Date
1 - 17 of 17
Start/Stop delay help please
hiram maxim
Hello. I am currently using version 3.2. I find there is almost a 3 second delay when I hit the stop or play button. All other features work fine and respond instantly. I never have this problem with HDSDR or SDRUNO. Why is it a problem? Because I am tracking my FT-950 with Console and often use it as the main receiver during Ham radio activities. The delay is significant during on the air, even casual operating. Not doing any "shotgun" DX work. Interesting that the data flow latency between the SDR (RSP1) and the 950 receiver is almost nothing, whereas with other software it is quite noticeable..but the T/R works instantly. So what is the problem wit SDR Console? I am using all the same settings and hardware as the other software. Baud rate is at 38400. OmniRig polling at 100ms. Computer is Win10, 8gb RAM, quad core 3200Mhz.
Any suggestions greatly appreciated as this is really a problem for me..3 seconds is too long a turn around. Maybe there is another way to put the software into stop/start ? F5 does not work for me.
TNX Jim K2TL
Any suggestions greatly appreciated as this is really a problem for me..3 seconds is too long a turn around. Maybe there is another way to put the software into stop/start ? F5 does not work for me.
TNX Jim K2TL
Max
On Wed, Oct 26, 2022 at 09:53 PM, hiram maxim wrote:
Not fully sure I understand your issue. Apologies in advance if I am totally misunderstanding you, but by "Stop" and "Play" button, do you mean the buttons at top left of screen to start/stop the SDR? This is a once only job at the beginning of the session. But then you talk about T/R? That has nothing to do with the Start/Stop operation does it? I may have this totally wrong, but sounds like you are trying to start/stop the SDR when in TX? TX from the external radio simply mutes the SDR as would a separate hardware receiver when TX is initiated from the FT-950. AFAIK this should work perfectly fine with no delay. I just need to say I've never used SDRC with an external radio, but many on here do!
There is no T/R delay I have ever experienced in SDRC or of course it would be unusable.
Did you check these notes regarding using an external radio?
https://www.sdr-radio.com/external-radio
73
Max
I find there is almost a 3 second delay when I hit the stop or play button. All other features work fine and respond instantly. I never have this problem with HDSDR or SDRUNO. Why is it a problem? Because I am tracking my FT-950 with Console and often use it as the main receiver during Ham radio activities.Hi Jim
Not fully sure I understand your issue. Apologies in advance if I am totally misunderstanding you, but by "Stop" and "Play" button, do you mean the buttons at top left of screen to start/stop the SDR? This is a once only job at the beginning of the session. But then you talk about T/R? That has nothing to do with the Start/Stop operation does it? I may have this totally wrong, but sounds like you are trying to start/stop the SDR when in TX? TX from the external radio simply mutes the SDR as would a separate hardware receiver when TX is initiated from the FT-950. AFAIK this should work perfectly fine with no delay. I just need to say I've never used SDRC with an external radio, but many on here do!
There is no T/R delay I have ever experienced in SDRC or of course it would be unusable.
Did you check these notes regarding using an external radio?
https://www.sdr-radio.com/external-radio
73
Max
hiram maxim
Hello..so what I do is stop the program when I go to transmit, as you correctly noted, and then go to start (play) when back to receive. My FT-950 tracking does not stop the program when I hit F5. If I do not stop the program when in transmit, well you can imagine what that does! I have used this method for years with HDSDR and SDRUNO and it works quite well because it is an instantaneous response. But not so with Console. Three seconds is a significant delay and it results in the station I am working getting a few words or letters (on CW) "chopped off" before I can begin to receive. Hope that makes sense?
Jim
Jim
jdow
Tour the options settings. Check out what automute does.
{^_-}
On 20221026 16:11:31, hiram maxim
wrote:
Hello..so what I do is stop the program when I go to transmit, as you correctly noted, and then go to start (play) when back to receive. My FT-950 tracking does not stop the program when I hit F5. If I do not stop the program when in transmit, well you can imagine what that does! I have used this method for years with HDSDR and SDRUNO and it works quite well because it is an instantaneous response. But not so with Console. Three seconds is a significant delay and it results in the station I am working getting a few words or letters (on CW) "chopped off" before I can begin to receive. Hope that makes sense?
