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Re: Elad S3 versus Perseus and FDM Duo
Conrad, PA5Y
I have a few antennas and a few more to put up this year. I think I have spent 8k or so.
Conrad
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Siegfried Jackstien via groups.io
Sent: 31 March 2022 22:46 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo
8k for antennas?? ok that gives you a 100 feet pole and a nice mulitiband yagi (like a big optibeam or similar) i only use wires thrown in some trees ... much cheaper and you have some spare money for rigs, amp etc. :-) dg9bfc sigi Am 31.03.2022 um 22:37 schrieb Conrad, PA5Y:
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Re: Keyboard shortcuts
Siegfried Jackstien
tx button?? F5 ... space bar (if focus of windows is on the tx button so it has to be used before with the mouse) ... or a midi deck (and click on tx button) or a serial to usb adaptor and a REAL ptt button (you even can connect a "normal" desktop mic or handheld mic to sdrc) frequency tune?? several options ... clicking on numbers, using
scroll wheel of mouse, or a midi deck used as a BIG VFO knob or
.... there are so many things in console to explain that we do not
have enough space here in this discussion forum :-) dg9bfc sigi ps to all users .. if you have problems with sdrc v3 ... just ask
and we do a teamviewer or anydesk meeting
Am 31.03.2022 um 09:13 schrieb Pierre
FK8IH:
New to SDR-Console and having used before Quisk, is there a shortcut like the "space bar" to trigger the PTT? Is there also a way to change the frequency digit by digit but I recognize typing a figure then typing the frequency in the opened window is convenient? |
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Re: Elad S3 versus Perseus and FDM Duo
Siegfried Jackstien
8k for antennas?? ok that gives you a 100 feet pole and a nice mulitiband yagi (like a big optibeam or similar) i only use wires thrown in some trees ... much cheaper and you
have some spare money for rigs, amp etc. :-) dg9bfc sigi Am 31.03.2022 um 22:37 schrieb Conrad,
PA5Y:
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Re: Elad S3 versus Perseus and FDM Duo
Conrad, PA5Y
Your thinking is all wrong Sigi, you need to spend it on antennas 😊 they represent the best value for money 😊 Of course, this is entirely academic because I no longer have 8k + GPB for radio.
I spent it on antennas.
Conrad
-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien via groups.io Sent: 31 March 2022 22:31 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo
8k??
outch ...
you can get a new shortwave rig, a new vhf uhf rig ... and have some spare for a kilowatt amp ... for 8k
and you wrote it STARTS at 8k ... guessing with options you can get to over 10 grand in the end
dg9bfc sigi
Am 31.03.2022 um 20:05 schrieb Simon Brown: > Price starts at about Euro 8k I think, then you add the options. > > Simon Brown, G4ELI > > -----Original Message----- > From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of > Conrad, PA5Y > Sent: 31 March 2022 18:48 > To: main@SDR-Radio.groups.io > Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo > > Hello Simon, it looks like a very capable piece of hardware. I looked > at the online shop and it appears to be unavailable now , do you have > any idea of what the price will be? The LO PN is without the > downconverter section is about the same as the S3 (from what I can > gather) but the SFDR with the downconverter is not great. It will be > very good on MW I expect. I am getting interested in MW DX. > > Noise figure @ 800MHz = 9dB with the preamp on, which means that you > will need an external LNA. So, you end up with about 75dB of dynamic > range in this region with an LNA. Also, the image rejection could have > done with being 20dB better. However, I am mindful that it works to > 8GHz. Image rejection can be improved by the use of a bandpass filter > for the band in question, so it is not a deal breaker. > > So, a very nice piece of test gear. > > It really depends on the price. > > Regards > > Conrad PA5Y > > > > > -----Original