It should occur once and only once for ; each port in the system. A transistor added. While working on some projects for APRS, I had the need for some more USB audio devices. Three fine wires added to the chip. uses widely supported CP2102 serial interface ( latest driver) and CM108 audio Re: [Svxlink-devel] CM108 USB audio interface support From: s56al <s56al@em> - 2008-08-30 06:47:43 Hello group, I wonder if anybody knows for a source of the CM108 chips where one could buy a quantity of let's say 5 to 10 chips for an affordable price? Measurements. Some manufacturers have settled on the new CM119B chipset. Then I soldered wires to pins 13 and 48 of the CM108 and other pads. The GPIOs can be utilised for triggering the PTT and detecting COS (When the radio is receiving a valid signal) CM108 is a highly integrated single chip USB audio solution. CM108 Sound Fob For ALLSTAR NODE Ham Radio. I did find this but I’m wondering if there is a better way than purchasing an USB Radio interface? (We Rather Build something) How to Modify A CM108 Sound Fob CM108 Support #Cat_RigControl. 2. Plug one end into the auxiliary jack on the other to the back of the Ford stereo, the other into your portable audio Since 2008, a C-Media integrated circuit of some kind has been used as the heart of most radio to computer audio interfacing in AllStar Link. Use modes on your radio that cannot otherwise be operated. Order online at our Secure Web Store! FCC Class B Certified. The interface was active at the time of these measurements, constantly transferring data between the computer and the radio. These are very cheap to buy. ) And 6 wires: 4 to hook up to a radio (x2 10k resistors might be needed) and 2 for optional status LEDs (a 1k and a 200 ohm resister Introduction to Gnu radio GNU radio with gnuradio-companion Creating Gnu radio blocks Block behavior and Scheduler Message passing interface GNU Radio Library Tanguy Risset Introduction to GNU Radio 10 Fundamentals gr-analog gr-audio gr-blocks gr-channels gr-digital gr-fec gr-fft gr-ﬁlter gr-trellis gr-vocoder gr-wavelet Graphical Interfaces Sound Card to radio interfaces category is a curation of 83 web resources on , RTTY/AFSK Interface for Android Phone or Tablet, FT-1000MP interface, Interfacing to PC soundcards. This can be used by a script to interface custom devices, modems or other hardware to SvxLink. Whether they are aware of it or not, users have become familiar with elements acting in a certain way, so choosing to adopt those elements when appropriate will help with task completion, efficiency, and satisfaction. Interface elements include but are not limited to: Input Controls: checkboxes, radio buttons, dropdown lists, list boxes User Interface (UI) Design focuses on anticipating what users might need to do and ensuring that the interface has elements that are easy to access, understand, and use to facilitate those actions. The realization of a need for an IRLP redesign in the future, is probably what prompted the change in IRLP guidelines and acknowledgement Since 2008, a C-Media integrated circuit of some kind has been used as the heart of most radio to computer audio interfacing in AllStar Link. The ZEN-V allows the seamless addition of aftermarket amplifiers into compatible vehicles, delivering audiophile-quality sound without compromising the vehicle factory fit, finish or features. Once I opened them up I found these are “blob” units. The COS signal tells the server a signal is being received by the radio with the correct CTCSS tone. This removes the need to use the audio ports of the motherboard for input and output audio, providing a single DB9 connector for all inputs to and outputs from the node. The SSS1623 chip is now becoming more common, but documentation is scarce. NET USB interface is based on C-Media CM108/CM119 USB audio chip that has some integrated GPIO. If you use a CM108 dongle on a Linux computer, you can use one of the CM108 PTT is the signal to the radio to switch to Transmit mode to send the data in audio form. 00 GM1A-RX. Out of the box, the system comes with drivers for any interface based off a CM108 or derivative audio chip. used in the URI Echolink adapter made by DMK. These signals can be