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1x1 call sign "bug" in WSPR spotting
#WSPR
#IssueReport
I posted about this issue recently in the context of a special event beacon I was working with, but wanted to make sure the WSJT-x developers are aware of it. The WSPR protocol allows for the transmis
I posted about this issue recently in the context of a special event beacon I was working with, but wanted to make sure the WSJT-x developers are aware of it. The WSPR protocol allows for the transmis
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Bruce KX4AZ
· #34070
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Three character call sign in WSPR?
#WSPR
Yes, 1x1 call signs, such as the one I am currently working with, N1D. I have several queries about this posted on WSPR-related forums, and I surmise it may simply turn out to be a flaw in the current
Yes, 1x1 call signs, such as the one I am currently working with, N1D. I have several queries about this posted on WSPR-related forums, and I surmise it may simply turn out to be a flaw in the current
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Bruce KX4AZ
· #33789
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Three character call sign in WSPR?
#WSPR
I'm trying to operate a WSPR beacon for a special event station (N1D). It appears that the decoder in WSJT-x does not accept the use of a three letter call sign. The only spots I am getting are from (
I'm trying to operate a WSPR beacon for a special event station (N1D). It appears that the decoder in WSJT-x does not accept the use of a three letter call sign. The only spots I am getting are from (
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Bruce KX4AZ
· #33780
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WSPR output power at <0 dBm
#WSPR
I have had many hours of fun over the past few years, transmitting very weak WSPR signals at <0 dBm (1 milliwatt) output power. My most recent "experiments" were at a level close to -20 dBm, aka 10 mi
I have had many hours of fun over the past few years, transmitting very weak WSPR signals at <0 dBm (1 milliwatt) output power. My most recent "experiments" were at a level close to -20 dBm, aka 10 mi
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Bruce KX4AZ
· #29563
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Compensating for audio lag from SDR?
#AudioIssues
One of my SDRs outputs audio with about 1.5 second lag time. WSJT-x seems to decode FT8 OK, but any station sending with a "real" lag time might be missed. And I don't like sending inaccurate time val
One of my SDRs outputs audio with about 1.5 second lag time. WSJT-x seems to decode FT8 OK, but any station sending with a "real" lag time might be missed. And I don't like sending inaccurate time val
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Bruce KX4AZ
· #28606
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WSJT-x signal processing versus RTTY decoding in Fldigi?
#decode
I have always been in awe over the signal processing and error correction techniques used in the assorted WSJT-x modes....and my curiosity compels me to ask... I wonder if any of these techniques coul
I have always been in awe over the signal processing and error correction techniques used in the assorted WSJT-x modes....and my curiosity compels me to ask... I wonder if any of these techniques coul
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Bruce KX4AZ
· #26899
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S/N reporting on different modes
#modes
#Icom
On Mon, Jul 12, 2021 at 05:37 AM, Bill Somerville wrote: .. The noise estimation algorithms in WSJT-X reflect both the expected band occupancy and the evolution of noise estimatiin the software. ... T
On Mon, Jul 12, 2021 at 05:37 AM, Bill Somerville wrote: .. The noise estimation algorithms in WSJT-X reflect both the expected band occupancy and the evolution of noise estimatiin the software. ... T
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Bruce KX4AZ
· #26653
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Unusual audio splatter pattern
#FT8
I noticed an unusual audio splatter pattern on FT8 (6 meter band) - not the typical audio clipping pattern with 2X 3X harmonics etc. Curious to know what would cause this unique pattern. The signal st
I noticed an unusual audio splatter pattern on FT8 (6 meter band) - not the typical audio clipping pattern with 2X 3X harmonics etc. Curious to know what would cause this unique pattern. The signal st
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Bruce KX4AZ
· #24831
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WSJT-X Crashing on transmit
#wsjt-x-crashing
Have you tried running at a lower RF output power to see if it does the same thing? Or run full power with a dummy load attached. That way you could make sure it's not related to stray RF coming into
Have you tried running at a lower RF output power to see if it does the same thing? Or run full power with a dummy load attached. That way you could make sure it's not related to stray RF coming into
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Bruce KX4AZ
· #24258
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FT8 deep decode speed on Pi 4B
#FT8
I've been trying out WSJT-x with FT8 recently, running the latest full release on a Pi 4B w/4GB memory, 32GB microSD card, and I notice that on a crowded band (e.g. 20m in the afternoon, >35 stations)
I've been trying out WSJT-x with FT8 recently, running the latest full release on a Pi 4B w/4GB memory, 32GB microSD card, and I notice that on a crowded band (e.g. 20m in the afternoon, >35 stations)
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Bruce KX4AZ
· #24133
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WSPR receiving bandwidth adjustment?
#WSPR
Bill, I guess I should experiment by shifting the receiver frequency slightly. They are so close to the WSPR band and with the same width and duration, so I had assumed they were WSPR. Bruce KX4AZ
Bill, I guess I should experiment by shifting the receiver frequency slightly. They are so close to the WSPR band and with the same width and duration, so I had assumed they were WSPR. Bruce KX4AZ
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Bruce KX4AZ
· #23860
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WSPR receiving bandwidth adjustment?
#WSPR
Now and then I see a poor little WSPR signal coming in just outside of the 1400-1600 Hz standard bandwidth, so it won't be decoded as far as I understand. Wondering if there is any kind of setting in
Now and then I see a poor little WSPR signal coming in just outside of the 1400-1600 Hz standard bandwidth, so it won't be decoded as far as I understand. Wondering if there is any kind of setting in
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Bruce KX4AZ
· #23743
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Theoretical maximum for one FT8 band channel?
#FT8
With the ever-increasing popularity of the FT8 mode, there are times when I am decoding in excess of 36 stations on a single channel (JTAlert display slot maximum). And I am practically forced to tran
With the ever-increasing popularity of the FT8 mode, there are times when I am decoding in excess of 36 stations on a single channel (JTAlert display slot maximum). And I am practically forced to tran
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Bruce KX4AZ
· #20863
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Sub-Process Error when Band Hopping using WSJT-X v2.2.2
I was delighted to discover that the new version 2.2.3 release candidate has fixed the frequency hopping error for WSPR mode. Yay!!!!
I was delighted to discover that the new version 2.2.3 release candidate has fixed the frequency hopping error for WSPR mode. Yay!!!!
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Bruce KX4AZ
· #17198
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