Message----- > From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of > Simon Brown via groups.io > Sent: 31 March 2022 16:15 > To: main@SDR-Radio.groups.io > Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo > > Conrad, > > FWIW I'm playing with the WinRadio Excelsior Ultra - now this is some > receiver! > > https://www.winradio.com/home/g69ddce.htm > > This is quiet! > > Simon Brown, G4ELI > > -----Original Message----- > From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of > Conrad, PA5Y > Sent: 30 March 2022 15:28 > To: main@SDR-Radio.groups.io > Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo > > Hello Brian > >> Yes sub 1dB noise figures definitely cost dynamic range. > That is true and unnecessary, perhaps I misunderstand but you seem to > be indicating that I am advocating sub 1dB noise figures on 144MHz. I > am not and Chris Bartram was absolutely right. > > I said, earlier in the thread. > > ....... dynamic range is certainly not optional. I put systems > together based upon total system analysis which includes both noise > figure and dynamic range. On 2m with a 1dB NF which is a little better > than needed for terrestrial operation in my semi-rural location. I use > the free AppCAD program for system noise figure and dynamic range > analysis, although a spreadsheet also works fine. > > I think that a system noise figure of 1dB on 2m is better than needed. > I agree that 2dB is good enough for terrestrial use and even then only > for the very fortunate. 1dB is slightly better than 2dB. For most > people who are not on EME, these days 3-4dB is adequate for > terrestrial use on 144 MHz due to manmade noise. Also in EU contests > (including the UKAC) you are better off prioritising dynamic range much of the time. > > Which is why I use a step attenuator after the first LNA stage, I can > adjust it extremely quickly depending on conditions. Try it, you will > find that is optimal for the EU VHF DXer who suffers from high station density. > > By the way sub 1dB noise figures on 432MHz and above are very > worthwhile and certainly not that difficult to achieve these days. > > 73 > > Conrad PA5Y > > > > -----Original Message----- > From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of > Brian Morrison via groups.io > Sent: 30 March 2022 14:52 > To: main@SDR-Radio.groups.io > Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo > > On Wed, 30 Mar 2022 11:22:30 +0000 > "Conrad, PA5Y" <g0ruz@...> wrote: > >> Yes sub 1dB noise figures definitely cost dynamic range. > Back in the day (i.e. about 1979/80) Chris Bartam G4DGU of muTek > determined that 144MHz system noise figures of less than 2dB for > terrestrial signals were unnecessary due to the total noise at the > antenna from sky and ground sources. The well-known muTek preamps were > designed to have a NF of ~0.9dB (using a BF981 or 3SK88 FET with > noiseless feedback) and then to allow a further 1dB contribution from > the rest of the receiver to minimise any reduction in dynamic range. > If you had the complete replacement muTek front-end which had a > high-level diode-ring mixer, class A LO amplifier chain and post-mixer > high IP3 IF amp then this DR reduction was much less but many of us had far less money then :(. > > I would not expect these external limitations to have changed in this > regard over the intervening 40+ years, although the radios have become > more expensive their performance has improved quite a bit in other respects. >
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Re: Elad S3 versus Perseus and FDM Duo
Siegfried Jackstien
8k??
toggle quoted message
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outch ... you can get a new shortwave rig, a new vhf uhf rig ... and have some spare for a kilowatt amp ... for 8k and you wrote it STARTS at 8k ... guessing with options you can get to over 10 grand in the end dg9bfc sigi Am 31.03.2022 um 20:05 schrieb Simon Brown: Price starts at about Euro 8k I think, then you add the options. |
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Re: Elad S3 versus Perseus and FDM Duo
OK,
Makes sense – I think it may have been £8k, not Euro 8k.
