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Registration This process is only for radio amateurs in order to allow them to broadcast in chat rooms that affect web portals. Other users can only use the server's free chat rooms that are not related to radio amateurs. For new ham radio users who want to be able to use PTT, a copy of the radio operating license (back-to-back) is required to be sent to the e-mail below, which should show the name, call sign, date of issue and expiry of the permit. The date of birth, address of residence or alternative radio locations are of no interest and can be covered with a physical object, excluding any digital processing. In these cases, it is deemed necessary for the interested party to be registered in at least one of the international P/E forums or websites, in order to avoid any doubts about identity due to the covering of personal information in the permit. *** It has been frequently observed that some FRN users use special characters when choosing a username. To address this, a stricter validation of the characters used in the username is now implemented. Please note the following two conditions: Username consists of the two FRN data fields, the callsign and the name, and is compiled to the string "CALL SIGN, name ". The callsign usually consists of uppercase letters or numbers. The only other characters allowed are: Space, Slash, and Slash . And the first character of the callsign must be an uppercase letter or number. The name consists of letters . It can also contain numbers. The only other characters allowed are: Space, Slash, and Slash. And the first letter of the name must be uppercase. This stricter control of characters used in the operator name applies to all new FRN password requests that result in a new FRN user registration (initial registration of a new FRN account). Existing FRN user accounts are not affected by this. *** Before you request registration in Hellas-FRN using the form below, you must have downloaded the program and obtained its operating code from the system manager: freeradionetwork.de, using the same email which you will put in the form. If you are an old Hellas-FRN user who used the application of the Original System Manager and wish to reconnect, due to changing the System Manager from EU in DE , please note the options you have as stated HERE , HERE and HERE . (Don't ignore them to be able to enter!) in the website's database with an additional level of protection. (PII data)*** New User/New User Other type of registration/Other type of registration* Type of Use/Type of Use* Callsign/Callsign* E-mail* Notes-Message/Notes-Message Attached file/Attached file Front face of License/Front face Attached file/Attached file Back face of License/Back face I accept the data management terms and conditions/I accept the data management terms and conditions * Submission / Submission Important reminder: In the event that with your registration you intend to operate an internet voice gateway, be aware that for the connection of the tranceiver with the server Hellas-FRN you MUST use narrow configuration. Colleagues who will enter using RF in an internet portal are required to set the tranceivers in narrow configuration in order to have the correct access, but also to avoid interference from neighboring frequencies. REGISTRATION APPLICATION INSTRUCTIONS With an asterisk (*) refers to a mandatory field. 1st Field: Registration Type: New User: Registering for the first time. 2nd Field: Other registration type: Reactivate Old User: For users whose license has expired, changed e-mail, or for any other reason. More Activations: Activate one or more additional accounts of the same user. 3rd Field: Type of use: PC only (Without tranceiver connection) Online Portal (Gateway with tranceiver connected to a suitable adapter (interface) and the appropriate security previlleges around broadcast topics) Two-way transponder (Crosslink between two programs on the computer in terms of the audio part of the information exchange) 4th Field: Callsign: Enter the callsign in capital letters. 5th Field: E-mail : For more than one e-mail, separate them with a comma (,) 6th Field: Notes: Here you can write additional information or questions about your registration. 7th and 8th Field: Upload the requested files as described above with separate actions for the front and back of the license. Accepted files: jpg, png, pdf, webp. Prefer one of the first 2 or 3 file types and avoid bulky files. A maximum of 1 to 1.5 MB is enough for clarity on each side of the license. At the end and once you have filled in the necessary fields press Submission. Please note that the activation process will be completed as soon as possible. Please check your access periodically after submitting your information. Yours sincerely Hellas-FRN.net 73!

