On 4/25/2020 12:33 PM, w5ccl via groups.io wrote:
Now, don't laugh but does anyone know if a control program has been developed for the ftm-400xdr and ui-view32 as was done for the tm-D710?
Charles
1)??? There never was any UIview "control program" for the D710 or any other radio.? There were simple text files to initialize external TNCs or the TNCs built into some radios like the D700 or D710.
2)??? All Yaesu radios? that "do APRS" (including the FTM-400) have what I consider a fundamental flaw in their implementation: Unlike the Kenwood APRS radios, they DO NOT provide full access to,? or control of,? the internal TNCs/modems of the radio by external programs like UIview.
You can conduct APRS activities from the radio's front panel. This includes beaconing? positions, displaying received positions from other stations (in text form -- not on a map),? and receiving and sending APRS messages (if you really want to compose messages on a small "glass keyboard" touch screen on the control head). This all functions in a manner similar to a Kenwood D700 or D710 running standalone in "APRS" mode.
There is a limited capability for an external program to monitor what the TNC hears on receive, but no way to transmit standard AX.25 packets from an external program.?? The full serial data send/receive capability of the radio's internal modem, for external applications, is limited to the C4FM digital side of the radio.
Page 158 of the manual? discusses "Packet Communications".? It describes a hookup using an EXTERNAL TNC, just like any other non-APRS radio. The diagram shows a specialty cable from Yaesu that creates the standard female 6-pin mini-DIN "data port" jack at the end of a foot-long cable plugged into the highly non-standard-pinout? 8-pin min-DIN jack on the back of the radio.?? Note that the so-called 6-pin min-DIN "data" port is actually transmit and receive audio, and PTT -- not serial data to/from a TNC.
3)??? BOTTOM LINE:?? To make this radio work with UIview, you will need an external hardware TNC, -OR-? a soundcard interface and an application on the PC like the "UZ7HO Soundmodem" or "DireWolf" that turns the computer's sound card into a? software TNC.?? (On a decent soundcard, the soft TNCs will vastly outperform any hardware TNC on weak or noisy signals.)
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Stephen H. Smith??? wa8lmf (at) aol.com
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