|
Kriss Kliegle KA1GJU
Vince,
I'll be more blunt about my post...
It appears your issues are because you are operating SDRC via a Spyserver. If you ditch the Spyserver and run your equipment via SDRC Server, your issues will be resolved.
Nothing more, nothing less.
73 Kriss KA1GJU
|
|
|
Kriss,
First, thank you for the hand-holding and blunt comment, I finally got the SDRC server manger to work, night and day results. Thank you again, have a good day.
Vincent
Sent from
Mail for Windows
toggle quoted message
Show quoted text
From: Kriss Kliegle KA1GJU
Sent: Sunday, November 27, 2022 5:42 AM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Attenuation
Vince,
I'll be more blunt about my post...
It appears your issues are because you are operating SDRC via a Spyserver. If you ditch the Spyserver and run your equipment via SDRC Server, your issues will be resolved.
Nothing more, nothing less.
73 Kriss KA1GJU
|
|
|
Hello gang. Interesting chat
about the various settings on different receivers. I know some
have already seen this (apologies to you). For those that have
not here is a video I made using console with my RSPdx as I
put in calibrated signal levels and changed combinations of
Visual gain, RF gain and IF gain.
I suggest running the video at
1.5X speed as I tend to put folks to sleep. And pse forgive
the jerky video as I was hand holding a camcorder in my left
hand.
The very last part of the
video was a pleasant surprise as I found a combination that
was not only linear in response over a fair range but was
accurate to within a dB (absolute).
https://www.youtube.com/watch?v=qHJE6wa9dVw
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/24/2022 10:45 PM, jdow wrote:
toggle quoted message
Show quoted text
He was going to redo "Visual Gain" to make it a real visual
gain control that simply scales the displays. As it is the last
I knew the visual gain control was a literal digital gain
applied to the entire system which led to some unfortunate
behavior. Simon was going to doctor this last I knew. But, I may
have missed his actually doing it as I do not think it's been
fixed yet.
{^_^}
On 20221124 17:44:05, Siegfried
Jackstien wrote:
don´t you have also "visual gain" in all sdr used?? that
could be done in 1 db steps so finetune of any sdr to correct
readings should be possible
if no visual gain in all sdr setups under "radio" settings
... then you could add it where that is missing
rtl for example has fine steps (but not exactly 1 db) and
visual gain in 5 db steps
maybe a finer resolution also in visual gain possible instead
coarse 5 db steps??
pluto has fine steps on gain AND visual gain (perfect!)
airspy hf+ has preamp on/off, att from 0-48 in 6 db stebs and
visual gain in 5 db steps (-40 to +30db) ... also there a
finer visual gain could be added in 1 db steps
i think if you have at least the visual gain in fine steps on
all different sdr setups a good s meter calibration should be
possible on all sdr
and visual gain does not depend on used hardware so change
that to finer steps should be easy.. not??
maybe a number box with up down buttons instead a dropdown
list?? (just thinking)
dg9bfc sigi
Am 23.11.2022 um 18:16 schrieb
Simon Brown:
OK,
Some of these radios
have fixed attenuation options, for example NetSDR. HF+ -
I'll have to check.
Greetings,
NetSDR, Icom RS-6500 and Airspy
Discovery
Vincent
Sent from Mail for Windows
Greetings,
I have always wondered why attenuation settings both
hardware and software or in 10db increments and not
variable? is this a hardware issue or software issue?
Many times, 10-30db increments is too much and
something between these settings is better.
Vincent
--
--
- + - + -
|
|
|
Kriss Kliegle KA1GJU
Vince, There's a pdf on how to use SDRC via the remote servers and how to set up your own server in the files section. I was there today looking for the one I had posted years ago for the group. This is mostly my work, but somebody added more stuff to it and more graphics, but posted it under my name. lol https://sdr-radio.groups.io/g/main/files/Version3ServerHelpFilesIt's time for me to do an updated version since some of the stuff has changed since 2/17/2018!!! 73 Kriss KA1gju
|
|
|
Thank you my friend
Sent from
Mail for Windows
toggle quoted message
Show quoted text
From: Kriss Kliegle KA1GJU
Sent: Sunday, November 27, 2022 5:10 PM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Attenuation
Vince,
There's a pdf on how to use SDRC via the remote servers and how to set up your own server in the files section. I was there today looking for the one I had posted years ago for the group. This is mostly my work, but somebody added more stuff to it and more
graphics, but posted it under my name. lol
https://sdr-radio.groups.io/g/main/files/Version3ServerHelpFiles
It's time for me to do an updated version since some of the stuff has changed since 2/17/2018!!!
