Thursday, May 21, 2015

Windows10

Continued        VM10   and VB6
 It works,  all looks okay after some struggle
VB6 works good in W10 technical preview I hope it will stay like that in the official version!
WINDOWS 10 is seen as a repaired version of Windows 8
 I wanted to see if the old and never surpassed VisualBasic6 SP6 could work as it does in W7
I never saw use for W8 that one I skip'd
For professional applications W7-64 is the preference  professional PC suppliers still ship the systems with W7
But maybe W10 is not a stepback like W8 and can it be a useful next W- OS
this is my story in a nutshell
1. To run W10 technical preview I wanted it as VM in already installed WindowsVirtual PC
But it would not work in W-Virtual PC
2. Virtualbox Oracle older version was installed  V4.3.8  I could not get VM W10 to work in that either.
3. V-box V 4.3.26 would not install at all here

4. VirtualBox V5.04 beta  the latest did install
http://dlc-cdn.sun.com/virtualbox/5.0.0_BETA4/
 there is a new stable version Vbox V4.3.28  i did not try yet
I choose  new VM    Win10    base Win7-64b   and set DVD to ISO W10 32 bit
Used recommended settings Memory  5GB   HD 25GB  etc
My W510 Lenovo has CPU i7 1,73GH Q820   12G ram 500G SSD  screen 1920x1080
Trying  to run  W10 WM  this error came up:
vt-x is disabled in the bios for all cpu modes
It seemed that in my Lenovo W510  "vt-x" was disabled in the bios  
your PC has to provide virtual technics in its hardware for W10 / VM 
coldboot > wait for Lenovo logo > F1 > security > security chip = enable > Intel(R)TXT = disabled
F10 save  after that W10 VM did start and W10 could be installed.
Next was install v5.04 extensions to support USB 1 2 3 twice the 1rst time it did not work.
V-BOX claims the USB devices with filter and then the Host W7 does no longer have access to it.
sharing maps to the external USB drives i found also that it does not share between host and VM
either one claims the resource  not like in Windows Virtual PC  a small minus point

What I wanted to see W10  is if VisualBasic6 does works again as a proof to me that W10 is okay
in W8 MS had disabled the IDE  !   MS wants to get rid of their best and popular language product at any costs!
But in W10  VB6 installed   the normal way as administrator
it  run's and the unsurpassed  IDE of VB6 works like it does in W7  !
Some compatibility warnings  you can ignore
VB6 has to be run with admin rights.  
success finally !   and I could not find any issues in running the IDE
the Database environment normal
some issues pending
solved
The VM-W10 screen resolution is restricted to 1600x1200  where its host W510 has maximum FullHD 1920x1080

There a link fix this and set W10 at full screen but the solution i found
in https://forums.virtualbox.org/viewtopic.php?f=2&t=63969
Nice but some key information was not given so I could not yet fix it
That will be the common problem of nerds to provide complete information for the outside wold ?
I would expect to set the screen resolution in the well designed Oracle Virtualboxmanager
USB support is an extra Guest addition and  not standard included.
Bit odd  that important user setting,  the screen resolution has to be managed through the backdoor VBoxManage.exe  commandline


first time to see if a value was set
C:\Program Files\Oracle\VirtualBox>VboxManage.exe getextradata "Windows 10" Customvideomode1
No value set!

then set the value that fits to you screen
C:\Program Files\Oracle\VirtualBox>VboxManage.exe setextradata "Windows 10" Customvideomode1 1920x1280x32

C:\Program Files\Oracle\VirtualBox>VboxManage.exe getextradata "Windows 10" Customvideomode1
1920x1280x32

2 simple commands but exactly follow the syntax !
And your "VM name"   "Windows 10" spelled exact case sensitive 

then in VM Windows 10   screen resolution 1920 x 1080 is added and can be selected

so the screen resolution issue can be fixed

next issue is how to share (USB)drives  and or Maps  simultaneous between the VM and Host
that is easy in MS Virtual PC  the resources of the Host are shown in the VM explorer tree.