Construction derived from the ready-made μ-Interaspi version, only here the specifics for Allstalink Gateway operation have been integrated. A switch is located on the back of the device for operation as ASL Gateway or DEFAULT Gateway. The choice changes a lot in its internal mode of operation, but in both cases it uses the built-in raspberry instead of a separate PC to run the program. The Allstalink program with everything else you can integrate as described in videos elsewhere on this site, utilizes the capabilities of a radio gateway with a simple transceiver and links this wireless communication with the other side with a digital network. It goes without saying that Allstalink mediates this through bridging with echolink and DVSwitch. It goes without saying that even if the transceiver does not work, connected or not, the rest operates as an AllStaLink Node in the global network with whatever interfaces you will have to other analog or digital networks. Simply, the transceiver passes all this activity over the air for analog communication and via RF. The following project is in the process of being formatted as a device and not as a construction, i.e. whether or not it works with bare boards in the air and cables everywhere. The circuits have already been tested, they performed correctly and now it's time for the aesthetic side of the effort. The built-in raspberry can also be what someone already has and simply be placed in the specific position with the remaining internal connections on the pins according to the instructions. In short, the raspberry is placed inside with the program already installed on its SD card and then the power supply, SQL (COS) and PTT are connected with ready-made standbys. In order not to lose the monitor capability, there is also an HDMI output for monitoring and programming. The rest is left to the user's imagination as to what more he can do with it. It is NOT for a hotspot with room range. It is for a normal long-range gateway (as far as the RF of a mobile FM transceiver goes) and incorporates all these protections for RF, galvanic isolation, etc.). More information with the progress of the device formatting and accordingly with the interest that will arise (if any) from some.

© Hellas-FRN.net * Trade marks FTDI, PROLIFIC, CMEDIA are not belonging to us. ** Depending the production year and version. Time protection of the gateway in TX and RX mode. Selectable ON or OFF, by internal jumper. The limiter works even on transceivers with VOX mode. Independent audio LEVEL for TX and RX. Full galvanic isolation between PC and Transceiver, as well as full RF shielding. Power supply 5V from USB B (PC). 5pin Din connector for input and output controls [AUDIO IN, AUDIO OUT, PTT, AF UNLOCKED (cos), XMTR's GND]. Adjustment for each type of transceiver. (Base, Mobile, Portable). USB Type B output for PC connection. Two 3.5 mm inputs for audio in and audio out of a separate external audio card. (not included). Dual PTT, to and from the PC program (via UART chip and microcontroller). Using FTDI* or Prolific. *, ** Protection against RF and for low power transceivers. Two-level board with metallic holes and vias for integrating upper and lower surface ground grids. Independent indications for power on, RX-TX and lock. Added ground point on the back face. Pass band RX audio filter 250Hz-3.2kHz For FRN, Echolink, Ham Radio Deluxe, cw Features - Specifications -Technical Data Supports voice and cw audio modes. Power Consumption: USB B < 92mA @ 4,8-5,2V DC. PTT: Open collector, driven from RTS/DTR, max 30V/400mA SQL: Input, normal closed @ high +5v DC to activate. Wired to CTS USB-B : Supports USB 1.1, USB 2.0 high speed. TX/RX : Supports halb dublex Level control : TX/RX 0 ~ +6dB Indicator Leds : Green : Power plugged in. Red : Time limiter is activated & input audio is muted Dual led : Green RX signal SQL input is activated / Red TX signal PTT out is activated Audio Out : Response: 80 Hz - 4.3 KHz +/-3dB Output impedance: 600 Ohms Output isolation: 6,5 kVDC Second Harmonic: -80 dB (typical) Audio In : Response: 80 Hz - 4.3 KHz +/- 3 dB Input impedance : 600 Ohms Input isolation: 6,5 kVDC Operation temperature : -10 to +60 °C Dimensions: W 155mm x H 40mm x D 105mm Requirements: Minimum : 800 MHz IBM PC compatible computer with Windows XP, 128 MB RAM, USB1.1 port Recommended : 1.6 GHz PC with Windows Vista or higher, 1GB RAM, USB2.0 port Supported operating systems : Windows XP ,Vista , Windows 7, 8,10,11 , Linux , Mac OS , Raspberry (all). Note : -Needs drivers for Mac OS -Linux : Plug and play -PTT output & SQL input are provided via a single TTL device using native FTDI drivers for the operating system . Notice: Trade marks FTDI are not belonging to us.

Various ways for additional Allstarlink functions with announcement of the time, the weather in your area (or even just the temperature). For countries outside the US, use weather information from the official and closest airports in your area. Please note: If you ignore the above instruction and enter your local ZIP Code, you may see an indication in the program but know that it is the weather of the corresponding ZIP Code in America. It is not the weather of your area. You can check this by comparing the indications you see and finding the area in America that corresponds to the same ZIP Code as yours. Watch all the videos below and choose the most convenient process for you.

