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Re: How to monitor TX quality (Hermes Lite 2)
Max,
Yes there is a wat. Use the two tone generator built in Console and turn Drive only up to the points when you only see tour two tones in the middle of the 300 to 3000KHz SSB channel, and another
Max,
Yes there is a wat. Use the two tone generator built in Console and turn Drive only up to the points when you only see tour two tones in the middle of the 300 to 3000KHz SSB channel, and another
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By
jose maria trueba
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#54823
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Re: OFF TOPIC: Further COVID-19 Warning
Agreed!
Mike
By
N2MS
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#54822
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Re: OFF TOPIC: Further COVID-19 Warning
Sorry folks, but I'm with Dewey.
Over on the TS-590 groups site we had members posting the latest Covid-19 Memes to which they thought would brighten somebody's day.
Here was my post:
Kriss Kliegle
Sorry folks, but I'm with Dewey.
Over on the TS-590 groups site we had members posting the latest Covid-19 Memes to which they thought would brighten somebody's day.
Here was my post:
Kriss Kliegle
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By
Kriss Kliegle KA1GJU
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#54821
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Re: OFF TOPIC: Further COVID-19 Warning
Simon Brown, G4ELI
https://www.sdr-radio.com
Simon Brown, G4ELI
https://www.sdr-radio.com
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By
Simon Brown
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#54820
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Re: OFF TOPIC: Further COVID-19 Warning
Up yours with a pitchfork.
{+_+}
Up yours with a pitchfork.
{+_+}
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By
jdow
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#54819
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Re: OFF TOPIC: Further COVID-19 Warning
Bad taste! While I do see the sincere attempt at humor in these horrible times, there could very likely be members here suffering with COVID-19, or have very close loved ones who are. This is just a
Bad taste! While I do see the sincere attempt at humor in these horrible times, there could very likely be members here suffering with COVID-19, or have very close loved ones who are. This is just a
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By
Dewey
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#54818
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Re: OFF TOPIC: Further COVID-19 Warning
The WorthyValued Friends is one hurdle Tom.
First send somesamples of the sort of valuable things you would like to receive.
Address onrequest
Allan G3PIY
From:main@SDR-Radio.groups.io
The WorthyValued Friends is one hurdle Tom.
First send somesamples of the sort of valuable things you would like to receive.
Address onrequest
Allan G3PIY
From:main@SDR-Radio.groups.io
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By
Allan Isaacs
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#54817
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OFF TOPIC: Further COVID-19 Warning
Friends,
Please take very special care during this period.
If you die, your partner might sell all your gear for what they think you paid for it.
Even worse, your kids will just send it to
Friends,
Please take very special care during this period.
If you die, your partner might sell all your gear for what they think you paid for it.
Even worse, your kids will just send it to
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By
Tom Crosbie G6PZZ
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#54816
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Re: Notching out one frequency
Just an FYI...
The Elad S2 attenuator is actually 12db, not 20 as it inidcates in SDRC. It is the S1 that had the 20db attenuator. This issue has been mentioned before but it doesn't get
Just an FYI...
The Elad S2 attenuator is actually 12db, not 20 as it inidcates in SDRC. It is the S1 that had the 20db attenuator. This issue has been mentioned before but it doesn't get
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By
Tony_AD0VC
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#54815
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Re: Dead simple Arduino MIDI controller for PTT button.
Arduinos are nice :)
I've done something like that on my own using an Arduino Micro.
It's perfectly emulating a Midi Device when connected via USB. Sorry as i don't have a schematic of
Arduinos are nice :)
I've done something like that on my own using an Arduino Micro.
It's perfectly emulating a Midi Device when connected via USB. Sorry as i don't have a schematic of
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By
Christian Veith
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#54814
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Re: Notching out one frequency
Try that suggestion of Martin’s first George and use a variablecapacitor 500+500pF plus fixed of a few hundred pF to see the effect.
To get a really narrow filter with near vertical sides using
Try that suggestion of Martin’s first George and use a variablecapacitor 500+500pF plus fixed of a few hundred pF to see the effect.
