Cm108 all star mod. I have still not been able to get rid o.
Cm108 all star mod Work has been done this year to make this compatible with ASL by making the AIOC emulate the identity of the CM108 fob and provide support for the SimpleUSB configuration within ASL. org/ALLSTARhttps://www. Although these aren't usually connected it is possible to modify some of these interfaces to make this available for use as a PTT function or to build an interface from scratch using these devices. Nov 28, 2024 · It’s now 2024- Is there or will there ever be any way to use more “generic” audio interfaces for a radio interface? I was asking this back in 2010. In that case COS and PTT would be on a serial port or parallel port (also built in to thePC). QSSTV is sending the audio directly to the audio device inside the CM108. Various radio-less node designs have been documented online but they seem to all be very basic and outdated. The pin out is : Frame: Reference design: One device, not the one that I have. The receive shoul… How to modify a Baofeng 888s for Allstar. Since the diode blocks any positive voltage from going back into the FOB the high does not matter as long as it is above a couple of volts. I removed the two audio jacks and the microphone bias resistor (which is R6). Another way of configuring this CM-108 sound card. Introduction This is just a short article about what I do to build simplex Allstar Nodes. You need to make sure you buy one without a case so you get the chip you see here. Looking at the board carefully, it looks like the mic tip and ring are wired together and removing 0-Ohm chip resistor R6 opens the 4V mic Vbias line from CM108 pin 25, leaving mic T+R pins connected to CM108 MICIN pin 27 through a chip cap. Jun 22, 2017 · YOUTUBE. Could someone with experiance please view the video and tell me if the COS is on the 2. Going into this, I will say that if you can't solder, are not computer savvy, and don't have some sort of test equipment, it will make doing this EXTREMELY hard to a MattesPCExperts records computer & printer repair jobs as we repair them. It only Apr 7, 2022 · I missed in the build that simpleUSB mod for the CM108 they are using allstar with Hamvoip. Just wires connecting the appropriate pins on the radio to this CM108 board. I always use usbinvert pulled down by 2n2222 transistor. It can also be used as a virtual TNC for other applications such as APRSIS32, UI-View32, Xastir, APRS-TW, YAAC, UISS, Linux AX25, SARTrack, RMS Express, and many… Patched for cm108 PTT soundcard - crazybyte Jan 6, 2012 · The Allstar system came up fine and everything appears to be working ok, the green LED on the URI is blinking and the system creates the audio output for IDs and the like when listened to on a VoIP phone connected to the system over the LAN network. This emulates a CM108 HID device (/dev/hidraw0) and is supported in software such as DireWorlf for PTT keying using the CM108 GPIO method. Transmit will be postponed until the channel is clear by reading the COS signal from the radio transceiver. When I open the case, I found that the chipset is not CM108, even if in raspbberry pi lsusb command says that is CM108 C media chipset, is DP108 T with 2x12 pins. is this a counterfit? if not what are the pins i need for the ptt and cos ? Mike May 9, 2020 · This exact setup is running my AllStar VHF nodes (Motorola CDM1250 and CM200) with no other components at all. Actually, it is not that difficult. The command to activate the PTT is going through the XML-RPC interface (similar to a CAT interface) to flrig which then toggles the actual PTT pin of the GPIO device inside the CM108. Jan 27, 2020 · Hi I’m new and got stuck setting up the node Hardware : -Rapberry Pi 4 Cheap USB Sound Card Baofeng UV5 Easy Digi KF5INZ I guess my node is set up , I can see the green on the nodes list. Everything works okay, IP address is reported on boot, DTMF codes can be successfully sent to and heard by HT, but I cannot communicate with the node with my HT, nothing is recognised on CLI client, and no audio levels are seen on the simpleusb tuning display. In this instalment I will start working on the CM108 USB sound modules and show you how to modify one for use with an Allstar Link node. The ones in This process is pretty simple, update the firmware on the AIOC card then configure it to look like a CM108 audio