Date
1 - 20 of 92
Locked Using WSJTX Waaterfall #FT8
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Wondering of late how many people utilize the waterfall in WSJTX? Ive hear a comment from a popular YouTuber that "I never use it", which
leads me to think he is one of those people who transmit without looking as is likely sending rite on top of someone. Several times I have had this happen to me while working a fairly weak station and BOOM someone comes in rite on top of his reply to me. Common guys, use the tools provided.\ Thanks for listening Al WB7SWW |
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Ronnie Hull - W5SUM <w5sum@...>
I use the waterfall specifically to stay off others TX freq. My biggest complaint is some who lands on top of me to work me then stays there like a LID and knocks me out of my slot
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Rude On Aug 21, 2022, at 1:16 PM, Allen Lee <alee@...> wrote: |
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My issue is when I am trying to grab a needed DX, and someone NEAR ME (and therefore should be able to hear the same DX station) calls CQ right on top of the rare DX. LISTEN FIRST!!! The waterfall is essential to using WSJT-X appropriately.
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Larry / W1DYJ On 8/21/2022 14:21, Ronnie Hull - W5SUM wrote:
I use the waterfall specifically to stay off others TX freq. My biggest complaint is some who lands on top of me to work me then stays there like a LID and knocks me out of my slot |
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Ron Schunk <ron051798@...>
It's just the same on ssb...some lid will jump right on top of you, or a
tough to hear transmission...maybe the wsjtx users that do this don't know about the 'last dx call' button....took me awhile to figure it out...tried to do a cq in an open slot on the waterfall and it jumped back to the last transmission slot...but then there are some that just don't care... On Sun, Aug 21, 2022 at 2:44 PM Larry Banks via groups.io <larryb.w1dyj= verizon.net@groups.io> wrote: My issue is when I am trying to grab a needed DX, and someone NEAR ME |
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Dave Sellars
".took me awhile to figure it out..." I think that is a major contributor to much of the interference encountered. It takes a while for all of us to "figure it out". Problem is, it is on-the-job learning. I know the basics regarding the waterfall, but I'm nowhere close to being a proficient user.
There are numerous videos on YouTube that introduce the new FT8 user to the waterfall. But I haven't seen one that provides a detailed explanation and demonstration of the waterfall. I'd like to see someone provide a video/s of a "deep dive" into the waterfall. One that I could view over and over as a reference video for learning and problem solving. Maybe such a video is already available and I haven't found it yet. If so, forgive my oversight and direct me accordingly. I am very appreciative of this group and the information and assistance provided to anyone seeking help. My $.02 worth. Dave - KB4JB ________________________________ From: main@WSJTX.groups.io <main@WSJTX.groups.io> on behalf of Ron Schunk via groups.io <ron051798@...> Sent: Sunday, August 21, 2022 3:27 PM To: main@WSJTX.groups.io Group Moderators <main@wsjtx.groups.io> Subject: Re: [WSJTX] Using WSJTX Waaterfall #FT8 It's just the same on ssb...some lid will jump right on top of you, or a tough to hear transmission...maybe the wsjtx users that do this don't know about the 'last dx call' button....took me awhile to figure it out...tried to do a cq in an open slot on the waterfall and it jumped back to the last transmission slot...but then there are some that just don't care... On Sun, Aug 21, 2022 at 2:44 PM Larry Banks via groups.io <larryb.w1dyj= verizon.net@groups.io> wrote: My issue is when I am trying to grab a needed DX, and someone NEAR ME |
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That and marvel at working a station that doesn't show on the waterfall.
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On Aug 21, 2022 11:21, Ronnie Hull - W5SUM <w5sum@...> wrote:
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de Gary K7FR |
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Using the waterfall is essential. You need to be able to see what is on the band, including things that aren't decode-able FT8 signals. And run it at the fastest speed so you can actually identify signals and noise. I also like to have the speaker audio up at low volume when I am in the shack, same reason.
73 -Jim NU0C On Sun, 21 Aug 2022 11:06:26 -0700 "Allen Lee" <alee@...> wrote: Wondering of late how many people utilize the waterfall in WSJTX? Ive hear a comment from a popular YouTuber that "I never use it", which |
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Michael Black
That's partly due to the color palette that tries to do heat maps instead of high contrast division.