73 Kriss KA1gju
|
|
|
Also THANK you Joanne for explaining why variable attenuators are difficult to implement from manufatures
Sent from
Mail for Windows
toggle quoted message
Show quoted text
From: vince battle
Sent: Sunday, November 27, 2022 5:16 PM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Attenuation
Thank you my friend
Sent from
Mail for Windows
Vince,
There's a pdf on how to use SDRC via the remote servers and how to set up your own server in the files section. I was there today looking for the one I had posted years ago for the group. This is mostly my work, but somebody added more stuff to it and more
graphics, but posted it under my name. lol
https://sdr-radio.groups.io/g/main/files/Version3ServerHelpFiles
It's time for me to do an updated version since some of the stuff has changed since 2/17/2018!!!
73 Kriss KA1gju
|
|
|
You're pleased. That is, in the end, what matters. I have STRONG
opinions about gain and filter distribution. (... and about how an
S-Meter should work in dBm mode.) I figure watching somebody else
limp in on settings like this is enough to spark a coronary
infarction. So I'll pass on viewing it.
{^_^}
On 20221127 16:32:00, Gedas wrote:
toggle quoted message
Show quoted text
Hello gang.
Interesting chat about the various settings on different
receivers. I know some have already seen this (apologies to
you). For those that have not here is a video I made using
console with my RSPdx as I put in calibrated signal levels
and changed combinations of Visual gain, RF gain and IF
gain.
I suggest
running the video at 1.5X speed as I tend to put folks to
sleep. And pse forgive the jerky video as I was hand holding
a camcorder in my left hand.
The very
last part of the video was a pleasant surprise as I found a
combination that was not only linear in response over a fair
range but was accurate to within a dB (absolute).
https://www.youtube.com/watch?v=qHJE6wa9dVw
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/24/2022 10:45 PM, jdow wrote:
He was going to redo "Visual Gain" to make it a real visual
gain control that simply scales the displays. As it is the
last I knew the visual gain control was a literal digital gain
applied to the entire system which led to some unfortunate
behavior. Simon was going to doctor this last I knew. But, I
may have missed his actually doing it as I do not think it's
been fixed yet.
{^_^}
On 20221124 17:44:05, Siegfried
Jackstien wrote:
don´t you have also "visual gain" in all sdr used?? that
could be done in 1 db steps so finetune of any sdr to
correct readings should be possible
if no visual gain in all sdr setups under "radio" settings
... then you could add it where that is missing
rtl for example has fine steps (but not exactly 1 db) and
visual gain in 5 db steps
maybe a finer resolution also in visual gain possible
instead coarse 5 db steps??
pluto has fine steps on gain AND visual gain (perfect!)
airspy hf+ has preamp on/off, att from 0-48 in 6 db stebs
and visual gain in 5 db steps (-40 to +30db) ... also there
a finer visual gain could be added in 1 db steps
i think if you have at least the visual gain in fine steps
on all different sdr setups a good s meter calibration
should be possible on all sdr
and visual gain does not depend on used hardware so change
that to finer steps should be easy.. not??
maybe a number box with up down buttons instead a dropdown
list?? (just thinking)
dg9bfc sigi
Am 23.11.2022 um 18:16 schrieb
Simon Brown:
OK,
Some of these radios
have fixed attenuation options, for example NetSDR. HF+ -
I'll have to check.
Greetings,
NetSDR, Icom RS-6500 and Airspy
Discovery
Vincent
Sent from Mail for Windows
Greetings,
I have always wondered why attenuation settings both
hardware and software or in 10db increments and not
variable? is this a hardware issue or software
issue? Many times, 10-30db increments is too much
and something between these settings is better.
Vincent
--
--
- + - + -
|
|
|
Don't put words in my mouth.
At no point did I say I was pleased. I said that I was
surprised to find a setting for RF, IF, and visual gain that
did a fair job of reporting the true absolute RF input signal
level. And if you did watch the video, in the beginning, I
stated that the goal was to simply see if 10 dB changes in RF
input level would result in 10 dB changes as reported by
console using different RF, IF, and visual gain settings.
Nothing more nothing less.