device that the AllStar software is expecting. Does anyone know how to modify new (February 2021) 888’s to work with the node VARA FM on windows with a CM108 sound card. As of 2010, many distributors were selling USB Sound Fobs claiming to use the C-Media CM108 chip, but many are actually cheap "blob fobs" and not useful for CM108 applications. Many of the Baofeng radios have a superimposed DC level on COS (PL) active signal on the headphone output Jan 10, 2021 · Welcome to part 3 of my Allstar Link node build. How-To Guide with extensive details on building a Full-Duplex AllStar Node using a mobile radio Apr 19, 2022 · The CM108 is a very inexpensive replacement for the RTCM interface that is used for AllStar and the myGMRS linked repeater systems. There is plenty of information on the Internet on how to modify a Baofeng BF-888 radio and how to modify the USB Sound FOBS. My pal Neil offered to do the mods to it. If you open up a terminal window your Raspberry Pi and run the "dmesg" command, you'll see all kinds of kernel logging stuff. img with Hamvoip on a sdcard. qsl. org/portal/nodes. I have still not been able to get rid o HAMVOIPhttps://hamvoip. Mine has 12 MHz cristall quartz Specifications: DP108T Highly Feb 12, 2022 · Hi all, simple question, I am building an Allstar node using the raspberry pi, cm108 sound card and modified Baofeng 888. net/eng/index. So it is possible Mar 30, 2017 · Allstar Sound card fob cm108 mod. Not in any preferred order: Allscan Communications: allscan. The benefit of this implementation is: It’s easy for any ham to build an AllStarLink node No modification is needed to any radio The other mod I made was to pull the final FET off the PCB and bridge the output of the pre-driver to the antenna side of the circuit. com CM108 USB Sound Fob for Asterisk Allstar app_rpt Can anyone advise if there's a way to determine from the Asterisk side if COS is active or not? I've even tried manually taking the CM108 Jun 9, 2018 · After several mobile radio based nodes and a few repeater interfaces, I decided it was time to build an ultra portable node. Part 1 Build-Allstar node -Home made + pre modified CM108 sound card HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 43. No modification of the radio is required! This is accomplished by simply plugging in a mic/earphone cable and fabricating an interface to the FOB. 8K subscribers Subscribed LIVE CM108 Modification for Allstar / Echolink - SWFL Tech Net StarShip Adventures 25. Oct 31, 2023 · I ordered a cm-108 fob from china, and this is what I got. I constructed it following this link here: How To Modify A CM108 for Allstar latest version - allstar May 9, 2013 · This article describes the modification of a CM108 USB Sound Fob for use with Asterisk, Allstar Link, app_rpt VOIP software. Everything should be working, the node is transmitting with audio and PTT is activating properly. Allmon kept saying, whenever I plugged in my CM108 card, that it detected the COS signal and it keyed the PTT, however, I know that both of these were false. The ASL build, simpleUSB dosen’t have that selection in the menu. All essential modules are by David Gleason, NR9V Introduction AllStarLink Nodes can be built in many ways with various tradeoffs between cost, features, ease of construction, portability, and audio quality. A good website to help with building your ALLSTAR node -LETS BUILD IT -STEP BY STEP Raspberry PI3B- BAOFENG 888S -CM108 soundcard. This will expose pins 1 to 12 Use a soldering iron t This article covers how to modify a CM108 sound Fob for Allstar using surface mount resistors, this makes for a neater and easier to construct project. html WB2EDV Printed Circuit Board For the StarTech or SYBA CM108/119 based USB Sound Adapters For AllStar - Asterisk - app_rpt By Kevin Custer - W3KKC I have a CM108 audio fob which when inserted into the Pi USB port it doesn't seem to be recognized (it works OK in my PC). My goal here was to make it as simple as possible. In the schematic, the twisted end is attached to a capacitor (which isn't in the picture CM108 Sound fob (usb) Modification for Allstar microcode HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 47. We decided to do this, to try and provide more detailed information on each repair. Mic T-R pads are on J3 on the red LED side of the board if the jacks are removed. putty. 