Date   

locked Re: What should Radio TX Power Setting really be? #wsjt-x #WSJTX_config

William Smith
 

Hi All,

So I've just got my RSP-1A and set it up with the (default) SDRuno software, and can't make any sense of the results.  I've traditionally run my IC-7100 with the "Pwr" slider in WSJT-x at about -12dB, which is just a few watts under the 100W rating on the rig.

Here's the RSP-1A waterfall at -20dB (about 27W output):

Here it is at -12dB (97W out):

and here it is at 0dB (100W out)

I'm not seeing the broadening of the signal I'd expect from overdriving the radio, am I doing something wrong?

BTW:  I was able to make QSOs at 0dB and -15dB with the same ham a couple of minutes apart.

Yeah, I'll try HDSDR, but something doesn't look right above...

Help!

73, Willie N1JBJ

On Jul 24, 2021, at 12:11 PM, Bob McGraw - K4TAX <rmcgraw@...> wrote:

The RSP-1 or RSP-1a  SDR receiver connected to your computer with HDSDR or other free software will do the job.  You can either terminate the input to the SDR receiver with a 50-ohm resistor or just leave it unconnected as there is likely enough RF around your desk to see your transmit spectrum. 

73
Bob, K4TAX




locked Re: Yaesu FT991A Shows WSJTX transmitting but my MFJ- 870 shows nothing happening #Yaesu #txaudio

M0PWX
 

The radio is in Upper Sideband Band mode and not receiving any audio

 

Check the sound card setting in the WSJT-x audio tab, one of the menu settings in the 991a is the data input select and make sure its on USB

 

Look at Yaesu FT-991a - Setup for Digital Modes with only a USB cable (radioaficion.com) about ¾ way through there are all the relevant menu settings

 

73

 

Peter

 

M0PWX

 

Sent from Mail for Windows 10

 

From: wisconsinjimmy
Sent: 27 July 2021 21:49
To: main@WSJTX.groups.io
Subject: [WSJTX] Yaesu FT991A Shows WSJTX transmitting but my MFJ- 870 shows nothing happening #Yaesu #txaudio

 

I cannot figure it out why is it showing the radio transmitting red transmit light comes on and radio switches to transmit but there is no output. HELP PLEASE
Jim KD9DOG

 


locked Re: Yaesu FT991A Shows WSJTX transmitting but my MFJ- 870 shows nothing happening #Yaesu #txaudio

Bill Somerville
 

On 27/07/2021 22:28, wisconsinjimmy wrote:
I cannot figure it out why is it showing the radio transmitting red transmit light comes on and radio switches to transmit but there is no output. HELP PLEASE
Jim KD9DOG
Hi Jim,

I assume you understand that using an SSB mode on your rig means that unless audio is sent to the rig there will be no power output. See the following old post for a recipe for setting your Tx audio level correctly:

https://wsjtx.groups.io/g/main/message/13890

73
Bill
G4WJS.


locked Yaesu FT991A Shows WSJTX transmitting but my MFJ- 870 shows nothing happening #Yaesu #txaudio

wisconsinjimmy <algot1901@...>
 

I cannot figure it out why is it showing the radio transmitting red transmit light comes on and radio switches to transmit but there is no output. HELP PLEASE
Jim KD9DOG


locked Re: Time Synch. #Timesync

Skip <WMMILTON@...>
 

Replace the CMOS battery.

On Tue, Jul 27, 2021 at 2:50 PM Alan Biocca <alan.biocca@...> wrote:
I run Meinberg on several machines, one of them is a recent Dell Windows 10 laptop. When it comes back up the time is off by a varying amount depending on how long the laptop was asleep (it seems to drift something like a second or two per day, I haven't tried to measure it precisely), within a couple of minutes it is spot on. I do have the iburst option on the server config lines, so NTP can decide to jump the clock if it is too far off and correct it immediately, otherwise it warps it in smoothly as NTP is designed to do. So it works perfectly fine on a laptop if configured properly. No reboots or restarts required, my laptop pretty much only reboots when Microsoft sends out updates. Looking at the Meinberg NTP Monitor I can see how far it is off from multiple servers, and can see NTP select the best server to use, either the local Pi GPS PPS servers or one of several from the internet, either from the pool or from a list I have culled of better sites on the internet. It rarely chooses the internet servers, they have low jitter but their delays are a lot higher than the local Pi's. But it always looks at the quality of several servers and chooses the best.

