Re: Single-ended audio output (MIC/SP)?
David,
Have you considered isolating the audio circuit with a small transformer much like they do for digital interfaces?
The secondary to the amp will not short out the TX-500 because the 2 winding are only magnetically coupled.
73
Glen
N9FBG
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Any success with TX-500 firmware update from linux.
Hi All, just joined the group.
I have a Lab599 TX-500 that I received last year when they finally started shipping.
I am trying to use the linux update software to update the firmware, but failing.
The downloaded app does not seem to open at all. I have set it to being executable. I cannot figure out what I am doing wrong. It is in my downloads directory and when I try to run it, nothing happens.
So has anyone successfully used linux to update the firmware on their TX-500, and if you did, what exact steps did you take to get it to work? I have the digital cable and that is known to work with digital programs on the Raspberry Pi.
I am using Ubuntu 16.04 if that is needed information. I don't have a windows computer to use for this.
Any help would be greatly appreciated and perhaps a step-by-step detailed procedure could be worked out for us linux users.
Thanks in advance,
Michael
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Single-ended audio output (MIC/SP)?
The MIC/SP connector provides speaker output in balanced form (rather than single-ended form); although I've not measured it, I assume this is due to biasing both SPEAKER+ and SPEAKER- to DC midpoint, hence why the manual states "Do not connect a speaker to ground, pin 6."
How can I safely (that is, complying with LAB599's statement above) drive a single-ended external audio output device from the TX500?
I bring several receivers together in single-ended fashion (grounds tied together, signals through potentometers which go to a summing junction then to an external audio amplifier.
Can (for example) SPEAKER- be tied to ground through a capacitor (470 uF, 16V or something else typically used as a DC block for single-ended audio output?)
Thanks for any advice or precautions.
Dave
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Re: Building a Digital Mode Data Interface Cable
Thanks for all the great info in this thread! Will be filing away that aluminum enclosure for future projects.
I have a couple of follow up questions
1.?I have an XGGcomms Digimode 4 that has both audio and serial CAT out and only uses one USB port. The one I have is wired for the Xiegu G90 but I could modify it. Will the TX-500 work with this type of serial interface?
2. The ZLP Minipro SC has a DTR pin for PTT. I like that as it avoids fiddling with VOX. Another poster showed a diagram that uses this PTT method but it is undocumented on the Lab599 documents. Is there an authoritative source for all the pin outs on the REM/DATA port? And the CAT port for that matter?
This has been a great help, thanks again!
Sent from ProtonMail for iOS
On Wed, May 12, 2021 at 11:10, Steven J. Hlibichuk < sjhlibichuk@...> wrote: Thanks for the link!
This is the same box that DigiRig uses. I just ordered one of these. I will report on how it works with the rig once it is in and I have had a chance to play around.?
73, de Steve W0ARK
On Tue, May 11, 2021, 12:40 PM Glen Jenkins WB4KTF < wb4ktf@...> wrote: Hi all,
I just built an Interface cable for the Audio Data Cable and included amplifier keying.? The amp is a MX-P50A with manual band switching (gives about 40W output).
This interface is all built inside a 1"x1"x2" long aluminum enclosure that I got on Amazon.
I used a 4 conductor shielded audio cable and also installed 6 ferrite beads inside the visible heat shrink tubing near to the GX-12 connector.
The 10uF capacitor is inside the small enclosure.
I did use three stereo audio jacks instead of plugs (also from Amazon).
I attach two photos for your information.
Glen - WB4KTF, Austin, TX USA
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Re: Building a Digital Mode Data Interface Cable
Thanks for the link!
This is the same box that DigiRig uses. I just ordered one of these. I will report on how it works with the rig once it is in and I have had a chance to play around.?
73, de Steve W0ARK
On Tue, May 11, 2021, 12:40 PM Glen Jenkins WB4KTF < wb4ktf@...> wrote: Hi all,
I just built an Interface cable for the Audio Data Cable and included amplifier keying.? The amp is a MX-P50A with manual band switching (gives about 40W output).