4K subscribers Subscribe Feb 12, 2012 · I'm still chipping away at modifying a Startech CM108 USB fob - so far I have successfully got PTT and audio out working, but I'm struggling with audio in and COS. If you don't want to deal with the tedium of soldering cables for your radio interface to your radio, this is the option for you. phpPUTTYhttps://www. org. . Introduction The CM108 and similar USB audio chips which are used in many low cost USB sound interfaces have some user controllable GPIO pins. Jul 21, 2016 · I recently helped a few guys setting their AllStar node and I tried to build one for myself. uk he has created a couple of scripts and detailed instructions to flash the card and configure it to look like a CM108 audio device. CM108 and open to mods. I removed everything that is Jul 21, 2025 · Hello, As subject I have broken 3 fobs so far trying to mod them for a GM360 radio. 9K subscribers Subscribed Feb 1, 2021 · Using UV-5R modless with CM108 audio fob?1 - 15 of 15 1 May 26, 2024 · I was looking for a CM108 mod that works well with my Motorola DM3601 radio. Can anyone help please Mar 17, 2024 · I ordered a Raspberry Pi 4B kit and a CM108 USB sound card. COM Allstar Sound card fob cm108 mod Justin Grigg and 3 others 4 Jul 18, 2025 · Currently the URI (because of the CM108-AH chip) only supports 2 usable GPIO pins (GPIO 1 and GPIO 4), plus one pin (labeled GPIO2, but is actually the 'HOOK' signal on the CM-108AH chip) that may be used only for input. I’ve always thought it would be fun or cool to use the built in audio on a laptop or PC motherboard that is already there. To entre the competition, please click here: • Allstar Node or Kit Free Giveaway Competit I’m not an expert, I’m an Jul 13, 2019 · Greetings, Has anyone come across this “new” variant of the 888s radio? I’ve been looking over the guide(s) on modifying them for use with AllStar and cannot for the life of me figure out where several of the signals can be picked up… Here’s an image of the back of the main board in the radio: I’ve removed the 5 screws on this board but also cannot figure out how to liberate it Mar 4, 2022 · Bought this years ago to modify for allstar and now I can’t find the mod. Introduction This article describes how to interface a Baofeng UV5 or UV82 and others but NOT the 888 to Allstar without modifying the radio. After months Sep 28, 2024 · Think of the CM108 chip as two completely separate devices (audio + GPIO). Most nodes now available support only half-duplex operation and often have low audio quality. This includes modifying the USB FOB and the Baofeng 888. com/how-to-modify-a-cm108-for-allstar/All cr Jun 24, 2024 · The All-In-One-Cable (AIOC) is a Data/Soundcard/PTT device for two-pin HT radios. The Boafeng 888 makes a great radio on the cheap and is well documented for Allstar service, so it was the obvious choice for my "personal node" One can get up and running with a Raspberry PI, SD card, 888, usb sound FOB, and a small assortment of cheap components. 3 firmware also provides a virtual-COS function to detect when the radio is receiving a signal and indicate this to the AllStarNode software. Sep 5, 2024 · Hi all, I am VERY close to setting up my ASL node, however…I tried to modify a CM108 (this time correctly) but…it didn’t work. But, the real fact of the matter is; With the latest developments within AllStar you do not need any understanding of linux. Jan 19, 2021 · In the last installment, I covered modifying the popular CM108 USB sound module for use with the Allstar Link Node and I remembered that I had used the CM108 in a digital mode interface that I designed and built back in 2018. Everything was fine until I ordered 10 new cm108 (3usd each) from an online store where I ordered my previous soundcards. HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 44. Even on 1W with the low power setting and using the trim pot to dial down the bias, the UV5R would get really hot (doing all the overs on the UK HubNet and it was BBQ Chilli time with oven mitts). I requested a node number from allstarlink. com CM108 Sound Fob for AllStar Link System. That's fine, they certainly capable of way better audio than we're using on a 3K communications circuit. info Masters Communications: RA Series Radio Adapter Index Page Hotspot Radios: ARiUSB5 Toads Digital Interface: TOADs Digital Interface – Temporarily Offline. I've