Dimension 4, Bktimesync and other SNTP programs only look at one server at a time, so if it or the intervening network is having problems, the result can be bad and the time set incorrectly without notice, and jerking the system time every 5 minutes or whatever is not a good way to correct the system clock, it causes problems for programs that are doing realtime as the jerking interferes with their sense of time (for example each jerk could cause decode errors on programs like WSJT-X). Full NTP clients look at a list of servers and observe their performance, and choose the best one to follow while monitoring the others. It is very common for a usually good server to occasionally have problems, either the server itself gets busy with something (other workload, updates, client load, reboots) or the network between the server and your location has congestion that causes jitter and delays or packet losses. It is very common to get bad times from remote time servers, at least occasionally. So a quality filtering process is important to ensuring that your machine follows good time information. This is what NTP is developed and perfected to do.

73 de w6akb


On Tue, Jul 27, 2021 at 11:05 AM Michael Black via groups.io <mdblack98=yahoo.com@groups.io> wrote:
If you start it with -g it should sync immediately.


Open services and find Network Time Protocol -- stop it and add the -g switch -- then start it back up again and test.

Inline image



Mike W9MDB


On Tuesday, July 27, 2021, 12:47:16 PM CDT, Ron Schunk <ron051798@...> wrote:


I've been using Meinberg since February when I first got back on the air and also time.is ... when I bring my laptop back from 'sleep' mode I usually find that time.is never up to date...I always end up rebooting the laptop and then my time is exact...
Ron
WA8KQF

Virus-free. www.avast.com

On Mon, Jul 26, 2021 at 2:47 PM Kermit Lehman via groups.io <ktfrog007=aol.com@groups.io> wrote:
I have two computers I use for FT modes. As an experiment the one runs Dim4 and the other Meinberg. Both have worked well for me.

If you use Dim4, you need to find the closest open-access time server.  I use one from MIT, which is relatively nearby.  If you don't set Dim4 up properly in this regard, it won't work well.

73,
Ken, AB1J


-----Original Message-----
From: K0GU <k0gu@...>
To: main@WSJTX.groups.io
Sent: Mon, Jul 26, 2021 5:26 pm
Subject: Re: [WSJTX] Time Synch. #Timesync

Interesting, I have zero problems with Meinberg and until I switched had problems with DIM4 sometimes not finding the time server. Probably some setting I had wrong or I chose an intermittent time server. FWIW

gmendenh1947 if you have a callsign you might wish to create a signature line, or add your call to the post, so we have an idea who you are, or not. I'm going to guess you are one of the many Mendenhalls in the FCC data base that has a name starting with g.

--
73,  Jay  K0GU  DN70mq
















locked Re: Class C Amplifier Application #transmit

Rik Strobbe
 

Although SSB modulated FT8 and FT4 are FSK signals and thus don't require linear amplification.
So a class C (or D or E) amplifier can be used wthout distorting the signal.
On LF and MF it is common practice to use high efficient (90% or more) class D or E amplifiers for FT8, JT9 etc.

73, Rik OR7T
________________________________________
Van: main@WSJTX.groups.io <main@WSJTX.groups.io> namens alanbh@... <alanbh@...>
Verzonden: dinsdag 27 juli 2021 21:14
Aan: main@WSJTX.groups.io
Onderwerp: Re: [WSJTX] Class C Amplifier Application #transmit

The answer would be NO. FT8 and FT4 is a tone modulate SSB type signal. You cannot put an SSB or modulated signal through class C amplifier without distorting the signal. The maximum class you can put a modulated of SSB type signal through without or absolute minimal distortion is a class B Amplifier.