This interface is all built inside a 1"x1"x2" long aluminum enclosure that I got on Amazon.
I used a 4 conductor shielded audio cable and also installed 6 ferrite beads inside the visible heat shrink tubing near to the GX-12 connector.
The 10uF capacitor is inside the small enclosure.
I did use three stereo audio jacks instead of plugs (also from Amazon).
I attach two photos for your information.
Glen - WB4KTF, Austin, TX USA
|
Re: Building a Digital Mode Data Interface Cable
Thanks for the link, very nice project box.
On Wednesday, May 12, 2021, 06:29:34 AM PDT, Glen Jenkins WB4KTF <wb4ktf@...> wrote:
Hi,
Here is a link to the enclosure that I used.
Glen - WB4KTF, Austin, TX USA
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Re: Building a Digital Mode Data Interface Cable
Hi,
Here is a link to the enclosure that I used.
Glen - WB4KTF, Austin, TX USA
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Thanks for the update Henry.?
73
On Tuesday, May 11, 2021, 4:12 PM, Henry Pollock - K4TMC <kilo4tmc@...> wrote: John,
Congratulations on getting a TX-500.? The last I heard about the battery was on the March 1 Lab599 twitter feed.? There was no announced release date for the battery.? Hopefully it will be available soon.
73, Henry - K4TMC
I just received the TX-500 today, any word about when the battery pack option will be available?
73
John W9QP?
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John,
Congratulations on getting a TX-500.? The last I heard about the battery was on the March 1 Lab599 twitter feed.? There was no announced release date for the battery.? Hopefully it will be available soon.
73, Henry - K4TMC
I just received the TX-500 today, any word about when the battery pack option will be available?
73
John W9QP?
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Re: Building a Digital Mode Data Interface Cable
Great work! Clean and neat. I too am interested in that box. Can you please provide the link?
de Steve W0ARK
On Tue, May 11, 2021, 12:48 PM Henry Pollock - K4TMC < kilo4tmc@...> wrote: Glen,
Thanks for the pictures.? Can you provide the link to that aluminum box?? I need it for another project.
73, Henry - K4TMC
On Tue, May 11, 2021 at 2:40 PM Glen Jenkins WB4KTF < wb4ktf@...> wrote: Hi all,
I just built an Interface cable for the Audio Data Cable and included amplifier keying.? The amp is a MX-P50A with manual band switching (gives about 40W output).
This interface is all built inside a 1"x1"x2" long aluminum enclosure that I got on Amazon.
I used a 4 conductor shielded audio cable and also installed 6 ferrite beads inside the visible heat shrink tubing near to the GX-12 connector.
The 10uF capacitor is inside the small enclosure.
I did use three stereo audio jacks instead of plugs (also from Amazon).
I attach two photos for your information.
Glen - WB4KTF, Austin, TX USA
|
I just received the TX-500 today, any word about when the battery pack option will be available?
73
John W9QP?
|
Re: Building a Digital Mode Data Interface Cable
Glen,
Thanks for the pictures.? Can you provide the link to that aluminum box?? I need it for another project.
73, Henry - K4TMC
On Tue, May 11, 2021 at 2:40 PM Glen Jenkins WB4KTF < wb4ktf@...> wrote: Hi all,
I just built an Interface cable for the Audio Data Cable and included amplifier keying.? The amp is a MX-P50A with manual band switching (gives about 40W output).
This interface is all built inside a 1"x1"x2" long aluminum enclosure that I got on Amazon.
I used a 4 conductor shielded audio cable and also installed 6 ferrite beads inside the visible heat shrink tubing near to the GX-12 connector.
The 10uF capacitor is inside the small enclosure.
I did use three stereo audio jacks instead of plugs (also from Amazon).
I attach two photos for your information.
Glen - WB4KTF, Austin, TX USA
|
Re: Building a Digital Mode Data Interface Cable
Hi all,
I just built an Interface cable for the Audio Data Cable and included amplifier keying.? The amp is a MX-P50A with manual band switching (gives about 40W output).