Simon Brown, G4ELI
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Curt Faulk
Sent: 31 March 2022 19:37 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo
I got a price quote from the US dealer and it was $9875. -- - + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Re: Elad S3 versus Perseus and FDM Duo
toggle quoted message
Show quoted text
-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 31 March 2022 19:18 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo That is too expensive for me then! For my needs I cannot justify it. Imagine the antennas you can buy with that sort of cash. However, I will be interested in your opinion. The 32MHz recoding BW is interesting for work purposes. Regards Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown via groups.io Sent: 31 March 2022 20:06 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Price starts at about Euro 8k I think, then you add the options. Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 31 March 2022 18:48 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Simon, it looks like a very capable piece of hardware. I looked at the online shop and it appears to be unavailable now , do you have any idea of what the price will be? The LO PN is without the downconverter section is about the same as the S3 (from what I can gather) but the SFDR with the downconverter is not great. It will be very good on MW I expect. I am getting interested in MW DX. Noise figure @ 800MHz = 9dB with the preamp on, which means that you will need an external LNA. So, you end up with about 75dB of dynamic range in this region with an LNA. Also, the image rejection could have done with being 20dB better. However, I am mindful that it works to 8GHz. Image rejection can be improved by the use of a bandpass filter for the band in question, so it is not a deal breaker. So, a very nice piece of test gear. It really depends on the price. Regards Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown via groups.io Sent: 31 March 2022 16:15 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Conrad, FWIW I'm playing with the WinRadio Excelsior Ultra - now this is some receiver! https://www.winradio.com/home/g69ddce.htm This is quiet! Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 30 March 2022 15:28 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Brian Yes sub 1dB noise figures definitely cost dynamic range.That is true and unnecessary, perhaps I misunderstand but you seem to be indicating that I am advocating sub 1dB noise figures on 144MHz. I am not and Chris Bartram was absolutely right. I said, earlier in the thread. ....... dynamic range is certainly not optional. I put systems together based upon total system analysis which includes both noise figure and dynamic range. On 2m with a 1dB NF which is a little better than needed for terrestrial operation in my semi-rural location. I use the free AppCAD program for system noise figure and dynamic range analysis, although a spreadsheet also works fine. I think that a system noise figure of 1dB on 2m is better than needed. I agree that 2dB is good enough for terrestrial use and even then only for the very fortunate. 1dB is slightly better than 2dB. For most people who are not on EME, these days 3-4dB is adequate for terrestrial use on 144 MHz due to manmade noise. Also in EU contests (including the UKAC) you are better off prioritising dynamic range much of the time. Which is why I use a step attenuator after the first LNA stage, I can adjust it extremely quickly depending on conditions. Try it, you will find that is optimal for the EU VHF DXer who suffers from high station density. By the way sub 1dB noise figures on 432MHz and above are very worthwhile and certainly not that difficult to achieve these days. 73 Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Brian Morrison via groups.io Sent: 30 March 2022 14:52 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo On Wed, 30 Mar 2022 11:22:30 +0000 "Conrad, PA5Y" <g0ruz@...> wrote: Yes sub 1dB noise figures definitely cost dynamic range.Back in the day (i.e. about 1979/80) Chris Bartam G4DGU of muTek determined that 144MHz system noise figures of less than 2dB for terrestrial signals were unnecessary due to the total noise at the antenna from sky and ground sources. The well-known muTek preamps were designed to have a NF of ~0.9dB (using a BF981 or 3SK88 FET with noiseless feedback) and then to allow a further 1dB contribution from the rest of the receiver to minimise any reduction in dynamic range. If you had the complete replacement muTek front-end which had a high-level diode-ring mixer, class A LO amplifier chain and post-mixer high IP3 IF amp then this DR reduction was much less but many of us had far less money then :(. I would not expect these external limitations to have changed in this regard over the intervening 40+ years, although the radios have become more expensive their performance has improved quite a bit in other respects. -- Brian G8SEZ -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Re: Elad S3 versus Perseus and FDM Duo
Curt Faulk
I got a price quote from the US dealer and it was $9875.
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Re: Elad S3 versus Perseus and FDM Duo
Conrad, PA5Y
That is too expensive for me then!