Some sharing functions are offered
looks complex for basic functionality
I tried the command-line again a long type that Linux people like so much..
C:\program Files\Oracle\Virtualbox\Vboxmanage.exe sharedfolde add "Windows 10"--name "W10share" --hostpath "C:\G"
But I could not access that share in the host
Now I use Teamviewer to transfer  files between VM and host  that's easy
teamviewer showed that share! but does not need it to function.
 other issue  MOXA N-PORT which we use to provide more serial ports
 The W8 WHQL driver can find only the 1rst Port of 4 of an N-port 5410
not fixed yet  guess Moxa is working on W10 drivers


it was easy to set up a VM for UBUNTU in V-BOX  no issues  with vt-x etc


An other success I had with   Rosetta Stone language course French  DVD version
for the xyl  I had that installed on my spare X60 Lenovo + docking station DVD
It could not be used on the no CD  MacbookAir  ?? that what was said
But After contacting the Rosetta Stone help chat  i got an link to install it on the Macbook
no problem  at all good service.
Of course you need the product code to activate.

OPENING 6m PY ZP
I was too busy  and  missed  the 6m opening last night to PY and ZP
.. audio alert was off
I need a whatsapp message alert maybe that can help me not missing the openings
I did not expect 6m to open after the almost complete radio blackout of the last week after 15 may
But WSPR 10m VK2KRR  was back again in the morning grayline so some rcovering

PROPAGATION Mechanism 50MHz
If my radio 40km west neighbor PF7M  is not giving 599+ reports  and "only" 559
i think it was wasting time to look  ;-)
Although it is not 100% impossible that the spotty skip is visiting my small footprint for a change?
i will not know now..
In all my noise listening years on the tragic band  I have learned that propagation  on 50MHz can be simplified.
When not in a real solar cycle peak we  have no DX propagation outside May June Juli
The wildest DX is reported in the first months of the year in South Europe.
 But below a virtual sharp line somewhere over North Italy. Above that line is no go for 50MHz
This is the best TEP time. But unfortunate we are to far North  and we have no ES yet to have a link to it.
Later this TEP wil be getting weaker and the southern hemisphere loses there ES going towards winter So the goodies will be out of reach for us by the time we have the ES link here.

But then when "we" have ES  actual it is more like them  have ES  I EA HA OM OK UA S-DL
sometimes the band can open a link to f.i. Indian ocean
That was real good for us here begin May  we had that 1 week 4 days 3B9FR was reported
I missed all  except May 15  the last opening but that was my bad  timing with dinner.
In this first May days ES propagation seems to be better in parts of South-Scandinavia.
SM6 OZ SM4 LA reported S.A. contacts we  could not hear ( we = also the OM arround that seem hear "everything" that goes on always)
But the normal procedure is first ON and PA close to ON land report DX
This can shift to my region JO33HG as well  but  it tends to prefer to be west of me
Being at the tale of an opening feels like behind a wall you hear the signals  you want but weaker than every one else. And for the dx you are nr 100 PA/DL/ON not real exciting for them anymore
can't blame  a PA is a PA  for DX  north or south the same but not for me...
Then it skips right to south Scandinavia and never lands here.
Of course this is not a strict rule there are exceptions we can hear sometimes some DX that can't be heard in the south but that's only for the short exception period it never happened that a DX was only workable in the northern part and not in south?
This year this happened but the years before I noticed that too.
We are to close suddenly...  and in the dead zone.
A good period does not last that long 4 days was extreme.
Than  inevitable it ends with a magnetic storm radio blackouts
It can recover in a week or so but then mean time  propagation changes more to west S.A.
That is what we see now  gone is 3B8FR   and the PY's  come   we are hoping for some deeper south
Patagonia CE VP8  etc   but the ES season for them is over...

