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Re: CW Offset
Carl Moreschi <n4py3@...>
No. I'm just saying how my software solves this as a suggestion to Simon. It's how to code this situation.
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Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 4/30/2019 10:29 AM, Paul Christensen wrote:
Carl, |
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Re: CW Offset
Paul Christensen <w9ac@...>
Carl,
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Perhaps you can reply with an example of your filter setting and I'll try that as an interim solution. Thanks! Paul -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Carl Moreschi Sent: Tuesday, April 30, 2019 10:25 AM To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] CW Offset No. The filter is adjusted so that it goes from zero to the hi end but not centered on the signal. The normal thing would be for the filter to go below zero if it is centered on the signal but that's not at all desirable. So I just move the filter so it starts at zero and is no longer centered on the signal just like you had used PBT to do it. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 4/30/2019 10:20 AM, Paul Christensen wrote: Carl, |
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Re: CW Offset
Paul,
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I've noted this issue, FWIW the CW filter is designed to be symmetric around the center frequency, so if the center frequency is 500Hz then the filter is OK up to 100Hz; above 1000Hz the logic breaks down. Obviously it's a weakness in the code 😊 . Simon Brown, G4ELI www.sdr-radio.com -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Paul Christensen Sent: 30 April 2019 15:21 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] CW Offset Carl, But then doesn't the true frequency display shift by the amount of the offset? I suppose that's a temporary fix but certainly an annoyance. Paul, W9AC -----Original Message----- From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Carl Moreschi Sent: Tuesday, April 30, 2019 10:11 AM To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] CW Offset What I do is once the BW exceed 2 times the sidetone, I just put the signal at the sidetone offset rather than the BW center. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 4/30/2019 10:04 AM, Simon Brown wrote: Max, |
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Re: CW Offset
Carl Moreschi <n4py3@...>
No. The filter is adjusted so that it goes from zero to the hi end but not centered on the signal. The normal thing would be for the filter to go below zero if it is centered on the signal but that's not at all desirable. So I just move the filter so it starts at zero and is no longer centered on the signal just like you had used PBT to do it.
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Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 4/30/2019 10:20 AM, Paul Christensen wrote:
Carl, |
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Re: CW Offset
Paul Christensen <w9ac@...>
Carl,
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But then doesn't the true frequency display shift by the amount of the offset? I suppose that's a temporary fix but certainly an annoyance. Paul, W9AC -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Carl Moreschi Sent: Tuesday, April 30, 2019 10:11 AM To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] CW Offset What I do is once the BW exceed 2 times the sidetone, I just put the signal at the sidetone offset rather than the BW center. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 4/30/2019 10:04 AM, Simon Brown wrote: Max, |
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Re: CW Offset
Carl Moreschi <n4py3@...>
What I do is once the BW exceed 2 times the sidetone, I just put the signal at the sidetone offset rather than the BW center.