toggle quoted message
Show quoted text
For my needs I cannot justify it. Imagine the antennas you can buy with that sort of cash. However, I will be interested in your opinion. The 32MHz recoding BW is interesting for work purposes. Regards Conrad PA5Y -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown via groups.io Sent: 31 March 2022 20:06 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Price starts at about Euro 8k I think, then you add the options. Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 31 March 2022 18:48 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Simon, it looks like a very capable piece of hardware. I looked at the online shop and it appears to be unavailable now , do you have any idea of what the price will be? The LO PN is without the downconverter section is about the same as the S3 (from what I can gather) but the SFDR with the downconverter is not great. It will be very good on MW I expect. I am getting interested in MW DX. Noise figure @ 800MHz = 9dB with the preamp on, which means that you will need an external LNA. So, you end up with about 75dB of dynamic range in this region with an LNA. Also, the image rejection could have done with being 20dB better. However, I am mindful that it works to 8GHz. Image rejection can be improved by the use of a bandpass filter for the band in question, so it is not a deal breaker. So, a very nice piece of test gear. It really depends on the price. Regards Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown via groups.io Sent: 31 March 2022 16:15 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Conrad, FWIW I'm playing with the WinRadio Excelsior Ultra - now this is some receiver! https://www.winradio.com/home/g69ddce.htm This is quiet! Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 30 March 2022 15:28 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Brian Yes sub 1dB noise figures definitely cost dynamic range.That is true and unnecessary, perhaps I misunderstand but you seem to be indicating that I am advocating sub 1dB noise figures on 144MHz. I am not and Chris Bartram was absolutely right. I said, earlier in the thread. ....... dynamic range is certainly not optional. I put systems together based upon total system analysis which includes both noise figure and dynamic range. On 2m with a 1dB NF which is a little better than needed for terrestrial operation in my semi-rural location. I use the free AppCAD program for system noise figure and dynamic range analysis, although a spreadsheet also works fine. I think that a system noise figure of 1dB on 2m is better than needed. I agree that 2dB is good enough for terrestrial use and even then only for the very fortunate. 1dB is slightly better than 2dB. For most people who are not on EME, these days 3-4dB is adequate for terrestrial use on 144 MHz due to manmade noise. Also in EU contests (including the UKAC) you are better off prioritising dynamic range much of the time. Which is why I use a step attenuator after the first LNA stage, I can adjust it extremely quickly depending on conditions. Try it, you will find that is optimal for the EU VHF DXer who suffers from high station density. By the way sub 1dB noise figures on 432MHz and above are very worthwhile and certainly not that difficult to achieve these days. 73 Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Brian Morrison via groups.io Sent: 30 March 2022 14:52 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo On Wed, 30 Mar 2022 11:22:30 +0000 "Conrad, PA5Y" <g0ruz@...> wrote: Yes sub 1dB noise figures definitely cost dynamic range.Back in the day (i.e. about 1979/80) Chris Bartam G4DGU of muTek determined that 144MHz system noise figures of less than 2dB for terrestrial signals were unnecessary due to the total noise at the antenna from sky and ground sources. The well-known muTek preamps were designed to have a NF of ~0.9dB (using a BF981 or 3SK88 FET with noiseless feedback) and then to allow a further 1dB contribution from the rest of the receiver to minimise any reduction in dynamic range. If you had the complete replacement muTek front-end which had a high-level diode-ring mixer, class A LO amplifier chain and post-mixer high IP3 IF amp then this DR reduction was much less but many of us had far less money then :(. I would not expect these external limitations to have changed in this regard over the intervening 40+ years, although the radios have become more expensive their performance has improved quite a bit in other respects. -- Brian G8SEZ -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Re: Elad S3 versus Perseus and FDM Duo
Price starts at about Euro 8k I think, then you add the options.
