Easyterm for windows a communications program for aea and kantronics tncs sound card packet by kc2rlm. You see a lot of guides using xastir for their aprs software, but i recommend using direwolf for your software tnc, and then yaac for you guimaps program. Hamware means free for use by radio amateurs as part of their hobby. I am developing a software dualport packetradio tnc that uses a soundcard as a modem and supports ax. Aprs messenger is capable of supporting both the sound card modes on hf, and a second hf or vhf tnc, either hardware or software i. It can also be used as a virtual tnc for other applications such as aprsis32, uiview32, xastir, aprs. The kenwood ts2000 shackinabox base transceiver also has builtin tnc. If, however, you simply want a working sound modem to interface with xastir for aprs, then select the kiss mode without the m. If u use a cheap usb sound card like mine you need a hardware ptt circuit or a usb serial cable and hamlib for transceiver control. For transmitting cw, the program encodes keystrokes from the computers keyboard. This video shows the qtmm soundcard modem receiving local aprs traffic on 144. An alternative to using a tnc is software that uses your sound card as a modem.
An aprs client program, sound card software, a simple interface and your 2m fm radio are all you need to set up your home based aprs igate. This amateur radio web site explains how to use the agwpe utility program to send and receive packet using the sound card of your pc instead of a tnc. It can also be used as a virtual tnc for other applications such as aprsis32, uiview32, xastir, aprstw, yaac, uiss, linux ax25, and many others. I only found the hiss noticeable with the volume slider on my headset set to 90100%. I started with a software modem program called agwpe, which runs under windows. Incorporates generator, oscilloscope, audio spectrum analyzer fft and frequency sweep characteristic. This is all you need if you just want to listen to aprs messages, which is what im focussed on with this example.
At this point its nice to have the model b with two usb ports and internet coming in through the ethernet jack. A cat civ interface is required if you want to control your radio, but it is not required for digital operation see digital master 780 below. Be sure to see our instructions for configuring your communication program. It can be used standalone to receive aprs messages, as a digipeater, aprstt gateway, or internet gateway igate. It must be running before uiview or other software that requires it is opened. Ham radio deluxe is a suite of programs providing cat control and digital sound card operation. If you are just interested in tracking the position of something yourself, a balloon or whatever then you can buy a ready to use aprs tracker such as the byonics microtrak 300 consisting of a controller, modulator and transmitter. If you havent done so already, shut down your pi and plug in your usb sound dongle. How to set up aprs using a soundcard tulsa digital radio. It can be used standalone to observe aprs traffic, as a tracker, digipeater, aprstt gateway, or internet gateway igate in the early days of amateur packet radio, it was necessary to use an expensive terminal node controller tnc with specialized.
The igate works very nicely and ports a lot of traffic to aprs. The round radio buttons in the transmit area to the right of the waterfall display allow you to choose which bandmode to transmit on, when sending a message. Aprs is one of several amateur radio digital modes specialized for position telemetry from a gps automatic packet reporting system historical name automatic position reporting system aprs is similar to packet radio in that it also uses the ax. Astars and this page began in the mid90s with the first amateur packet radio relay satellites and experiments on the iss and mir and ultimately other amateur satelltes listed below. Install the sound card interface turn on the computer after the computer boots then turn on the radio. Most of us beacon station text at the default 30 minutes.
This software is the packet sound card engine required by uiview aprs software and. Unlimited trial means that you can use the program and register only if you can afford it. Software for packet radio use category is a curation of 32 web resources on, packetcluster dx statistics, winafsk, linpac packet radio terminal. Dire wolf is a software soundcard modemtnc and aprs encoderdecoder. There are a couple of software applications out there that allow you to use a sound card in a pc, along with one of the leads on either a com port, or a printer port to toggle transmit, to send data, including aprs packets, via a radio that does not have a port for a tnc adapter. Use of one of these transceivers simplifies the setting up of an aprs station. The standard kiss option is probably safest if you just want a basic sound card modem as it requires less configuration.
Without sidechannel, the sound card will still hiss if you have very low impedance headphones. Looking for a usb sound card that works with aprs virtual. Hfpacket and uhfpacket ax25 are supported in kisstnc emulation mode. Hams use mrp40 to send and read qrq highspeed cw, to help. Dire wolf updated dire wolf is a software soundcard modem and aprs encoderdecoder. A brief description of what aprs is and how it can be used.