To get a really narrow filter with near vertical sides using
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By
Allan Isaacs
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#54813
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Re: Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"
Solved..
After the previous uninstall and reinstall, I noted that I had an outstanding BIOS update due from Intel. I installed that update, and without changing anything else, the SDR server anager
Solved..
After the previous uninstall and reinstall, I noted that I had an outstanding BIOS update due from Intel. I installed that update, and without changing anything else, the SDR server anager
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By
Cathal Ferris
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#54812
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Re: Problems starting SDR Console server service - "Socket Bind Failure - Permission Denied"
Unfortunately, the port is not in use, or at least not showing as in use by any tools I currently have at my disposal.
Attached is the current "netstat -ano" output from an Administrator cmd window. I
Unfortunately, the port is not in use, or at least not showing as in use by any tools I currently have at my disposal.
Attached is the current "netstat -ano" output from an Administrator cmd window. I
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By
Cathal Ferris
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#54811
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Re: Notching out one frequency
On Mon, Mar 30, 2020 at 09:13 AM, Allan Isaacs wrote:
Just make a simple 1240KHz notch filter circa 50dB 10uH in series with a 1.2nF capacitor connected across the receiver input should do the
On Mon, Mar 30, 2020 at 09:13 AM, Allan Isaacs wrote:
Just make a simple 1240KHz notch filter circa 50dB 10uH in series with a 1.2nF capacitor connected across the receiver input should do the
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By
Martin
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#54810
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Re: How to monitor TX quality (Hermes Lite 2)
the spectrum display......... but how clean? To my eye it always looks a lot worse than what you see with received SSB signals from other stations?
Max,
I do not know if the TX display accurately
the spectrum display......... but how clean? To my eye it always looks a lot worse than what you see with received SSB signals from other stations?
Max,
I do not know if the TX display accurately
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By
Alan
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#54809
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Re: Dead simple Arduino MIDI controller for PTT button.
nice ... if you add a few more midifunctions (say a vfo wheel encoder?!?) ...
or 100 % overshoot for only ptt (cause an ftdi chip and cts pulled to ground does the same thing)
nice ... if you add a few more midifunctions (say a vfo wheel encoder?!?) ...
or 100 % overshoot for only ptt (cause an ftdi chip and cts pulled to ground does the same thing)
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By
Siegfried Jackstien
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#54808
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Re: Notching out one frequency
Hi George,
I lived for a number of years very close (<5km) to the main MW transmitters in Central Scotland and used a Wellbrook loop quite successfully. Overload was a problem when there were
Hi George,
I lived for a number of years very close (<5km) to the main MW transmitters in Central Scotland and used a Wellbrook loop quite successfully. Overload was a problem when there were
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By
Nicholas Shaxted
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#54807
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Re: How to monitor TX quality (Hermes Lite 2)
Hi Alan
So in other words, I should be looking for a clean looking signal in the spectrum display......... but how clean? To my eye it always looks a lot worse than what you see with received SSB
Hi Alan
So in other words, I should be looking for a clean looking signal in the spectrum display......... but how clean? To my eye it always looks a lot worse than what you see with received SSB
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By
Max
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#54806
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Re: Notching out one frequency
George
Just make a simple 1240KHz notch filtercirca 50dB and most of your worries should be over if their transmission isclean.
Having done that use the minimum amount ofgain.. = sufficient
George
Just make a simple 1240KHz notch filtercirca 50dB and most of your worries should be over if their transmission isclean.
Having done that use the minimum amount ofgain.. = sufficient
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By
Allan Isaacs
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#54805
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Re: Notching out one frequency
Very likely you can add attenuation beyond the Elad's 20 dB without affecting signal to noise ratios. I think your measurements suggested you had another external 20 dB attenuator. Note the amplitude
Very likely you can add attenuation beyond the Elad's 20 dB without affecting signal to noise ratios. I think your measurements suggested you had another external 20 dB attenuator. Note the amplitude
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By
jdow
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#54804
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