been following Modifying a StarTech. But why limit ourselves to using the audio chip for digital I/O? We already know that the parallel port can be used for this I/O (smoke 'em if you got 'em). Otra forma de configurar esta tarjeta de sonido CM-108. Jan 30, 2021 · I've got my Allstar node working correctly with a CM108 fob and Baofeng 888s radio, but now I want to try getting it to work with a Baofeng UV-5R. Jul 21, 2025 · Sometimes its easier to buy rather than build 😉 Several people in the USA make CM108 based radio interfaces. But they must be getting closer. While the RPi2 and BBB will eventually have GPIO capability for Allstar COS and PTT I really think it is much cleaner to StarTech CM108 based USB Sound Adapter modification to USB Radio Interface For AllStar - Asterisk - app_rpt By Kevin Custer - W3KKC Apr 16, 2018 · M0NFI - Provided the photos, and this particular design G7RPG - Continued assistance, inspiration, tweaks, innovation, and prolific CM108 builder WB6NIL (SK) - Original developer of AllStar, credited with designing the CM108 mod W9SH - Also credited with designing the CM108 mod. So i decided to put the RPi2-3-4_V1. For our first attempt we're going to utilise some Baofeng UV5R 's that we already have handy. That has a bigger selection of things to do which one is invert PTT. There is a few reasons I decided to go with the Uv-5R. Here is my idiots guide to building an Allstar Node – Part Four. Component list2x 1N4148 d Jun 16, 2024 · The cm108 is a sound card used to build a node or repeater on gmrs it allows you to connect to a actual radio. The CM108 needs some hardware modification to be used for this. As I cannot get a fob working due to my lack of skill, what options do I have please? 73s de 2D0PEY. He has the equipment for SMD work so I just said yes. MODIFY CM108 for ALLSTAR & BAOFENG 888S HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 49. The mod comes from here https://allstarsetup. A few months ago, my friend JC (W6IPA) told me he wanted to build an Allstar node. It's a fine device for audio, way more excellent than we need. Then I soldered wires to pins 13 and 48 of the CM108 and other pads. Along with the popularity of the AIOC GitHub - skuep/AIOC: Ham Radio All-in-one-Cable I am also using this chipset in my Universal Radio Controller (see Jul 1, 2024 · A ham radio blog that focuses on radio related projects, building radio transceivers and other electronic related projects. 9K subscribers 10 Jun 14, 2022 · I have read many articles on building an Allstar node based on the commonly available CM108 sound fob and the Baofeng 888s HT radio. Saving users valuable time scouring Jul 10, 2009 · App_rpt-users Services July 10, 2009, 3:12am 1 That would be another great use for the tones, choosing which remote node you would want to connect to. First and main reason: very simple modification to connect to DMK URI; they are priced very low like $15. I am using a Baofeng UV-5R with a Raspberry Pi 3 B+ and a CM108 Sound FOB. Below is a photo of the interface completed. 9K subscribers Subscribed Jul 17, 2024 · CM108 Sound card mod for Allstarlink node build. Most of the articles that I have read rely on making major modifications to the CM108 sound fob by removing the 3. 5 R1 Jul 4, 2016 · I have several of these fobs. 6-14_Allstar. CM108/VCM119 DIY Radio Interface Module Contents: References [Top] [Home] https://allstarsetup. Problem , I do not need the cos or ptt thing or modify a usb sound , is it possible just to configure the vox to handle the PTT . Dire Wolf is a software "soundcard" modem/TNC and APRS encoder/decoder. I have my node setup, working and ready to go MB7IGV, Im registered with All Star and I think that Im good to go. Oct 3, 2024 · I have already setup multiple ASL nodes with cm108 sound fob. com CM108 - MODIFICATION - ALLSTAR - Remove Components HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 46. Has anyone been down this trail before that can help with wiring instructions with the DMK URI Mar 31, 2021 · Allstar node -pre modified sound card Home made - Build and test HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 43. Can you recommend one? Do you think this mod for the Motorola GM340 would also work for my radio? allstar setup. I just confirmed R6 Mar 2, 2015 · I made the modification to the startech CM108 sound fob. It can be used stand-alone to observe APRS traffic, as a digipeater, APRStt gateway, or Internet Gateway (IGate). We have step by step instructions and much more to help you build your node. There are commercially available units and a lot of . This is for a second node on the same machine. 