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News: Welcome to the Australianelectronicgoldprospectingforum founded in July 2010, an add free totally independent forum with over 70 boards and paid for and managed by the Admin.Total forum Topics:8,770Total forum Posts:41,887 Members:683 Total page views:8,708,075 Admin and  forum and domain name owner :marjen at optusnet.com.au. Guests can only see a limited number of boards at present and cannot see any links. Guest cannot post and never will be permitted too!Registration of new members must be approved by admin.Anyone known to have any past or present association with Codan/ML or acting on their behalf as a proxy or intermediary  will not have their registration approved. All  original Photos and posts and  original materials displayed on this site are COPYRIGHTED and remain the property of the poster and the  Austalian electronicgoldprospectingforum.com. All messages on this forum express the personal views of the author and should not be interpreted as necessarily being in accord with those of the forum owner and neither the owner of this forum and its domain name nor SMF or the forum software developers or the forum host shall be held responsible for the content of any message. Admin reserves the right to remove any offensive or objectionable posts. No defamatory material or politics/religion or issues of race will be permitted.

Some software and hardware updates now available for the QED.More  QED firmware updates (inc Auto GB  option) just announced here. New  QED hardware updates/options and pictures will be posted  first here  as they become available.

Another satisfied QED user! QED user report for 9 days detecting! User loves it, found it easy to use,found gold with it and he prefers it to his 5000! Also a report on a QED used at the beach for coin shooting.QED users reporting in with their multi ounce gold finds with the QED!
From  another QED user today:"Been out and about today testing and comparing against other machines etc in ground that has been horrible in the past.Bround balancing Ive found very simple and easy.'m using the Nokia booster but need a little more sound/threshold.Otherwise no complaints from me, very impressed."
and :"My QED with the 8” commander on it, out performed my SDC Got bits that don't register on my scales SDC has since been sold"
"My QED is terrific. Lightweight, very sensitive and screams at me when it hits any target. The Detect shaft and the 11" ultra sensing coil is a top quality fitout. I attached an external speaker which added under 200gms of weight in total and still remains very well balanced so i never feel fatigued after many hours of swinging."

Stinky  Pete :http://www.detech-metaldetectorsaustralia.com.au/  and Goldsearch Dunolly are the  Australian distributors for the QED.
This is the only forum where you can talk directly with the designer/ manufacturer of the QED and  also some very experienced QED users.
Jrbeatty and Reg Wilson  and  Yellowfin  (or Doug here for that matter!)have NO vested  or pecuniary interests(or secret deals or cash for comment or any other undisclosed benefits )in the QED other than using it to find gold which it is doing very successfully! The ONLY people deriving  an income from the QED(other than finding good gold) are the 2 approved retailers and Bugwhiskers! The ONLY investor in the QED is Bugwhiskers!
I have never met Jrbeatty or Reg Wilson at Howards house or ANY other location!

australian electronic gold prospecting forum.com  |  Recent Posts
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 31 
 on: Thursday August 3 2017 14:51:00 AEST PM 
Started by Doug - Last post by jrbeatty
That download doesn't seem to have the latest extended menu with SMR, etc?

 32 
 on: Thursday August 3 2017 14:39:12 AEST PM 
Started by Doug - Last post by Doug
Updated QED users manual
doug smile

 33 
 on: Thursday August 3 2017 11:08:33 AEST AM 
Started by Doug - Last post by Doug
  
I do wonder if any detector and a coil for that matter could shut up an electric fence pulse?

No not completely  but an A1 coil will reduce the effect significantly and enable one to detect closer to the electric fence.
doug smile

 34 
 on: Thursday August 3 2017 10:59:32 AEST AM 
Started by Doug - Last post by GARY
I do wonder if any detector and a coil for that matter could shut up an electric fence pulse?

 35 
 on: Wednesday August 2 2017 23:22:46 AEST PM 
Started by Doug - Last post by Doug
 Here is a nice and easy to understand presentation of data homogenization.
Data homogenisation requirements for extremes
Blair Trewin
Climate Monitoring and Prediction
Australian Bureau of Meteorology

Why is data homogeneity an issue?
• We want to be sure that changes we are detecting reflect changes in the climate, not changes in the way the observations were made
Non-climatic inhomogeneities can arise from numerous causes (e.g. instrument changes, site moves, observing practice changes, urbanisation/changes in site condition)
• Some issues will be more important for some variables than others In this presentation, we will focus on daily maximum and minimum temperature.
  
link-https://www.wcrp-climate.org/images/grand_challenges/climate_extremes/Data_Workshop/February%202015%20-%20Trewin%20-%20data%20homogenisation%20requirements%20for%20extremes.pdf
doug smile




 36 
 on: Wednesday August 2 2017 22:55:51 AEST PM 
Started by Doug - Last post by Doug
  
However, for a layman like myself, the issue is not helped when eminent agency's appear to be fudging figures to meet a pre-determined political objective. It appears that our very own BOM has some serious explaining to do.
  

Its all explained here:
No, the Bureau of Meteorology is not fiddling its weather data

Over the past week or so, the Bureau of Meteorology has stood accused of fudging its temperature data records to emphasise warming, in a series of articles in The Australian. The accusation hinges on the method that the Bureau uses to remove non-climate-related changes in its weather station data, referred to as “data homogenisation”.
If true, this would be very serious because these data sets underpin major climate research projects, including deducing how much Australia is warming. But it’s not true.