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Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 4/30/2019 10:04 AM, Simon Brown wrote:
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Re: CW Offset
Max,
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At the moment it would require some brain power to enable what's wanted. I'll think about this, but at the moment it's safest no to bodge the code. Simon Brown, G4ELI www.sdr-radio.com -----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Max Mucci, N5NHJ via Groups.Io Sent: 30 April 2019 14:50 To: Paul Christensen <main@SDR-Radio.groups.io> Subject: Re: [SDR-Radio] CW Offset Hello Paul, No workaround here, your CW filter bandwidth is limited by double of the sidetone frequency. Simon changed the modes (CW, RTTY) offset/center frequency approach in V3, no way to go back. ---------------------- 73 de Max, N5NHJ (I8NHJ) Tuesday, April 30, 2019, 6:55:09 AM, you wrote: I’m still seeing a CW offset error when the CW filter bandwidth For example, if my CW sidetone frequency is 600 Hz and I configure a Transceiver is an ANAN 7000DLE running SDR Console v3.0.7. Paul, W9AC |
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Re: CW Offset
Hello Paul,
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No workaround here, your CW filter bandwidth is limited by double of the sidetone frequency. Simon changed the modes (CW, RTTY) offset/center frequency approach in V3, no way to go back. ---------------------- 73 de Max, N5NHJ (I8NHJ) Tuesday, April 30, 2019, 6:55:09 AM, you wrote: I’m still seeing a CW offset error when the CW filter bandwidth For example, if my CW sidetone frequency is 600 Hz and I configure Transceiver is an ANAN 7000DLE running SDR Console v3.0.7. Paul, W9AC |
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Anan 8000
George Steube <at6c@...>
Hi Simon,
I have been using SDR v 3.0.7 with my A8K.?? Is there anyway to calibrate the PA output by band similar to HPSDR??? The problem I am having is that when I use tune the Drive goes to 10 and the radio power is 159W on my watt meter.?? Also how do I set the drive level I when tune is used??? Since the drive vs power out of the Anan radios is nonlinear I normally calibrate the PA to deliver 50 watts at a drive setting of 50.?? This allows for fine adjustment of high gain amplifiers. 73, George W2GS |
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CW Offset
Paul Christensen <w9ac@...>
I’m still seeing a CW offset error when the CW filter bandwidth exceeds the sidetone frequency. As the filter bandwidth increases beyond that of the sidetone frequency, the CW pitch increases. CW pitch should remain constant regardless of the filter bandwidth chosen.
For example, if my CW sidetone frequency is 600 Hz and I configure a 2.4 kHz CW filter, Low is set to 0 and High is set to 2.4kHz. That creates a received CW pitch of 1.2 kHz when I’m on the other station’s frequency. There’s no means available (that I can determine) to offset the pitch from 0 Hz to keep a 600 Hz sidetone.
Transceiver is an ANAN 7000DLE running SDR Console v3.0.7.
Paul, W9AC |
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Re: Lime SDR transmit spurii
I haven’t fired up my recently acquired TS940S or FT726R yet Simon but I’m sure they’ll be better than the Lime. My pockets aren’t deep enough to even look at pictures of the TS890S although I did once buy a brand new HW5400 kit which I concealed in my suitcase.
I treat these SDRs as just a bit of fun, or actually a lot of fun given the rather nice program you’ve turned out to support them. I’ll be looking a bit more at the transmit performance of the Lime later. I hadn’t noticed until today the earlier comments dating from February but it seems a few others are finding similar results to mine. There’s also talk about newer firmware which may help to improve transmit performance but comments about “bricking” put me off slightly. I’ll report progress here… http://www.radiomuseum.co.uk/converter.html Allan G3PIY From:
main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Simon Brown
But,
The Chinese company making Hermes lite will still be selling units. Wait until I have it supported, will be a very good HF SDR for ~ $300. Not in the TS-890S class, but if you’re kind to it then the results should be very pleasing.
Simon Brown, G4ELI
From: main@SDR-Radio.groups.io
<main@SDR-Radio.groups.io> On Behalf Of Leon Koning
Sent: 29 April 2019 20:52 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Lime SDR transmit spurii
As for the Hermes, the website say: limited time group buy and will close on April 1... Does anyone have experience with the HackRF? Does it have a cleaner TX signal? Prices are very acceptable now https://nl.aliexpress.com/wholesale?catId=0&initiative_id=AS_20190429114857&SearchText=sdr+transceiver
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Re: Selecting RF64 but not getting it
Ken Alexander
No worries Simon. At least it records everything! No luck recording last night. A series of thunderstorms hit just as the recording was to begin at 11:30 PM. Our power went out shortly after and we're still without electricity now at 6:30 AM. On Tue, Apr 30, 2019, 00:49 Simon Brown <simon@...> wrote:
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Anan 8000
George Steube <at6c@...>
Hi Simon,
I have been using SDR v 3.0.7 with my A8K.?? Is there anyway to calibrate the PA output by band similar to HPSDR??? The problem I am having is that when I use tune the Drive goes to 10 and the radio power is 159W on my watt meter.?? How do I set the drive level I when tune is used??? Since the drive vs power out of the Anan radios is nonlinear I normally calibrate the PA to deliver 50 watts at a drive setting of 50.?? This allows for fine adjustment of high gain amplifiers. 73, George W2GS |
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Re: Lime SDR transmit spurii
But,
The Chinese company making Hermes lite will still be selling units. Wait until I have it supported, will be a very good HF SDR for ~ $300. Not in the TS-890S class, but if you’re kind to it then the results should be very pleasing.