Jim
toggle quoted message
Show quoted text
--
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of jdow via groups.io <jdow@...>
Sent: 27 October 2022 07:33
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Start/Stop delay help please
Sent: 27 October 2022 07:33
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Start/Stop delay help please
Tour the options settings. Check out what automute does.
{^_-}
On 20221026 16:11:31, hiram maxim wrote:
Hello..so what I do is stop the program when I go to transmit, as you correctly noted, and then go to start (play) when back to receive. My FT-950 tracking does not stop the program when I hit F5. If I do not stop the program when in transmit, well you can imagine what that does! I have used this method for years with HDSDR and SDRUNO and it works quite well because it is an instantaneous response. But not so with Console. Three seconds is a significant delay and it results in the station I am working getting a few words or letters (on CW) "chopped off" before I can begin to receive. Hope that makes sense?
Jim
--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
Max
On Thu, Oct 27, 2022 at 05:46 AM, hiram maxim wrote:
As Simon and Joanne have pointed out, that is one very laborious way of operating. Think of SDRC as just a separate receiver. Maybe even a tube one that needs to "warm up" after it's been turned off. You would not do that with a tube receiver. You just mute it during receive, and an SDR is no different. The receiver is simply muted during TX and comes back into receive instantly when you stop TX.
However, you need to think about protection of the SDR front end when you are in TX. That's down to the routing of the signal to the SDR. How is the SDR fed? As I say I don't use an external radio as I have an SDR transceiver and so for me SDR Console simply becomes the whole transceiver so these issues don't apply. At the very least you might consider some sort of pin diode device in the antenna feed to the SDR to protect the front end, or better still an RX/TX switch to isolate the SDR in TX. Are you switching the main antenna to the SDR in some way, or are you using the SDR as a panadapter by tapping the IF of the FT-950?
Anyway, see Steve Ellington's video here with his MFJ RX/TX switch:
https://www.youtube.com/watch?v=PPZyf15aGVQ
Also see this thread here for some more information:
https://sdr-radio.groups.io/g/main/topic/76467796
Good luck!
Max
Hello..so what I do is stop the program when I go to transmit, as you correctly noted, and then go to start (play) when back to receive.Hi Jim
As Simon and Joanne have pointed out, that is one very laborious way of operating. Think of SDRC as just a separate receiver. Maybe even a tube one that needs to "warm up" after it's been turned off. You would not do that with a tube receiver. You just mute it during receive, and an SDR is no different. The receiver is simply muted during TX and comes back into receive instantly when you stop TX.
However, you need to think about protection of the SDR front end when you are in TX. That's down to the routing of the signal to the SDR. How is the SDR fed? As I say I don't use an external radio as I have an SDR transceiver and so for me SDR Console simply becomes the whole transceiver so these issues don't apply. At the very least you might consider some sort of pin diode device in the antenna feed to the SDR to protect the front end, or better still an RX/TX switch to isolate the SDR in TX. Are you switching the main antenna to the SDR in some way, or are you using the SDR as a panadapter by tapping the IF of the FT-950?
Anyway, see Steve Ellington's video here with his MFJ RX/TX switch:
https://www.youtube.com/watch?v=PPZyf15aGVQ
Also see this thread here for some more information:
https://sdr-radio.groups.io/g/main/topic/76467796
Good luck!
Max
hiram maxim
Yes, I have done this and it would seem to be a great solution..however, I get a "signal tail" . hard to explain. But say on CW, the pause between words results in a quick tone from the SDR when it goes back to receive. I tried adjusting the options for the longest mute delay but I still get the annoying signal burst. I can't seem to get the SDR to stay muted long enough to prevent the tail. So I have to manually stop the program during transmit or I go nuts listening to the fragment of the last CW character between words. Hope that makes sense.
hiram maxim
My RSP1 gets connected to my transceiver antenna via the Utune ports on the FT-950. It basically switches out the antenna to the RSP1 during transmit. I have a PIN diode RF limiter on order anyway. Been operating like this for several years with no problem, but now having said that I can expect smoke, HI!