Image result for ham radio pictures
we can not force working DX...
So the DX range is restricted
In a real solar maximum other DX rules are valid  then with real F2 propagation  that we do not see now.
Imho this is valid for my observations

++++++++++++++++++++++++++++++++++++++++++++++
LENOVO X60 docking bay Audio loopback
Those Lenovo X60 + docking station with DVD com1    and  more USB look perfect for radio apps
they can be purchased for 100€ including dock and installed registered W7
 But they have a flaw using the docking station some sort of software?  shortcirquit exists  between the audio in  and out port
That is the  line in  is allways! monitored to  audio out / or speaker  no matter if this checked or unchecked in the (difficult) W7 audio properties settings.
unchecking  monitor line in  has a too little effect it damps a little bit only
When there is no plug in the lineout  that switches off the internal LS  still you will hear a start of audio loop-back when having volume up and you hand above the internal microphone ..
Bad flaw  makes it hard to use the  digital radio modes with this X60 docking bay

So you get the old Mexican dog  effect back in your system
I had to use an extra relay contact to switch of the line in during TX WSPR for that

And this docking bay ( both I have have the same flaw)   suddenly go wild on the speakers
the line in signal mostly noise from the radio in WSPR mode
Goes unwanted very loud over the LS to be heard everywhere in the house
preferable this happens in the middle of the night when else?
just out of the blue!
I can silence the speakers with the kill button or bring the volume to 0 but then
My WSPR in TX has no longer the audio driven signal    so that is silenced too
The only way i found is to un- and dock again.



Tuesday, May 19, 2015

WSPI-leaks" and WSPR at 4M is like Don Quixote

I found the memory leak deja vue I had that one's before.
 WSPR  save all was checked for a test forgot to uncheck it

C:\Users\user\AppData\Local\VirtualStore\Program Files\WSPR\save
this location is hidden by Windows no easy to find
Microsoft did a good job to hide  data as difficult as possible

2588 files 6.58GB   there they are  each wav is 2.6MB every decode is saved so that will stuff your drive in the end. Only  650MB was left now

the log file containing all decodes can also be found there
This file is not under c:\program files\WSPR\
C:\Users\user\AppData\Local\VirtualStore\Program Files\WSPR\ALL_WSPR.TXT
It has decoded records and logging of TX period  since 2009
still it is only 42MB no problem at all  those TXT files are very efficient in storing data
they take a fraction of space compared to  MDB or XLS files


It is strange that instantly after installing Googledrive 3GB was gone
And that I did not see this in the drive mapper

so now the HD is healthy again with 7.47GB of  40GB free



Propagation

The weather changed from spring to rain showers 12C   we are back in Autumn.
6m band has been totally quiet since 2 days

Some HAMS are working in high power beacons for 70MHz
but why not use WSPR RX/TX propagation reporter ??
that is so strange
As if  the VHF community only want the classic chirpy drifting no band plan beacon type

In WSPR a fraction of power can do more and does  automatic reporting reception
what better system can you have to investigate ES/tropo propagation ?

Still beats me why the  VHF  dx ers that hang around every day at ON4KST
do not use their super rigs in WSPR propagation reporter mode when not in the shack?

4M has only a hand full WSPR stations in Europe but I can regularly decode the few who are there.

 The 2 best distances that are decoded daily. 
2015-05-20 12:12  PA0O  50.294465  -14  0  JO33hg  1  OZ7IT  JO65df  428  57 
2015-05-20 10:22  DK8NE  50.294466  -9  -3  JN59fw  10  PA0O  JO33hg  455  326 
  Sometime ago G3SHK  DX over 624km was decoded often.  That was with some more ERP, 10W   2 ele and good antenna's at the DX side. Indicating that better DX must be possible
But Richard has left 4m WSPR    Not everyone wants to play Don Quexot fighting windmills
There are no more 4M WSPR stations at interesting distances.
Instead of wasting time building a classical beacon just use what you already have I would think?
Possible a new generation of HAMS is needed to accept WSPR.