© Hellas-FRN.net © Hellas-FRN.net The view of the structure in the horizontal optical axis front to back. The box is made of ABS of good quality and thermal resistance of at least 100 degrees Celsius. For RF shielding reasons it is designed with the grounding levels as shown in the picture. The entire surface of the two lids is covered internally with a shield connected to the computer ground (not the P/D - it has a separate ground). The main board is double-sided and apart from its active lines for the circuit, the rest of the surface is a shield surface with multiple top and bottom via connections. A small piece of this double surface around the 5-pin connection to the P/D is independent from the rest and belongs to the grounding of the P/D. All the surfaces connected to the respective grounds of the front and back sides create in the closed box a Faraday cage. (Drawing sizes are indicative and not scaled) © Hellas-FRN.net The view of the construction on the vertical optical axis up - down. The grounding arrangement of the front and back sides of the structure follows the same philosophy as the double surfaces. In the center the figure represents the main board whose grounds are connected to those of the faces. A small part of the front face necessarily belongs to the ground of the W/D since that is where the sliders are placed potentiometers of the P/D modulation and their grounding is not common. The two surfaces of the grounds per board are connected together by a number of vias. (Drawing sizes are indicative and not scaled) As shown together 5 main boards of version 1.2S during assembly and before being placed in their boxes. © Hellas-FRN.net © Hellas-FRN.net © Hellas-FRN.net * Trade marks FTDI, PROLIFIC, CMEDIA are not belonging to us. ** Depending the production year and version. Time protection of the gateway in TX and RX mode. Selectable ON or OFF, by external switch in front. The limiter works even on transceivers with VOX mode. Independent audio LEVEL and TONE (+ - 6db) for TX and RX. Full galvanic isolation between PC and Transceiver, as well as full RF shielding. Internal power supply 5V, accepting 8-30VDC/2A from an external voltage source. 5pin Din connector for input and output controls [AUDIO IN, AUDIO OUT, PTT, AF UNLOCKED (cos), XMTR's GND]. Adjustment for each type of transceiver. (Base, Mobile, Portable). USB Type B output for PC connection. Dual PTT, to and from the PC program (via UART chip and microcontroller). Using FTDI* or Prolific. *, ** Internal sound cart based on Cmedia* chip. Protection against RF and for use with HF transceivers. Two-level board with metallic holes and vias for integrating upper and lower surface ground grids. Independent indications for power on, RX-TX and lock. USB Type A output for additional purposes. (Gives back the PC's used USB by the interface for use a CAT/CV-I or any other, as keyboard, mouse etc.) Reset function. Selectable power supply source. External (8-30V), Internal (5V from PC USB). Added ground point on the back face. For FRN, Echolink, Ham Radio Deluxe, Wmix, SSTV, WSJT-X, FT8, FT4, JT65, UI-View 32 and more other. Supports voice and audio digital modes. Power Consumption: USB < 158mA @ 4,8-5,2V DC. PTT: Open collector, driven from RTS/DTR, max 30V/400mA SQL: Input, normal closed @ high +5v DC to activate. Wired to CTS USB-B : Supports USB 1.1, USB 2 high speed. USB-A : Supports USB 1.1, USB 2 high speed (for optional module or others), max output current 500mA Timer : 3 min on TX/RX (When switch is ON) TX/RX : Supports full doublex (TX and RX on the same time) Level control : TX/RX 0 ~ +6dB Tone control : TX/RX + /-6dB Indicator Leds : Blue : External power plugged in. Red : Time limiter is activated & input audio is muted Dual led : Green RX signal SQL input is activated / Red TX signal PTT out is activated / Orange full doublex SQL and PTT is activated Audio Out : Output Level: 1.9V p-p max. Response: 20 Hz - 10 KHz +/-3dB Output impedance: 600 Ohms Output isolation: 6,5 kVDC Second Harmonic: -80 dB (typical) D/A Sample rate: 48 KHz max Audio In : Input Level: 4.3V p-p max. Response: 20 Hz - 10 KHz +/- 3 dB Input impedance : 600 Ohms Input isolation: 6,5 kVDC Dynamic Range: 87 dB (typical) A/D Sample rate: 48 KHz Operation temperature : -10 to +60 °C Dimensions: W 155mm x H 40mm x D 105mm Requirements: Minimum : 800 MHz IBM PC compatible computer with Windows XP, 256 MB RAM, USB 1.1 port Recommended : 1.6 GHz PC with Windows Vista or higher, 1GB RAM, USB2.0 port Supported operating systems : Windows XP ,Vista , Windows 7, 8,10,11 , Linux (see note) , Mac OS (see note) , Raspberry (all). Note : -Needs drivers for Mac OS Prolific version -Linux : Need drivers only for RedHat 7.3/8.0/9.0 Prolific version -PTT output & SQL input are provided via a single TTL