Let's see your settings.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of hiram maxim via groups.io <jimk2tl@...>
Sent: 27 October 2022 13:32
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Start/Stop delay help please
Sent: 27 October 2022 13:32
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Start/Stop delay help please
Yes, I have done this and it would seem to be a great solution..however, I get a "signal tail" . hard to explain. But say on CW, the pause between words results in a quick tone from the SDR when it goes back to receive. I tried adjusting the options
for the longest mute delay but I still get the annoying signal burst. I can't seem to get the SDR to stay muted long enough to prevent the tail. So I have to manually stop the program during transmit or I go nuts listening to the fragment of the last CW
character between words. Hope that makes sense.
--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
toggle quoted message
Show quoted text
--
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of hiram maxim via groups.io <jimk2tl@...>
Sent: 27 October 2022 14:55
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Start/Stop delay help please
Sent: 27 October 2022 14:55
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Start/Stop delay help please
--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
jdow
He would need that protection with or without turning the SDR off. It's still connected and thus can still have its front end destroyed. If he is using it with a radio with an IF tap then he's home free. Otherwise he should find a way to estimate how much power is coming into his SDR front end while he transmits and protect it accordingly. With a good antenna on 15 MHz and below I've often used a 10 dB pad in such cases. The SNR won't measurably change in 99.944% of the cases (well - very vast majority of cases); and; you get some protection. In bad situations an antenna relay arrangement is called for.
{^_^}
On 20221027 01:14:07, Max wrote:
On Thu, Oct 27, 2022 at 05:46 AM, hiram maxim wrote:
Hello..so what I do is stop the program when I go to transmit, as you correctly noted, and then go to start (play) when back to receive.Hi Jim
As Simon and Joanne have pointed out, that is one very laborious way of operating. Think of SDRC as just a separate receiver. Maybe even a tube one that needs to "warm up" after it's been turned off. You would not do that with a tube receiver. You just mute it during receive, and an SDR is no different. The receiver is simply muted during TX and comes back into receive instantly when you stop TX.
However, you need to think about protection of the SDR front end when you are in TX. That's down to the routing of the signal to the SDR. How is the SDR fed? As I say I don't use an external radio as I have an SDR transceiver and so for me SDR Console simply becomes the whole transceiver so these issues don't apply. At the very least you might consider some sort of pin diode device in the antenna feed to the SDR to protect the front end, or better still an RX/TX switch to isolate the SDR in TX. Are you switching the main antenna to the SDR in some way, or are you using the SDR as a panadapter by tapping the IF of the FT-950?
Anyway, see Steve Ellington's video here with his MFJ RX/TX switch:
https://www.youtube.com/watch?v=PPZyf15aGVQ
Also see this thread here for some more information:
https://sdr-radio.groups.io/g/main/topic/76467796
Good luck!
Max
jdow
There is a reason I suggested a full tour of options. Tools->options->Auto-Mute.
You can set the mute time from 0 to half a second in 10 ms steps.
I bet you'll find other good stuff on your tour of options, too.
{o.o}
On 20221027 05:32:35, hiram maxim
wrote:
Yes, I have done this and it would seem to be a great solution..however, I get a "signal tail" . hard to explain. But say on CW, the pause between words results in a quick tone from the SDR when it goes back to receive. I tried adjusting the options for the longest mute delay but I still get the annoying signal burst. I can't seem to get the SDR to stay muted long enough to prevent the tail. So I have to manually stop the program during transmit or I go nuts listening to the fragment of the last CW character between words. Hope that makes sense.
jdow
I see you are there already - 500 ms latency through the system
suggests something else is not configured the best way. In general
I suggest running the SDR hardware at the highest possible sample
rate for dynamic range reasons. But, in this case this might
result in reduced latency as the buffers would fill quicker and
get forwarded to the SDR program. In any case that delay you seem
to face would make CW conversations a little awkward and
contesting might suffer from the delay between antenna and
headset. I wonder if you are seeing a delay within your
transmitter where it's internal signal generation does not end
promptly.
I missed what you are using for SDR hardware. That, too, may make a significant difference.
Out of addled curiosity are you associated with the ARRL? If so,
welcome to the 21st century. I gave up hope for the ARRL with
regards technology beyond what you can do with empty-state devices
back in the 80s, 90s, and aughties. That last one seems to have
stuck. I got tired of the means my which a signal is generated
being magic that transforms a signal from one designation to
another. (That is an FCC problem, too, I realize. ARRL's guidance
to the FCC seems lacking.)
{o.o}
On 20221027 06:55:29, hiram maxim
wrote: