The 25 ctcss tones are decoded to a 5 bit binary output see kit pdf for details there is also a logic output for indicating the presence of a valid tone. Contribute to yo3hjvarduino development by creating an account on github. Windows 10 compatible twotone decoder and fire dispatch logging system. Comtekk two tone decoder software discover fire tone out frequencies using your sound card. The design goal that motivated the tonelcd was to come up with a miniature, full feature ctcss encoder decoder that was easy to use. The tp3200 also functions as a desktop ctcss, dcs and dtmf decoder with its rs232 port and advanced, comprehensive tone logging features for shop use. Your ctcss decoder may not be operating properly, maybe requiring more audio level than normal, or 2.
A transmit high pass filter is included to reduce the possibility of false decoding. I neglected to order the computer connection cable with the radio its on the way, and ive already installed the chirp software on my linux desktop computer. Ctcss and other tone squelch support dtmf, ccir, zvei, eea, eia, natel and more. Ctcss decoder with arduino from a friend of mine i got an ideea for a complex repeater controller, able to work with 4 radios. Wtb a yaesu fts7 ctcss pl tone board for a yaesu ft203r. Find file copy path fetching contributors cannot retrieve contributors at this time. You may discover it while youre puzzling over the fact that a particular repeater seems deaf to your signals. I found the manual and schematics online and found that this rig was built to accept a tone generator as an addon. Comtekk multi decoder utilizes the latest in digital signal processing dsp technology to instantly and accurately measure the frequencies of a received two tone paging signal or fire dispatch tone out signal, ctcss pl tones, and dtmf codes. The dtmf decoder software is an essential tool for audio technicians, police officers, forensic technicians, countermeasures technicians, and other audio related fields. This old, unmaintained software comes with no warranty of any kind. Ctcss ctcss stands for continuous tone coded squelch system. This kit measures each cycle of the ctcss tone to provide a very fast response time taking ctcss tone to decode. Improved decoder with dtmf, ctcss, relay control and more.
Dtmf tone decoder 2020 free download for windows 10, 8. Mini 6 position dip switch to select desired tones. Multi tone decoder software download scanner master. Piexx company tonelcd direct reading ctcss tone encoder decoder tonelcd if you are like me, you hate looking up dipswitch settings for tone encoder decoder boards. Ctcss is an acronym for continuous tonecoded squelch system and is a system that is used in shared two way radio systems. The ct30 is a ctcss decoder encoder on a single printed circuit board. Download tone decoder software advertisement dtmf tone decoder v. See also matthew kaufmans mdc code from which winmdcd is based. We enumerate the tones using letters, which are included in the id of the repeater. I imagine a dialog with a combobox or list that would have the common tones 103. Bc8500xltbc9000xlt decoding ctcss with software and manually.
In the received audio path the radios audio is routed to the tone decoder input of the chip. When ctcss is used, the audio is filtered out below about 300hz, so that the only audio frequency energy that ends up being transmitted between 0 and 300hz is the ctcss tone itself almost always any one tone between 67 and 254. A soundcard decoder for dcs and ctcss subaudible signalling introduction this program is a sound card decoder that will display received digital coded squelch dcs codes and continuous tone coded squelch ctcss frequencies when connected to a radio receiver. Decode virtually any tones by using your sound card and scanner. Comtekk multidecoder utilizes the latest in digital signal processing dsp technology to instantly and accurately measure the frequencies of a received twotone paging signal or fire dispatch tone out signal, ctcss pl tones, and dtmf codes. Hey just wanted to let you know your two tone readerdecoder software is awsome. Its powered by 7 to 16v dc and draws only a few ma. In this video mike shows how to decode ctcss dcs tones using kg tone. Windows touch tone keyboard used to generate a dtmf sound into your sound card. This link is listed in our web site directory since thursday jul 24 2014, and till today dtmf ctcss and echolink has been followed for a total of 169 times. Same circuit as the ts64, but with an onboard dip switch to allow tone selection without soldering jumpers. Selection of software according to sdr sharp plugin dtmf topic. Comtekk multi decoder will listen for any sustained. It is common for a single radio channel to be shared over a number of user groups for frequency use efficiency.
Wisco international communications specialists encoder. Meantime, in case i need to transmit or theres a delivery delay for the cable, how do i set up the tone for the local repeaters. Ctcss dtmf tone decoder and encoder resource detail the. Your local repeater is sending a ctcss level that is low enough that the radio is not responding properly, but enough level that the ht is operating ok.
