Geocomms

A short preview of clips from the Ridge Racer competition put on by Delta 34 in Ohio. This was probably the funnest and most intense shooting competition that I’ve done. More to come! @MandoWisco @BrandonGramer @HavocTwoOne @ParkerGeurin @blak661 @that_jon_guy

@GLogistician @PMAP1776 Who wants to do some helmet penetration testing on this style of shit.

@PMAP1776 this threat is terrifying and ZERO explosives were needed. Also goes to show you why a helmet might be a good idea.

@BePrepared72 @chiefofautism @4nt1p4tt3rn lol. That is far beyond my meager abilities. Learing fpv drones has been frustrating enough lol.

@chiefofautism New project for you @4nt1p4tt3rn or @Geocomms167640

someone built an OPENSOURCE MILITARY RADAR that tracks multiple targets up to 20km away its called AERIS-10, full github repo schematics, PCB layouts, FPGA code, python GUI, everything under MIT license commercial phased array radar starts at $250,000. military surplus is $10,000-50,000 but its decades old analog junk with no electronic beam steering this does electronic beam steering at 10.5GHz, pulse compression, doppler processing, multi-target tracking on a real time map two versions: 3km range with patch antenna array, 20km range with 32x16 slotted waveguide array and GaN AMPLIFIERS custom frequency synthesizer, 16 front-end chips, FPGA doing all signal processing, GPS and IMU for ACCURATE target coordinates when the platform moves all gerber files included so you can order the PCBs and build it yourself one person built what defense contractors charge a quarter MILLION for and open sourced it

@thajakest My goal is build out a 10” long range drone.

I gotta say learning fpv drone stuff is like drinking from a fire hose. Super steep learning curve on the entire thing, the flying side, hardware (building) and software (programming) side. But gotta keep learning and gotta keep improving.

@thajakest Yeah BabyApe v3. Still trying to decide on goggles.

@Geocomms167640 Baby ape?

@FatherAbr I’ve been running atak offline on a WiFi only tablet for this purpose. It’s the only mapping app I’ve found that handles LiDAR geotiffs well. I’ll take a look at some of these others as well. Thanks!

I know paper maps will always be the backup but you want to leverage tech as much as possible. Here are some UKR companies/software tools you might want to do a deeper dive on when it comes to running digital maps. GIS Arta: Artillery targeting/fire coordination gisarta.org/en/ Delta — Situational awareness & battlefield management (strategic/operational level) csis.org/analysis/does-… Kropyva — Tactical offline mapping for infantry/artillery (squad/platoon level) armysos.com.ua/defense-mappin… Take closer look at Kropyva. You don't have to build an android app, basically all the digital tools are already COTS available. You just need to put the pieces together. Android Tablet (wifi only GPS enabled) Mapping software Case for the tablet (pouch is fine)

@Ursa_Theodorus We had a medivac channel setup. To call in the stretcher to haul the wounded to the respawn point. This coming weekend we are doing a TCCC basics class.

@Geocomms167640 Medivac, you say?!

Everyone wants to be trigger pullers but yall need to get trained up on comms, sigint and drones as well. During a recent FTX I was RTO/sigint for a platoon sized element. Using the tinysa ultra and quansheng uvk5 I was able to intercept, and identify opfor comms and leverage them. All the while running bluefor comms as cross band to mitigate enemy sigint and monitor the medivac channel on the Radtel 880 since it can monitor 3 freqs at once. Get out there and train. Learn comms, sigint, drones, FRTs, DMR and other force multiplying skills and techs.

@Totherepublic25 @Brushbeater 100% buy his books. I reference them often.

@Geocomms167640 @Brushbeater and buy this guys books 🫵🏽📡

@DrKrisEdward @WeaponOutfitter I still think fiber optic drones represent a small % of total drones. But I’m not a good source for that info. Mesh can still be DFed but I’ve yet to get something like a kraken sdr to see how east it is to hone in on one mesh transmitter.

Oh interesting. From what I've seen both sides in Ukraine have apparently been utilizing rapid DF tech, hence the ubiquitous use of fiber optic for drone guidance. Neither side in Ukraine seems to have the ability to RF locate a human being, but the radio chatter that humans generate is reportedly an easy way to attract an artillery shell. I'm not sure that the encrypted mesh systems will be defensible against these DF techniques since I'd guess anything that emits RF is findable even with advanced frequency hopping. But I'd love to hear an educated opinion on this.

@DrKrisEdward @WeaponOutfitter Yes very much so. What I’ve followed of Ukraine seems to be far more complicated as forward drone teams seem to be able to operate without being DFed but that may be a lack of Russian capability. But not a lack of US capabilities.