This interface is all built inside a 1"x1"x2" long aluminum enclosure that I got on Amazon.
I used a 4 conductor shielded audio cable and also installed 6 ferrite beads inside the visible heat shrink tubing near to the GX-12 connector.
The 10uF capacitor is inside the small enclosure.
I did use three stereo audio jacks instead of plugs (also from Amazon).
I attach two photos for your information.
Glen - WB4KTF, Austin, TX USA
|
Re: Building a Digital Mode Data Interface Cable
yes, the 10uF cap is to keep stay RF out.
On Mon, May 10, 2021 at 10:43 PM Gary Priest (KC8JOK) via <kc8jok= [email protected]> wrote: Greetings,
My Tx-500 arrived on Friday! I made a few contacts with it during the Arkansas QSO on Saturday while doing some portable work at a local park. I can tell this is going to be a great radio.
I do a good bit of Winlink so would like to get up on digital modes. Lab599¡¯s documentation shows a 10uF cap on the data cable. The audio interfaces I have from ZLP Electronics and XGGcomms already have isolated audio circuits. Is this 10uF cap protecting the audio chipset in the TX-500 from stray RF? This is a new one to me so the nerd in me is at least curious why this is different from other radios. I did notice their reference cable has leads to connect to a computer sound card which I assume lacks the isolation built in to purpose made radio interface gear.
73,
Gary
KC8JOK
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Building a Digital Mode Data Interface Cable
Greetings,
My Tx-500 arrived on Friday! I made a few contacts with it during the Arkansas QSO on Saturday while doing some portable work at a local park. I can tell this is going to be a great radio.
I do a good bit of Winlink so would like to get up on digital modes. Lab599¡¯s documentation shows a 10uF cap on the data cable. The audio interfaces I have from ZLP Electronics and XGGcomms already have isolated audio circuits. Is this 10uF cap protecting the audio chipset in the TX-500 from stray RF? This is a new one to me so the nerd in me is at least curious why this is different from other radios. I did notice their reference cable has leads to connect to a computer sound card which I assume lacks the isolation built in to purpose made radio interface gear.
73,
Gary
KC8JOK
|
Re: Matching TX500 Power Amp/Tuner - DIY599 PA500
Hi Oliver. Email sent. Not sure if I am sending it to the email you monitor.?
Thanks & 73, Steve W0ARK
On Mon, Apr 19, 2021, 1:06 AM Oliver < oliver@...> wrote: Hi Steven,
just write me an email.
73,
DL4KA
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Re: Prototype covers give away
No 3d printer for me....OH WELL !!!
es vy 73 om de "baab" w9ya
toggle quoted message
Show quoted text
On Tue, May 4, 2021 at 6:52 AM DF6PA <pingaffe@...> wrote:
Hi Bob
I am not sure if sending them over the ocean is worth the fun. Do you have access to an 3D printer? I could send the printfiles.
I got the file from Lab599 a long time ago. I always asked them about the copyright, but never got an answer. So I guess it is ok for private use as long as nobody is going to make a business out of it.
So, if you would like to get the 3d print files, send my an email to: df6pa@...
73, Stephan
--
DF6PA
Stephan Forth
Licensed since 1978
TX-500, IC-703, FT-817ND
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Re: Prototype covers give away
Hi Axel
On is still available, but I can also send the printfiles.
Just drop me an email at df6pa at darc dot de
73, Stephan
--
DF6PA
Stephan Forth
Licensed since 1978
TX-500, IC-703, FT-817ND
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Re: Prototype covers give away
On Tue, May 4, 2021 at 03:16 PM, Alexander wrote:
Also, where did you get that GX port covers? Looks really nice with retention
?I found them on Amazon, just look for GX-12 caps 73, Stephan -- DF6PA Stephan Forth Licensed since 1978 TX-500, IC-703, FT-817ND
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Re: Prototype covers give away
I'm interested in files and used material as well. Mail is lex at postpro dot net.
Also, where did you get that GX port covers? Looks really nice with retention.
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Glen Jenkins WB4KTF
DF6PA