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Re: Using the FlexRadio IQ channel with WSJT-X and MAP65
#Q65
#map65
#FlexRadio
#Windows10
Amos,
as you think it is a simple software
job to synchronize pair of independent I/Q data streams, then I
propose you tell us the algorithm to do so. You must decide which
I or Q sample in one stream is taken at exactly the same time as
an I or Q sample respectively from the the other stream. Given
that all that is received over an audio channel used to convey I/Q
data is a continuous stream of samples, how do you propose to
identify the exact capture time of samples with respect to the
other continuous stream of samples?
IMHO the only way to do this is either
to have timing information embedded in the data streams (that is
not what happens here), or the two streams are interleaved at
their sources such that each pair of I/Q samples is transmitted as
a pair of pairs, i.e. a 4-channel interleaved data stream.
I don't know where you got the
information that the Flex Radio multi-slice SDRs use a common
clock for all ADCs, which may well be the case but, once those ADC
samples are divide into two independent streams the
synchronization information is lost!
Is the Flex Radio SDR software able to
deliver *interleaved* I/Q data for two or more slices? If so then
doing so at an 96000Hz sample rate is exactly what MAP65 needs for
polarization diversity. If not then there is no way to proceed
IMHO.
73
Bill G4WJS.
On 14/10/2021 12:51, Amos Sobel 4X4MF
wrote:
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Re: Using the FlexRadio IQ channel with WSJT-X and MAP65
#Q65
#map65
#FlexRadio
#Windows10
Amos Sobel 4X4MF
Bill
toggle quoted messageShow quoted text
1. WSJT-X accepts the IQ stream it does create almost similar FT8 results as the base band. 3.1 I am using an H/V Yagi with symmetrical horizontal and vertical 10 by 10 elements on the same boom. 3.2 Flex 6600 has 2 antenna inputs with a 16 bit A/D converters on each antenna input creating a base band and an IQ data stream. Both ADC operate from the same clock. 3.3 Merging the 2 data streams into an interleaved single stream appears to me as a simple software job that can be done by WSJT-X or Flex. Amos 4X4MF
-----Original Message-----
From: main@WSJTX.groups.io <main@WSJTX.groups.io> On Behalf Of Bill Somerville Sent: Thursday, October 14, 2021 1:20 PM To: main@WSJTX.groups.io Subject: Re: [WSJTX] Using the FlexRadio IQ channel with WSJT-X and MAP65 #Q65 #map65 #FlexRadio #Windows10 On 14/10/2021 08:47, Amos Sobel 4X4MF wrote: I have recently discovered that WSJT-X v.2.5.0 does accept the DAX IQHi Amos, 1) no WSJT-X does not currently understand I/Q data, you will get some decodes by selection one of the I or Q channels but that is sub-optimal and you should use a base band audio stream of up to 5 kHz bandwidth as input. 2) Q65 is no different, the front end audio processing in WSJT-X is the same for all modes. 3) I have explained this before to you, for polarization diversity mode MAP65 requires a pair of synchronized I/Q data streams. That can only happen if the two data sources are received from co-located aerials (receiving the same wave-front), use a pair of ADCs sharing a common clock, and the two data streams are interleaved so that MAP65 can process each sample together with its partner from the other ADC (other polarization). As far as I know none of this is possible using a Flex Radio multi-slice SDR since the I/Q data sources are independent (think Humpty Dumpty https://en.wikipedia.org/wiki/Humpty_Dumpty, once broken some things cannot be easily reassembled!) 73 Bill G4WJS.
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Hi Ian,
the "Decode" button should turn cyan
for a second or more at around seconds 51 and 57 of the minute
(depends on the modes selected). The correct timing of the decoder
activity also depends on the correct sample rates being selected,
are you you using the default 96000 rate, and does that match the
rate that Linrad is sending I/Q data at? Do you have the MAP65
Xpol setting set correctly for your system?
73
Bill G4WJS.