Now it can be compiled and works under linux, windows and macos. The addition of another cable or two between sound card and radio and a little software tweaking would give the station full digipeater capability. If you do go with yaac, ive found it better to run yaac on a more powerful. Decoding aprs traffic with qtmm soundcard modem youtube. Rtty software, digital mode ham radio amtor, psk31, ax25.
It can be used standalone to observe aprs traffic, as a digital repeater digipeater, aprstt gateway, or internet gateway igate. Soundcard interface for aprspacket happy 4th of july to all of my american visitors and also to everyone else, although i dont imagine that it is quite the same. Aprs database access there is a web page that will show the latest weather reports for the weather stations nearest a location. The sound card actually the computers onboard sound card serves as the packet modem for decoding the incoming beacons. If we dont have the program that you are using listed, then be sure to see the general setup section as it applies to all sound card programs. Mrp40 is a powerful and highlyeffective ham radio software program that decodes received cw audio that has been fed to a computers sound card. With your usb sound card plugged in, you can now issue the following command. Low cost options that will allow you to try aprs without spending a lot of cash. The decoded text is displayed on the computers monitor. The soundmodem has two tcpip interfaces to link with client application. Aprs uses 1200 baud and a serialparallel port for ptt. This software is the packet sound card engine required by uiview aprs software and some other sound card software.
It can be used to decode packet radio, aprs and telemetry from amateur radio satellites. N0call should be changed to your callsign, with the ssid of your aprs station after it. Hamshareware means that if you can afford it, pay for the program otherwise just use it. Packet goldmine software by the hundreds from hams net. Since we are using the sound card, you must disable the audio announce feature of uiview under the options menu i believe. Agwpe freeware for aprs message receipt and display. When you operate packet radio not aprs using a soundcard or a tnc in the kiss mode there is no capability to use your station as a digipeater. Astars stands for aprs satellite tracking and reporting system and refers to digital relay satellites and the global aprs internet linked system of ground stations that tie it all together into full time 247. While this capability is built into most tncs it will not function in kiss mode.
The ideal implementation would be entirely in software on a pc using only the sound card input to listen to the aprs channel and then sound card output to send the dtmf. Supported modes are rtty baudot code, ascii 7 or 8 bits, psk31 bpsk and qpsk, bpsk63, qpsk63, bpsk125, amtorfec sitorb, navtex, multifsk16, multifsk8. It has been tested on windows xp, vista, 7, 8, 10 and has proved stable in operation. Sound card, tick shift and type in your crystal frequency in hz. Packet radio mit soundkarte aprs, satellitenfunk, winlink teil 2. Its been a few days since i posted anything, so i wanted to get this up on the site. Raspberry pi, direwolf, digipeater, igate, soundcard version. While not directly aprsis capable, it sets the standard for aprs packets. It can be used standalone to observe aprs traffic, as a digipeater, aprstt. Messages shorter messages in aprs are sent over the air as a series of alternating tones. Install and setup agwpe according to the instructions mentioned above. Truetty version history downloads and registration a program for amateur radio digital communications via a sound card.
Determine the sound cards device address on your sound card. Packet and aprs belong to the large family of digital modes. But we have several digis in the area and i dont see a need to add another one. Install the sound blaster software that comes with the sound card 2. Automatic packet reporting system or aprs is an extremely helpful tool that. If you use a signalink usb sound card with vox for ptt you dont need to install hamlib.
For example 40m 7040000 you would type the exact frequency. Discussion qtmm is a simple afsk1200 decoder that uses the computers sound card for input. What equipment do i need to get on aprs using a sound card. Audio measurement system multiplatfrom system for audio measurement through sound card in the pc. You just need a patch cable from the speaker out of the radio to line in on your sound card.
The sound card in the computer can be used along with free software to make and decode messages. Although it does not attempt to provide support for other sound card packet programs, it has general information which is applicable to all sound card packet operations. Not that i have that many visitors from anywhere, but its the thought that counts. Nets and things tulsa digital radio club would be pleased to have ya on their sunday evening roundtables. Here is an album of my hampiii, but this photo in particular shows the sound card and the easydigi. It can be used standalone to observe aprs traffic, as a tracker. Setting up an aprs igate hiwaay informationinternet.
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