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Module 17 Usage 3 #poll-notice
A new poll has been created: Module17 is an adapter for (typically, mobile) radios with a flat audio (data, or 9600) input. It's open source and the primary source for one that is assembled and tested is LILYGO - https://lilygo.cc/products/module17-revision-0-1e. But two problems with that unit: * The version LILYGO (had been) shipping is Rev. 0.1e, and the current hardware design is Rev. 1.0 (lots of fixes and updates). * LILYGO shows that Module17-Revision 0.1e is out of stock. Thus I'd like to do a poll about the use and interest of Module 17. Your answers would help out a lot. I will close this poll approximately Monday 2025-03-17. (Apologies - this is the first time I've conducted a poll on 开云体育, so I'm fumbling my way through it.) Multiple choices are allowed, and I've set this poll not to display who has responded to the poll. Steve Stroh N8GNJ 1. I am interested in Module17 to operate M17 mode with a mobile radio that has flat audio inputs. 2. I've already purchased a Module17. 3. I'm waiting to purchase a Module17 when Rev. 1.0 is available for purchase. 4. I'm willing to pay more for Module17 if I can get a Rev. 1.0 from a source other than LILYGO. Click Here To Vote Do not reply to this message to vote in the poll. You can vote in polls only through the group's website.
Started by Steve Stroh N8GNJ @ · Most recent @
M17 Conference 2025 in Poland
M17 Conference 2025 in Poland, September 6-7 (Sat-Sun) The M17 Foundation is pleased to inform that the M17 Conference 2025 will take place on 6-7 September, in Nowy Dwór Mazowiecki, Poland. The main topic will be open-source software and hardware development in the amateur radio realm, with the emphasis on M17 and all the solutions around it. Any topic that might be interesting to the ham radio community is welcomed! The venue is located very conveniently, just 40km from Warsaw, and a stone's throw from the Warsaw-Modlin airport. The event will be a combination of technical talk sessions and exhibitions. Admission is free. Speakers and exhibitors are required to register. The registration form is available through the link below. More info: https://m17foundation.org/m17-conference-2025 Wojciech Kaczmarski, SP5WWP M17 Foundation
Started by Wojciech Kaczmarski @
Presentation and request. 10
Hello. Thank you very much for allowing me to join this group My nick is ANgazu and my hobby is signal analysis. I am looking for recordings of the M17 mode (signal on the air) for analysis to publish results in a forum and a radio amateur magazine (in Spanish). If someone would be kind enough to record the signal (preferably several minutes of conversation with another correspondent) using an SDR either in RF or in baseband (USB) in IQ or real format and uncompressed wav, I would appreciate it. Thank you very much. Best regards. ANgazu.
Started by Angel Perez @ · Most recent @
Encryption/Authentication 2
Are there any existing M17 implementations which implement either AES encryption or ECDSA signatures? Kind Regards, Rob Riggs WX9O Mobilinkd LLC
Started by Rob Riggs @ · Most recent @
A challenge - document M17 data use 4
Apologies for being missing on this list. I’ve been keeping an eye on it, and eagerly read any postings. The subscriber count has grown to 158, with 40 distinct topics discussed, since its creation on 2024-05-31. I decided to promote, encourage, evangelize M17 in Zero Retries, and create this list, because I discovered that “all the pieces were in place” for M17 to be a viable alternative to DMR, D-Star, System Fusion, and others. Thanks to the very hard work of Wojciech Kaczmarski SP5WWP and others, M17 is no longer an experiment, but a usable system. (To be clear, I’m not positing that M17 is now static and done - there’s still ample experimentation and evolution possible, and hoped for.) Those pieces included MMDVM supporting M17 as “just another digital voice mode” enabling repeaters (that have incorporated an MMDVM) to provide M17 service, M17 “modems”, the Mobilinkd TNC3 and TNC4, modifications for radios developed by OpenRTX, and most recently, the Connect Systems CS7000 M17 and CS7000 M17 PLUS portable radios. Other M17 “pieces” are referenced in the (new to me) M17 (amateur radio) Wikipedia article - https://en.wikipedia.org/wiki/M17_(amateur_radio). (Kudos if the author of that is on this list.) I had a secondary, but strong reason for reason to promote, encourage, evangelize M17 in Zero Retries. M17 was the first digital voice mode in use for Amateur Radio that (as best I understand it) incorporated data as co-equal to digital voice. As in, you can transmit data as easily as digital voice, and data transmissions would be handled through all M17 infrastructure, especially repeaters. It’s still queued up for me to document the “dirty details” of how poorly data is accommodated in DMR, D-Star, System Fusion, and P25… “data capability” is present in all of those, but it’s so poorly implemented as to be impractical for actual use in Amateur Radio. Here’s MY problem with data in M17… I have no idea HOW to actually use the data capability of M17. I haven’t (to date) seen a “Using Data on M17 for Dummies” guide. I should, and have had on my to do list for a while, buy a TNC4 and learn how the TNC4 handles data over M17. Candidly, I have my (writing and research) “hands” full at the moment with various high priority projects in Zero Retries to dive into this and learn the details and document them myself. Not to mention a bit of support to M17 behind the scenes. So… the challenge you “M17 USERS"… could one of you experts in using M17 (and there are a number of you on this list) dig out the details and write up exactly, in detail, how one uses data on M17? PLEASE don’t be intimidated by the need to “write a formal paper” or an article or any of such extraneous issue. What’s needed is the detailed information about how to use data on M17. If someone is able to explain / document it, I can clean it up and publish it with full credit to the author(s). This writeup isn’t intended solely for Zero Retries - I think it’s a critical piece of info for promoting M17, and so it will be reformatted into a standalone article for posting to the M17 Project website. Why does this matter? Because with the success with the CS7000 M17 and CS7000 M17 PLUS (they’re selling…), I’ll guess that we’re about to see more radios coming out with “from the factory” support for M17. But the CS7000 M17 and M17 PLUS only implemented M17 voice - not data (as far as I have seen from their marketing material). If we don’t popularize M17’s data capability, and SOON, then the ability to use data in those new radios won’t be enabled. I hope that eventually using data on M17 will be as simple as connecting a USB cable or connecting via Bluetooth between a host computer (laptop, Raspberry Pi) and an M17 enabled radio and connect to the radio like a KISS TNC. Or something equally simple. The first radio to incorporate M17 voice + data will get the “full evangelism” treatment in Zero Retries that I gave the emergence of the CS7000 M17. My profound Thanks to those who accept my challenge. Steve N8GNJ --- Steve Stroh N8GNJ (he / him / his) Editor Zero Retries New
Started by Steve Stroh N8GNJ @ · Most recent @
MD-380 mods - new hardware revision?
One of our club members is trying to modify a pair of the MD-380 radios for the M17 mod but says that the current board layout doesn't match the one in the YouTube videos and that he can't locate one of the capacitors that's to be removed. Does anyone have any info on this issue? Thanks Jon WB2MNF
Started by jon@... @
On Reddit: M17 is my 2025 Resolution. Join me.
Saw this in the M17 group on Facebook: https://www.reddit.com/r/amateurradio/comments/1hrgcqb/m17_is_my_2025_resolution_join_me/?rdt=38135 Steve Stroh N8GNJ (he / him / his) Editor Zero Retries Newsletter - https://www.zeroretries.org Radios are Computers - With Antennas!
Started by Steve Stroh N8GNJ @
Remotely changing talk groups 5
Does anyone know if the following is possible on M17? If one uses DVSwitch, you can, via a cron job change the mode, talk group etc. I use the M17 Reflector and USRP-gateway. Anything similar??? Thank you and Happy Holidays!
Started by Wayne Spivak, KC2NJV @ · Most recent @
M17 Foundation
This development is very new: https://m17foundation.org I view this is a big step forward in the evolution of M17 into the “mainstream”. Thanks, Steve N8GNJ Steve Stroh N8GNJ (he / him / his) Editor Zero Retries Newsletter - https://www.zeroretries.org Radios are Computers - With Antennas!