73, alan WA3EKL

----- Original Message -----
From: "Bob McGraw - K4TAX" <rmcgraw@...>
To: WSJTX@groups.io
Sent: Tuesday, July 27, 2021 7:05:24 PM
Subject: [WSJTX] Class C Amplifier Application #transmit


I've not seen any clear or definitive answer to the question "can one
suddessfully run FT-8/4 or other WSJT-X modes via a Class C solid state
VHF amplifier?"  Asking because I have a VHF amplifier which is not linear.

73

Bob, K4TAX


locked Re: Time Synch. #Timesync

Alan B
 

I run Meinberg on several machines, one of them is a recent Dell Windows 10 laptop. When it comes back up the time is off by a varying amount depending on how long the laptop was asleep (it seems to drift something like a second or two per day, I haven't tried to measure it precisely), within a couple of minutes it is spot on. I do have the iburst option on the server config lines, so NTP can decide to jump the clock if it is too far off and correct it immediately, otherwise it warps it in smoothly as NTP is designed to do. So it works perfectly fine on a laptop if configured properly. No reboots or restarts required, my laptop pretty much only reboots when Microsoft sends out updates. Looking at the Meinberg NTP Monitor I can see how far it is off from multiple servers, and can see NTP select the best server to use, either the local Pi GPS PPS servers or one of several from the internet, either from the pool or from a list I have culled of better sites on the internet. It rarely chooses the internet servers, they have low jitter but their delays are a lot higher than the local Pi's. But it always looks at the quality of several servers and chooses the best.

Dimension 4, Bktimesync and other SNTP programs only look at one server at a time, so if it or the intervening network is having problems, the result can be bad and the time set incorrectly without notice, and jerking the system time every 5 minutes or whatever is not a good way to correct the system clock, it causes problems for programs that are doing realtime as the jerking interferes with their sense of time (for example each jerk could cause decode errors on programs like WSJT-X). Full NTP clients look at a list of servers and observe their performance, and choose the best one to follow while monitoring the others. It is very common for a usually good server to occasionally have problems, either the server itself gets busy with something (other workload, updates, client load, reboots) or the network between the server and your location has congestion that causes jitter and delays or packet losses. It is very common to get bad times from remote time servers, at least occasionally. So a quality filtering process is important to ensuring that your machine follows good time information. This is what NTP is developed and perfected to do.

73 de w6akb


On Tue, Jul 27, 2021 at 11:05 AM Michael Black via groups.io <mdblack98=yahoo.com@groups.io> wrote:
If you start it with -g it should sync immediately.


Open services and find Network Time Protocol -- stop it and add the -g switch -- then start it back up again and test.

Inline image



Mike W9MDB


On Tuesday, July 27, 2021, 12:47:16 PM CDT, Ron Schunk <ron051798@...> wrote:


I've been using Meinberg since February when I first got back on the air and also time.is ... when I bring my laptop back from 'sleep' mode I usually find that time.is never up to date...I always end up rebooting the laptop and then my time is exact...
Ron
WA8KQF

Virus-free. www.avast.com

On Mon, Jul 26, 2021 at 2:47 PM Kermit Lehman via groups.io <ktfrog007=aol.com@groups.io> wrote:
I have two computers I use for FT modes. As an experiment the one runs Dim4 and the other Meinberg. Both have worked well for me.

If you use Dim4, you need to find the closest open-access time server.  I use one from MIT, which is relatively nearby.  If you don't set Dim4 up properly in this regard, it won't work well.

73,
Ken, AB1J


-----Original Message-----
From: K0GU <k0gu@...>
To: main@WSJTX.groups.io
Sent: Mon, Jul 26, 2021 5:26 pm
Subject: Re: [WSJTX] Time Synch. #Timesync

Interesting, I have zero problems with Meinberg and until I switched had problems with DIM4 sometimes not finding the time server. Probably some setting I had wrong or I chose an intermittent time server. FWIW

gmendenh1947 if you have a callsign you might wish to create a signature line, or add your call to the post, so we have an idea who you are, or not. I'm going to guess you are one of the many Mendenhalls in the FCC data base that has a name starting with g.

