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Re: Virtual Audio Cable update?
Finndx
So my idea is indeed working!!! It's only just that I assumed VB Audio Cable is capable of 192kHz as it lets to select that rate...
Well it's not. With HDSDR I couldn't notice it since HDSDR has not RDS recoding of it's own. But this can be easily noticed with SDR# when it's fed with IQ from SDR Console's Skimmer output via VB Audio HiFi Cable. SDR# shows RDS well this way and also let's partial RDS data stream through via regular VB Audio Cable to RDSspy. But the question remains what are the choices to have two instances of 192kHz cabable VACs as regular VB-Audio Cable isn't enough. I'm suprised that it took TWO YEARS and nobody noticed what was actually wrong with my experiments as the idea was indeed working. I didn't get any comments on my video during all this time but I was so close to the solution. Now just to find a way to get another genuine 192kHz VAC. Thanks for further developing my idea |
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Re: Lime Mini - HF
jdow
The switching diodes need to have their switching current isolated form the signal path. That isolation probably is beginning to become ineffective by the time you get down to 100 MHz. PERHAPS an external inductor on the switch drive pin might help - if there is no internal switch driver.
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{^_^} On 20200506 04:18:43, Siegfried Jackstien wrote:
the data sheet say you need an external cap for decoupling ... if there would be an internal cap there would be no need for an external one |
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Re: Hermes-Lite 2 Available
Max
No worries Adam. Good decision. I don't feel you will regret it. I love mine as you can probably tell.
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Feels like a "real SDR" but without the eye-watering price. It's just great fun, and for me that's what the whole hobby is about. 73 Max On Wed, May 6, 2020 at 12:24 PM, ADAM HOGG wrote: Hi Max |
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Re: Lime Mini - HF
jose maria trueba
Gains are not flat in a wide frequency range. Less level at lower freqs is perfect to flatten the overall gain after adding an external 1W preamplifier that may exhibits a 35dB gain at 1MHZ but only 25dB at 30MHz. To get 1w in a 35dB gain preamplifier we just need -5dBm from Lime at 1.8MHz and 5dBm at 30MHz. The small capacitors inside Lime have the effect of increasing power at higher freqs at the expense of decreasing at lower freqs. No problem at all. |
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Re: Virtual Audio Cable update?
Jim Smith G0OFE
Thanks Geoff. This is all sorted now. Updating VAC removed
my issue. ================================
Jim, Bournemouth, Dorset. IO90BR. Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers 8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF On 06/05/2020 12:36, geoff wiggins
wrote:
Hi Jim. |
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Re: Virtual Audio Cable update?
Jim Smith G0OFE
Correct. You need to click on >|< in the spectrum display top right in order to centre the radio on your received frequency, in order to send it to skimmer. I have documented my method here: http://skywavesdx.org/viewtopic.php?f=22&t=7096 ================================
Jim, Bournemouth, Dorset. IO90BR. Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers 8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF On 06/05/2020 12:35, C. van Ravenswaaij
wrote:
Hi Jim, |
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Re: Virtual Audio Cable update?
Jim Smith G0OFE
VB Audio Cable is limited to 96000. I listened to the output from VB Audio cable even when "set" to 192000 and it sounded distorted. Checked the configuration program and it is limited to 96000 max sampling. Used Virtual Audio cable at 192k and now I have updated that this morning, it works fine. I suspect that if Simon was to remove audio
filtering to allow a 192khz sound stream to be sent to a VAC, it
would work straight into RDS Spy. This method works on HDSDR. ================================
Jim, Bournemouth, Dorset. IO90BR. Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers 8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF On 06/05/2020 12:14, Finndx wrote:
Jim, have you seen my old Youtube video about Skimmer output & RDSspy experiments? |
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Re: Virtual Audio Cable update?
geoff wiggins
Hi Jim.
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Use the original link the Eugene sent you and just edit the version number in the link. You will then be able to download the latest version. 73 Geoff. G4XMJ -----Original Message-----
From: Dick Sent: Wednesday, May 6, 2020 9:21 AM To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] Virtual Audio Cable update? On Tue, May 5, 2020 at 10:43 PM, Jim Smith G0OFE wrote: Hi Jim, With your purchase you received an e-mail explaining how to upgrade. If you have lost that e-mail you might need to contact the author. I bought my version in 2012 and currently run version 4.6.2. Cheers, Dick PA2015 |
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Re: Virtual Audio Cable update?
C. van Ravenswaaij
Hi Jim,
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Following your lead I succeeded in piping audio from Console (CWSkimmer option) through VAC to SDR#, then to MPX Output (via VAC) to RDS Spy. It works, but it seems that only the center frequency of Console is forwarded via the CWSkimmer. This means that changing frequency inside the spectrum does nog change the output from CWSkimmer. 73, Cornel Op 5-5-2020 om 22:43 schreef Jim Smith
G0OFE:
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Re: User configuration for a newbie??
Tom Crosbie G6PZZ
Martin, if you can hear a chewing sound, its me eating humble pie!! You were right and I was WRONG! I bow to the more learned etc., etc.
After a bit of digging I found I have a Sentinel 4. No pluses and my sincerest apologies if I have caused you offence.