W10  & VB6 in VM Oracle continued
VirtualBox V5.04 beta   WIN10 is installed as VM
base Win7-64b   and  ISO W10 32 bit
after a bios setting was changed to enable Vt-x  I could install W10  as VM
W510  coldboot > wait for Lenovo logo > F1 > security > security chip = enable > Intel(R)TXT = disabled
F10 save

Need to install v5.04 extensions to support USB 1 2 3
V-BOX  must connect the USB devices with "filter"  then they are disconnected from Host W7
In Windows Virtual PC in a VM the resources of the Host are still available.
I wanted to test if VisualBasic6 can run in W10 In W8 the VB6 IDE no longer worked.
I could install run and debug with IDE of VisualBasic6
And that seems to work like in W7  some warnings about compatibility
success finally

Monday, May 18, 2015

50MHz WSPR last week

Since 2 days 6m is dead as a dodo complete not even SM LA can work a thing
afraid it is the end of the TEP/ES to Indian Ocean area

Last night heard 50102 PY2XB  working OH1 and ES!
again in the dead zone here
ZP5CW was worked in SM6 DL and G
again not a whisper of  the 2  ZP5's

a QSL of long time ago in better times he just "popped  up"  in those days something could pop up here!
but that seems to be history




VK2ZMT  must be an decode overflow from 28MHz  it looks nice...

TimestampCallMHzSNRDriftGridPwrReporterRGridkmaz
 2015-05-17 22:18  VK2ZMT  50.294542  -23  0  QF57ua  5  PA0O  JO33hg  16452  320 
 2015-05-16 09:02  PA0O  50.294477  -26  0  JO33hg  1  4X1RF  KM72ls  3201  124 
 2015-05-15 07:36  LA5TFA  50.294498  -19  0  JP99kq  5  PA0O  JO33hg  1929  205 
 2015-05-16 11:36  CT2IWW  50.294406  -18  -1  IN51wf  2  PA0O  JO33hg  1734  34 
 2015-05-16 11:32  PA0O  50.294528  -5  1  JO33hg  1  CT2IWW  IN51wf  1734  225 
 2015-05-16 12:08  PA0O  50.294526  -22  0  JO33hg  1  CT2IWW  IN51wf  1734  225 
 2015-05-15 12:30  OH7AI  50.294484  -1  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-15 11:50  OH7AI  50.294485  0  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-15 12:42  OH7AI  50.294484  -9  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-14 21:50  PA0O  50.294449  +11  0  JO33hg  10  OH7AI  KP33on  1643  38 
 2015-05-15 13:34  OH7AI  50.294484  0  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-15 12:02  OH7AI  50.294485  -3  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-15 11:48  PA0O  50.294452  -17  0  JO33hg  1  OH7AI  KP33on  1643  38 
 2015-05-15 11:12  PA0O  50.294452  -11  -1  JO33hg  1  OH7AI  KP33on  1643  38 
 2015-05-14 10:22  PA0O  50.294447  0  0  JO33hg  1  OH7AI  KP33on  1643  38 
 2015-05-14 10:14  OH7AI  50.294488  -8  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-15 13:06  OH7AI  50.294484  +1  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-15 10:48  PA0O  50.294451  -9  -1  JO33hg  1  OH7AI  KP33on  1643  38 
 2015-05-14 10:10  PA0O  50.294448  +13  0  JO33hg  1  OH7AI  KP33on  1643  38 
 2015-05-15 10:58  OH7AI  50.294483  +5  -1  KP33on  5  PA0O  JO33hg  1643  236 
 2015-05-14 08:00  PA0O  50.294476  -18  -1  JO33hg  1  R3LW  KO54mq  1596  75 
 2015-05-14 07:52  PA0O  50.294476  -8  0  JO33hg  1  R3LW  KO54mq  1596  75 
 2015-05-14 07:56  PA0O  50.294477  -23  0  JO33hg  1  R3LW  KO54mq  1596  75 
 2015-05-15 13:16  OH1KK  50.294546  -20  0  KP13un  5  PA0O  JO33hg  1507  229 
 2015-05-15 13:00  PA0O  50.294483  -7  0  JO33hg  1  OH1KK  KP13un  1507  34 
 2015-05-15 10:48  PA0O  50.294483  +7  0  JO33hg  1  OH1KK  KP13un  1507  34 
 2015-05-14 21:56  PA0O  50.294481  -4  0  JO33hg  10  OH1KK  KP13un  1507  34 
 2015-05-15 11:48  PA0O  50.294482  -1  0  JO33hg  1  OH1KK  KP13un  1507  34 
 2015-05-15 10:16  OH1KK  50.294546  -3  0  KP13un  5  PA0O  JO33hg  1507  229 
 2015-05-15 11:12  PA0O  50.294483  +9  0  JO33hg  1  OH1KK  KP13un  1507  34 
 2015-05-15 12:18  OH1KK  50.294547  -12  1  KP13un  5  PA0O  JO33hg  1507  229 
 2015-05-16 17:28  PA0O  50.294483  -24  -1  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-15 10:48  PA0O  50.294484  +10  0  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-15 13:00  PA0O  50.294485  -18  0  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-15 11:12  PA0O  50.294484  +7  0  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-14 10:22  PA0O  50.294480  -12  0  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-14 10:28  PA0O  50.294479  -2  0  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-15 13:36  PA0O  50.294485  -20  -1  JO33hg  1  OH3LMN  KP11wm  1374  41 
 2015-05-15 13:52  IK1WVQ  50.294535  -19  1  JN44cb  2  PA0O  JO33hg  1030  354

