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TOPIC: Can't read calinration - ERROR MESSAGE!

Can't read calinration - ERROR MESSAGE! 29 Mar 2021 13:30 #31

  • N8SDR
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By Subnet he means the default of for the Subnet of section of your IPv4 255.255.255.0

connect the radio directly to the PC via a Ethernet cable and set the PC Ipv4 TCP as outlined- then see if the radio connects- after you get it connected then change/modify the IP of the radio to fit your router DHCP or your IP address range and subnet if not a 255.255.255.0 class
before you go any further lets directly connect the PC and radio ( skip the switch of other network devices)
73 Rick
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Can't read calinration - ERROR MESSAGE! 29 Mar 2021 13:36 #32

  • g0cgl
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192.168.YYY.ZZZ

The subnet is the YYY.ZZZ part

What you refer to is the subnet mask which is used by the TCP/IP protocol to determine whether a host is on the local subnet or on a remote network.
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Can't read calinration - ERROR MESSAGE! 29 Mar 2021 19:05 #33

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UPDATE - I now have the radio working again.
I made the following steps:
1. I had already disconnected the Protection within Acronis Tue Image software
2. I disconnected my VPN software
3. I reset the radio using the RST button and after several attempts got the default IP address of 192.168.16.200 as the IP for the SDR
4. I carried out the First Procedure in the Setting SDR2Pro for Dummies (me I guess!) and the SDR started working again when directly connected to the PC with the LAN cable.
5. I tried twice to carry out the Second procedure in the same document to enable both the PC and the radio to be connected by LAN to the router. I could not get that to work
6. I carried out the First procedure again and got the SDR working with direct connection to the PC.
7. I set up the PC for WiFi connection to the router rather than LAN and everything seems to work. ie. the SDR, Emails and Internet all working again now.

I don't know what was wrong before, but I Seem to have got over it by using the Default IP address for the SDR and WiFi for the PC. Fingers crossed it still works tomorrow. I will test it out on Wed in a CW contest and see if the WiFi holds up.
After tomorrow if all OK, I will also reconnect the VPN and the Acronis Protection and see if they cause the problem to reappear.
Thanks for all the help and advice guys
73 Ray G3XLG
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Can't read calinration - ERROR MESSAGE! 05 Apr 2021 20:50 #34

  • fubo
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It probably means your subnet isn't setup correctly on your PC, because a direct connection should always work. The way to verify if your PC connection is good to the hardware is just to PING it (i.e. open up cmd prompt, ping <IP address ofy our radio>. that should always work).

Your PC's ethernet if it's conneced directly must support automatic crossover (i.e. TX->RX) same with SDR2 (i dunno if it supports it). I have only tried with their supplied cable.

Another thing is to make sure your PC ethernet driver will NEVER SLEEP (i.e. power saving mode OFF).
G3XLG wrote:
UPDATE - I now have the radio working again.
I made the following steps:
1. I had already disconnected the Protection within Acronis Tue Image software
2. I disconnected my VPN software
3. I reset the radio using the RST button and after several attempts got the default IP address of 192.168.16.200 as the IP for the SDR
4. I carried out the First Procedure in the Setting SDR2Pro for Dummies (me I guess!) and the SDR started working again when directly connected to the PC with the LAN cable.
5. I tried twice to carry out the Second procedure in the same document to enable both the PC and the radio to be connected by LAN to the router. I could not get that to work
6. I carried out the First procedure again and got the SDR working with direct connection to the PC.
7. I set up the PC for WiFi connection to the router rather than LAN and everything seems to work. ie. the SDR, Emails and Internet all working again now.

I don't know what was wrong before, but I Seem to have got over it by using the Default IP address for the SDR and WiFi for the PC. Fingers crossed it still works tomorrow. I will test it out on Wed in a CW contest and see if the WiFi holds up.
After tomorrow if all OK, I will also reconnect the VPN and the Acronis Protection and see if they cause the problem to reappear.
Thanks for all the help and advice guys
73 Ray G3XLG
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Can't read calinration - ERROR MESSAGE! 07 Apr 2021 10:26 #35

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Hi Fubo
I started again with new LAN cables between the router and the radio and between the router and the P and very carefully reset the IP addresses according to the prescribed proceedure and BINGO, it then worked with no problems
73
Ray G3XLG
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Can't read calinration - ERROR MESSAGE! 18 May 2022 00:30 #36

  • gotcha
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I'm cross posting this from another thread I posted to a little while ago in case someone need to see this.

I just discovered (today) that some third party software can cause this issue with both the sdr2 and sdr3 version of software. Don't know the technical particulars yet but do know when I uninstalled the latest software program I installed to my PC right before this started to happen to me, the problems went away completely when the software was disabled or uninstalled, either way.
This was completely reproducible 8 times in a row. I hate to say which software it was for fear of reprisals. I'll just say that it is one of the most popular remote desktop software out there. When uninstalled or disabled, the radio and expertsdr3 and expertsdr2 both worked just fine without any other intervention.
So you guys may want to investigate conflicts with ip addressing and ports and software code as a possibility of this problem. It was not a cable, router,or any other hardware issue in my case.
I hope this helps somebody.
Victor k4xtt
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Cat6 vs Cat8 25 Jul 2022 11:45 #37

  • W1SPS
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I see that the Ethernet cables are often the cause of issues. Would there be any benefit at all using a Cat8 vs a Cat6 cable? Particularly as the Cat8 had more shielding.
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Cat6 vs Cat8 25 Jul 2022 22:56 #38

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W1SPS wrote:
I see that the Ethernet cables are often the cause of issues. Would there be any benefit at all using a Cat8 vs a Cat6 cable? Particularly as the Cat8 had more shielding.
No. You can use it, of course, but no benefints.

FYI - Cat8 was designed for the purpose completely different from end-user equipment connectivity.
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Can't read calinration - ERROR MESSAGE! 27 Jul 2022 12:39 #39

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It looks like our antispam system deleted a legitimate user, I'm sorry.
If anyone knows who it was, please ask this person to contact us via email.
Роман, Roman
Expert Electronics
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