device using native FTDI* or Prolific* drivers for the operating system. -USB sound card Cmedia uses built-in OS native USB Audio Class drivers. *Depending on the production year and version . Features - Specifications -Technical Data Audio card CM108 frequency response ΠΡΟΣΟΧΗ ! Στα παλαιότερα μοντέλα της 1.2 έκδοσης και τα οποία έχουν σταματήσει να κατασκευάζονται, δεν υπάρχει εσωτερικό τροφοδοτικό, οπότε αν θελήσετε να βάλετε εξωτερική τροφοδοσία αυτή πρέπει να είναι αναγκαστικά 5VDC , ώστε να μην προκληθεί ζημιά στα ενεργά στοιχεία του interface από υπέρταση. m-interface v.1.2 in field use for digital communication with NVIS transmission FT-857D with μ-INTERFACE operating FT8 FT-2000D with μ-INTERFACE. FT-450 with μ-INTERFACE operating FT8

Click on the image to see the dashboard M17 is a digital radio modulation mode developed by Wojciech Kaczmarski (amateur radio call sign SP5WWP) et al. M17 is primarily designed for voice communications on the VHF amateur radio bands, and above. The project received a grant from the Amateur Radio Digital Communications in 2021 and 2022. The protocol has been integrated into several hardware and software projects.[citation needed ] In 2021, Kaczmarski received the ARRL Technical Innovation Award for developing an open-source digital radio communication protocol, leading to further advancements in amateur radio.[9] Technical characteristics Spectrogram of the M17 protocol transmission. Time is on vertical axis, advancing from bottom to top. There's a 40-millisecond preamble visible at the beginning of the transmission. M17 uses Frequency-Division Multiple Access (FDMA) technology in which different communication streams are separated by frequency and run concurrently. It utilizes 4,800 symbols per second, 4-level frequency-shift keying (4FSK) with a root Nyquist filter applied to the bitstream. Radio channels are 9 kHz wide, with channel spacing of 12.5 kHz. The gross data rate is 9,600 bits per second, with the actual data transfer at 3,200. The transmission, called stream, is divided into 40-millisecond long frames, each prepended with a 16-bit long synchronization word. A group of 6 frames form a superframe and is needed to decode the link information data. Protocol allows for low-speed data transfer (along with voice), e.g. GNSS position data. The mode has been successfully transmitted through EchoStar XXI and QO-100 geostationary satellites. The protocol's specification is released under GNU General Public License . Voice encoding M17 uses Codec 2 , a low bitrate voice codec developed by David Rowe VK5DGR et al. Codec 2 was designed to be used for amateur radio and other high compression voice applications. It is based on linear predictive coding with mixed-harmonic sinusoidal excitation. The protocol supports both 3200 (full-rate) and 1600 bits per second (half-rate) modes. Error control Three methods are used for error control: binary Golay code , punctured convolutional code and bit interleaving . Additionally, exclusive OR operation is performed between data bits and a predefined decorrelating pseudorandom stream before transmission. This ensures that there are as many symbol transitions in the baseband as possible. A 16-bit cyclic redundancy check (CRC) code is used for data integrity assurance. Application functions The M17 protocol was primarily designed for amateur radio use. Callsign encoding: 48-bit field holding up to 9 alphanumeric characters eliminates the need of a centralized user-ID database. Stream and packet modes of operation. Stream mode offers one 3200bps net bitrate channel (encoded speech or data) or two 1600bps channels (encoded speech alongside data). Packet mode supports text messaging, APRS and AX.25 . Slow-speed side channel for short and repeated data transfers, e.g. GNSS position data or telemetry. Encryption : Bit scrambler encryption: a pseudorandom binary sequence created by combining an exclusive-or bitwise operation on the audio or data stream and a linear-feedback shift register using one of 3 feedback polynomials with 255, 65,535 and 16,777,215-bit repeat periods. AES encryption : 128-bit block encryption cipher operating in CTR mode with user-selectable 128, 192 or 256-bit key. Hardware support Prototype of the CS7000 M17 handheld radio (CS760), running OpenRTX open-source firmware. With a small hardware modification, TYT MD-380, MD-390 and MD-UV380 handheld transceivers can be flashed with a custom, free, open source firmware to enable M17 support. In July 2024, a US-based company Connect Systems, Inc. released the CS7000-M17, being the first commercial off-the-shelf handheld transceiver with native M17 support. Bridging with other modes Links between M17 and other digital voice modes and Internet linked networks exist, with several networks