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/28/2022 12:18 AM, jdow wrote:
toggle quoted message
Show quoted text
You're pleased. That is, in the end, what matters. I have
STRONG opinions about gain and filter distribution. (... and
about how an S-Meter should work in dBm mode.) I figure watching
somebody else limp in on settings like this is enough to spark a
coronary infarction. So I'll pass on viewing it.
{^_^}
On 20221127 16:32:00, Gedas wrote:
Hello
gang. Interesting chat about the various settings on
different receivers. I know some have already seen this
(apologies to you). For those that have not here is a
video I made using console with my RSPdx as I put in
calibrated signal levels and changed combinations of
Visual gain, RF gain and IF gain.
I suggest
running the video at 1.5X speed as I tend to put folks to
sleep. And pse forgive the jerky video as I was hand
holding a camcorder in my left hand.
The very
last part of the video was a pleasant surprise as I found
a combination that was not only linear in response over a
fair range but was accurate to within a dB (absolute).
https://www.youtube.com/watch?v=qHJE6wa9dVw
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound.... This is why some people
appear bright until you hear them speak.
On 11/24/2022 10:45 PM, jdow wrote:
He was going to redo "Visual Gain" to make it a real visual
gain control that simply scales the displays. As it is the
last I knew the visual gain control was a literal digital
gain applied to the entire system which led to some
unfortunate behavior. Simon was going to doctor this last I
knew. But, I may have missed his actually doing it as I do
not think it's been fixed yet.
{^_^}
On 20221124 17:44:05, Siegfried
Jackstien wrote:
don´t you have also "visual gain" in all sdr used?? that
could be done in 1 db steps so finetune of any sdr to
correct readings should be possible
if no visual gain in all sdr setups under "radio"
settings ... then you could add it where that is missing
rtl for example has fine steps (but not exactly 1 db) and
visual gain in 5 db steps
maybe a finer resolution also in visual gain possible
instead coarse 5 db steps??
pluto has fine steps on gain AND visual gain (perfect!)
airspy hf+ has preamp on/off, att from 0-48 in 6 db stebs
and visual gain in 5 db steps (-40 to +30db) ... also
there a finer visual gain could be added in 1 db steps
i think if you have at least the visual gain in fine
steps on all different sdr setups a good s meter
calibration should be possible on all sdr
and visual gain does not depend on used hardware so
change that to finer steps should be easy.. not??
maybe a number box with up down buttons instead a
dropdown list?? (just thinking)
dg9bfc sigi
Am 23.11.2022 um 18:16 schrieb
Simon Brown:
OK,
Some of these radios
have fixed attenuation options, for example NetSDR. HF+
- I'll have to check.
Greetings,
NetSDR, Icom RS-6500 and Airspy
Discovery
Vincent
Sent from Mail for Windows
Greetings,
I have always wondered why attenuation settings
both hardware and software or in 10db increments
and not variable? is this a hardware issue or
software issue? Many times, 10-30db increments is
too much and something between these settings is
better.
Vincent
--
--
- + - + -
|
|
|
Nonetheless, optimum gain setup is unique to the front end and
the use. Some need absolute maximum sensitivity and have an
environment that supports it. Others have really bad environments
and must sacrifice sensitivity (noise figure) for dynamic range.
And most are somewhere in the middle.
S-Meter behavior is an ongoing discussion with Simon.
I will note that if you are trying to make SDRC and your front
end into a precision instrument I suspect you will find yourself
frustrated by odd details of the SDRC DSP implementation This
specifically is why I made my comment. It's been litigated before,
often, to no avail.
{^_^}
On 20221127 22:07:49, Gedas wrote:
toggle quoted message
Show quoted text
Don't put
words in my mouth. At no point did I say I was pleased. I
said that I was surprised to find a setting for RF, IF, and
visual gain that did a fair job of reporting the true
absolute RF input signal level. And if you did watch the
video, in the beginning, I stated that the goal was to
simply see if 10 dB changes in RF input level would result
in 10 dB changes as reported by console using different RF,
IF, and visual gain settings. Nothing more nothing less.
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/28/2022 12:18 AM, jdow wrote:
You're pleased. That is, in the end, what matters. I have
STRONG opinions about gain and filter distribution. (... and
about how an S-Meter should work in dBm mode.) I figure
watching somebody else limp in on settings like this is enough
to spark a coronary infarction. So I'll pass on viewing it.