Started by Steve Stroh N8GNJ @
CS7000 M17 PLUS Firmware Status
Since there’s no online (web) archive of these email notices from Connect Systems about the CS 7000 M17 and M17 PLUS radios, and this being the m17-users community, in the future I will be forwarding these to this email list, which does generate a “web page” that can be linked to. Thanks, Steve Stroh N8GNJ --- Steve Stroh N8GNJ (he / him / his) Editor Zero Retries Newsletter - https://www.zeroretries.org Radios are Computers - With Antennas! ---------- Forwarded message --------- From: Connect Systems Inc. <jerry-connectsystems.com@...> Date: Nov 22, 2024 at 13:17:19 Subject: CS7000 M17 PLUS Firmware Status Email from Connect Systems Inc. Summary of Status of Firmware The CS7000 M17 PLUS is now properly transmitting. Receive is intermittent and needs to be fixed. CS7000 M17 PLUS Firmware Status as of November 22 From developer (Silvano) (November 22) Hi Jerry, everything is up and running except for the M17 demodulation. For some reason I'm not fully understanding, the demodulator fails to lock on the incoming signal very often; however, once it locks, the demodulation is stable, you can hear the audio and the screen shows the correct stream information. The hardware part is good, I did both an eye diagram of the incoming baseband signal and demodulated it using a Module17: this worked immediately, the problem seems to be somewhere between the STM32H7 ADC and the code. The interesting fact is that the Module17 is running the same exact demodulator code of the CS7000-M17 Plus and it works. I'll keep you updated. Bye, Silvano. From developer (Silvano) (November 19) Hi Jerry, today I found and fixed the bug causing the missing M17 transmission on the CS7000-Plus. I'm still working to find the issue causing the missing RX: the baseband signal coming from the RF stage looks good, the problem seems to be in the firmware; tomorrow I'll make an eye diagram to see if everything is really ok. Bye, Silvano. Order the CS7000 M17 PLUS Now Connect Systems Inc. | 18022 Delano Street | Encino, CA 91316 US Unsubscribe | Update Profile | Constant Contact Data Notice
Started by Steve Stroh N8GNJ @
Squeaking sound 5
Hi Everyone, Just got into M17 project. M17 Module (rev. 0.1e) with mic/speaker Radioddity RS22, connected to FTM-500DE through an home made cable DB9 to Mini-DIN 10. So far, I was able to have two QSOs: 1) over hotspot, reflector M17-M17; and 2) RF, antenna to antenna. On both QSOs, I found the sound to be frequently squeaking / high pitch. Any audio setting that I'm missing on M17 module? Anyone with the same experience? Regards, Anaxi
Started by Anaxi @ · Most recent @
CS7000 M17 and CS7000 M17 PLUS Status
-- Steve Davidson K3FZT | GMRS: WRVS468 Winlink Gateway K3FZT-10@... direct or via W3EOC-3 Supporting VARA FM Wide/1200bd Packet WIRES-X Room #85218 "MARC-DARBY" 444.050 mHz K3FZT@... FN20ja ---------- Forwarded message --------- From: Connect Systems Inc. <jerry-connectsystems.com@...> Date: Tue, Oct 15, 2024 at 1:59 PM Subject: CS7000 M17 and CS7000 M17 PLUS Status To: CS7000 M17 and CS7000 M17 PLUS Status Summary and Implications of Status The CS7000 M17 final beta version is almost finished. You can load the latest from GitHub any time you wish. I will try to maintain a copy of the latest on my website. The CS7000 M17 PLUS hardware will be shipped to us sometime next week. We will ship soon after. The radio will ship with the DMR and Analog firmware but this version will not have the standard paging firmware that Amateurs do not normally use anyway. We will include the paging in a future version soon after the radio is shipped. The M17 firmware is about a month away for the M17 CS7000 PLUS. Hardware & FIrmware Status from CoValue (Manufacturer) Thanks for your new order! Do you need 2-tone/MDC/DTMF for CS7000 M17 PLUS? If no need this time, we could ship your 200 pcs PLUS early next week as the engineer has not finished those parts. Note: "Thanks for your