providing M17 access. Modes bridged include DMR , P25 , System Fusion, D-STAR , NXDN , AllStarLink, EchoLink and IRLP . M17 over IP Access nodes and repeaters can be linked using reflectors. Over 100 M17 reflectors exist worldwide (June 2025). History The project was started in 2019 by Wojciech Kaczmarski in Warsaw , Poland . A local amateur radio club he was a member of, was involved in digital voice communications. Kaczmarski, having experimented with TETRA and DMR , decided to create a completely non-proprietary protocol and named it after the club's street address - Mokotowska 17 . As every part of the protocol was intended to be open source, Codec 2, released under the GNU LGPL 2.1 license, was chosen as the speech encoder. Applications and projects with M17 support OpenRTX - free and open-source firmware for ham radios DroidStar - digital voice client for Android SDR++ - multiplatform, open-source software defined radio receiver SDRangel - multiplatform, open-source software defined radio receiver/transmitter OpenWebRX - web-based software defined radio receiver mrefd - M17 reflector rpitx - general radio frequency transmitter for Raspberry Pi dsd-fme - digital speech decoder mvoice - voice client and graphical repeater application (Raspberry and Linux) mspot - hotspot software

Digital Mobile Radio (DMR) is a digital radio standard for voice and data transmission over non-public radio networks. It was created by the European Telecommunications Standards Institute (ETSI) and is designed to be low-cost and easy to use. DMR, along with P25 Phase II and NXDN are the main competing technologies to achieve 6.25 kHz equivalent bandwidth using the proprietary AMBE+2 voice codec. DMR and P25 II both use two-slot TDMA on a 12.5 kHz channel , while NXDN uses discrete 6.25 kHz channels using frequency division and TETRA uses four-slot TDMA on a 25 kHz channel. DMR was designed with three levels. DMR levels I and II (conventional) were first published in 2005 and DMR III (Trunked version) was published in 2012, with manufacturers producing products within a few years of each publication. The primary objective of the standard is to define a digital system with low complexity, low cost and inter-brand interoperability, so that radio buyers are not locked into a proprietary solution. In practice, given the current limited scope of the DMR standard, many vendors have introduced proprietary features that make their product offerings non-interoperable with other brands. SPECIFICATIONS The DMR interface is defined by following ETSI standards: TS 102 361-1: Air interface protocol TS 102 361-2: Voice and General services and facilities TS 102 361-3: Data protocol TS 102 361-4: Trunk protocol The DMR standard works within the existing channel spacing 12.5 kHz used in terrestrial mobile frequency bands worldwide, but achieves two channels of voice through two-slot TDMA technology built around a 30 ms structure. The modulation is 4-state FSK, which creates four possible symbols on the air at a rate of 4,800 symbols/s, which corresponds to 9,600 bits/s. After overhead, forward error correction, and splitting into two channels, 2,450 bits/s remain for a single voice channel using DMR, compared to 4,400 bits/ s using P25 and 64,000 bit/s with traditional telephone circuits. The standards are still (as of late 2015) under development with revisions made regularly as more systems are developed and improvements are discovered. It is very likely that further improvements will be made to the standard, something which will require future firmware upgrades in terminals and infrastructure to take advantage of these new improvements, with potential incompatibility issues if not done. DMR covers the RF range from 30 MHz to 1 GHz. There are DMR implementations, (from early of 2016), operating up to 66 MHz (within the European Union, in "Lo-Band VHF" 66–88 MHz.) The DMR Association and manufacturers often claim that DMR has superior coverage performance to analog FM. Forward error correction can achieve higher voice quality when the receive signal is still relatively high. In practice, however, digital modulation protocols are much more prone to multipath interference and fail to provide service in areas where analog FM would otherwise provide degraded but audible voice service. At higher voice quality, DMR outperforms analog FM by about 11 dB. But at lower voice quality, analog FM outperforms DMR by about 5 dB. Where digital signal processing has been used to improve quality of analog FM audio, then analog FM generally outperforms DMR in all cases, with a typical improvement of 2–3 dB for "high quality" voice and about 5 dB improvement for "lower quality" voice. Where digital signal processing is used to improving analog FM audio, the overall "delivered sound