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I've got a new palette which shows low-level signals better. Turn your waterfall offset all the way down and adjust the waterfall gain until you get just a very little bit of "snow" across the waterfall. https://www.dropbox.com/s/wwiwb7609f5a6xa/W9MDB_WSJTX.pal?dl=0 Mike W9MDB On Sunday, August 21, 2022 at 04:17:07 PM CDT, - - <k7fr@...> wrote:
That and marvel at working a station that doesn't show on the waterfall. On Aug 21, 2022 11:21, Ronnie Hull - W5SUM <w5sum@...> wrote: -- de Gary K7FR |
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I watch the waterfall all the time. It tells me if there's another station on, or close, to my offset and which stations are very loud, and splattering, or when a weak signal pops up.
Possibly on very busy frequencies, like 20M, it may be of less use, but on VHF and UHF it's still useful to me. |
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dl8le
"Possibly on very busy frequencies, like 20M, it may be of less use"
I don't believe that it would be good not to use the waterfall on very busy frequencies, it's just the opposite. It is very difficult to find a free channel for the own tx signal if the band is very croweded, and it is mandatory to look into the waterfall first to see if the channel is free or not. By the way: it would be a nice feature if WSJT-X would show the same vertical lines in the waterfall when selecting the tx-frequency as it is done in JTDX or in JS8call. Those vertical lines help a lot in particular on very busy bands. This would be a good enhancement IMHO. 73 Juergen, DL8LE |
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Hi all,
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Anyone NOT using the waterfall should not be running FT8, as it will only cause QRM... Even on a busy band, you need to ensure you are not transmitting over someone else, or you simply risk not being heard. It's right up there with calling a DX station on their QRG! 73 de Phil GU0SUP -----Original Message-----
From: "David Ackrill" <david.ackrill@...> Sent: Monday, 22 August, 2022 10:56 To: main@WSJTX.groups.io Subject: Re: [WSJTX] Using WSJTX Waaterfall #FT8 I watch the waterfall all the time. It tells me if there's another station on, or close, to my offset and which stations are very loud, and splattering, or when a weak signal pops up. Possibly on very busy frequencies, like 20M, it may be of less use, but on VHF and UHF it's still useful to me. |
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Bill Lederer
While I agree that it is good practice to look for a blank or reasonably
blank spot in the waterfall, the difference between FT8 and CW and SSB is that FT8 can decode signals that are essentially on top of each other. I agree that it will improve your chances of a contact, but if you are calling a DX station, then you are at least on a different time slot than that station, so you are not interfering with them if you are on their frequency. I do find it annoying if a station comes back to me on my frequency, having forgotten to check "hold tx frequency" On Mon, Aug 22, 2022 at 9:34 AM Phil Cooper via groups.io <pcooper= suremail.gg@groups.io> wrote: Hi all,-- --w8lvn-- |
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The waterfall is only blank at your antenna. May well be beet red half way across the world (or even closer to your antenna,) Blankness or occupation is also a function of your RF Gain --- whole waterfall can be blank with a turned down gain or a combination of red and blue with a high gain..
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For YOU to get out, go for the blank --- but doesn't guarantee that he intended receiver won't be red at that location --- and vice versa Gwen KI5PXQ On 8/22/22 17:00, Bill Lederer wrote:
While I agree that it is good practice to look for a blank or reasonably |
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Sam Birnbaum
The only guarantee that you can have for a clear offset at the intendent target is if you pick the same offset that they picked to transmit. That is of course if the intended target first picked a clear offset at their location. Whether is spot on or 15-25 Hz to either side and if your signal is strong enough, it will be decoded.