new order" means I ordered accessories for the radio besides the radios themselves. I told him to ship the radios without the paging firmware. M17 FIrmware Status from Silvano (M17 software guru) Hello Jerry, I have to kindly ask to enhance your calm [1], thank you. You sent the previous email on Saturday 12/10: I don't have my phone connected to my email account and I rarely use the computer on the weekends. In any case I'd have sent you a status update in these days (the original plan was to do it yesterday). This said, the current situation is: - the breaking changes introduced in the codebase to support the CS7000 have been merged to master; - the code for the CS7000 BSP is now publicly available on the OpenRTX github repository in a dedicated branch [2]; - I plan to make a new tagged release in the immediate future, once the remaining major bugs on the CS7000 are solved (lagging UI when M17 voice is being reproduced); Regarding the CS7000 Plus, I already started working on the RTOS porting/BSP for the STM32H7 and, if everything goes well, I should be able to have a firmware image within a month. In the meantime, I'll send you intermediate firmware updates whenever I reach meaningful development points. Apart from the USB support, which will require bringing in the tinyusb library, the "hot spots" of the development work are the ADC and DAC driver: on the rest, I'm not expecting particular surprises. In the meantime there is some work ongoing on the OpenRTX-companion tool, which will allow to flash the firmware and do backup, restore and data management on the external flash. For the codeplug part, there is an RFC currently open on the OpenRTX website repository [3]: the plan is to close it soon and adapt the codeplug code to the new format as well as start mainlining the rtxlink implementation, that is the backend protocol used for memory and CPS management. Considering the overall development, I want to close the porting for the CS7000 Plus as soon as possible and then concentrate all the efforts in finishing the CPS part once and for all the platforms by the end of the year. The OpenRTX codeplug format comes both in binary and json format, which should facilitate the development of third-party tools for codeplug creation and editing. There is also some work ongoing at the qdmr project in order to support the OpenRTX codeplug format, but currently I don't know at which point the development is. Best regards, Silvano Seva. [1] https://http.cat/status/420 [2] https://github.com/OpenRTX/OpenRTX/tree/CS7000 [3] https://github.com/OpenRTX/openrtx.github.io/pull/32 Connect Systems Inc. | 18022 Delano Street | Encino, CA 91316 US
Started by Steve K3FZT @
CS-7000 M17 Plus
Hi, any update on the shipping status of the CS-7000 M17 Plus? should have been October 15th but apparently is further delayed… 55&73 Werner
Started by oe1wrs @
CS7000-M17 Questions 6
Hi, I received my CS7000 today and it's working fine, but I have questions. If I get answers here, I'll try and write them up and add them to the wiki. Not really a CS7000 question, but in my Pi-Star hotspot configuration there's an M17 Startup Host option. It defaulted to M17-672, which is listed as the Pi-Star Multi-Reflector (MW0MWZ). It seemed to work fine. I switched to M17-M17, which is closer to me and also works. Does this setting matter, and how should I choose? I followed the wiki instructions to set frequencies and callsign. I found this wiki PR (https://github.com/M17-Project/cs7000-wiki/pull/3/files) on how to set a destination, which I set to M17-M17 C. Perhaps someone can merge that PR to make the directions easier to find. I know about #ECHO. What does #ALL do? Is there any way to save frequency and destination settings to make it easier to switch between them? I see Banks, Channels and Contacts in the menu, but they don't seem to have anything behind them yet. Relatedly, is there any CPS software for the radio yet? I see issues in both the OpenRTX (https://github.com/OpenRTX/OpenRTX/issues/158) and qdmr (https://github.com/hmatuschek/qdmr/issues/251) Github projects that seem related. I know those last two are probably just functionality that hasn't been built yet, but I thought I'd ask in case I missed something. Thanks! Jim N1ADJ