toggle quoted message
Show quoted text
Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 31 March 2022 18:48 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Simon, it looks like a very capable piece of hardware. I looked at the online shop and it appears to be unavailable now , do you have any idea of what the price will be? The LO PN is without the downconverter section is about the same as the S3 (from what I can gather) but the SFDR with the downconverter is not great. It will be very good on MW I expect. I am getting interested in MW DX. Noise figure @ 800MHz = 9dB with the preamp on, which means that you will need an external LNA. So, you end up with about 75dB of dynamic range in this region with an LNA. Also, the image rejection could have done with being 20dB better. However, I am mindful that it works to 8GHz. Image rejection can be improved by the use of a bandpass filter for the band in question, so it is not a deal breaker. So, a very nice piece of test gear. It really depends on the price. Regards Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown via groups.io Sent: 31 March 2022 16:15 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Conrad, FWIW I'm playing with the WinRadio Excelsior Ultra - now this is some receiver! https://www.winradio.com/home/g69ddce.htm This is quiet! Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 30 March 2022 15:28 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Brian Yes sub 1dB noise figures definitely cost dynamic range.That is true and unnecessary, perhaps I misunderstand but you seem to be indicating that I am advocating sub 1dB noise figures on 144MHz. I am not and Chris Bartram was absolutely right. I said, earlier in the thread. ....... dynamic range is certainly not optional. I put systems together based upon total system analysis which includes both noise figure and dynamic range. On 2m with a 1dB NF which is a little better than needed for terrestrial operation in my semi-rural location. I use the free AppCAD program for system noise figure and dynamic range analysis, although a spreadsheet also works fine. I think that a system noise figure of 1dB on 2m is better than needed. I agree that 2dB is good enough for terrestrial use and even then only for the very fortunate. 1dB is slightly better than 2dB. For most people who are not on EME, these days 3-4dB is adequate for terrestrial use on 144 MHz due to manmade noise. Also in EU contests (including the UKAC) you are better off prioritising dynamic range much of the time. Which is why I use a step attenuator after the first LNA stage, I can adjust it extremely quickly depending on conditions. Try it, you will find that is optimal for the EU VHF DXer who suffers from high station density. By the way sub 1dB noise figures on 432MHz and above are very worthwhile and certainly not that difficult to achieve these days. 73 Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Brian Morrison via groups.io Sent: 30 March 2022 14:52 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo On Wed, 30 Mar 2022 11:22:30 +0000 "Conrad, PA5Y" <g0ruz@...> wrote: Yes sub 1dB noise figures definitely cost dynamic range.Back in the day (i.e. about 1979/80) Chris Bartam G4DGU of muTek determined that 144MHz system noise figures of less than 2dB for terrestrial signals were unnecessary due to the total noise at the antenna from sky and ground sources. The well-known muTek preamps were designed to have a NF of ~0.9dB (using a BF981 or 3SK88 FET with noiseless feedback) and then to allow a further 1dB contribution from the rest of the receiver to minimise any reduction in dynamic range. If you had the complete replacement muTek front-end which had a high-level diode-ring mixer, class A LO amplifier chain and post-mixer high IP3 IF amp then this DR reduction was much less but many of us had far less money then :(. I would not expect these external limitations to have changed in this regard over the intervening 40+ years, although the radios have become more expensive their performance has improved quite a bit in other respects. -- Brian G8SEZ -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Re: Keyboard shortcuts
Max
For the "user manual" go here:
https://www.sdr-radio.com/ Hover over menu headings at top of page for lots of drop-down information on features. There's lots of useful info. Max |
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Re: Keyboard shortcuts
Max
F5 for toggle TX on-off
To change individual digits, hover mouse over the required digit in either of the RX or TX DSP panels, then change that digit with mouse wheel, or click above or below that digit. To change by the step increment, cursor/arrow key left/right for step and cursor keys up/down for set step x10 Just in case you don't see the RX DSP panel active (pretty much essential) - "Receive" tab, then click "DSP": 73 Max |
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Re: Elad S3 versus Perseus and FDM Duo
Conrad, PA5Y
Hello Simon, it looks like a very capable piece of hardware. I looked at the online shop and it appears to be unavailable now , do you have any idea of what the price will be? The LO PN is without the downconverter section is about the same as the S3 (from what I can gather) but the SFDR with the downconverter is not great. It will be very good on MW I expect. I am getting interested in MW DX.