easily connected to the URI’s standard DB-25 connector. Recommended parts : 490Mhz Low Pass Filter 139-LFCN-490 (Mouser) if using SA818 UHF This is my first home brewed Allstar node. RadioPRO Advanced Interface for General Motors Vehicles. CreatePort = cm108 Fake CM108 USB Audio Devices. ACB-1 Jack Box - Stereo Headphone. Product Overview AXPIO-JL1 Pioneer Integration Package for Jeep Wrangler JL. I am using a Baofeng UV-5R with a Raspberry Pi 3 B+ and a CM108 Sound FOB. This is all possible with a modern computer, one of a wide range of third-party programs and a Digital Mode Interface from DX Engineering. Operation : The board has its own power supply build around a small DC-DC buck converter that can power the interface and an external board via the USB1 A type connector. See our SignaLink USB Product Guide to find the part numbers for your radio. The usual solution is to buy a purpose made interface such as a RigExpert or SignaLink (expensive but highly recommended by all who own one) or an external USB sound card. Bill Somerville #27876 . I have been messing around with these inexpensive USB audio adapters. It is modified to provide the PTT switching of the radio and monitoring of the COS output from the radio. Wiring of IRLP DB-9 Interface The DB-9 interface between the radio and the IRLP board is directly wired to the audio input and output on the Pi board. When a radio button is unchecked, its IsChecked property is false. Step 7. The device is mostly surface mount, but, depending on your skill level can be modified into an inexpensive USB radio interface. This is my Radioless Allstar Node. supports full featured CAT interface: PTT, bands, tuning etc. He has also added USB device validation, but it supports only the vendor ID for CM108 chips, so there is another patch here for the 3S chips (SSS1621 and SSS1623). Based on these specs, the PCM2902 isn’t a whole lot different than the CM108. Not all of us want to spend more money to get less, and some of us can't afford to spend thousands on a capable CAT rig just to play a little radio. I saw a few different examples of Radioless Allstar Nodes and figured I’d give it a try too. When used with the right software all settings are software controlled with little to no adjustments. I removed the two audio jacks and the microphone bias resistor (which is R6). PO BOX 2451 Grand Junction, CO 81502 USA. After verifying that L5 is directly connected to C6 and that C6 is connected to pin 26, remove L5 by gently heating one side up and then the other and pushing it aside with the iron. Remove resistors R6 and R7 as well Radio Interface. Step 2. All essential analog modules are embedded in CM108, including dual DAC and earphone driver, ADC, microphone booster, PLL, regulator, and USB transceiver. 05 amps = 0. Use one of your serial ports to key the transmitter or build a simple VOX circuit that will respond fast enough for packet. The following materials and tools are required: 1. The URI contains the C-Media CM108, a high- 1. Many radios provide an interface connector for external access. The StarTech USB FOB is possibly the most readily obtainable and reasonably priced C-Media CM108 based USB sound adapter in the USA. 16, which I am very pleased about. Knowledge of Electronics, Computers and Linux is required to interface this device. Modifying a USB sound fob to act as a repeater interface for app_rpt This document explains how to modify a USB sound fob to work as a repeater interface for app_rpt. Griffin iMic Generic CM108 based USB audio dongle DSUB- 9 female connector for RADIO inputs/outputs (PTT, SQ, AF TX & AF RX) GPIO4 to GPIO8 available on onboard pin connector. It is very suitable for USB headset, USB earphone or USB audio interface box application. Pin headers exist both for LEDs and input Allstar 45963. 6 watts. An attached 6 ft USB cable plugs into a standard USB port on your computer. Likely due to use of adaptive USB mode instead These are based on the CM108 chip that is necessary for the usbradio channel driver in Asterisk. Don't be tempted to just remove C6 and try to solder directly to the pad as Interface Menu Room Status Option Button. ) This is a high-quality full-duplex USB audio You can add PTT control using GPIO3 on a cheap CM108 sound dongle You will still need to make an interface cable to the Mic and Spkr connectors on the FT-2980R A: The URI contains a CM119A audio controller IC made by C-Media. 