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73, Sam W2JDB -----Original Message-----
From: Gwen <gsw2@...> To: main@WSJTX.groups.io Sent: Mon, Aug 22, 2022 8:05 pm Subject: Re: [WSJTX] Using WSJTX Waaterfall #FT8 The waterfall is only blank at your antenna. May well be beet red half way across the world (or even closer to your antenna,) Blankness or occupation is also a function of your RF Gain --- whole waterfall can be blank with a turned down gain or a combination of red and blue with a high gain.. For YOU to get out, go for the blank --- but doesn't guarantee that he intended receiver won't be red at that location --- and vice versa Gwen KI5PXQ On 8/22/22 17:00, Bill Lederer wrote: While I agree that it is good practice to look for a blank or reasonably |
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Chuck Gelm
On 8/22/22 19:00, Bill Lederer wrote:
I do find it annoying if a station comes back to me on my frequency, havingI do find it annoying if a station will not answer my reply to their CQ when I am on my frequency, but will reply only when I am on their TX frequency. |
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And if everyone does that then this offset becomes a QRM-fest where no one is decoded. WSJT-X can only do so much. Also on a busy band it may nit possible to select a slot that looks clear both ways. Which is OK. This is the way it's meant to work. Sharing of both frequency and time slots is baked in. Calling on the other op's TX frequency should only be done as a last resort.
73 -Jim NU0C On Tue, 23 Aug 2022 00:14:19 +0000 (UTC) "Sam Birnbaum via groups.io" <w2jdb@...> wrote: The only guarantee that you can have for a clear offset at the intendent target is if you pick the same offset that they picked to transmit. |
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Sam Birnbaum
Funny how on phone or cw, it seems that the human ear can pick up snd decode the strongest signal during a pileup even when we are all on the same frequency.
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A smart operator seeing that no one is being answered to will shift up or down and FT8 and FT4 has an amazing ability to decode overlapped signals. 73, Sam W2JDB -----Original Message-----
From: Jim Shorney <jimNU0C@...> To: main@WSJTX.groups.io Sent: Mon, Aug 22, 2022 8:57 pm Subject: Re: [WSJTX] Using WSJTX Waaterfall #FT8 And if everyone does that then this offset becomes a QRM-fest where no one is decoded. WSJT-X can only do so much. Also on a busy band it may nit possible to select a slot that looks clear both ways. Which is OK. This is the way it's meant to work. Sharing of both frequency and time slots is baked in. Calling on the other op's TX frequency should only be done as a last resort. 73 -Jim NU0C On Tue, 23 Aug 2022 00:14:19 +0000 (UTC) "Sam Birnbaum via groups.io" <w2jdb@...> wrote: The only guarantee that you can have for a clear offset at the intendent target is if you pick the same offset that they picked to transmit. |
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Jim Brown
But this does NOT guarantee a clear frequency if multiple callers do the same! I also am unhappy when stations call on my frequency, and I often don't respond to them.
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73, Jim K9YC On 8/22/2022 5:14 PM, Sam Birnbaum via groups.io wrote:
The only guarantee that you can have for a clear offset at the intendent target is if you pick the same offset that they picked to transmit. That is of course if the intended target first picked a clear offset at their location. Whether is spot on or 15-25 Hz to either side and if your signal is strong enough, it will be decoded. |
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Chuck Gelm
On 8/22/22 20:24, Jim Brown wrote:
I also am unhappy when stations call on my frequency, and I often don't respond to them.I am unhappy when, I did not call CQ but answered a CQ on the calling stations frequency, then another station 'tail-ends' the QSO and calls me on the same frequency. When I catch this, I do not respond on the same frequency. |
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I look at the waterfall to find the darkest blue I can see. That tells me there is no one there, that I can hear! It's no guarantee of a free spot but at least if I can't hear anyone there, there's a decent chance. I find this works if the station I'm calling doesn't reply after a few calls. I move and more than half the time I'm rewarded with a QSO.
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For what it's worth... Pete Chamalian, W1RM W1RM@... -----Original Message-----
From: main@WSJTX.groups.io <main@WSJTX.groups.io> On Behalf Of Jim Brown Sent: Monday, August 22, 2022 8:24 PM To: w1rm@... Subject: Re: [WSJTX] Using WSJTX Waaterfall #FT8 But this does NOT guarantee a clear frequency if multiple callers do the same! I also am unhappy when stations call on my frequency, and I often don't respond to them. 73, Jim K9YC On 8/22/2022 5:14 PM, Sam Birnbaum via groups.io wrote: The only guarantee that you can have for a clear offset at the intendent target is if you pick the same offset that they picked to transmit. That is of course if the intended target first picked a clear offset at their location. Whether is spot on or 15-25 Hz to either side and if your signal is strong enough, it will be decoded. |
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