Ctcss decoder encoder sub audible tone decoder based on aa a mx165cp from mxcom this plan is an ideal mod for old fm tx, without tone sqelch. Ctcss is a system whereby a not really subaudible tone is encoded into the transmit audio of a radio and a receiver on another radio on that frequency will only. Ctcss codes are functions that reject undesired signals on your channel. Two of them forming a uhf repeater and, at least, two other, forming a second repeater or simplex radios for linking the first repeater with other remote repeaters. Pi2ehv b indicates the callsign is pi2ehv, and the tone is b, 71. Continuous tonecoded squelch system the radioreference wiki. Uses sound card to generate ctcss, dtmf, 2 tone paging, tone remote, and 56 tone ani. However, i tried it out with a couple of sample files i found on the internet and it didnt produce any output. Jul 03, 2019 in this video mike shows how to decode ctcss dcs tones using kg tone. The only capability this 25w rig was missing is the ability to transmit ctcss pl tones or sub audible tones to activate a repeater. Tone boards jukebox slave clocks syntorx tone boards radio interfaces radio upgrades tubes components so2rxlat usb to lpt translator nakamichi ecommerce, open source, shop, online shopping. A ctcss decoder might allow you to keep the radio noise at a tolerable level, while still providing a way for your. The low pass filter in this design is not that great, but all you need is one or two led flickers to ensure that the ctcss tone has been properly detected, decoded and stored in the pics eeprom. When you purchase communication specialist products, you get quality that the communications industry has come to rely on for over 45 years.
My goal is to tone comes from the processor to receive any output port. So im going to be using my uv5r with a few motorola walkie talkies that runs on channels. Especially the encoder part is a lack as most repeaters use these tones nowadays. These products encode standard ctcss tones, split tones, and digital coded squelch dcs. Instantly discover fire dispatch pager tone frequencies with our easytouse tone decoder. Ctcss dtmf tone decoder and encoder resource detail. The tone is selected by the combination of 5 jumpers in 6 positions.
The ptt line of the qt1 should be connected to ground for continuous tone generation or to the radios ptt line for tone generation only on transmit. The analog or digital ctcss tone for analog radio transmissions using ctcss display, if present, displays within a second. The da conversion is achieved by an 8bit converter using pwm modulation. Introduction this program is a sound card decoder that will display received digital coded squelch dcs codes and continuous tone coded squelch ctcss frequencies when connected to a radio receiver. U10r, wh100r, wu451r and earlier models u10 and u14 series repeaters.
Tone decoder freeware software free download tone decoder. Tsu64ds universal plugon type ctcss encoder decoder. For the convenience of new users the installation package includes version 3. The nc112 ctcss encoder decoder provides the unique ability to. The audio input of the computer must be connected to the discriminator of the receiver. These include the 38 ctcss tones plus splits, 106 dcs codes and custom tones. Using a ctcss or dcs decoder permits your scanner to open the squelch only if the transmission has a code which matches the code you program. Add ctcss pl tones to your old vhf rig nashua area radio. Inexpensive frequency counters check ebay with ctcss decoders can also do the job and will even detect digital tones.
There is an encode enable input that connects to the radios ptt line active low. When the repeater ids, it also sends that letter, i. Upon decoding a valid pl tone, the board gives a logic change. The project over a long time trying ctcss tone decoder. Ctcss dtmf tone decoder encoder iw5edi simone hamradio. This link is listed in our web site directory since monday dec 21 2009, and till today ctcss dtmf tone decoder and encoder has been followed for a total of 1652 times. So far ive configured the frequencies for said channels but theres no documentation for the privacy codes which i assume would be ctcss.
The ctcss tone prevents users of a shared system from having to listen to other users talking if they are not part of the same group with the same ctcss tone frequency. I made a filter that integrates with the tl082 and the tone frequency of 88. Tonesql this sets the ctcss tone to be transmitted and used for receiver squelch if the tone mode is set to tsql. Tone this sets the ctcss tone to be transmitted if the tone mode is set to tone. Comtekk multi decoder makes use of the computer sound card and software dsp digital signal processing techniques to decode and instantly display paging, dtmf, and ctcss toneencoded information. Tonelcd direct reading ctcss tone encoder decoder tonelcd. Board for direct plugin compatibility with relms repeater models. Comtekk twotone decoder software discover fire toneout frequencies using your sound card. Depending on the subaudible tone frequency selected using the programming inputs, as well as if that particular tone frequency is present in the audio input, the rx decode output pin 15 will go to a logic level one for a valid tone decode. I therefore modified the software to use a software dds generator which will output a nice sinus. Features include reverse burst squelch tail elimination, timeout timer and penalty timer. Dtmf tone decoder is a simple audio spectrum analyzer. Two tone paging decode old diy outdoor access pointclient bridge. Tone selection is programmable through the use of solder pad jumpers.