toggle quoted message
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Noise figure @ 800MHz = 9dB with the preamp on, which means that you will need an external LNA. So, you end up with about 75dB of dynamic range in this region with an LNA. Also, the image rejection could have done with being 20dB better. However, I am mindful that it works to 8GHz. Image rejection can be improved by the use of a bandpass filter for the band in question, so it is not a deal breaker. So, a very nice piece of test gear. It really depends on the price. Regards Conrad PA5Y -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown via groups.io Sent: 31 March 2022 16:15 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Conrad, FWIW I'm playing with the WinRadio Excelsior Ultra - now this is some receiver! https://www.winradio.com/home/g69ddce.htm This is quiet! Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 30 March 2022 15:28 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Brian Yes sub 1dB noise figures definitely cost dynamic range.That is true and unnecessary, perhaps I misunderstand but you seem to be indicating that I am advocating sub 1dB noise figures on 144MHz. I am not and Chris Bartram was absolutely right. I said, earlier in the thread. ....... dynamic range is certainly not optional. I put systems together based upon total system analysis which includes both noise figure and dynamic range. On 2m with a 1dB NF which is a little better than needed for terrestrial operation in my semi-rural location. I use the free AppCAD program for system noise figure and dynamic range analysis, although a spreadsheet also works fine. I think that a system noise figure of 1dB on 2m is better than needed. I agree that 2dB is good enough for terrestrial use and even then only for the very fortunate. 1dB is slightly better than 2dB. For most people who are not on EME, these days 3-4dB is adequate for terrestrial use on 144 MHz due to manmade noise. Also in EU contests (including the UKAC) you are better off prioritising dynamic range much of the time. Which is why I use a step attenuator after the first LNA stage, I can adjust it extremely quickly depending on conditions. Try it, you will find that is optimal for the EU VHF DXer who suffers from high station density. By the way sub 1dB noise figures on 432MHz and above are very worthwhile and certainly not that difficult to achieve these days. 73 Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Brian Morrison via groups.io Sent: 30 March 2022 14:52 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo On Wed, 30 Mar 2022 11:22:30 +0000 "Conrad, PA5Y" <g0ruz@...> wrote: Yes sub 1dB noise figures definitely cost dynamic range.Back in the day (i.e. about 1979/80) Chris Bartam G4DGU of muTek determined that 144MHz system noise figures of less than 2dB for terrestrial signals were unnecessary due to the total noise at the antenna from sky and ground sources. The well-known muTek preamps were designed to have a NF of ~0.9dB (using a BF981 or 3SK88 FET with noiseless feedback) and then to allow a further 1dB contribution from the rest of the receiver to minimise any reduction in dynamic range. If you had the complete replacement muTek front-end which had a high-level diode-ring mixer, class A LO amplifier chain and post-mixer high IP3 IF amp then this DR reduction was much less but many of us had far less money then :(. I would not expect these external limitations to have changed in this regard over the intervening 40+ years, although the radios have become more expensive their performance has improved quite a bit in other respects. -- Brian G8SEZ -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Re: Default audio volume?
jdow
Volume is saved with the favorites.
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{^_^} On 20220330 22:22:23, D M via groups.io
wrote:
Can somebody tell me where can I set the default audio volume instead of the original default value of 50. When i jump around the the favorites frequencies it gets reset to 50 regardless to what I changed to earlier. Is it one of the xml files i need to tweak ? |
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Re: Elad S3 versus Perseus and FDM Duo
Conrad,
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FWIW I'm playing with the WinRadio Excelsior Ultra - now this is some receiver! https://www.winradio.com/home/g69ddce.htm This is quiet! Simon Brown, G4ELI https://www.sdr-radio.com -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Conrad, PA5Y Sent: 30 March 2022 15:28 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo Hello Brian Yes sub 1dB noise figures definitely cost dynamic range.That is true and unnecessary, perhaps I misunderstand but you seem to be indicating that I am advocating sub 1dB noise figures on 144MHz. I am not and Chris Bartram was absolutely right. I said, earlier in the thread. ....... dynamic range is certainly not optional. I put systems together based upon total system analysis which includes both noise figure and dynamic range. On 2m with a 1dB NF which is a little better than needed for terrestrial operation in my semi-rural location. I use the free AppCAD program for system noise figure and dynamic range analysis, although a spreadsheet also works fine. I think that a system noise figure of 1dB on 2m is better than needed. I agree that 2dB is good enough for terrestrial use and even then only for the very fortunate. 