On 14/10/2021 11:47, Ian Morrison
wrote:
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Ian Morrison <ve7ai73@...>
Hi Bill I have not yet seen a MAP65 operating normally. What time does the decode light normally blink? Does the decode light blink even if a decode is not likely? Is the decoder solely time initiated? Any bit of information will give me a direction to snoop. 73 Ian
On Thu, Oct 14, 2021 at 3:22 AM Bill Somerville <g4wjs@...> wrote:
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Re: new version 25 doesnt switch ic9100 to usb-d mode
#Cat_RigControl
#Icom
On 14/10/2021 00:47, bob lee wrote:
hi all, upgraded from version 24 to version 25 and have noticed the new version doesnt put my 9100 into data mode, it stays in usb (voice) modeHi Bob, so I can see what is happening please run the following test. Put the attached file into your WSJT-X configuration files directory (on MS Windows that is the same as the log files directory "Menu->Open log directory"), restart WSJT-X, carry out a *minimal* test that demonstrates the issue, then quit WSJT-X. It will have created a file called WSJT-X_RigControl.log on your Desktop. Send me (g4wjs <at> classdesign <dot> com) the log file for analysis please? Once you have sent the log file you can delete the log file and log configuration file to return to normal operation. 73 Bill G4WJS.
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Hi Ian,
yes that may be a clue, but I have no
idea what is happening. Perhaps a conversation with one of the
other EME ops using Linrad as a source for MAP65 may help discover
what is different about your system.
73
Bill G4WJS.
On 13/10/2021 23:36, Ian Morrison
wrote:
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Re: Using the FlexRadio IQ channel with WSJT-X and MAP65
#Q65
#map65
#FlexRadio
#Windows10
On 14/10/2021 08:47, Amos Sobel 4X4MF wrote:
I have recently discovered that WSJT-X v.2.5.0 does accept the DAX IQ RX audio channels of my Flex 6600 instead of the DAX Audio Rx I did use for years.Hi Amos, 1) no WSJT-X does not currently understand I/Q data, you will get some decodes by selection one of the I or Q channels but that is sub-optimal and you should use a base band audio stream of up to 5 kHz bandwidth as input. 2) Q65 is no different, the front end audio processing in WSJT-X is the same for all modes. 3) I have explained this before to you, for polarization diversity mode MAP65 requires a pair of synchronized I/Q data streams. That can only happen if the two data sources are received from co-located aerials (receiving the same wave-front), use a pair of ADCs sharing a common clock, and the two data streams are interleaved so that MAP65 can process each sample together with its partner from the other ADC (other polarization). As far as I know none of this is possible using a Flex Radio multi-slice SDR since the I/Q data sources are independent (think Humpty Dumpty https://en.wikipedia.org/wiki/Humpty_Dumpty, once broken some things cannot be easily reassembled!) 73 Bill G4WJS.
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Re: #FoxAndHound #Cat_RigControl Saving preferences changes rig dial frequency
#Cat_RigControl
#FoxAndHound
On 14/10/2021 01:16, Jeremy Turner wrote:
I'm running version 2.5.0 on Intel Mac, FT8 F/H as a hound.Hi Jeremy, currently WSJT-X resets the CAT connection when you change settings and exit the settings dialog. We recommend setting up a separate configuration for FT8 DXpedition Hound mode ("Menu->Configurations"), then add the current published working frequencies ("Settings->Frequencies") of DXpedition stations using FT8 DXpedition Fox Mode. That will allow quick QSYs to their frequencies in the correct mode. Once set up like this it becomes much easier to track down the band they are active on where you have propagation. 73 Bill G4WJS.
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Using the FlexRadio IQ channel with WSJT-X and MAP65
#Q65
#map65
#FlexRadio
#Windows10
Amos Sobel 4X4MF
I have recently discovered that WSJT-X v.2.5.0 does accept the DAX IQ RX audio channels of my Flex 6600 instead of the DAX Audio Rx I did use for years.
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#FoxAndHound #Cat_RigControl Saving preferences changes rig dial frequency
#Cat_RigControl
#FoxAndHound
Jeremy Turner
I'm running version 2.5.0 on Intel Mac, FT8 F/H as a hound.