--
73,  Jay  K0GU  DN70mq













locked Re: Class C Amplifier Application #transmit

Bill Somerville
 

On 27/07/2021 20:14, alanbh@... wrote:
FT8 and FT4 is a tone modulate SSB type signal.
Alan,

that is not a description of any modulation type used by WSJT-X. Frequency shift keyed signals are frequency modulated, they have no AM content so long as the whole bandwidth of the signal is transmitted as intended.

73
Bill
G4WJS.


locked Re: Class C Amplifier Application #transmit

Bill Somerville
 

On 27/07/2021 20:05, Bob McGraw - K4TAX wrote:

I've not seen any clear or definitive answer to the question "can one suddessfully run FT-8/4 or other WSJT-X modes via a Class C solid state VHF amplifier?"  Asking because I have a VHF amplifier which is not linear.

73

Bob, K4TAX
Bob,

sure, so long as the PA has sufficient harmonic suppression for Amateur Radio use. All the WSJT-X modes use constant envelope output and linear amplification is not required for that. Note that MSK144 is a little wider than most typical SSB transmit filters so truncation of the modulation frequency extremes may introduce enough AM content that could make your output, amplified by a non-linear PA, wider than that allowed in the sub-bands where WSJT-X modes are normally used. If you intend to use MSK144 with that PA you should probably check your Tx signal for IMD products before connecting to a high gain aerial.

73
Bill
G4WJS.


locked Re: Class C Amplifier Application #transmit

alanbh@...
 

The answer would be NO. FT8 and FT4 is a tone modulate SSB type signal. You cannot put an SSB or modulated signal through class C amplifier without distorting the signal. The maximum class you can put a modulated of SSB type signal through without or absolute minimal distortion is a class B Amplifier.

73, alan WA3EKL

----- Original Message -----
From: "Bob McGraw - K4TAX" <rmcgraw@...>
To: WSJTX@groups.io
Sent: Tuesday, July 27, 2021 7:05:24 PM
Subject: [WSJTX] Class C Amplifier Application #transmit


I've not seen any clear or definitive answer to the question "can one
suddessfully run FT-8/4 or other WSJT-X modes via a Class C solid state
VHF amplifier?"  Asking because I have a VHF amplifier which is not linear.

73

Bob, K4TAX


locked Class C Amplifier Application #transmit

Bob McGraw - K4TAX <rmcgraw@...>
 
Edited

I've not seen any clear or definitive answer to the question "can one successfully run FT-8/4 or other WSJT-X modes via a Class C solid-state VHF amplifier?"  Asking because I have a VHF amplifier which is not linear.

73

Bob, K4TAX


locked Re: Excessive audio from K3S connected to MAC - no level controls #macOS

Bill Somerville
 

On 27/07/2021 15:53, Gareth, M5KVK wrote:
This is not strictly WSJT-X related, but I'm not sure where else to ask without having to explain having a radio connected to a Mac :-)

I'm running 2.4.0 on my iMac (Big Sur) and my K3S is connected using USB. The K3S appears as two USB Audio CODECs in the Audio MIDI Setup tool - one each for input and output.
I can receive in WSJT-X if I select USB Audio CODEC 2 (the i/p device) but the average level is way too high ( 60db with only noise). Thus it overloads with strong signals.

Unfortunately, the input device has the level controls greyed out in the MIDI control panel, so I can't drop the level there; and of course WSJT-X has no i/p volume control.

Has anybody else experienced this problem? If so, how did you resolve it.
If you didn't, how is your K3S, Mac, WSJT-X audio chain configured?

73, Gareth - M5KVK
Hi Gareth,

lower the MENU: LIN OUT level in the K3(S) settings.