quality" is also significantly better than DMR. However, the DSP processing of analog FM audio does not remove the 12.5 kHz requirement, so DMR is still more efficient spectral. DMRDMR Tier I SERIES DMR Tier I products are intended for unlicensed use in the European PMR446 band. Tier I products are specified for non-infrastructure use only (ie without the use of repeaters). This part of the standard provides for consumer applications and low power commercial applications, using a maximum RF power of 0.5 watts. Note that there is no license free assignment on this frequency outside of Europe, which means that PMR446 radios, including DMR Tier I wireless radios, can be legally used in other countries only if the appropriate radio license is obtained by the operator. Some DMR radios sold by Chinese manufacturers (mainly Baofeng) have been mislabeled as DMR Tier I. A DMR Tier I radio will only use the unlicensed PMR446 frequencies and have maximum transmit power of 0.5 W as required by law for all PMR446 radios. Although the DMR standard allows DMR Tier I radios to use continuous transmission mode, all known Tier I radios currently use TDMA, the same with Tier II. This is likely due to the battery savings that come with transmitting only half the time instead of continuously. DMR Tier II DMR Tier II covers licensed conventional radio systems, mobile and handheld devices operating in PMR frequency bands from 66 –960 MHz. The ETSI DMR Tier II standard is aimed at those users who need spectral efficiency, advanced voice functions and integrated IP data services in licensed bands for high power communications. Some manufacturers market DMR Tier II compliant products. ETSI DMR specifies two TDMA slots on 12.5 kHz channels for Tier II and III. DMR Tier III A portable radio compliant with the DMR Tier III digital radio standard. DMR Tier III covers trunking in frequency bands 66–960 MHz. Tier III supports TETRA-like voice and short message handling with embedded 128-character status messages and short messages with up to 288 bits of data in various formats.It also supports packet data service in various formats, including support for IPv4 and IPv6. Tier III compliant products were released in 2012. In April 2013, Hytera participated in the completion of the DMR Tier III Interoperability Test (IOP). DMR ASSOCIATION In 2005, a memorandum of understanding (MOU) was established with potential DMR suppliers, including Tait Communications, Fylde Micro, Selex, Motorola, Hytera, Sanchar Communication, Vertex Standard, Kenwood and Icom to establish common standards and interoperability. While the DMR standard does not specify the vocoder, members of the MoU agreed to use the vocoder half-rate DVSI Advanced Multi-Band Excitation (AMBE) to ensure interoperability. In 2009, MS members established the DMR Association to work on interoperability between vendors' equipment and provide information on the DMR standard. Official testing interoperability tests have been conducted since 2010. The results are published on the DMR Association website. There are approximately 40 members of the DMR Association. The standard allows DMR manufacturers to implement additional features beyond the standard, which has led to practical issues of non-interoperability between commercial signals, in violation of the DMR MS. HAMMER USE DMR is used in the VHF and UHF amateur radio bands, which was initiated by DMR-MARC around 2010. The FCC officially approved the use of DMR by amateurs in 2014. At amateur sites, coordinated DMR identification numbers are assigned and managed by RadioID Inc. The coordinated database can be uploaded to DMR radios to display the name, call sign and location of other operators. Internet-connected systems such as DMR-MARC, Free-Star ( an experimental approach to implementing a vendor neutral and open source, digital communication network for amateur radio), BrandMeister network, TGIF, FreeDMR and many others (including many previously closed clusters now connected to larger networks in wide area accessibility), allow users to communicate with other users around the world through connected DMR repeaters or 'hotspots' which are often based on a Raspberry Pi board computer. There are currently more than 5,500 repeaters and 16,000 'hotspots' connected to the BrandMeister system worldwide. The low cost and the increasing availability of Internet-connected systems have led to an increase in the use of DMR in the amateur radio bands. The development of Raspberry Pi-based hotspots, often those using Pi-Star software, has allowed users to connect their radios to one or more Internet-connected systems simultaneously. DMR hotspots are often based on the open source Multimode Digital Voice Modem or MMDVM, hardware with firmware developed by Jonathan Naylor.