I opened the preferences window and updated the IP address to send my log over to MacLoggerDX. When I clicked OK to save the preferences, WSJT-X changed my radio off of the non-standard frequency I was on (7.056 MHz) to the standard one (7.074 MHz). Should clicking OK on the preferences window change my dial frequency? Why wouldn't it leave it alone? Jeremy / N0AW
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new version 25 doesnt switch ic9100 to usb-d mode
#Cat_RigControl
#Icom
bob lee
hi all, upgraded from version 24 to version 25 and have noticed the new version doesnt put my 9100 into data mode, it stays in usb (voice) mode
I've switch back to version 24 which like all the others I've used, switches the rig to usb-d mode I cant find anything in the config screens thats different. Is there somewhere to change the commands sent to initialize the rig The rig is connected to the computer through the usb cable thanks Bob VE3CGA
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Ian Morrison <ve7ai73@...>
Hi Bill The timing is curious isn't it? Always starts receiving at the zero second of the minute and stops at seven seconds. 73 Ian
On Wed, Oct 13, 2021 at 2:40 PM Bill Somerville <g4wjs@...> wrote: On 13/10/2021 22:30, Ian Morrison wrote:
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On 13/10/2021 22:30, Ian Morrison wrote:
Hi BillHi Ian, I doubt Edge is using UDP on any port so that is not an issue, TCP and UDP are separate. The only requirement on port numbers is that whatever you set in the MAP65 settings for the port to listen on (default is 50004) must be the same port you have Linrad sending on. Whichever port being used will have to be opened on the Windows machine firewall for incoming UDP traffic to MAP65. Ephemeral ports are granted to processes on some internal basis by the operating system, a restart should always sort out any issues where the o/s has granted a port you want to use to another process. So I am not sure what is happening. Other MAP65 users are able to use Linrad to feed I/Q data to MAP65 so it would appear to be something specific to your machine. 73 Bill G4WJS.
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Ian Morrison <ve7ai73@...>
Hi Bill
I moved the UDP port in Linrad back to 50004 instead of taking Linrads assignment and get the same result. also did a restart same result. This windows 10 PC is brand new and has no other software loaded but Windows 10, Linrad and WSJT-X with MAP65 3.0. Used netstat -ab to check who is using what ports and found Edge may be using 50024. The end of the 7 seconds shows a decode light but the rx stays off until the next minute zero. 73 Ian
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Re: #WSJTX_config Transmit Sound Issue / FTdx101
#WSJTX_config
#linux
#Yaesu
Adrian Fewster <vk4tux@...>
Also windows allows you to disable system sound access to any audio device incl default.
vk4tux
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ve7ai73@...
Hi Bill Thank you for the reply Linrad tells me to use 50024 which is the only one that works. What other process might use 50024 ? How would I find it ? 73 Ian
On Wed, Oct 13, 2021 at 1:38 PM Bill Somerville <g4wjs@...> wrote: On 13/10/2021 15:51, ve7ai73@... wrote:
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On 13/10/2021 15:51, ve7ai73@gmail.com wrote:
My installation of MAP65 3.0 is receiving for only 7 seconds at the start of each minute and the the receiving stops.OM, is it possible that another process is also listening for UDP datagrams on port 50004? As that is in the ephemeral port number range on MS Windows it is possible it has been granted to another process, does a system restart improve matters? 73 Bill G4WJS.
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Re: #WSJTX_config Transmit Sound Issue / FTdx101
#WSJTX_config
#linux
#Yaesu
Correct, Bill. So, what do you suggest
that will correctly configure the xmit audio? I actually was
trying to keep it simple by not going thru all the other options,
which I've tried; i.e., an apples-to-apples configuration
comparison. Problem is that this was working fine a few weeks
ago.
So, the real question is:"How is WSJT-X
V2.5.0 handling audio differently than two other (similar)
applications that successfully transmit audio (where WSJT-X does
not)?"
73
Keith/KI5US
On 10/13/21 6:15 AM, Bill Somerville
wrote:
On 13/10/2021 01:29, Keith wrote:
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ve7ai73@...
My installation of MAP65 3.0 is receiving for only 7 seconds at the start of each minute and the the receiving stops.
I am using Linrad to send UDP packets. I checked with Wireshark and the UDP packets are continuous no breaks. Using Windows 10. Any thoughts?
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Re: Wide Graph time slot ID text
#Waterfall
Hi Eric,
On Tue, Oct 12, 2021 at 03:23 PM, Bill Somerville wrote: Actually, of course, it's the opposite. Bill has been working too hard answering questions here. You need to DECREASE the "N Avg" spin box value to SPEED UP the scroll speed so there will be room for the annotations. -- 73, Joe, K1JT
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