. Shift: Gear up. Ctrl: Gear down. C: Change camera view. Drift Like a Pro: Enter corners at speed, use the handbrake to initiate a drift, and then modulate the throttle and steering to maintain your angle and control. The longer and more stylish your drifts, the higher your score. Earn and Upgrade: As you drift, you'll earn in-game currency. Use this money to upgrade your car's performance (engine, turbo, weight reduction) or purchase new, more powerful vehicles. Customize Your Ride: Express your personal style by customizing your car's appearance. Change the paint color, rims, and even add visual enhancements like spoilers and body kits. 3. Pro Tips for Dominating the Drift Scene Ready to take your drifting skills to the next level? Here are some essential tips and tricks to help you become a Drift Hunters master: Practice Makes Perfect: Drifting is a skill that requires practice and patience. Don't get discouraged if you don't nail it right away. Keep practicing, experimenting with different techniques, and you'll eventually get the hang of it. Master the Handbrake: The handbrake is your best friend when it comes to initiating and controlling drifts. Use it judiciously to break traction and send your car sideways. Clutch Kicking: This technique involves briefly disengaging the clutch (not directly simulated in the game, but emulated by quickly tapping the brakes) to upset the car's balance and initiate a drift. It's a more advanced technique, but it can be very effective. Throttle Control is Key: Maintaining the right amount of throttle is crucial for controlling your drift. Too much throttle, and you'll spin out. Too little throttle, and you'll lose your drift. Find the sweet spot and modulate the throttle accordingly. Counter-Steering is Essential: As your car begins to drift, you'll need to counter-steer to maintain control. This means turning the steering wheel in the opposite direction of the turn. Use Your Environment: Pay attention to the track layout and use the environment to your advantage. Clipping points (getting close to the inside of a corner) will earn you bonus points. Experiment with Different Cars: Each car in Drift Hunters has its own unique handling characteristics. Experiment with different cars to find the one that best suits your driving style. Don't Be Afraid to Experiment with Tuning: Don't be afraid to experiment with different tuning settings. There's no one-size-fits-all solution. Find the settings that work best for you and your car. Watch Replays: Analyzing your replays can help you identify areas where you can improve your driving. Have Fun! At the end of the day, Drift Hunters is a game. Relax, have fun, and enjoy the thrill of sliding sideways. 4. Ready to Slide? Your Call to Action So, what are you waiting for? Head over to Drift Hunters and unleash your inner drift king! Experiment with different cars, tracks, and customization options to find your perfect drift setup. And don't forget to share your best drifts and car customizations in the comments below! We want to see what you've got! Happy drifting, everyone! Let the tire smoke billow! Website: https://drifthunters3d.io

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What is Snow Rider 3D? A Blizzard of Fun!
by improved.emu.tvmt＠protectsmail.net 16 Jan '26

16 Jan '26

Snow Rider 3D is a free-to-play online game developed by Unity Technologies, released in 2021. Don't let the simple graphics fool you; this game packs a serious punch in terms of gameplay and replayability. The core concept is straightforward: navigate a downhill course on skis or a snowboard, avoiding obstacles, collecting coins, and performing tricks to earn points. But beneath the surface lies a surprisingly deep and rewarding experience that keeps players coming back for more. https://snowrider3dfree.com

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AMPS: Using one radio for TX, other for RX
by tangamugrosa＠gmail.com 05 Jan '26

05 Jan '26

Greetings group members Given the huge price of the Lime SDR, I was trying to find alternative methods for setting up an AMPS test rig. I found this command that operated half of the time rx and half tx, but it was of no use. At one point I saw "Signal received" on the console but it did not show further signs of life. My questions are, please: - Is there any future with this approach? - if nor, woukd be possible to use the hackrf to transmit, and a RTL-SDR to receive? Thank you very much test@test-ThinkPad-T470:~$ SOAPY_SDR_LOG_LEVEL=DEBUG sudo amps -v 1 -k 313 -F yes --sdr-soapy --sdr-device-args "driver=hackrf" --sdr-samplerate 5000000 -s 200000 --sdr-tx-gain 15 --sdr-rx-gain 0 -S sid=1 --sdr-timestamps 0 --sdr-lo-offset 0 And the output; DOPTIONS INFO options.c:128 Config file '/root/.osmocom/analog/amps.conf' seems not to exist, using command line options only. DOPTIONS INFO options.c:280 Command line option '-v' ('--verbose'), parameter '1' DOPTIONS INFO options.c:280 Command line option '-k' ('--kanal'), parameter '313' DOPTIONS INFO options.c:280 Command line option '-F' ('--flip-polarity'), parameter 'yes' DOPTIONS INFO options.c:296 Command line option '--sdr-soapy' DOPTIONS INFO options.c:294 Command line option '--sdr-device-args', parameter 'driver=hackrf' DOPTIONS INFO options.c:294 Command line option '--sdr-samplerate', parameter '5000000' DOPTIONS INFO options.c:280 Command line option '-s' ('--samplerate'), parameter '200000' DOPTIONS INFO options.c:294 Command line option '--sdr-tx-gain', parameter '15' DOPTIONS INFO options.c:294 Command line option '--sdr-rx-gain', parameter '0' DOPTIONS INFO options.c:280 Command line option '-S' ('--sysinfo'), parameter 'sid=1' DOPTIONS INFO options.c:294 Command line option '--sdr-timestamps', parameter '0' DOPTIONS INFO options.c:294 Command line option '--sdr-lo-offset', parameter '0' Selected System ID (SID) 1 belongs to: Chicago, IL (Cellular One) DDSP DEBUG dsp.c:150 Generating sine table for SAT signal. DAMPS NOTICE amps.c:583 You selected 'combined control & paging & voice channel'. This is a hack, but the only way to use control channel and voice channel on one transceiver. Some phones may reject this, but all my phones don't. DAMPS DEBUG amps.c:597 Creating 'AMPS' instance for channel = 313 of band A (sample rate 200000). DSENDER DEBUG sender.c:77 (chan 313) Creating 'Sender' instance DJITTER INFO jitter.c:129 (313) Reset jitter buffer. DJITTER INFO jitter.c:113 (313) Created jitter buffer. (samperate=8000, target_window=60ms, max_window=1000ms, flag:latency=true flag:repeat=true) DJITTER INFO jitter.c:129 (313) Reset jitter buffer. DJITTER INFO jitter.c:113 (313) Created jitter buffer. (samperate=200000, target_window=60ms, max_window=1000ms, flag:latency=true flag:repeat=true) DDSP DEBUG dsp.c:202 (chan 313) Init DSP for transceiver. DSENDER DEBUG sender.c:308 (chan 313) Maximum deviation: 8.0 kHz, Maximum modulation: 10.0 kHz DSENDER DEBUG sender.c:309 (chan 313) Deviation at speech level: 2.9 kHz DDSP DEBUG dsp.c:218 Use 20.0000 samples for full bit duration @ 200000. DDSP DEBUG dsp.c:234 Bit window length: 20 DDSP DEBUG dsp.c:235 -> Samples in window to analyse level left of edge: 5..9 DDSP DEBUG dsp.c:236 -> Samples in window to analyse level right of edge: 10..14 DDSP DEBUG dsp.c:175 Generating smooth ramp table. DDSP DEBUG dsp.c:259 Sat detection interval is 66 ms. DDSP DEBUG dsp.c:927 (chan 313) SAT detector reset: Initial state. DAMPS DEBUG amps.c:399 (chan 313) State change: (NULL) -> IDLE DAMPS INFO amps.c:685 (chan 313) Entering IDLE state, sending Overhead/Filler frames on combined control & paging & voice channel. DDSP DEBUG dsp.c:927 (chan 313) SAT detector reset: Change to FOCC. DDSP INFO dsp.c:944 (chan 313) Change mode to FOCC DDSP DEBUG dsp.c:967 (chan 313) Reset FSK frame transmitter, due to setting DSP mode. DAMPS NOTICE amps.c:638 Created channel #313 (System A) of type 'CC/PC/VC' = combined control & paging & voice channel Base station on channel 313 ready (combined control & paging & voice channel), please tune transmitter to 879.390 MHz and receiver to 834.390 MHz. (-45.000 MHz offset) DLCC DEBUG endpoint.c:1376 Creating new endpoint instance. DLCC DEBUG endpoint.c:1209 setting automatic remote peer selection DSDR DEBUG sdr.c:149 Open SDR device DSDR INFO sdr.c:168 Require bandwidth of each channel is 2 * (8.0 deviation + 10.0 modulation) = 36.0 KHz DSDR INFO sdr.c:307 We shift center frequency 18 KHz down (half bandwidth), to prevent channel from overlapping with DC level. DSDR INFO sdr.c:133 TX Spectrum: 1 ---------------------------------------+--------------------------------------- DSDR INFO sdr.c:135 Frequency 1 = 879.3900 MHz DSDR INFO sdr.c:357 Total bandwidth (two sidebands) for all TX Frequencies: 108000 Hz DSDR INFO sdr.c:365 Using center frequency: TX 879.354000 MHz DSDR DEBUG sdr.c:370 Frequency #0: TX offset: 0.036000 MHz DSDR INFO sdr.c:391 Using gain: TX 15.0 dB DSDR INFO sdr.c:433 We shift center frequency 18 KHz down (half bandwidth), to prevent channel from overlapping with DC level. DSDR INFO sdr.c:133 RX Spectrum: 1 ---------------------------------------+--------------------------------------- DSDR INFO sdr.c:135 Frequency 1 = 834.3900 MHz DSDR INFO sdr.c:469 Total bandwidth (two sidebands) for all RX Frequencies: 108000 Hz DSDR INFO sdr.c:477 Using center frequency: RX 834.354000 MHz DSDR DEBUG sdr.c:482 Frequency #0: RX offset: 0.036000 MHz DSDR INFO sdr.c:492 Using gain: RX 0.0 dB DSDR INFO sdr.c:525 Using local oscillator offset: 0 Hz DSOAPY INFO soapy.c:109 Using device args "driver=hackrf" DSOAPY DEBUG soapy.c:83 SDR device args: key='driver' value='hackrf' DSOAPY INFO soapy.c:113 Using stream args "" DSOAPY INFO soapy.c:117 Using tune args "" [INFO] Opening HackRF One #0 16bc62dc2e8526a7... DSOAPY DEBUG soapy.c:176 We have 1 RX channel, selecting channel #0 DSOAPY DEBUG soapy.c:305 We have 1 TX channel, selecting channel #0