1 - 4 of 4 1 Feb 2, 2024 · I am building an ASL node using a raspberry pi 3b, a Baofeng BT 888s and a CM108 sound card. I've modified the CM108 fob per these instructions --> https://allstarsetup. com and I can hear traffic from nodes with active users but I am NOT able to make my “transmission” to go out? I have the node setup with the simpleusb-tune-menu application and when I push my PTT and have it showing the COS, CTCSS and PTT status - the COS changes from Radio The radio I decided to use on my Allstar node is a Baofeng UV-5R. 9K subscribers Subscribe How to Modify a CM108 for Allstar latest version This page describes a simple method I have been working on recently to modify the CM108 sound fob for use with Allstar, you only need to cut one track and add one resistor, the rest is just wiring. CM108 Sound Interface (SMD edition) The CM108 is a USB sound interface chip that has become popular among radio amateurs due to it's low price (~£3. The big question would be what are the duties and taxes to be Mar 25, 2021 · Allstar micronode - CM108 sound card modification using surface mount components -made by G5REV HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 44. KB0p Simplex Nodes To build an ALLSTAR NODE, the three components required are the: (1) Computer (Raspberry Pi) (2) Interfacing Device (USB Sound FOB) (3) Radio Transceiver (UHF The idea of setting up your own AllStar node can seem very daunting at first. The module forms a link between the modified Baofeng radio transceiver and the Raspberry PI single board computer. I personally had never seen linux before I started down the path of VoIP systems and AllStar. Thanks to mark@g1lro. A CM108-based Allstar USB FOB This USB FOB can be used for Allstar. No mods have been made yet to the fob as I just wanted to see if it worked in the Pi. 00 for the body only and $29. phpHEADPHONEShttps This video gives some tips and tricks that you can follow to make your allstar node correctly and eliminate the most common problems that you may face!*Impor Aug 6, 2015 · Giday! So, still waiting on my Raspberry PI2 's. How To Modify A CM108 for Allstar latest version How to Modify a CM108 for Allstar latest version. I know all the pros and cons about using the VOX, but for now that’s all A Sub $50 IRLP/AllStar Node Radio Solution That Actually Works! Sep 30, 2025 · To add another resistor was my next move, but since I’ve never had to mod any other radio before, including the same model as this, it led me to investigate the level out of the CM108. SD-CM-UAUD Anyone have this mod for this fob? Sep 17, 2022 · Allstar NODE- Modified CM108 Sound Card -Ebay Link HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 40. com/modify-a-cm108-sound-fob [Top] [Home] Nov 1, 2023 · The Digirig Mobile are usually used for digital modes on portable radios, but for AllStar use may not provide any significant advantage over a CM108 fob other than the metal case. 00 for complete radio with charger. Then I installed and configured the HamVOIP software from hamvoip. 1K subscribers 27 Mar 21, 2022 · How to Modify A CM108 Sound Fob For Allstar Baofeng 888 Pocket Node Kenwood TMG-707 Dual Band FM mobile Radio (pdf) Radio Interface Cables (URI Cables) KE6PCV's URI Cables are custom-made cables for many radios. This latest modification is indeed simple compared to my previous legacy modification designs which you can view via this link: LINK You may wonder Aug 20, 2022 · AllStar Node CM108 sound fob modification Use a heat gun to desolder the audio plugs. 