05 A). transmit audio. This is a CM108 Sound Fob, with C2, R7 and R8 removed. dmk engineering radio interface cm108 usb audio sound chip. Radio Interface. or give our Sales Staff a call at (800) 822-9722 (Mon - Fri, 9AM - 5PM PST). Hambone is a Ham Radio Bot built for the Raspberry Pi. 10K ohm 1/8W 5% through hole resistor Softcomplex, Inc DBA Digirig. Step 8. Any radio with 4 pin round microphone connector with the purchase of a optional 4 pin mic cable; Computer Interface. Click to enlarge. Rather than a real chip on the board with solder pins, the board has an expoy blob over the circuit. 7080 [email protected] Digirig Mobile is a digital modes interface for amateur radio. 6 Modified CM108/CM119 USB FOB; 2 Radio Interface Cables (URI Cables) 3 RTCM/VOTER; 4 Motorola. A 1k, and 2x 10k resister added. You don't want to use the VOX on a radio for packet, it's too slow. COVID-19 Status: OPEN & SHIPPING. The interface uses a built in VOX function for PTT keying making it compatible with just about any digital mode application such as FlDigi, WSJT-X, DM780 (part of HRD suite), Echolink, Digipan, WinPSK etc. 00635510694144. The problem is seriously compounded by the fact that all USB Radio devices (based on the CMedia CM108, CM119, etc) all look alike to the computer, and there is no way to tell them apart, other then by what actual USB connector (interface) that they are attached to. CreatePort = cm108 Connector to interface with a radio like Yaesu FT7900 or TYT TH-9000D; Requires an USB breakout board to connect the CM108 to the USB port, or can be directly soldered to USB pads under the Raspberry PI (D+ & D- only). My interface was built to use a serial port, DB9 pin 7(RTS) for PTT, pin 8(CTS) for COS, and pin 5 for ground. In my opinion, the adapters based on this chipset shouldn't be used with Channel driver for CM108 USB cards with radio interface: Usable: chan_vpb: Voicetronix channel driver: Insignificant If you are using the ConfBridge() application. A radio button has two states: checked or unchecked. Starting with our dashboard we see this: Distortion is about 100 times worse than the best products we test. With USB commonplace, USB, you will either need to buy a ready-made USB interface or build the following interface and add a USB/Serial converter for about £5-15. This project will adapt the CM108 fob to be compatible with a standard Echolink-type interface. The interfaces run through a separate USB soundcard dongle and I've installed a (used) PCIe serial card. 462. Don’t force it as this may damage the solder pads. Audio Amplifier from Adafruit. Admittedly this is at max volume (but with 100 kohm load). com/projects/usb_fob/ and copied here for USB fob for radio interface pt IX. This is best done with a heat gun, just apply the heat and let them float off. 970. Kevin (the owner) mentioned the following in an email after I had built the kit: "If you would have asked, since your using a hand held, I would have recommended the RA-25, RA-30 or DRA-30 as you're not going to need the added audio amplification that the RA-35 includes. Adding support has no relation to "complicating" settings in the user interface. Still, we are talking bottom of the barrel performance here. Add the fine COS wire. Places for audio level adjustment trimmer potentiometers can be seen in the picture. USB fob for radio interface pt IX. These are based on the CM108 chip that is necessary for the usbradio channel driver in Asterisk. SignaLink USB Interface. Input USB Power filtering. These old devices used a chipset (Tenx TP6911) designed for “headsets” and have a fairly poor ADC, with a max of 24 KHz resolution (pretty low). Step 6. In my opinion, the adapters based on this chipset shouldn't be used with This is a great post, I will bookmark this one as I’m also running a UV-5R using CM108 on rpi svxlink so far it’s working really great no complain at all. My understanding is that the GD77's and UV5R's have the exact same speaker/mic pinouts and are both compatible with the connector on the speaker/mic combo unit. A radio button can be cleared by tapping another radio button in the same group, but it cannot be cleared by tapping it again. Clearly either of the PCM2902 and CM108 are going to be better. 