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SDR reccomendation
by nishackle＠gmail.com 24 Dec '25

24 Dec '25

Hi All, I hate reaching out like this, but I'm at the limit of my knowledge. I've got some AMPS handsets i'd like to make use of-back to my PBX if possible. The problem is, i've not been able to get AMPS to work with any of the SDR's I have. I have a HackRF, A URAN1 and a Pluto. I can open the URAN as a USRP device with the following: amps --sdr-soapy \ --sdr-device-args "driver=uhd" \ --sdr-channel 0 \ --sdr-samplerate 1000000 \ --sdr-bandwidth 250000 \ --sdr-rx-gain 20 \ --sdr-tx-gain 30.0 \ -k 334 -T CC/PC/VC \ -k 336 -T VC \ -p -s 192000 -o --fast-math Which appears to work, but the radio doesn't ever actually transmit, the SDR works, because I use it with OpenBTS to make a GSM station. I spent a $400 on a secondhand limeSDR mini, but that turned up broken in the post. Is there an easily obtainable SDR that anyone else has got working? Thanks, Nick

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Help with cable connection from the phone to the SDR.
by George 18 Dec '25

18 Dec '25

Hello, I have been wanting to build a TACS base station with Osmocom analog for a while now, and have decided finally to do it! To avoid regulations, I would like to do it over a cabled connection from the phone to the SDR. I have read that some form of load or attenuators are needed to stop the phone and SDR frying themselves. Unfortunately I have little knowledge on this subject, so I wondered if anyone here can tell be what sort of load I need. Any help would be greatly appreciated

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Osmocom analog RX overflow
by plaskg.90＠gmail.com 27 Nov '25

27 Nov '25

Hello all, I have finally given my wired 1g base station setup a try, and it works! (Sort of) To start with, I got these two message spammed on my screen: DSDR ERROR sdr.c:985 SDR RX overflow! And: DSOAPY ERROR soapy.c:573 SDR TX underrun, seems we are too slow. Use lower SDR sample rate. After a while of tinkering, I managed to get the Sample rate down to 96000, this works a lot better (the phone can now connect (sometimes) and receive/place calls). I can’t seem to get either the audio sample rate or the SDR sample rate any lower. (Although I am still very new to RF and probably missed something!) There are still problems, as I am still getting these 2 errors quite frequently and it causes the phone to not connect properly. My setup is: Windows 11 computer running Ubuntu in an emulator with usb pass though (would running it natively be better as the pass through doesn’t work very well?) LimeSDR mini 2.0 Motorola 4800x The terminal command is: tacs -k 23 -k 24 —limesdr-mini -P 6 -s 96000 —sdr-samplerate 96000 Any help at all much appreciated.

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Can someone mind checking over my 1g base station?
by plaskg.90＠gmail.com 14 Nov '25

14 Nov '25

Hello all, With the help of Harald I have been able to construct a wired base station for the TACS network! I wondered if someone here can check over what I have so far done, to see if I have made any mistakes (which is quite likely!). Manly, I have used some 2w attenuators in the system between the phone and the splitter/combiner and I am worried that the phones I have will transmit at a higher power (I have a Motorola 4800x, Motorola independent (DynaTAC) and a Vodafone VT1) and burn out the attenuators (which would severely damage the transmitter on the phone). I will be happy to send anyone photos of my setup (I don’t believe I can attach them here). Again, I am still quite new to RF in general, so help much appreciated. :)

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Re: LimeSDR Mini 2.0
by Mario García-Oliva 25 May '25

25 May '25

Hey. Did you manage to try out Osmocom-Analog with the LimeSDR 2? Had any issues with it?

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LimeSDR Mini 2.0
by MKS 31 Dec '24

31 Dec '24

Hello, are there any known issues in using the LimeSDR Mini 2.0? I see that the original LimeSDR Mini is supported - there is published documentation on using osmocom-analog with it. Can I follow the same installation procedures using the LimeSDR Mini 2.0 as shown for the LimeSDR Mini? Thanks

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