Started by Jim Ancona N1ADJ @ · Most recent @
VHF? 14
This might be a bit of a silly question, but here goes: Are we allowed to do M17 on VHF? All of the radio examples I see on the M17 Project site are UHF, so I'm wondering if there are bandwidth or other issues that prevent the use on VHF? Thanks, -Dj
Started by Dj Merrill @ · Most recent @
Using a Maxon SD-125 on M17 7
All- Here are my notes and information to share regarding the Maxon (or sometimes sold under the name Midland) model SD-125 UHF data radio. It is a programmable unit, the U2 model covers 440-470mhz although it will program out of band and work down to ~ 430mhz if desired. My goal here is to show what I did to modify my unit for direct discriminator and modulator access to use as an amateur digital radio hotspot. These radios show up on ebay and other flea market sites. I tested the ones I have on several amateur digital modes.. Dstar, P25, NXDN and now M17. I have not tried DMR. I can confirm that the SD-125 works great for M17 use. The radio can be operated at 1 watt output or 5 watts output. However be aware that the unit was not built for lengthy continuous transmissions. I have found running it at 1 watt in stock form, even though it gets warm to the touch is still within what I would consider to be reasonable temperature limits and I have even let it transmit during hour long Dstar nets with no concern for overheating. Mounting a heat sink for additional cooling would be advantageous and make the radio look even more jazzy. For my own unit I bypassed the PA module entirely and use the VCO output buffer transistor at 10 milliwatts RF output. I find that it covers my ham shack with plenty of RF and the unit stays cool indefinitely. A brief radio programming mention, setting the radio for narrow band operation works best. The picture above shows where I removed the two wires from the edge connector (the arrows) and attached extension wires. The white wire (tx audio to the modulator) goes to pin 7. The red wire (rx audio from discriminator) goes to pin 10. DB9 pin 1 = modulator = edge connector pin 2 DB9 pin 2 = disc. = edge connector pin 5 A correction I would make if doing it over again would be to pick the DB9 connector pin 7 for modulator. It is a "no connection" pin. By removing pin 1's connection from the top board edge connector takes away the ability to program the unit. I can of course resolder the white wire back to the edge connector but that's a hassle and I didn't think that through. My bad. Fortunately I have no real need to re-program the unit again any time soon so I'm okay with this. When using pi-star or WPSD under mmdvmhost radio settings, TXInvert=1 and RXInvert=0. A final comment and I'll wrap this up. Because these radios were built some 20 years ago I'm finding that they're all way off frequency. Be sure and check the transmitters on the bench and align via the VCO trimmer in the metal can on the bottom board if necessary. 73- Steve KA4YMY
Started by Steve - KA4YMY @ · Most recent @
Show us your M17 setups/capabilities! 11
Tell us what you use to get on air (or just over the Internet) with M17. Photos are welcomed. I currently have: - DroidStar running on my smartphone. I used it mostly for the Friday's net (now it's called "activity day"). - Module 17 1.0 connected to a Yaesu FTM-6000 (UHF). - ZUM Spot RPi v0.6 with WPSD. - DigiRig with M17-texting app running on my PC to send short text messages over RF (m17-tools offer voice mode support instead). - CS760 (CS7000-M17 prototype) handheld running OpenRTX. - Gameboy Advance running a custom ROM, generating baseband of the M17 packet mode. - Various SDRs running with M17 GNU Radio blocks (gr-m17).