2K subscribers Subscribed Apr 23, 2024 · CM108 - SOUNDCARD MOD - ADD COMPONENTS HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 39. Many people are scared off by the thought of using Linux. net/k0kn/cm108_mod. allstarlink. com/how-to-modify-a-cm108-sound-fob-for-allstar/ YouTube Video Description: Easy and Affordable Allstar Node with AIOCHave you ever wanted to build an Allstar node but thought, "What the heck, man, it's jus Apr 25, 2024 · The following process makes the AIOC CPU emulate the CM108 identity so the AllStarNode software thinks that it has a CM108 attached. The CMedia CM108 is a highly popular single chip USB audio solution. The FOB I am discussing is the CM108-based sound card available on ebay. This is a short video on how i converted a CM108 sound card for Allstar , Made so it can be swapped or the radio swapped over easy . CM108 Sound Fob modification for Allstar node HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 40. CM108 Radio Widget from Tom Wardill on TindieCM108 audio and GPIO board for Radio Softmodem Designed by Tom Wardill in United Kingdom Oct 8, 2022 · Setting up the hardware and software for an AllStar Link Gateway using a Tait TM8110 which is a 25W PMR radio with a Raspberry Pi and USB sound card interface Dec 26, 2020 · Over the years, I have made several Allstar, Echolink, and APRS nodes 1. This is my first home brewed Allstar node. Using you tube , however the modern 888 board layout is quite different to the older 888’s. Mar 18, 2016 · So I get that we're restricted to the C-Media chips. org/WNSCPhttps://winscp. 5mm audio sockets, removing several components, scratching etchings on the board to break Jan 31, 2022 · How to mod a cheap sound card to use as an allstar interface URI. 7K subscribers Subscribed Oct 22, 2024 · I am at the start of my AllStar journey 😀 I have converted my Baofang accoring to this Utube video, Baaofeng UV-5R conversion for ALLSTAR - Search Videos but have a problem , with the COS connection. The radio side of the diode can pull it low. Jul 26, 2015 · The cm108 has a weak pullup and you must use a diode pointed out from the FOB to the radio COS. You don't use this if your using a USB radio. Dec 8, 2020 · Modifying a StarTech. The problem with the new sets of cm108 is that pin 48 keep of being triggered even if I disconnect it to the transistor. This is one of several videos, preparing for a complete build. It can be used for automatic ident, allstar nodes, repeater control, etc. I gave him this piece of advice: if I had to make a new Allstar node, I would create a Raspberry-Pi hat with a radio module like the SA818. https://www. How to Modify a CM108 for Allstar latest version This page describes a simple method I have been working on recently to modify the CM108 sound fob for use with Allstar, you only need to cut one track and add one resistor, the rest is just wiring. Aug 12, 2020 · Hello, Recently I bought Logilink ua0053 usb sound card to modify for allstar link. 50), ease of modifications, and the presence of GPIO pins for triggering things like PTT or detecting squelch opening. There are only two tricky connections for COS and PTT and with magnification they should be easy for most hams. Introduction There are numerous USB sound FOB modification methods shown on various web pages on the Internet. There’s lots of others out there but it’s like drinking from a firehose trying to find it. Oct 25, 2023 · Greetings I’ve been spending some time working on getting Allstar working with the AIOC processor. ALLSTAR node -CM108 sound fob modification diagram HAMTech RADIO SCANNER M0FXB CB DRONE HOBBY Diary 55K subscribers Subscribe Jul 8, 2009 · Ok, I'm modifying a CM108 USB adapter, and though I've done it before I can't remember if whether the picture or the schematics are correct in the pdf file. However there is no audio when heard from another radio. This module can output 1 Watt of power with 5 volts, or ½ a Watt on the low power setting. I do not know enough about the system yet to know what it is apart the fact that I need it. Default PTT delay and GPIO number are chosen to work well with the BF-888S and the commonly found homebrew CM108 mod with an NPN transistor to drive the PTT. All other items ordered that same day from China have arrived 1+ weeks ago! In the mean time I'd like to make the cabling up. Prices in quantities have gone as low as $8 in early 2017. Software in the V1. 5K subscribers 26 Aug 1, 2024 · I am trying to setup a raspberry PI with a CM108 soundcard similar to the setup described on the website allstarsetup. 5K subscribers 27 The Baofeng 888 is probably one of the best for the price transceivers to use as an Allstar node radio. In the picture, I see that for the mic input (RX Audio) has the twisted (or just soldered) end of the 68K and 470K attached to the 9 pin connector. suzjrx hgss hgynu nueuor ljqkvz bls pdiaarjw rhbr swuz vomw vpysl qlqyzr bpqut swucuif gnqlj