We also decided to integrate the "audio part", in this case we used the excellent PCM2904. Compared to its predecessors, the chip integrates an EEPROM, a clock circuit and the resistances necessary for the USB section, these features allow you to simplify the circuit by reducing its size.
INTERFACE RTTY SERIAL
To satisfy this need, the FT232RL chip came in handy it is a USB / Serial converter produced by FTDI. Of course this must be done in a simple way and without particular complications. The cat modules are inserted perpendicularly to the board, using the 2.54 pitch strip connectors on the right side.Technical featuresThe fact that for some years now the serial ports of computers have been replaced by the most modern usb ports, has led us to study new solutions to allow radio amateurs to easily use digital modes even with modern computers. A further innovation consists in the fact that it has provided the possibility to manage "mini modules", intended for radio control (cat control). The fact of having integrated the audio part, gives the product high reliability and remarkable versatility. To achieve the goal, we made sure that it incorporated the most important functions, in order to satisfy a wide range of users ranging from the novice to the expert operator.
![interface rtty interface rtty](https://www.dxzone.com/dx32863/rtty-afsk-interface-for-android-phone-or-tablet.jpg)
PresentationWe thought of creating an interface for radio amateurs for digital transmissions, which was simple but at the same time innovative and in step with the times.
![interface rtty interface rtty](https://i.pinimg.com/736x/81/69/69/816969d24233a5ad95049f1a6aa72ab4.jpg)
Item: 164106876878 Interface for digital transmissions with integrated audio - RTTY PSK31 FT4, FT8.
![interface rtty interface rtty](https://raw.githubusercontent.com/4x1md/phone_rtty_interface/master/docs/images/phone_rtty_mosfet.png)
Refer to for more details on this excellent piece of software.Seller: ucchinoproduzionielettroniche ✉️ (911) 100%,
INTERFACE RTTY FULL
This software allows the antenna to be pointed by mouse click on the Azimuth graphic area (compass rose), by using the left and right keyboard arrows, by setting the azimuth, by setting the QTH locator (4, 6 or 8 digits), by mouse click on a map, by selecting the DXCC entity or by typing a prefix or full callsign. The interface has a USB audio system for TX and RX audio that is accessible through the USB cable, and a two-channel USB serial device that enables various transmit modes.Īntenna azimuth control is performed by the P stRotatorAz program from Buda, YO3DMU. A Yaesu SCU-17 USB interface is used to connect the main station computer with the FTDX 1200 station transceiver RTTY/Data port. These days I use the Digital Master (DM-780) component in HRD for operation on digital modes such as RTTY and PSK31. Home brew microcomputers running operating systems like CP/M and some elementary software soon replaced the teleprinters. In fact, when I was first licensed, I used teleprinters and terminal units for Radioteletype (RTTY) operation.
![interface rtty interface rtty](https://raw.githubusercontent.com/4x1md/phone_rtty_interface/master/docs/images/trrs_conn_cable.jpg)
I have always had an interest in the digital modes of operation. I use Microsoft SQL Server as the back-end relational database for the HRD logbook to provide a more robust system with better concurrent access from other workstations and applications. I routinely reconcile records in the local logbook with the ARRL Logbook of the World (LoTW) and the Electronic QSL Card Centre () to record details of all confirmed contacts. I use the Logbook component in HRD for all station contact record keeping. The RT Systems USB-63 cable is used for CAT control as it is required for use with the RT Systems FTDX 1200 Programmer software.
INTERFACE RTTY WINDOWS 8.1
The Rig Control component of HRD allows for the organization of buttons sliders, and drop-downs to toggle radio options, select modes and filter settings, and control various level inputs via the main station computer (HP Envy 23) running 64-bit Windows 8.1 Pro. HRD provides an interface that can be customized to control the main station transceiver using the Computer Aided Transceiver (CAT) interface. Ham Radio Deluxe (HRD) provides the basis for all computer-aided operation in my amateur radio station.