1dB is slightly better than 2dB. For most people who are not on EME, these days 3-4dB is adequate for terrestrial use on 144 MHz due to manmade noise. Also in EU contests (including the UKAC) you are better off prioritising dynamic range much of the time. Which is why I use a step attenuator after the first LNA stage, I can adjust it extremely quickly depending on conditions. Try it, you will find that is optimal for the EU VHF DXer who suffers from high station density. By the way sub 1dB noise figures on 432MHz and above are very worthwhile and certainly not that difficult to achieve these days. 73 Conrad PA5Y -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Brian Morrison via groups.io Sent: 30 March 2022 14:52 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Elad S3 versus Perseus and FDM Duo On Wed, 30 Mar 2022 11:22:30 +0000 "Conrad, PA5Y" <g0ruz@...> wrote: Yes sub 1dB noise figures definitely cost dynamic range.Back in the day (i.e. about 1979/80) Chris Bartam G4DGU of muTek determined that 144MHz system noise figures of less than 2dB for terrestrial signals were unnecessary due to the total noise at the antenna from sky and ground sources. The well-known muTek preamps were designed to have a NF of ~0.9dB (using a BF981 or 3SK88 FET with noiseless feedback) and then to allow a further 1dB contribution from the rest of the receiver to minimise any reduction in dynamic range. If you had the complete replacement muTek front-end which had a high-level diode-ring mixer, class A LO amplifier chain and post-mixer high IP3 IF amp then this DR reduction was much less but many of us had far less money then :(. I would not expect these external limitations to have changed in this regard over the intervening 40+ years, although the radios have become more expensive their performance has improved quite a bit in other respects. -- Brian G8SEZ -- - + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Re: Default audio volume?
Max
I just had a quick look at the XML Favourites file export and see Simon says at top of file:
"The contents of this file must not be changed if the program is to operate correctly. To avoid problems, please do NOT edit this file." If you are not 100% comfortable with what you are doing then I suggest you stick to my first suggestion: Recall > Update > Re-Save each Favourite in turn that you wish to amend. Or use Simon's method of excluding the stored level when recalling from a Favourite. Untick "Apply Level": Max |
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Re: Default audio volume?
Max
On Thu, Mar 31, 2022 at 06:22 AM, D M wrote:
Can somebody tell me where can I set the default audio volume instead of the original default value of 50. Volume setting and also audio output source are both parameters stored with each Favourite. Or, as Simon says, you can exclude that parameter from recall if you wish.
See here:
https://www.sdr-radio.com/Favourites
To amend the stored value, easy route:
Recall Favourite, change volume setting, then "Update" Favourite.
To do all at once, using Favourites Organiser, export Favourites as XML. SAVE A SAFETY COPY.
Editing file in text editor (like Notepad), search for the volume parameter (sorry, I have not got time to search for what it is, but it will be pretty obvious) then "Find and Replace" for all or required entries. Then re-Import the amended Favourites file.
Hope it helps.
Max |
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Keyboard shortcuts
Pierre FK8IH <jb.gallauziaux@...>
New to SDR-Console and having used before Quisk, is there a shortcut like the "space bar" to trigger the PTT? Is there also a way to change the frequency digit by digit but I recognize typing a figure then typing the frequency in the opened window is convenient?
73 - Pierre - FK8IH |
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Re: Default audio volume?
You can’t but look at:
Simon Brown, G4ELI
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of D M via groups.io
Sent: 31 March 2022 06:22 To: main@SDR-Radio.groups.io Subject: [SDR-Radio] Default audio volume?
Can somebody tell me where can I set the default audio volume instead of the original default value of 50. When i jump around the the favorites frequencies it gets reset to 50 regardless to what I changed to earlier. Is it one of the xml files i need to tweak ? -- - + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. |
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Default audio volume?
D M
Can somebody tell me where can I set the default audio volume instead of the original default value of 50. When i jump around the the favorites frequencies it gets reset to 50 regardless to what I changed to earlier. Is it one of the xml files i need to tweak ?
Thanks deep |
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