7/29/2023 0 Comments Fldigi baofeng rig xmlBridge the central pad to RTS pad using the ball of solder as shown above. Use continuity tester to verify the pads are no longer connected. Make sure to contain the cut strictly between the pads because there are traces nearby that can be unintentionally damaged. To switch Digirig to hardware PTT, carefully cut the trace connecting central pad to the TXD pad. Using the solder jumper on the back of the PCB, the interface can be configured to trigger PTT line using RST signal of its serial interface. many Yaesu HTs) and other types of dual connectors (FT-65R, ICOM HTs).īy default Digirig 1.5 is configured to communicate with a CAT-capable radio over the serial interface. Premade Digirig 1.6+ cables are available for popular HTs featuring K1 connector (Baofeng, Kenwood etc.) as well as cables for radios using a single 3.5mm TRRS connector (e.g. This makes it simple to interface basic handhelds and mobile transceivers via a single connection while keeping advanced rig control options available for more capable equipment. The CAT configuration is not required and interface in any CAT configuration can be used with the HTs. Electrical connections for Digirig Revisionsĭigirig 1.6 and newer revisions have the audio and PTT permanently available on the audio socket independently from the serial port. PTT control configuration is optional in cases where transmitting is not required, for example when receiving SSTV from satellites. The baud rate and other port settings are not relevant for RTS control. The port selection must match the COM port number contributed by Digirig. Make sure that serial port’s flow control features are turned off. To activate this feature look for PTT section in the software settings and select RST as the source. This is a better method than VOX-based PTT implementations because the software can time the transmissions exactly without the need to adjust the trigger delays for each digital mode. Digirig can control this hardware PTT line via the RTS signal of the serial port. Most budget VHF/UHF radios and HTs do not support serial CAT capability, but they all have a hardware PTT line which switches radio to transmission when connected to ground. In principle, this works similar to the old fax machines or dialup modems which used the existing analog phone line with its limited bandwidth to transmit the digital information in form of sounds. Digirig links two sides together by acting as a dedicated USB sound card for the radio as well as allowing computer to control the transmit and receive cycles. The computer runs one of the apps (Winlink, WSJT-X, JS8Call, Fldigi, SSTV/Yoniq etc) which generates and interprets audio signals for the radio to send and receive. Today we are talking about interfacing a regular computer such as laptop PC or Raspberry Pi (bits and bytes side) to a regular analog radio (beeps and boops side). It’s easy to get confused by the lingo of digital modes and not without a reason – “digital radio” label can mean anything from digital frequency display to complete end-to-end digital systems such as DMR, D-star and Fusion. other existing and future digital modes over line-of-sight VHF/UHF connection.quick local QSOs using FT8 and FT4 (not common over FM).remote internet-like connectivity via Echolink, Allstar etc.location and weather reporting via repeaters and satellites using APRS.images from terrestrial hams and from the satellites using SSTV.messaging for fun and preparedness using JS8Call and Winlink.When the rosin smoke clears we’ll be able to enjoy: For that I thank them.įor maximum controversy we are combining all of the above with the help of Digirig. For that I thank them.Īh, the digital modes… Not the “real radio” according to some, but a great way for the computer enthusiasts to get interested in everything ham related and for the introverts to log some QSOs without hearing about prostate exams. Ah, the Baofengs… Not the finest equipment the money can buy, but there is no denying that they make it easier to get into the amateur radio without selling your kidney.
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