{^_^}
On 20221127 16:32:00, Gedas wrote:
Hello
gang. Interesting chat about the various settings on
different receivers. I know some have already seen this
(apologies to you). For those that have not here is a
video I made using console with my RSPdx as I put in
calibrated signal levels and changed combinations of
Visual gain, RF gain and IF gain.
I
suggest running the video at 1.5X speed as I tend to put
folks to sleep. And pse forgive the jerky video as I was
hand holding a camcorder in my left hand.
The very
last part of the video was a pleasant surprise as I
found a combination that was not only linear in response
over a fair range but was accurate to within a dB
(absolute).
https://www.youtube.com/watch?v=qHJE6wa9dVw
Gedas, W8BYA
EN70JT Gallery at http://w8bya.com
Light travels faster than sound.... This is why some people
appear bright until you hear them speak.
On 11/24/2022 10:45 PM, jdow
wrote:
He was going to redo "Visual Gain" to make it a real
visual gain control that simply scales the displays. As it
is the last I knew the visual gain control was a literal
digital gain applied to the entire system which led to
some unfortunate behavior. Simon was going to doctor this
last I knew. But, I may have missed his actually doing it
as I do not think it's been fixed yet.
{^_^}
On 20221124 17:44:05, Siegfried
Jackstien wrote:
don´t you have also "visual gain" in all sdr used??
that could be done in 1 db steps so finetune of any sdr
to correct readings should be possible
if no visual gain in all sdr setups under "radio"
settings ... then you could add it where that is missing
rtl for example has fine steps (but not exactly 1 db)
and visual gain in 5 db steps
maybe a finer resolution also in visual gain possible
instead coarse 5 db steps??
pluto has fine steps on gain AND visual gain (perfect!)
airspy hf+ has preamp on/off, att from 0-48 in 6 db
stebs and visual gain in 5 db steps (-40 to +30db) ...
also there a finer visual gain could be added in 1 db
steps
i think if you have at least the visual gain in fine
steps on all different sdr setups a good s meter
calibration should be possible on all sdr
and visual gain does not depend on used hardware so
change that to finer steps should be easy.. not??
maybe a number box with up down buttons instead a
dropdown list?? (just thinking)
dg9bfc sigi
Am 23.11.2022 um 18:16
schrieb Simon Brown:
OK,
Some of these
radios have fixed attenuation options, for example
NetSDR. HF+ - I'll have to check.
Greetings,
NetSDR, Icom RS-6500 and
Airspy Discovery
Vincent
Sent from Mail for Windows
Greetings,
I have always wondered why attenuation settings
both hardware and software or in 10db increments
and not variable? is this a hardware issue or
software issue? Many times, 10-30db increments
is too much and something between these settings
is better.
Vincent
--
--
- + - + -
|
|
|
NOT nonetheless !
You are erroneously making
assumptions followed by false statements about what I want and
what I said. I make no statements of what I want other than to
satisfy my curiosity to see how my particular SDR and console
react to different RF input levels ! At no time do I ever
state I am trying to achieve or have found "optimum gain
setup" or that I am trying to turn my small SDR & console
into a "precision instrument".
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/28/2022 1:27 AM, jdow wrote:
toggle quoted message
Show quoted text
Nonetheless, optimum gain setup is unique to the front end and
the use. Some need absolute maximum sensitivity and have an
environment that supports it. Others have really bad
environments and must sacrifice sensitivity (noise figure) for
dynamic range. And most are somewhere in the middle.
S-Meter behavior is an ongoing discussion with Simon.
I will note that if you are trying to make SDRC and your front
end into a precision instrument I suspect you will find yourself
frustrated by odd details of the SDRC DSP implementation This
specifically is why I made my comment. It's been litigated
before, often, to no avail.
{^_^}
On 20221127 22:07:49, Gedas wrote:
Don't put
words in my mouth. At no point did I say I was pleased. I
said that I was surprised to find a setting for RF, IF,
and visual gain that did a fair job of reporting the true
absolute RF input signal level. And if you did watch the
video, in the beginning, I stated that the goal was to
simply see if 10 dB changes in RF input level would result
in 10 dB changes as reported by console using different
RF, IF, and visual gain settings. Nothing more nothing
less.
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound.... This is why some people
appear bright until you hear them speak.