4. Interface Key FeaturesBuilt in C-Media CM108 sound card. It is modified to provide the PTT switching of the radio and monitoring the COS output from the radio. SQL_START_DELAY. Resources listed under SoundCard Interfacing category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. sm_cm108sss1621. A uxiliary interface It's a line level input that accepts any audio signals from iPod mp3 or any external audio source the digital audio signal it's input into the Ford Radio pre-amp and you can hear it on the factory speakers. I wanted to modify one and attach a transistor to the GPIO lines to act as PTT. When a radio button is checked, its IsChecked property is true. 8 Pin mic jack. CM108 vs PCM2902 vs TP6911. Thomas Sailer has accepted my patch and released soundmodem v0. $129. Detailed list of components I used in this build are: USB Sound Fob with CM108 chip. A CM108-based Allstar USB FOB. 8-inch in-dash multimedia receivers, the DMH-W4660NEX and DMH-W4600NEX, while retaining HVAC functions previously shown and controlled on the factory screen, retaining audio controls on the steering wheel, and more. These are stand-alone digital audio soundcard radio The interface cables are CM108 USB sound devices which I soldered directly to the Radiodity speaker/mic combo unit. The input is max 30V and it can furnish 3A. PAC-UP Interface Updater. URI may be used for remote radio control or can link two or more radios in repeater mode. 2 The Common Public Radio Interface (CPRI) is an industry cooperation aimed at defining publicly available 3 specifications for the key internal interface of radio base stations, such as eCPRI connecting the eCPRI 4 Radio Equipment Control (eREC) and the eCPRI Radio Equipment (eRE) via a so-called fronthaul transport 5 network. The GPIOs can be utilised for triggering the PTT and detecting COS (When the radio is receiving a valid signal) A simple mod to use the popular CM108 based USB soundcard as an AllStar interface. 0 URI DMK. The interface has a built in PTT function and can be used without a CAT interface. Add a 1K resistor at the bottom and a 10K resistor at the top. Some radios, such as the FT-450D, FT-857D, FT-897D, FT-950, TS-590SG offer a “Digi-VOX” mode allowing the radio to be keyed upon detecting audio coming into the data socket. Retains steering wheel controls (pre-programmed) USB Audio dongles that may be modified for use as radio interfaces for thelinkbox. I included the TP6911, as that was what I was initially trying to replace and improve. Measurements. AMS-1/8F 1/8" Stereo Mini-Jack - Terminal block connections. In later developments, Matt included the ability to be able to use the Pi’s GPIO pins for signal switching and any USB sound card for audio. Take it from me, it isn’t. I've read threats on internet forums that deal with other types of interfaces, but I'd need specifics before I could answer more definitively. A simple option addition is all that is needed. purpose I/O channels. It will even outperform a hardware TNC. LONG ago, I had purchased some “3D Sound” USB devices on eBay. available on ebay, banggood and other online vendors for an average of $5 apiece. Originally posted at http://www. Products A-Z. ) This is a high-quality full-duplex USB audio device with several general. The measured current draw was 50 mA (0. Built-in Low-noise Sound Card. This frees up your PCs internal sound card for normal windows functions. 63) Trim off the prepared 3 pins from the header pins Home of the ARiUSB (Patent Pending) Small footprint Allstar USB radio interface with ACT, PTT, COR Led's, 3 GPIO and CM119 Audio Chip. The HIDRAW squelch supports human interface devices (HID), USB devices like CM108 soundcard e. 