Cannot transmit with D700a using TNC PKT
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Joseph LaFerla
I am trying to use my d700a with yaac or another aprs program to receive and transmit aprs packets. Everything is set correctly and I can receive packets correctly. However I cannot transmit. The software is set up correctly but my beacon does not get transmitted, neither can I transmit if I hit the transmit button. Is there some special setting that I have to set in my radio to enable transmission of packets? This is only apparently a problem if I use the built-in tnc because if I connect an external tnc everything works fine.
I would appreciate any help to get me going. Thanks in advance. Joe VA3JLF
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David Ranch
If you connect to the TNC via the COMMAND interface, can you successfully transmit a BEACON or other packet? --David KI6ZHD
On 09/25/2020 10:50 AM, Joseph LaFerla
wrote:
I am trying to use my d700a with yaac or another aprs program to receive and transmit aprs packets. Everything is set correctly and I can receive packets correctly. However I cannot transmit. The software is set up correctly but my beacon does not get transmitted, neither can I transmit if I hit the transmit button. Is there some special setting that I have to set in my radio to enable transmission of packets? This is only apparently a problem if I use the built-in tnc because if I connect an external tnc everything works fine.
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Dave, W8AAS
When I can't transmit packets, it is usually because I left the squelch open and the DCD setting prevents transmission. It thinks the channel is busy.
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R. Patrick Ryan
Joe I understand When you want to use the TM-D700 internal TNC, you must switch from APRS mode to PKT mode on the radio. Then power off the radio and controlling computer, connect the data cable to both, then power up the computer. Power up the radio as you load the program of choice, preferably a simple terminal program. The internal TNC might not be in Command mode, so type and send <CTRL C> to TNC to ensure it is in command mode. Type DISPlay command . The TNC should respond with the TNC Command list and current settings for each command, Type MYCall with a space then your Callsign followed with return key to enter FYI after this, send the letter "k" to switch TNC to Converse mode and send "test" while watching radio display for transmit. If this does not work (radio transmits), you may have a setting on serial flow control wrong in your computer, or a bad cable. 73 de Pat R. Patrick Ryan ARS: KC6VVT, Grid: EN51lf, email: kc6vvt@... Facebook for ham related: http://www.facebook.com/KC6VVT/info
On Fri, Sep 25, 2020 at 12:50 PM Joseph LaFerla <joe@...> wrote: I am trying to use my d700a with yaac or another aprs program to receive and transmit aprs packets. Everything is set correctly and I can receive packets correctly. However I cannot transmit. The software is set up correctly but my beacon does not get transmitted, neither can I transmit if I hit the transmit button. Is there some special setting that I have to set in my radio to enable transmission of packets? This is only apparently a problem if I use the built-in tnc because if I connect an external tnc everything works fine.
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Joseph LaFerla
HI Dave
I tried to close the squelch but no luck. Still cannot transmit. Should the packet TXC setting be manual or auto?
Joe
Sent from Mail for Windows 10
From: Dave, W8AAS
Sent: September 25, 2020 2:52 PM To: TMD700A@groups.io Subject: Re: [TMD700A] Cannot transmit with D700a using TNC PKT
When I can't transmit packets, it is usually because I left the squelch open and the DCD setting prevents transmission. It thinks the channel is busy.
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Joseph LaFerla
Correction Dave, you were right. closing the squelch did it and enabled me to transmit!! Thanks and what a simple thing to do!!!
Joe VA3JLF
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Are you using Linux or Windows?
Have you setup the menu to use 1200 B? Are you trying this on your voice side of the radio? That could be one reason why it won’t PTT.
73
Don
VA7DGP Data VA7QU Voice
Subject: /wl2k
From: TMD700A@groups.io <TMD700A@groups.io> On Behalf Of Joseph LaFerla
Sent: Friday, September 25, 2020 10:51 AM To: TMD700A@groups.io Subject: [TMD700A] Cannot transmit with D700a using TNC PKT
I am trying to use my d700a with yaac or another aprs program to receive and transmit aprs packets. Everything is set correctly and I can receive packets correctly. However I cannot transmit. The software is set up correctly but my beacon does not get transmitted, neither can I transmit if I hit the transmit button. Is there some special setting that I have to set in my radio to enable transmission of packets? This is only apparently a problem if I use the built-in tnc because if I connect an external tnc everything works fine. -- Don VA7DGP/VA7QU
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Joseph LaFerla
Hi Don
Thanks for this. Actually as per my other post, I solved the problem, my squelch was open and the DCD sense was stopping the transmit. Sillly thing!
Joe VA3JLF
Sent from Mail for Windows 10
From: Don Poaps
Sent: September 25, 2020 4:17 PM To: TMD700A@groups.io Subject: Re: [TMD700A] Cannot transmit with D700a using TNC PKT
Are you using Linux or Windows?
Have you setup the menu to use 1200 B? Are you trying this on your voice side of the radio? That could be one reason why it won’t PTT.
73
Don
VA7DGP Data VA7QU Voice
Subject: /wl2k
From: TMD700A@groups.io <TMD700A@groups.io> On Behalf Of Joseph LaFerla
I am trying to use my d700a with yaac or another aprs program to receive and transmit aprs packets. Everything is set correctly and I can receive packets correctly. However I cannot transmit. The software is set up correctly but my beacon does not get transmitted, neither can I transmit if I hit the transmit button. Is there some special setting that I have to set in my radio to enable transmission of packets? This is only apparently a problem if I use the built-in tnc because if I connect an external tnc everything works fine.
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