Yes, it's the difference between send (20 Mbps) and receive (200 Mbps) and that asymmetry which introduces an unknown path delay difference which isn't accounted for, and hence the offset I noted. As

On 20220604 22:30:59, David J Taylor via groups.io wrote: I never mentioned that potential to the AF guy. But, then, that was way off in the future when he was only a little way off in the

On 20220604 22:08:59, David J Taylor via groups.io wrote: The delay is not as important as the two way path difference. The delay is automatically canceled out based on the calculated one

In the previous, swap 02 ms for 0.2 ms, and click rate for clock rate! -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter:

Certainly tying the PPS into the router would increase performance. Typically here I see up to 02 ms jitter from the internal servers, and under 2 ms from the pool servers (UK). They all show an

That's just what I mean by well-configured. You can adjust things to suit your own local requirements. My chosen server is always one of my own stratum-1 servers. My UK or NL pool servers are

John P Bain. Begin forwarded message: From: John Bain <johnpbain@...> Date: 4 June 2022 at 18:47:56 BST To: dennis.fitch@... Subject: Re: SDR's For Sale, ETC.V2 Hi Hi.  Hi Dennis, I think I paid

On 20220604 06:54:58, David J Taylor via groups.io wrote: Um, just a quibble here, the three pool entries I also use are never chosen as the reference. Of necessity one of them is

Is your PPS signal reception based on a signal that instantly raises a VERY high priority interrupt? And how does your software account for the interrupt latency? Does it also account for

On 20220604 02:25:26, David J Taylor via groups.io wrote: My configuration here involves a Linux router that does a lot of other work and a largish set of PCs around the house, mostly here

Simon's World Map 1.2.10 available, added support for the Geomagnetic Dst Index. https://g4eli.com/world-map Introduction — G4ELI Software. This is a rewrite of a previous project, this program:

Anybody interested in the hermes lite 2 or the afedri sdr (pictures in an earlier post, I also have an airspy hf+ dual port (not discovery), an mfj 1026 deluxe noise cancelling/signal

Yes, the problem these days is getting that "bit level" input to the PC. For my most recent purchase I made sure to specify a motherboard which had at least the COM port header. I agree with Conrad

Hi, Just show a screenshot of the main satellite tracking window please. Also show me your TLE settings as below. Simon Brown https://g4eli.com https://sdr-radio.com From: main@SDR-Radio.groups.io

If I recall correctly, Simon just wanted to correct a drifting PC clock using his existing hardware. Probably as a reference for recording or maybe decoding with one of the many digital modes in

Can I delete all Keplers and start over again? If so, how so please? Receiving NOAA Wx sats on entered frequencies is a joy. 73 Dave G7GZC

David, thank you! You mainly confirm what I wrote. I use a GPS module with PPS output and a RS232 converter, PPS connected to a serial handshake line. Of course my PC has a real (hardware) RS232

Dirk, I think may Linux users would be disappointed to get low milliseconds from NTP - and Windows makes it much more difficult (although better with Windows 8 and later). The problem with GPS alone

So, Running a test - if it correctly picks up the next value change I'll make 1.3.10 available today. Simon Brown https://g4eli.com https://sdr-radio.com From: main@SDR-Radio.groups.io

So, Seems to work, see attachment. Simon Brown https://g4eli.com https://sdr-radio.com From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Simon Brown via groups.io