73
Bill
G4WJS.


locked Re: Ver 2.4.0 Setup Help #TechnicalHelpQuestion #Cat_RigControl

Dave Garber
 

You do not mention what you gave for cat control , a signalink is not a cat device


On Sun., Jul. 25, 2021, 12:49 a.m. Kenneth Blackwell, <klblackw38@...> wrote:

I am using the following equipment/software for operating on WSJT-X. I NEED help with CAT setup


FT-891 Radio

Signalink USB sound card
Raspbery Pi computer
Raspberry Buster OS
WSJT-X 2.4


I want to operate with CAT as I have in the past with earlier versions of WSJT-X.


Please provide input about the following setup items.


I Need: "CAT Control Serial Port " under Radio page

I previously used /dev/ttyUSB0 which is no longer available. Current choices are:

USB or /dev/tty/AMA0


I also need:

Sound Card Input and Output, UNDER Audio page

Previously I used: frontCARD=CODECDEV=0 for both input and output

This doesn't work and I can't find anything that does.

 




locked Re: Time Synch. #Timesync

Michael Black
 

If you start it with -g it should sync immediately.


Open services and find Network Time Protocol -- stop it and add the -g switch -- then start it back up again and test.

Inline image



Mike W9MDB


On Tuesday, July 27, 2021, 12:47:16 PM CDT, Ron Schunk <ron051798@...> wrote:


I've been using Meinberg since February when I first got back on the air and also time.is ... when I bring my laptop back from 'sleep' mode I usually find that time.is never up to date...I always end up rebooting the laptop and then my time is exact...
Ron
WA8KQF

Virus-free. www.avast.com

On Mon, Jul 26, 2021 at 2:47 PM Kermit Lehman via groups.io <ktfrog007=aol.com@groups.io> wrote:
I have two computers I use for FT modes. As an experiment the one runs Dim4 and the other Meinberg. Both have worked well for me.

If you use Dim4, you need to find the closest open-access time server.  I use one from MIT, which is relatively nearby.  If you don't set Dim4 up properly in this regard, it won't work well.

73,
Ken, AB1J


-----Original Message-----
From: K0GU <k0gu@...>
To: main@WSJTX.groups.io
Sent: Mon, Jul 26, 2021 5:26 pm
Subject: Re: [WSJTX] Time Synch. #Timesync

Interesting, I have zero problems with Meinberg and until I switched had problems with DIM4 sometimes not finding the time server. Probably some setting I had wrong or I chose an intermittent time server. FWIW

gmendenh1947 if you have a callsign you might wish to create a signature line, or add your call to the post, so we have an idea who you are, or not. I'm going to guess you are one of the many Mendenhalls in the FCC data base that has a name starting with g.

--
73,  Jay  K0GU  DN70mq










locked Re: Time Synch. #Timesync

Pietro Molina
 

I suggest BktTimeSync  


locked Re: Time Synch. #Timesync

Ron Schunk
 

I've been using Meinberg since February when I first got back on the air and also time.is ... when I bring my laptop back from 'sleep' mode I usually find that time.is never up to date...I always end up rebooting the laptop and then my time is exact...
Ron
WA8KQF

Virus-free. www.avast.com


On Mon, Jul 26, 2021 at 2:47 PM Kermit Lehman via groups.io <ktfrog007=aol.com@groups.io> wrote:
I have two computers I use for FT modes. As an experiment the one runs Dim4 and the other Meinberg. Both have worked well for me.

If you use Dim4, you need to find the closest open-access time server.  I use one from MIT, which is relatively nearby.  If you don't set Dim4 up properly in this regard, it won't work well.

73,
Ken, AB1J


-----Original Message-----
From: K0GU <k0gu@...>
To: main@WSJTX.groups.io
Sent: Mon, Jul 26, 2021 5:26 pm
Subject: Re: [WSJTX] Time Synch. #Timesync

Interesting, I have zero problems with Meinberg and until I switched had problems with DIM4 sometimes not finding the time server. Probably some setting I had wrong or I chose an intermittent time server. FWIW

gmendenh1947 if you have a callsign you might wish to create a signature line, or add your call to the post, so we have an idea who you are, or not. I'm going to guess you are one of the many Mendenhalls in the FCC data base that has a name starting with g.