About dtmf ctcss and echolink the resource is currently listed in in a single category. Aiglon dtmf coder decoder is a small, simple and easytouse program that represents a windows touch tone keyboard used to generate a dtmf sound into your sound card. This program is a sound card decoder that will display received digital coded squelch dcs codes and continuous tone coded squelch ctcss frequencies when connected to a radio receiver. May 02, 2012 dcs ctcss decoder free downloads 2000 shareware periodically updates software information and pricing of dcs ctcss decoder from the publisher, so some information may be slightly outofdate. I really dont see why finding the right ctcss tone is such a big deal, at least here in the netherlands. Dcs ctcss decoder free downloads 2000 shareware periodically updates software information and pricing of dcs ctcss decoder from the publisher, so some information may be slightly outofdate. To adjust the ctcss output level, you can either use an fm deviation meter or another 2 ctcss equipped 2 meter radio set for ctcss receive. For the current etsi standard ts 103 236 continuous tone controlled signalling system ctcss and digitally coded squelch signalling dcss document, go to the etsi standards search page and search for etsi ts 103 236. Programming is accomplished through its rs232 port to a basic terminal or any pc with communications software. In this project the ic detects 39a tones in thea a 67 hz 250 hz range you can find aa filter this embebbdeda 0300hz to. Arduinoctcss fast decoder at master yo3hjvarduino github.
All 64 tones are accessible via the 6 position mini dip switch. Below is a photo showing the jumper locations for the tone input. Tone signaling ordering the locator pet tracking system. At our orange california factory, we utilize the latest in assembly technology to help assure consistent quality throughout our entire product line. Other radios must have the same ctcss tone or code set to hear the transmission. Ctcss is an acronym for continuous tone coded squelch system and is a system that is used in shared two way radio systems. About ctcss dtmf tone decoder and encoder the resource is currently listed in in a single category. By ken collier, ko6ux if youre an fm operator, youll encounter ctcss continuous tone coded squelch systemearly in your ham career. Software to decode selective calling tones amateur radio. Ctcss encoder decoder board by masters communications. However one disadvantage of older generation transceivers is that they dont have any ctcss system. Dtmf tone decoder 2020 free windows software downloads.
Nc112 ctcss encoder decoder repeater tone board the model nc112 is a field tunable ctcss encoder decoder designed as a single p. Our ctcss encoder kit can encode up to 47 ctcss tones with a sine wave output. Comtekk multi decoder makes use of the computer sound card and software dsp digital signal processing techniques to decode and instantly display paging, dtmf, and ctcss tone encoded information. In cross mode, it has additional meanings see description of cross mode for more details. The on4dst ctcss encoder is a miniature ctcss tone generator. Then showing how to find ctcss with optional bc005 tone board and manually scrolling through.
Need external pl ctcss tone generator for old 2mfm rig. Apr 09, 20 decoding ctcss first with connection from discriminator to computer through soundcard and software. Ctcss is short for continuous tonecoded squelch system and is a low frequency tone added on to some transmissions used in handheld radio systems shared by several distinct groups. The main category is dtmf projects that is about dtmf projects. Multiple tone switching can be easily handled by using diodes and a single pole. Comtekk multi decoder utilizes the latest in digital signal processing dsp technology to instantly and accurately measure the frequencies of a received two tone paging signal or fire dispatch tone out signal, ctcss pl tones, and dtmf codes receiver audio output is fed into the computers sound card via cable or microphone where an ad converter reads the signals. There are over 40 different ctcss codes and you can program a specific ctcss or dcs code into each memory channel. If a call containing a different tone or code is received, squelch will not open and you will not hear the call. Ctcss dcs cross tone 2 ctcss frequency scan this function scans through all ctcss frequencies to identify the incoming ctcss frequency on a received signal. Comtekk multi decoder will listen for any sustained tone signal and display the frequency or frequencies. I just got this new 2m70cm handheld, my first ham rig.
Doesnt answer your question but just giving some other options to ponder. You will hear a call only when you receive a signal that contains a matching ctcss tone or dcs code. You may find this useful when you cannot recall the ctcss frequency that the other persons in your group are using. After configuring your qt1 for the proper tone frequency, simply connect the ctcss tone output to the modulation input of the transceiver. Uses sound card to generate ctcss, dtmf, 2 tone paging, tone remote, 56 tone ani, selective calling, tone burst and more. Both actrive high and low outputs are available simultaneously. Decoding the secrets of ctcss while most rigs can send these lowfrequency audio tones, decoding them is a handy trick, too. Ctcss was developed into a system with numerous standard tones to choose from, often 38. So ive decided to quickly put some lines of code in an arduino and make myself a ctcss encoder. You should confirm all information before relying on it.