Aspect change in VLF traces
#18
(03-30-2015, 11:23 PM)Skywise Wrote:
(03-30-2015, 10:32 PM)Duffy Wrote: Using 2 identical antenna's and feed lines, I connected them to 2 monitors, one was a $1000 Dell Latitude, and the other a $40 year 2000 model Toshiba off Ebay.

Duffy, when you say "connected", exactly what do you mean? How are you connecting the antennae to the computer? Any equipment in between? (amps, filters, baluns, etc....)

I hope I'm not prying into any 'secret technology', but the more you can say the easier we (I?) might be able to explain the difference.

Brian

Your not prying Brian, but it is a bit out in the open for a full spec run-down at the moment. However, I can tell you with a high degree of certainty that it's not connection problems, or issues with spectrum settings.

I'm not to bad at bench testing and elimination, but I'm far from understanding the inner workings of laptops, I was hoping you could shed some light on why a 14" Dell with a 6 cell battery can operate for 8 hours, when similar size and year models like Fujitsu or Samsung operate for 3 to 4 hours?. I don't think it's different battery tec because I have several old Toshiba laptop's here (11 to be exact, stamps isn't really my thing), all the same year and model, but with 6 different serial numbers. I've tested them all with a new internal battery, and they all operated for a period of 2 to 2.5 hours, the intriguing thing here is, when I ran them on a 153Wh external battery at 6900mAh output, only one particular S number operated for 7.5 hours before the internal kicked in, (same one's I now use for the quakes) the next best was 3.5 hours.

I ran the test twice over a 2 month period in 2013, I was on a quest for battery longevity at the time, for Solar studies, and didn't want to buy a high end model for a 2 year monitoring project. I get a bit obsessive sometimes, and probably paid more for the used than a new one.

My resent purchase of 2 Dells was based on this, I may have assumed wrongly, lower battery consumption would relate to less noise and heat generation, thus avoiding VLF contamination.

I use the same 3 year old version of spectrum lab on all monitors, old and new, which shouldn't be an issue, there is a power difference though, the Toshiba's run on 16V, and the Dell's 19V. Not sure if all new laptops, net and note books run on 19V as standard, but I'm replying to you on a new Acer Chromebook 13, and a quick check shows this is also 19V.

I might be on the wrong trail here, but do you think voltage has any significance or effect on sound card sensitivity?, on the other hand, all the Toshiba's I tested are also 16V??. So why would one particular serial numbered model have twice the longevity of the others? its not a one off, I have 4, and they all run 7.5 hours!

Wish I could go into more detail with you, but until Duffy to Earth contact is re-established, we might be wearing out our distal phalanges for nothing Confused.

Duffy;




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Messages In This Thread
Aspect change in VLF traces - by Duffy - 03-28-2015, 02:45 PM
RE: Aspect change in VLF traces - by Roger Hunter - 03-28-2015, 09:32 PM
RE: Aspect change in VLF traces - by Duffy - 03-28-2015, 11:20 PM
RE: Aspect change in VLF traces - by Roger Hunter - 03-29-2015, 03:31 AM
RE: Aspect change in VLF traces - by Skywise - 03-29-2015, 05:10 AM
RE: Aspect change in VLF traces - by Duffy - 03-29-2015, 11:02 AM
RE: Aspect change in VLF traces - by Roger Hunter - 03-29-2015, 01:21 PM
RE: Aspect change in VLF traces - by Duffy - 03-29-2015, 04:56 PM
RE: Aspect change in VLF traces - by Skywise - 03-30-2015, 02:01 AM
M7.5 New Guinea - by Island Chris - 03-30-2015, 10:56 AM
RE: Aspect change in VLF traces - by Roger Hunter - 03-30-2015, 06:36 PM
RE: Aspect change in VLF traces - by Skywise - 03-30-2015, 09:39 PM
RE: Aspect change in VLF traces - by Duffy - 03-30-2015, 10:32 PM
RE: Aspect change in VLF traces - by Skywise - 03-30-2015, 11:23 PM
RE: Aspect change in VLF traces - by Island Chris - 03-31-2015, 10:51 AM
RE: Aspect change in VLF traces - by Duffy - 03-31-2015, 03:39 PM
RE: Aspect change in VLF traces - by Duffy - 03-31-2015, 09:36 PM
RE: Aspect change in VLF traces - by Roger Hunter - 03-31-2015, 11:19 PM
RE: Aspect change in VLF traces - by Skywise - 03-31-2015, 11:29 PM
RE: Aspect change in VLF traces - by Skywise - 03-31-2015, 11:40 PM
RE: Aspect change in VLF traces - by Duffy - 03-28-2015, 10:06 PM

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