On 11/28/2022 12:18 AM, jdow wrote:
You're pleased. That is, in the end, what matters. I have
STRONG opinions about gain and filter distribution. (... and
about how an S-Meter should work in dBm mode.) I figure
watching somebody else limp in on settings like this is
enough to spark a coronary infarction. So I'll pass on
viewing it.
{^_^}
On 20221127 16:32:00, Gedas
wrote:
Hello
gang. Interesting chat about the various settings on
different receivers. I know some have already seen
this (apologies to you). For those that have not here
is a video I made using console with my RSPdx as I put
in calibrated signal levels and changed combinations
of Visual gain, RF gain and IF gain.
I
suggest running the video at 1.5X speed as I tend to
put folks to sleep. And pse forgive the jerky video as
I was hand holding a camcorder in my left hand.
The
very last part of the video was a pleasant surprise as
I found a combination that was not only linear in
response over a fair range but was accurate to within
a dB (absolute).
https://www.youtube.com/watch?v=qHJE6wa9dVw
Gedas, W8BYA
EN70JT Gallery at http://w8bya.com
Light travels faster than sound.... This is why some
people appear bright until you hear them speak.
On 11/24/2022 10:45 PM, jdow
wrote:
He was going to redo "Visual Gain" to make it a real
visual gain control that simply scales the displays. As
it is the last I knew the visual gain control was a
literal digital gain applied to the entire system which
led to some unfortunate behavior. Simon was going to
doctor this last I knew. But, I may have missed his
actually doing it as I do not think it's been fixed yet.
{^_^}
On 20221124 17:44:05,
Siegfried Jackstien wrote:
don´t you have also "visual gain" in all sdr used??
that could be done in 1 db steps so finetune of any
sdr to correct readings should be possible
if no visual gain in all sdr setups under "radio"
settings ... then you could add it where that is
missing
rtl for example has fine steps (but not exactly 1 db)
and visual gain in 5 db steps
maybe a finer resolution also in visual gain possible
instead coarse 5 db steps??
pluto has fine steps on gain AND visual gain
(perfect!)
airspy hf+ has preamp on/off, att from 0-48 in 6 db
stebs and visual gain in 5 db steps (-40 to +30db) ...
also there a finer visual gain could be added in 1 db
steps
i think if you have at least the visual gain in fine
steps on all different sdr setups a good s meter
calibration should be possible on all sdr
and visual gain does not depend on used hardware so
change that to finer steps should be easy.. not??
maybe a number box with up down buttons instead a
dropdown list?? (just thinking)
dg9bfc sigi
Am 23.11.2022 um 18:16
schrieb Simon Brown:
OK,
Some of these
radios have fixed attenuation options, for example
NetSDR. HF+ - I'll have to check.
Greetings,
NetSDR, Icom RS-6500 and
Airspy Discovery
Vincent
Sent from Mail for Windows
Greetings,
I have always wondered why attenuation
settings both hardware and software or in 10db
increments and not variable? is this a
hardware issue or software issue? Many times,
10-30db increments is too much and something
between these settings is better.
Vincent
--
--
- + -
+ -
|
|
|
Kriss Kliegle KA1GJU
You wouldn't happen to have an RSPA 1A in your arsenal? Would be interesting to see just how poorly I operate mine.
I still have one left on my server, but I'd rather use the Airspy HF Discovery to to less fiddling to get 'decent' results.
Plus the three other SDR's on that server have to have an AM BC filter since the RSPA1A gets swamped with images. Lightning
took the other two our years ago. LOL
They'll be no tears shed when I can remove it and the AM BC filter it requires on "KA1GJU Super Station #2" and allow users to use that site for AM DXing.
The RF Gain in the radio settings are vastly different, mine only has 0 thru 9 and not linear, hence my asking. Plus the IF Gain has to be in Manual or there will be serious pumping of the AGC if any strong signals appear in the band.
73 Kriss KA1GJU
|
|
|
Brent Seres/ VE3CUS
I have an RSP2 and I had to build a notch filter to eliminate overload from our local 800 khz station.
|
|
|
I'm done. You're touchier than I usually am.
{+_+}
On 20221128 06:11:17, Gedas wrote:
toggle quoted message
Show quoted text
NOT
nonetheless !
You are
erroneously making assumptions followed by false statements
about what I want and what I said. I make no statements of
what I want other than to satisfy my curiosity to see how my
particular SDR and console react to different RF input
levels ! At no time do I ever state I am trying to achieve
or have found "optimum gain setup" or that I am trying to
turn my small SDR & console into a "precision
instrument".