It was a year ago, almost to day when I placed my order with CCW and there were several SDR’s offered with a number 4 in it somewhere, around that time. So I’ve got myself into a bit of a state over this, present day. Some of the guys here know I suffered a massive stroke some time ago. Its no secret but one of the conditions it has left me with is an sh1t memory. A year is like an eternity to a stroke survivor, so it doesn’t take much to confuse me!
As to taking it personally, I have no intention of falling out with you. You’ve been a big help to me and others too that I see from your postings and its guys like you who share knowledge, skill and expertise that make this a wonderful and fulfilling hobby
I need more cream for the pie…
Tom G6PZZ
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of martin m3ghe
Sent: 05 May 2020 16:49 To: main@SDR-Radio.groups.io Subject: Re: [SDR-Radio] User configuration for a newbie??
Tom, don't take this personally. But try reading what I posted. I said the SDR-4+ wasn't CAT controlled. The SDR-4+ and the Sentinel 4 are different radios.
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Re: Virtual Audio Cable update?
M0ZEH <m0zeh@...>
Be sure to set Windows record and play settings to 192 khz for both vba cables so 4 lots of settings to set.
Thanks Steve m0zeh |
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Re: Virtual Audio Cable update?
Finndx
Jim, have you seen my old Youtube video about Skimmer output & RDSspy experiments?
https://sdr-radio.groups.io/g/main/message/40626 Working but only partially. After reading your message I also tested quickly using SDR# instead of HDSDR and as a result I have similar experiences. Sometimes works, sometimes not. I hope you'll get better success with it. I am using VB Audio Cable and VB Audio HiFi Cable for these experiments. |
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Re: Hermes-Lite 2 Available
ADAM HOGG
Hi Max
Thanks for a great mini review, I'm glad I went ahead and made the purchase. Kind regards Adam - G0AUR |
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Re: Hermes-Lite 2 Available
ADAM HOGG
Thanks for the info Simon,
I was slow with my decision to buy on the last release and missed out but all parts ordered 08:00 this morning. Kind regards Adam - G0AUR |
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Re: Lime Mini - HF
Siegfried Jackstien
the data sheet say you need an external cap for decoupling ... if there would be an internal cap there would be no need for an external one
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so i guess just increasing the external cap would do the job (hey we are all experimenters ... not?!?) we do not look for ZERO loss ... but a bit lower loss and better return loss i think its worth a try dg9bfc sigi Am 06.05.2020 um 10:58 schrieb Brian Morrison: On Tue, 5 May 2020 19:15:02 +0000 |
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Re: Lime Mini - HF
Brian Morrison
On Tue, 5 May 2020 19:15:02 +0000
"Siegfried Jackstien" <siegfried.jackstien@...> wrote: the datasheet of the switch says that the return loss comes mainly fromIt's quite likely that there is an internal series cap, no way around it if this is the case -- Brian Morrison G8SEZ |
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Re: Hermes-Lite 2 Available
Max
Seconded.
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If people look at Hermes Lite 2 and think it looks like a bit of a "build job" I can reassure you that the only very small part of building is just one hole to be drilled in the bottom of the case for a long M3 bolt to gently clamp the PA section to the case for heat disspation, and ideally a little heat-transfer compound. Other than that it is sliding boards in, connect together with the supplied push-on header and screwing on the front/back panel. Not really building, more like assembly. I would be very surprised if it took me more than about an hour to get this assembled and boxed and most of that was reading the Wiki section notes! This is a very well sorted and professional "kit", complete with a set of very nice-looking engraved front/back end plates. Makerfabs even now supply the case as well for very low cost, so you can have fully functional LF/MF/HF SDR transceiver (0-38MHz, 5W out) for less than 250 GBP all-in, and performance for me so far is excellent. Receiver performance far exceeds that of my RSP2Pro on covered frequency band (up to 38MHz). Multiple simultaneous 384kHz hardware receiver "slices" are possible anywhere within the 0-38MHz bandwidth (though not yet implemented in SDRC). I simply cannot recommend this radio more highly. Designer Steve Haynal has done a fantastic job for a "hobby" project (because he makes no money out of it) and deserves full congratulations, and now an additional bonus is that Simon is crafting SDRC to work brilliantly with it. Information/FAQ MakerFabs Hermes Lite 73 Max On Wed, May 6, 2020 at 06:02 AM, Simon Brown wrote:
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Re: Using the ADALM-Pluto as a viable SDR
Siegfried Jackstien
bill ... you got mail i use asvtx-13-c-40.000-i05-t ... and a multiturn trimmer ...to make it tuneable from outside others just use the fixed one (astx-13) ... dg9bfc sigi Am 06.05.2020 um 05:35 schrieb Bill
Walch:
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Re: Use the sdr console program in local network with my sdrplay RSP1
#sdrconsolev3
#sdrplay
#network
Kriss I think you have misunderstood Carlos's enquiry.
He isn't using the SDRC Server. He wants to connect to his RSP1 from his windows PC via TCP using the SDRplay TCP server on his Raspberry Pi and that isn't possible with SDRC. Martin. |
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Re: Virtual Audio Cable update?
Jim Smith G0OFE
Not frequency.... it's the bandwidth of the virtual sound card/cable. One needs the 192khz bandwidth to carry a
Broadcast FM signal wide enough to facilitate RDS decoding. ================================
Jim, Bournemouth, Dorset. IO90BR. Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers 8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF On 06/05/2020 06:37, M0ZEH wrote:
What does a higher frequency give you? 48khz compared with 192 khz. |
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