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. The FOB I am discussing is the CM108-based sound card available on ebay. This interface was already built and interfaced to the radios, and has been working well for me for many years. Think of this as an IRC bot but with a radio! This project was the result of an experiment I had seeing if my handheld could work as a POCSAG International Distributors. Utilizing the same processing power as NAV-TV's competition proven M650-GM, the ZEN-V produces a completely flat audio output without any Operate easily and effectively with traditional digital modes like RTTY, PSK31, Olivia and SSTV. 1 CDM; 4. ACM-3 Amplitude Component Monitor. AMS-1/4F 1/4" Stereo Headphone Jack - Terminal block connections. An unmodified CM108 sound fob. conf to detect rx using VOX method. This is needed if you want to use this radio with a CM108/RA/URI type interface that supports COR signaling on Windows. Audio can be passed through VOIP/Ethernet. I have still not been able to get rid o USB fob for radio interface. Operational amplifiers (op-amps) are on the bottom side of the PCB for audio signal buffering and level adaptation. Plug and play Because the USB sound card is a PnP device, it hardly requires special device driver software. The best software TNC is Dire Wolf. Supplied with both a standard DB9 RS232 serial cable and USB cable interface (supported for Mac (OS9,10), Linux, Windows (98SE - Windows 10)! May be used old or new computers with your choice of USB or RS232 DB9 serial . However a great many people claim that the cheapest USB sound card “dongle” costing just 99p on eBay is good enough. Remove resistors R6 and R7 as well A simple mod to use the popular CM108 based USB soundcard as an AllStar interface. Admittedly, I didn’t get the precise part number of the chip, but the overall design of this particular device is a mere replica of the application example of CM108, I’m sure. com/projects/usb_fob/ and copied here for Hi all, I am interested in setting up a simplex repeater using allstar link. Likely due to use of adaptive USB mode instead An unmodified CM108 sound fob. Antenna Converting a CM108 USB fob for amateur radio use The CM108 USB audio chip has become a popular choice for Amateur Radio usage, due to its cheap price, good performance, and its exposed GPIO pins. There are certainly other things to consider when comparing. As a background, this effort was triggered while reading the User Guide of Direwolf soundmodem application that mentioned of the possibility of utilizing GPIO3 from the CM108/109/119 sound chip to drive the PTT signal, and the fact that I’m running out The USB CI-V Interface plugs into the USB port of a Windows, Macintosh or Linux computer, allowing an Icom radio (or other radios with a CI-V interface) to be connected and controlled via the CI-V (CIV) protocol. Look for nhrcx. 45963. I'd need to know what the radio interface to the computer was before I can answer the question. The CM108 USB audio chip has become a popular choice for Amateur Radio usage, due to its cheap price, good performance, and its exposed GPIO pins. Home of the ARiUSB (Patent Pending) Small footprint Allstar USB radio interface with ACT, PTT, COR Led's, 3 GPIO and CM119 Audio Chip. DSUB- 9 female connector for RADIO inputs/outputs (PTT, SQ, AF TX & AF RX) GPIO4 to GPIO8 available on onboard pin connector. Then solder a wire directly to the top of C6. This USB FOB can be used for Allstar . Matt realised this was a good a way of linking repeaters via VoIP with a Raspberry Pi, a radio and a genuine CM108/199 USB sound card FOB. The plan is to build a cheap radio interface. Details about URIxB 9170 w/ EEPROM USB to Radio Interface adapter,Ham Radio,USB 2. Converting a CM108 USB fob for amateur radio use The CM108 USB audio chip has become a popular choice for Amateur Radio usage, due to its cheap price, good performance, and its exposed GPIO pins. The interface has a built in external USB Sound Card based on C-Media CM108 chip. 7080 [email protected] A simple mod to use the popular CM108 based USB soundcard as an AllStar interface. patch. Most other projects on the web are using adapters based on the CM108 chip. CM108/119/109. The above photo shows a completed sound fob which is ready to insert into a URIx (Usb Radio Interface) •DMK engineering •$75 for hams •$100 non-hams •25 pins for CM108 sound chip is necessary •RF shielding may be needed This is my first home brewed Allstar node. I would like to connect a linux