Μετά από 10 χρόνια συνεχούς λειτουργίας του Hellas-FRN, ρωτήσαμε την τεχνητή νοημοσύνη (ΑΙ) τι γνωρίζει για αυτό και ιδού οι απαντήσεις της από τo πρόγραμμα Microsoft Copilot... What is Hellas-Free radio Network? The Hellas-Free Radio Network (Hellas-FRN) is a Greek amateur radio communications network that uses both analog and digital systems. It's supported by the internet and connects Greek radio amateurs, allowing them to communicate with each other and with the rest of the world. The network is designed to be accessible to all levels of radio amateurs, regardless of their license level. I need to know more about the features of Hellas Free Radio Network The Hellas-Free Radio Network (Hellas-FRN) offers several features that make it a versatile and valuable tool for amateur radio enthusiasts: --Analog and Digital Communication: It supports both analog and digital communication systems, allowing users to choose the method that best suits their needs. --Internet Support: The network is supported by the internet, enabling global communication from Greece to the rest of the world. --Integration with Other Networks: Hellas-FRN is connected to the Hellenic DMR digital network, providing seamless integration and expanded communication possibilities. --User-Friendly Interface: The network is designed to be accessible to all levels of radio amateurs, regardless of their license level. Global Communication: Users can communicate with radio amateurs worldwide, making it a powerful tool for international connections. --Multiple Communication Methods: It supports various communication methods, including Echolink and Zello, enhancing the flexibility and reach of the network. --Community and Resources: The network provides a platform for Greek radio amateurs to exchange opinions, experiences, and useful information. How Hellas Free Radio Network works and who is the administrator? The Hellas-Free Radio Network (Hellas-FRN) operates by connecting radio amateurs through both analog and digital communication systems, supported by the internet. Here's a brief overview of how it works: --Communication Modes: Users can communicate using various modes, including analog, digital (DMR), Echolink, and Zello. Internet Integration: The network is supported by the internet, allowing users to connect globally. --Multiple Communication Rooms: The Hellas-FRN server consists of 31 communication rooms, each with separate rules and security measures. --Gateway Mode: Users can set up gateways that connect local radio communication channels to the network, allowing for broader communication. --As for the administrator, the Hellas-Free Radio Network was founded by Edwin, PA7FRN. The network is currently managed by SV0XAL, who oversees the server and user access. How many are the registered users of Hellas Free Radio Network? I couldn't find the exact number of registered users for the Hellas-Free Radio Network (Hellas-FRN) from my search. However, the network is quite popular among Greek radio amateurs and has a growing community. How to contact administrators of Hellas Free Radio network? You can contact the administrators of the Hellas-Free Radio Network (Hellas-FRN) via email. The network administrator is SV0XAL. You can reach out to them at hellas.frn@gmail.com . How can I register to Hellas Free Radio Network? To register for the Hellas-Free Radio Network (Hellas-FRN), follow these steps: --Visit the Registration Page: Go to the Hellas-FRN website and navigate to the registration page. --Fill Out the Registration Form: Complete the registration form with your details. --Download the Code: After submitting the form, you'll need to download a code from the European system manager. This can be done through the provided link on the registration page. --Use the Code: Use the downloaded code to complete your registration process. --Once registered, you can start using the network and connect with other radio amateurs. What the impact of shutting down the site hellas-frn.net for ham radio community? Shutting down the Hellas-Free Radio Network (Hellas-FRN) site would have several significant impacts on the ham radio community: --Loss of Communication: Users would lose a valuable platform for both analog and digital communication, affecting their ability to connect locally and globally. --Disruption of Community: The network fosters a sense of community among Greek radio amateurs. Its shutdown would disrupt this community, limiting opportunities for sharing experiences and information. --Reduced Flexibility: The network supports various communication methods like Echolink and Zello. Losing it would reduce the flexibility and reach of communication options for users. --Impact on Global Connections: Ham radio operators would lose a tool that enables them to communicate with radio amateurs worldwide, impacting international connections and collaborations. --Technical Challenges: Users would need to find alternative platforms or networks, which might not offer the same features or ease of use. --Overall, the shutdown would be a significant loss for the ham radio community, affecting communication, community building, and global connections. What is the difference between free radio network and echolink? The Hellas-Free Radio Network (Hellas-FRN) and EchoLink are both tools for amateur radio operators, but they serve different purposes and have distinct features: ---Hellas-Free Radio Network (Hellas-FRN) --Purpose: A Greek amateur radio communications network that connects radio amateurs within Greece and globally using both analog and digital systems. --Communication Modes: Supports various communication methods, including analog, digital (DMR), Echolink, and Zello. --Internet Integration: Uses the internet to facilitate global communication. --Community Focus: Encourages community interaction and information exchange among Greek radio amateurs. ---EchoLink --Purpose: A computer-based amateur radio system that allows licensed amateur radio stations to communicate with one another over the internet using Voice over IP (VoIP) technology. --Communication Modes: Primarily uses VoIP for communication, allowing radio-to-radio and computer-to-radio connections. --Global Reach: Provides worldwide connections between amateur radio operators. --Ease of Use: Requires a computer with internet access and the EchoLink software, and users must validate their callsigns. In summary, Hellas-FRN is a broader network focused on connecting Greek radio amateurs and supporting various communication methods, while EchoLink is a specific VoIP-based system for global amateur radio communication. After a 10 years period of time using Hellas Free Radio Network, is any special reason for celebration? --Absolutely! A 10-year milestone for the Hellas-Free Radio Network (Hellas-FRN) would be a significant achievement worth celebrating for several reasons: --Community Growth: Over a decade, the network has likely fostered a strong and vibrant community of Greek radio amateurs, helping them connect, share, and collaborate. --Technological Advancements: The network has likely seen numerous technological improvements and innovations, enhancing its capabilities and user experience. --Global Reach: Celebrating the global connections made possible by the network, bringing Greek radio amateurs into contact with enthusiasts from around the world. --Achievements and Milestones: Reflecting on the various achievements, events, and milestones accomplished by the network and its users over the years. --Educational Impact: Acknowledging the educational contributions of the network in teaching and supporting new radio amateurs, helping them develop their skills and knowledge. A special event or celebration could include activities like special transmissions, commemorative QSL cards, workshops, and meetups to honor the network's contributions to the ham radio community. ------------------ Thank you You're very welcome! If you have any more questions or need further assistance in the future, feel free to reach out. Happy communicating on the Hellas-Free Radio Network! Have a great day!