High-quality data
Far from being a fudge to make warming look more severe than it is, most of the Bureau’s data manipulation has in fact had the effect of reducing the apparent extreme temperature trends across Australia. Cherrypicking weather stations where data have been corrected in a warming direction doesn’t mean the overall picture is wrong.
Data homogenisation is not aimed at producing a predetermined outcome, but rather is an essential process in improving weather data by spotting where temperature records need to be corrected, in either direction. If the Bureau didn’t do it, then we and our fellow climatologists wouldn’t use its data because it would be misleading. What we need are data from which spurious warming or cooling trends have been removed, so that we can see the actual trends.

  
link-https://theconversation.com/no-the-bureau-of-meteorology-is-not-fiddling-its-weather-data-31009

Long-term temperature record

Australian Climate Observations Reference Network – Surface Air Temperature Methods
Long-term datasets present a range of challenges. They require digitisation of old paper-based records, as well as the identification and quality assurance for inconsistencies created by weather station site moves, changes in the surroundings, technology development and random errors.
The Bureau of Meteorology's climate data experts carefully analyse records to find and address spurious artefacts in the data, thus developing a consistent—or homogeneous—record of daily temperatures over the last 100 years.
  
link-http://www.bom.gov.au/climate/change/acorn-sat/#tabs=Methods

Techniques involved in developing the Australian Climate Observations Reference Network – Surface Air Temperature (ACORN-SAT) dataset
CAWCR Technical Report No. 049
Blair Trewin
March 2012
  
link-http://cawcr.gov.au/technical-reports/CTR_049.pdf


INTERNATIONAL JOURNAL OF CLIMATOLOGY
Int. J. Climatol. 33: 1510–1529 (2013)
Published online 13 June 2012 in Wiley Online Library
(wileyonlinelibrary.com) DOI: 10.1002/joc.3530
A daily homogenized temperature data set for Australia
Blair Trewin*
National Climate Centre, Australian Bureau of Meteorology, Melbourne, VIC, Australia
ABSTRACT: A new homogenized daily maximum and minimum temperature data set, the Australian Climate Observations
Reference Network – Surface Air Temperature data set, has been developed for Australia. This data set contains data from
112 locations across Australia, and extends from 1910 to the present, with 60 locations having data for the full post-1910
period.
These data have been comprehensively analysed for inhomogeneities and data errors ensuring a set of station temperature
data which are suitable for the analysis of climate variability and trends. For the purposes of merging station series and
correcting inhomogeneities, the data set has been developed using a technique, the percentile-matching (PM) algorithm,
which applies differing adjustments to daily data depending on their position in the frequency distribution. This method
is intended to produce data sets that are homogeneous for higher-order statistical properties, such as variance and the
frequency of extremes, as well as for mean values. The PM algorithm is evaluated and found to have clear advantages
over adjustments based on monthly means, particularly in the homogenization of temperature extremes.
  
 link-http://onlinelibrary.wiley.com/store/10.1002/joc.3530/asset/3530_ftp.pdf?v=1&t=j5v084ej&s=827e20541e6f2096b654373cee7853af489a881b
I will respond to your other points when i have time.
BOM is not fudging data and the methods they use for data homogenization  have been examined very carefully and conform to the very best scientific  practices.
doug smile

 37 
 on: Wednesday August 2 2017 21:22:18 AEST PM 
Started by Doug - Last post by Dusty641
Hi Doug, while we agree on a lot of things climate change is one place that we divert. Climate change is real (only a moron would argue otherwise) but it is the root cause that I have an issue with... I happen to fall in the camp that believes solar flares and other activity shapes climate change far more than the burning of fossil fuels... but that is my bent and I don't expect you to agree... naturally.

However, for a layman like myself, the issue is not helped when eminent agency's appear to be fudging figures to meet a pre-determined political objective. It appears that our very own BOM has some serious explaining to do.

  

 38 
 on: Tuesday August 1 2017 20:43:54 AEST PM 
Started by Doug - Last post by Doug
  

Just curious how they had came about this .. "highest on record in 100 years"
Hmm how were the thermometers calibrated way back then .. what reference did they
use ? I know from our lab at work, that we send our thermometers off to a certified lab to get calibrated
every 12 months and we get a certificate of calibration .. dont think this happened way back then
Just saying.

The points you make are why temperature data particularly that going back in time is  homogenized.
  
link-https://www.skepticalscience.com/homogenization_of_temperature_data.html
  
link-http://www.bom.gov.au/climate/change/acorn-sat/#tabs=Methods
doug smile

 39 
 on: Tuesday August 1 2017 20:37:32 AEST PM 
Started by Doug - Last post by Doug
  
  
The reason the test has to be repeated is that the  7000 GB procedure did not use the ferrite and i don't know what other settings were used.
doug smile

What? Forgot to do the ferrite octopus dance? 

yes!!!!
doug smile

 40 
 on: Tuesday August 1 2017 20:04:46 AEST PM 
Started by Doug - Last post by gef12
 excited excited

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