Simon Brown, G4ELI
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Leon Koning
As for the Hermes, the website say: limited time group buy and will close on April 1... Does anyone have experience with the HackRF? Does it have a cleaner TX signal? Prices are very acceptable now https://nl.aliexpress.com/wholesale?catId=0&initiative_id=AS_20190429114857&SearchText=sdr+transceiver |
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Re: Lime SDR transmit spurii
Leon Koning
As for the Hermes, the website say: limited time group buy and will close on April 1... Does anyone have experience with the HackRF? Does it have a cleaner TX signal? Prices are very acceptable now https://nl.aliexpress.com/wholesale?catId=0&initiative_id=AS_20190429114857&SearchText=sdr+transceiver |
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Re: Audio output to VAC not working
Frank,
Thanks for the feedback. I’ve made it more obvious that the Devices window is not where you make the audio device selection. With luck this will remove any confusion for other users.
Simon Brown, G4ELI
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Frank
Thanks to both Barry and Simon for the replies -- it's fixed now. |
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swskeds frequency list
It has been some while ago when this topic was discussed, so for anyone who joined later and wishes to have a very extensive frequency database then join swskeds@groups.io |
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Re: Audio output to VAC not working
Frank O'Donnell K6FOD
Thanks to both Barry and Simon for the replies -- it's fixed now.
My problem was I was trying to select the playback device in SDR Console 3.0.2 by going to Tools > Settings > Options > Audio > Playback > Devices, and selecting one of the Muzychenko VAC lines listed there. For some reason, if I highlighted one of the lines and clicked on "OK," the selection didn't "take," and no audio showed up as reaching the VAC line or the end app. However, I then followed Barry's suggestion, and selected the output device from the dropdown under Receive on the left side of the SDR Console screen. (The dropdown initially was just labeled "Default," so it didn't click for me that it was for playback device selection.) Now everything is working great. I should add that after trying a number of different SDR control programs, SDR Console is my favorite. I'll be trying to use it with all my SDRs (Perseus, Elad, Airspy, SDRplay) whenever possible. |
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Re: Lime SDR transmit spurii
Exactly the same spurii with lower drive Sigi Reducing the drive results in an apparently cleaner output but as you increase the sensitivity of the spectrum analyser you see exactly the same group of signals so lack of linearity isn’t the reason, and there’s nothing on the low side of the fundamental; all the spurii are on the high side. The distance between the signals seems to be precisely 250KHz. I need to check other frequencies. I’ve only checked 100MHz so far. Allan G3PIY From: main@SDR-Radio.groups.io
[mailto:main@SDR-Radio.groups.io] On Behalf Of Siegfried Jackstien
Sent: 29 April 2019 18:51 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Lime SDR transmit spurii
question ... do you see same spurii with lower drive?? i also have the same with pluto ... but only with hig power ... a bit lower drive and signal is cleaner ... but only 20 db down??? no ... with higher output i have some signals around 45 db down ... and when i take lower power those signal are more 50 to 60 db down ... so i would say clean for normal use greetz sigi dg9bfc
Am 29.04.2019 um 15:24 schrieb Allan Isaacs:
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Re: Lime SDR transmit spurii
Siegfried Jackstien
question ... do you see same spurii with lower drive?? i also have the same with pluto ... but only with hig power ... a bit lower drive and signal is cleaner ... but only 20 db down??? no ... with higher output i have some signals around 45 db down ... and when i take lower power those signal are more 50 to 60 db down ... so i would say clean for normal use greetz sigi dg9bfc
Am 29.04.2019 um 15:24 schrieb Allan
Isaacs:
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