--
73,  Jay  K0GU  DN70mq







locked Excessive audio from K3S connected to MAC - no level controls #macOS

Gareth, M5KVK
 

This is not strictly WSJT-X related, but I'm not sure where else to ask without having to explain having a radio connected to a Mac :-)

I'm running 2.4.0 on my iMac (Big Sur) and my K3S is connected using USB. The K3S appears as two USB Audio CODECs in the Audio MIDI Setup tool - one each for input and output.
I can receive in WSJT-X if I select USB Audio CODEC 2 (the i/p device) but the average level is way too high ( 60db with only noise). Thus it overloads with strong signals.

Unfortunately, the input device has the level controls greyed out in the MIDI control panel, so I can't drop the level there; and of course WSJT-X has no i/p volume control.

Has anybody else experienced this problem? If so, how did you resolve it.
If you didn't, how is your K3S, Mac, WSJT-X audio chain configured?

73, Gareth - M5KVK


locked Re: Mac M1 Memory Error

Bill Somerville
 

On 27/07/2021 05:06, Bob Murphy N1KWH via groups.io wrote:
Hi Gentlemen,

If you make a shell command file with the necessary command line entries and include it with startup items, then every time you reboot it will automatically set the parameters for WSJT-X on every reboot.
Regards
Bob
N1KWH
Bob,

the ReadMe.txt file available at the root of the WSJT-X installer DMG has instructions for preparing macOS systems for use with WSJT-X. The latest version (WSJT-X v2.5.0 RC3) has instructions that work with all macOS systems.

73
Bill
G4WJS.


locked Re: Mac M1 Memory Error

Bob Murphy N1KWH
 

Hi Gentlemen,

If you make a shell command file with the necessary command line entries and include it with startup items, then every time you reboot it will automatically set the parameters for WSJT-X on every reboot. 
Regards
Bob
N1KWH


locked Re: PTT Cat Error when not using PTT #Cat_RigControl

danzee <k2ywe@...>
 

Thank You - Success at last!
Adjusting the VOX delay down to minimum fixed the problem. it was up at some ungodly number.
I will try PTT later.
VRY 73
Dan



Sent from my Verizon, Samsung Galaxy smartphone


-------- Original message --------
From: Bill Somerville <g4wjs@...>
Date: 7/26/21 5:36 PM (GMT-05:00)
To: main@WSJTX.groups.io
Subject: Re: [WSJTX] PTT Cat Error when not using PTT #Cat_RigControl

On 26/07/2021 22:09, danzee via groups.io wrote:
> Fresh WSJT-X installation on fresh Windows7 SP1 machine.
> WSJT-X works and I'm able to make FT8 contacts (WSJT-X even controls
> the split transmit freq), but I get a Rig Control error message after
> each transmit cycle and have to check "retry" or "OK" & reconfigure. I
> have tried all combinations of handshake settings without success.
> I have had WSJT-X running on other Win7 machines and not experienced
> this error. I looked at the configuration file from my last WSJT-X
> installation and it was 8-2-N with no handshake for my FTdx-5K. Those
> settings still give me the error. I'm using VOX, not PTT and have
> WSJT-X set that way, i.e. VOX checked off.
> Rig Control error details:
>
> Hamlib error: Target VFO unaccessible
>
> newcat.c(1663):newcat_get_ptt return(0)
>
> newcat_set_freq: ptt still on...retry#0
>
> rig.c(1769):rig_set_freq return(12) while setting frequency
>
OM,

which version of WSJT-X are you using? If it is not WSJT-X v2.5.0 RC3
then can you try that please?

Your rig may require that "Settings->General->Allow Tx frequency changes
while transmitting" is not checked. When using VOX with rigs that don't
accept CAT QSY commands while transmitting you will have to reduce the
VOX hang delay to minimum. It is by far preferable to use a hard wired
PTT, particularly on rigs like yours where you can use either a CAT
command or RTS on the enhanced virtual serial port at zero extra cost.

73
Bill
G4WJS.

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