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/28/2022 1:27 AM, jdow wrote:
Nonetheless, optimum gain setup is unique to the front end
and the use. Some need absolute maximum sensitivity and have
an environment that supports it. Others have really bad
environments and must sacrifice sensitivity (noise figure) for
dynamic range. And most are somewhere in the middle.
S-Meter behavior is an ongoing discussion with Simon.
I will note that if you are trying to make SDRC and your
front end into a precision instrument I suspect you will find
yourself frustrated by odd details of the SDRC DSP
implementation This specifically is why I made my comment.
It's been litigated before, often, to no avail.
{^_^}
On 20221127 22:07:49, Gedas wrote:
Don't
put words in my mouth. At no point did I say I was
pleased. I said that I was surprised to find a setting
for RF, IF, and visual gain that did a fair job of
reporting the true absolute RF input signal level. And
if you did watch the video, in the beginning, I stated
that the goal was to simply see if 10 dB changes in RF
input level would result in 10 dB changes as reported by
console using different RF, IF, and visual gain
settings. Nothing more nothing less.
Gedas, W8BYA
EN70JT Gallery at http://w8bya.com
Light travels faster than sound.... This is why some people
appear bright until you hear them speak.
On 11/28/2022 12:18 AM, jdow
wrote:
You're pleased. That is, in the end, what matters. I have
STRONG opinions about gain and filter distribution. (...
and about how an S-Meter should work in dBm mode.) I
figure watching somebody else limp in on settings like
this is enough to spark a coronary infarction. So I'll
pass on viewing it.
{^_^}
On 20221127 16:32:00, Gedas
wrote:
Hello
gang. Interesting chat about the various settings on
different receivers. I know some have already seen
this (apologies to you). For those that have not
here is a video I made using console with my RSPdx
as I put in calibrated signal levels and changed
combinations of Visual gain, RF gain and IF gain.
I
suggest running the video at 1.5X speed as I tend to
put folks to sleep. And pse forgive the jerky video
as I was hand holding a camcorder in my left hand.
The
very last part of the video was a pleasant surprise
as I found a combination that was not only linear in
response over a fair range but was accurate to
within a dB (absolute).
https://www.youtube.com/watch?v=qHJE6wa9dVw
Gedas, W8BYA
EN70JT Gallery at http://w8bya.com
Light travels faster than sound.... This is why some
people appear bright until you hear them speak.
On 11/24/2022 10:45 PM, jdow
wrote:
He was going to redo "Visual Gain" to make it a real
visual gain control that simply scales the displays.
As it is the last I knew the visual gain control was a
literal digital gain applied to the entire system
which led to some unfortunate behavior. Simon was
going to doctor this last I knew. But, I may have
missed his actually doing it as I do not think it's
been fixed yet.
{^_^}
On 20221124 17:44:05,
Siegfried Jackstien wrote:
don´t you have also "visual gain" in all sdr used??
that could be done in 1 db steps so finetune of any
sdr to correct readings should be possible
if no visual gain in all sdr setups under "radio"
settings ... then you could add it where that is
missing
rtl for example has fine steps (but not exactly 1
db) and visual gain in 5 db steps
maybe a finer resolution also in visual gain
possible instead coarse 5 db steps??
pluto has fine steps on gain AND visual gain
(perfect!)
airspy hf+ has preamp on/off, att from 0-48 in 6 db
stebs and visual gain in 5 db steps (-40 to +30db)
... also there a finer visual gain could be added in
1 db steps
i think if you have at least the visual gain in
fine steps on all different sdr setups a good s
meter calibration should be possible on all sdr
and visual gain does not depend on used hardware so
change that to finer steps should be easy.. not??
maybe a number box with up down buttons instead a
dropdown list?? (just thinking)
dg9bfc sigi
Am 23.11.2022 um 18:16
schrieb Simon Brown:
OK,
Some of these
radios have fixed attenuation options, for example
NetSDR. HF+ - I'll have to check.
Greetings,
NetSDR, Icom RS-6500 and
Airspy Discovery
Vincent
Sent from Mail for Windows
Greetings,
I have always wondered why attenuation
settings both hardware and software or in
10db increments and not variable? is this a
hardware issue or software issue? Many
times, 10-30db increments is too much and
something between these settings is better.
Vincent
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