PC to the uv5r radio via an easy digi adapter / cm108 usb sound card. The CM119A provides one channel of receive audio, and two channels of. ; The following parameters specify how the radio is interfaced to the computer; All are required;; This variable creates a new port. Step 1: Carefully remove the green and pink sockets. The interfaces between the radio and the Raspberry Pi controller is a modified CM108 chip based USB sound card. The Room Status option button is to configure the status of third-party systems that may exist or be used in a hotel room, such as PBXs and other telephone systems, guest messaging systems, video entertainment and movie systems, minibar systems, and so on. Spaces are not allowed in port names. ) And 6 wires: 4 to hook up to a radio (x2 10k resistors might be needed) and 2 for optional status LEDs (a 1k and a 200 ohm resister Asterisk code has been developed for USB sound “pocket”/ fob sound devices based on the CM108 chipset for inexpensive do-it-your-self radio interfaces as well as enhanced commercial manufacture of them. But, for now, I don’t use the COS of the radio, I just set the configuration settings of svxlink. R. (Older URIs used an. pl to see an example. USB sound fob based on the CM108 chip 2. Hi Mike, yes, the required pair of HID reports to toggle the relevant GPIO pin would need to be sent using For systems with multiple USB Radio devices, it gets much more complicated. The squelch start delay is of most use when using VOX CM108 Sound Fob For ALLSTAR NODE Ham Radio. Step 8: Finally just add the four wires to hook it up to your radio. All in one radio replacement and SWC interface, the innovative RadioPRO4 comes pre-loaded with amplifier retention and SWC software, navigation-based output signals, and other features that save time and money during installation. Finally, just Add the four wires to hook the sound fob up to your radio. I build the RA-35 kit for a similar setup (BF-888s radio). My radio is an Icom IC-706MkIIG and as far as I know all the settings are correct. Radio replacement interface retains chimes, factory amplifier, and provides connection for optional SWC retention interface. garydion. The COS signal tells the RPi a signal is being received by the radio with the correct CTCSS tone. Of note, the frequency counter was jumping up and down. All of the port variables following this line; will apply to this and only this port. Download. At a supply voltage of 12 volts, the power consumption is 12 volts X 0. (not just VOX based PTT) serial TxD/RxD lines can be switched to open-collector PTT/CW drivers controlled by RTS and DTR lines of COM port. It acts as computer interface for your radio by listening for DTMF commands and can activate the radio's PTT via the RPI's GPIO to play audio. A Yaesu interface that has a USB PTT connection and an Icom interface that uses a DB-9 serial PTT connection VOX is not used. 1 TX/RX audio, COS, and PTT connections; 4 The CM108 and similar USB audio chips which are used in many low cost USB sound interfaces have some user controllable GPIO pins. 2 Maxtrac. The GPIOs can be utilised for triggering the PTT and detecting COS (When the radio is receiving a valid signal) Softcomplex, Inc DBA Digirig. ACB-2 Jack Box - Dual RCA jacks. The interface between the radio and the Raspberry Pi server is a modified CM108 chip based USB sound card. I have still not been able to get rid o CM108 is a highly integrated single chip USB audio solution. A drop down that with "CM108" could be enough to make that work. equivalent CM108. This radio replacement and integration package allows an installer to upgrade to Pioneer’s Double-DIN 6. (All are surface mounted. My rough schematic - Click to enlarge. The CM108, CM119 and CM119A are used in most of the adapters to date. UI brings together concepts from interaction design , visual design , and information architecture . The interface gives you CAT control of your transceiver via a built in USB Comm port. g. AMS-10K 10K Linear Taper Pot & Knob Assembly - Terminal block connections. With the COR connected all the time to that type interface, the COR signal will mute the speaker output whenever a signal is present and have to manually be reenabled.