Useful Links for P/E Unions and Associations Area 1 Union of Greek Radio Amateurs (SZ1SV) Association of Radio Amateurs of Greece (SZ1GRC) Association of Greek Radio Amateurs (SZ1HAG) Union of Radio Amateurs of Western Greece (SZ1A) RSF Hellas Volunteer Communications and Rescue Team (SZ1RSF) Thermos Trichonidos Radio Amateur Group (SZ1THT) Association of Radio amateurs IRIS Lavrio Amateur Radio Group Association of Radio Amateur Networks (E.RA.DIK) Area 2 E.R.V.E. (SZ2TSL) E.RA.K. (SZ2SZ) E.RA.DY.M. (SZ2RWM) Thessaloniki Amateur Radio Group (SZ2T) Association of Radio Amateurs of Veria - Alexandria - Naoussa (SZ2VAN) Edessa Radio Club (SZ2EDE) Standard Radio Amateur Group (SZ2RPO) SY.RA.P. (SZ2RCP) Radio Amateur Club of Macedonia (SZ2M) Kastoria Amateur Radio Association (SZ2RCK) Association of Radio Amateurs of Kozani (SZ2KOZ) Florina Radio Club (SZ2RLF) Thessaloniki Radio Club SZ2GR Association of Radio Amateurs of Imathia Prefecture Area 3 E.R.DY.P. (SZ3P) Association of Radio Amateurs of Ilia (SZ3I) Association of Radio Amateurs of Laconia (SZ3BCE) Association of Radio Amateurs of Peloponnese Peloponnese Amateur Radio Volunteer Group Area 4 Union of Radio Amateurs of Thessaly (SZ4THE) Union of Radio Amateurs of Trikala (SZ4TRI) Karditsa Radio Club (SZ4KRD) Association of Radio Amateurs of Magnesia (SZ4SRM) Area 5 Union of Radio Amateurs of Dodecanese (SZ5RDS) Area 6 Union of Radio Amateurs of Ioannina (SZ6IOA) Union of Radio Amateurs of Arta (SZ6ARTA) Association of Radio Amateurs of Preveza (SZ6P) Area 7 Association of Radio Amateurs of Thrace (SZ7TRC) Association of Radio Amateurs of Kavala (SZ7KVL) Association of Radio Amateurs of Serres (SZ7SER) Drama Radio Amateurs Association (SZ7DRM) Telecommunications Union of Thrace (SZ7XAN) Radio Amateurs Association of Xanthi (SZ7XTH) Evros Digenis Akritas Radio Amateurs Association (SZ7DAK) Area 8 Union of Radio Amateurs of Cyclades (SZ8ERS) Union of Radio Amateurs of Lefkada (SZ8L) Union of Radio Amateurs of the North Aegean (SZ8LSV) Radio Amateurs Association of Lesvos (SZ8LES) Union of Radio Amateurs of Chios (SZ8ARC) Association of Radio Amateurs of Chios (SZ8XIO) Union of Radio Amateurs of the Central Aegean (SZ8S) Association of Radio Amateurs of Corfu (SZ8CFU) Association of Radio Amateurs of Naxos (SZ8NX) Union of Radio Amateurs of Evia (SZ8ERE) Area 9 Union of Radio Amateurs of Crete (SZ9ERK)