@Geocomms167640 @WeaponOutfitter Oh! Oh well of course. What I'm saying is, be aware of the actual capabilities on the field. Absolutely need to be competent on the ground with whatever comms tech is available to use.

I can be a rifleman or DMR but so can the 30 other guys at the FTX. Guess what I was the only guy of 30 that was spun up on comms and sigint so I was priortized to be with the platoon as RTO and sigint as no one else could. But you get that. We need more rtos. 1 in 30 is not a good ratio.

@OutlanderSystem @Geocomms167640 When you fuck up your knee, OR you are too valuable/worthless, do you end up in a TOC? The valuable people then have to babysit the people sniffing glue.

@DrKrisEdward @WeaponOutfitter What I’m saying is don’t let possible capabilities of the gov stop you from getting out and training the basics.

@Geocomms167640 @WeaponOutfitter I've never seen any doomer porn describe the situation as I just described it here. There's a lot of doomer porn out there but that isn't where this comes from.

@prescott I studied for about 15 min a night for a month and passed my tech and general license in one sitting. I used free apps to study for it. However I will say I messed with SDRs and gmrs and murs and cb and such for about 3 years or so before I started to study.

@Geocomms167640 How long do you think it takes the average young American to study for a HAM license?

@DrKrisEdward @WeaponOutfitter If that’s the case then they are tracking everyone. Stop consuming the doomer porn.

@Geocomms167640 @WeaponOutfitter Meanwhile opfor is tracking you from 40,000 feet by the electromagnetic shape of your heartbeat moving through EMF fields.

@OutlanderSystem Gotta be able to do both.

@Geocomms167640 Everyone is an assaulter. I just want to be the guy topping off batteries, brewing coffee and playing X-Box in the TOC.

@radiomadeeasy @wyomingsurvival It’s awesome that you do that. But I also like programming them to learn. And I make my own encryption keys and such. I’ll be pulling most of it from my btech 6x2 code plug.

@Geocomms167640 @wyomingsurvival If you had bought it from us it would have been set up properly, tested, and programmed 😂 glad you got it sorted!

So got the new btech DA 7x2. I’ve done the firmware update and unlocked it out of ham mode. But it seems to have a broken menu? Most of the menu is not there and even the keys that should be pre programmed are not/wont take the programming. ie the p2 key should switch between channel mode and memory mode and it won’t. The 6x2 pro never did this so I don’t think I’m missing something in the cps. Any help? @wyomingsurvival @radiomadeeasy @Brushbeater

@OGridPete Are you swapping antennas on the array to target specific signals or does it use something more like a wide band scanner style antenna. I want to get a kraken sdr sometime this year hopefully.

The accuracy of obtaining a LOB from a fixed position using the KrakenSDR has proven to be quite good, typically within 8 degrees under favorable conditions. That's a good enough level of precision for effective direction finding, especially when multipath interference is minimal and the antenna array is properly configured. Combining bearings from multiple locations while driving substantially improves overall geolocation accuracy and typically pinpoints the location fairly quickly. Regarding Meshtastic nodes, I have not yet attempted to locate one. However there are no fundamental technical barriers to direction finding one of these devices with the KrakenSDR. Meshtastic operates primarily in at 915 MHz (in the U.S.), using low-power, intermittent LoRa transmissions. I’ll have to try locating one in the future, but will need to construct a 915 MHz dipole antenna set first.

Just tracked a randomly selected transmitter using the Kraken SDR, and it only took about 10 minutes of driving. This is classic “fox hunting” in the amateur radio community: a longstanding direction-finding sport that pits operators against each other in locating hidden signals. Yet beyond the fun, it delivers a sobering real-world demonstration of how rapidly any transmitting station can be located the moment it keys up. The Kraken SDR achieves this with a compact circular array of five evenly spaced dipole antennas connected to fully phase-coherent receivers. All five channels share a common high-precision clock source and run continuous calibration to maintain synchronization. As the incoming RF wavefront reaches each antenna at microscopically different instants, the system measures the resulting time-of-arrival differences (equivalent to phase shifts across the array). Using advanced correlative interferometry and the known physical geometry of the antenna placement, it computes the precise direction of arrival (bearing) in real time and overlays it directly on an interactive map. Mitigation techniques are essential if you wish to minimize your detectable footprint: transmit at the absolute lowest effective power required, limit yourself to extremely short bursts, employ directional antennas carefully oriented away from potential listeners, implement frequency agility or hopping patterns where feasible, and, when operational security demands it, maintain complete radio silence. In today’s environment, understanding and managing your RF signature is no longer optional.