Started by Wojciech Kaczmarski @ · Most recent @
College Campus M17 Repeater Ideas 6
Hello all: Up front, I will not be “leading” or organizing this project (if it gains any momentum). I tend to be lousy at that in general, and at the moment I don’t have the bandwidth to do so. I’m hoping this can be “crowd” project here, and once all of the elements have been identified, maybe then I can come in and do a consolidation writeup. I’m guessing that enough of the pieces are out there (that I don’t know about) that it’s largely a light integration project of figuring out how to put all of the existing pieces together. In Zero Retries 0165, I said: (https://www.zeroretries.org/i/147534885/a-better-analogy-from-a-genxer-m-and-linux) I can easily imagine setting up localized M17 repeaters that cover perhaps a college campus, that will probably get more use with data / messaging than digital voice. How to set up such an M17 repeater will be a big focus of the M17 book that I’m working on. I should have added in that mention that one mental model for this idea is that I’m absolutely confident that there a lot of students showing up on campus that will be using Meshtastic… and that it will grow very quickly if one person in a dorm is doing it and shows others how easy and inexpensive it is to get going. Why focus on M17? I think there’s a good story that can be told to students about the virtues of M17 in large part because it’s open source, it’s hackable, and there’s now a large enough ecosystem of options for accessing M17 on RF for those that want to experiment, for example doing their own mods on inexpensive radios such as what OpenRTX is doing - https://openrtx.org/#/?id=the-openrtx-project. One of the touchstones of what resonates* with students about Amateur Radio was this informative talk at DCC 2018 - Maintaining Student Interest in Amateur Radio by Skyler Fennell KG0SKY - https://youtu.be/LWN7dnzGRZ4?si=iHMd7GlD9yGaa6eI. He describes with some enthusiasm the use of DMR because the radios are cheap. One example is that there is no Amateur Radio club (there used to be) Western Washington University (WWU) - https://www.wwu.edu here in Bellingham Washington. There used to be, and perhaps a project like this might serve to rekindle some interest in Amateur Radio. WWU is an example of a small campus, small student body. But it should be able to scale to something bigger like this potential site for such a repeater is this from my time living near the Ohio State University campus - https://housing.osu.edu/roomsearch/morrill-tower. One of the things KG0SKY said was that whatever a student wants to get involved with, it has to be cheap, Cheap, and CHEAP! So… as much as I love the Connect Systems CS7000 M17, a $300 portable radio for a college student to use isn’t going to pass the “cheap, Cheap, CHEAP” test for large numbers of students getting involved in M17 over radio. Some additional points to potentially support this idea: The Open Source nature of this should play well not just with the students, but with the faculty. The local M17 system could be incorporated into EE curriculum. The local M17 system might even be able to be a project of the campus chapter of IEEE for students, which (perhaps some deeper pockets among the local IEEE community to help finance it) and it would be a great IEEE project. While this project shouldn’t depend on the CS7000 M17 @ $300, it shouldn’t preclude it either for those students that want one and consider it a reasonable purchase. So, here is the challenge to the M17 brain trust assembled here. To create interest about M17 on a college campus, I think we need to develop a couple of reference implementations for… A minimalist repeater to do M17. This doesn’t have to be "cheap, Cheap, CHEAP”, because as a shared resource / infrastructure, it can probably be funded with perhaps a “quick” ARDC grant (especially if it can be semi-standardized) - we’d like to do the “Reference 1.0” M17 Repeater, here’s the cost that our facilities folks quote for installation at the high point on campus, please send money. I’m being a big flip about this, but it shouldn’t be complicated. Of course,
Started by Steve Stroh N8GNJ @ · Most recent @
Quansheng Stretch ?.. 6
So with all the Modifications being done to the Quansheng UV-K5/6 Radio like removing a chip and slapping on a Wafer Board for LW-SW All Band AM/SSB/ETC, Has anyone thought of if M17 could be added onto this Radio ?.. I mean hell it's the Swiss Army Knife of Radio's I'm just Genuinely Curious ? Rob..
Started by Robert Alford @ · Most recent @
Please talk about the CS800d fcc part 90 5
Can someone address the status of M17 on this rig, please? https://www.csi-radios.com/cs800d-fcc-part-90/ As a dual band with extended UHF receive, Part 90, detachable faceplate, extra memory, adaptive firmware, etc. it seems cool. $429. is a little pricey ... I wonder if they sell refurbished returns at a discount? If used at home could a computer interface replace the features of the CS-BFD? I like the idea of the CS-BFD - if I were mobile more I'd want one. The CS-800D hardware appears to be 3 years old - is there a planned update or is the stock and demand, and the adaptive firmware, such that no new hardware features (and the cost to manufacture such) is planned? Thanks, kd4e
Started by DavidC KD4E @ · Most recent @
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