Friday, May 15, 2015

Google drive eats your harddisk!

I had about  3GB free of 40G HD on this lowpower notebook
I am using Dropbox  it used about 5GB HD space.
It was getting a problem the HD space sunk below minimum level..
But I red this .
https://process.st/2014/07/why-i-moved-from-dropbox-to-google-drive/

I thought to give it a try and gain HD space
It is a cloud storage service so I expect what the name implies  to store file in the WWW instead on my tiny HD...
WRONG thought!  it cost you more HD space than without!
Googledrive installed and instantly I lost my just freed  2.5 GB !
I can not find the G.D. storage place in my PC that takes those GBytes!

Also Dropbox takes HD space but at least it shows decent where it is:  ...user/Dropbox .

Be aware!  special if your HD is "only" 40GB
Stick to dropbox is my advice.
I had cleaned my system HD as good as possible to free about 3.5GB
I got warnings low memory already
The HD is only 40GB in this Notebook

I did uninstall  Googledrive right away when aware about the mistake but the 3 GBytes where not given back!   I am still searching.

Not a word of information about how much Memory Googledrive would take out of your HD !
That is very strange for a program that is dealing with Memory issues
I think Googledrive  instantly makes a virtual drive  and takes just a part out of your HD space without notice
of course no directions how to get it back it should be automatically released after un-installing?

Not dramatic if you have plenty of HD space but it is a behaviour more to expect from malware

 I had 3.5GB free  and a little later without notice from Googledrive  gone!




it was adviced before uninstall  to disconnect Googledrive  that would free the hijacked HD space again
 But my HD had only 500Mb left  already  critical
Started a rescue plan to move a big part of dropbox to an external HD
Camera uploads 5GB to have some working space to be able to continue finding a way to get back the
stolen disk-space
I
 The Googledrive program seems to be in experimental beta state...
Revo uninstaller could not find Googledrive presence after disconnect the drive and uninstall
Rebooting the PC  all in all it can take you 1 evening  you never know how long it takes those software operations. Every time I am told to make a backup.
But making a backup needs how much space ? what is backed up ?     it is not told to you  it is presented as a simple quick job.. But it takes many hours and a big external HD.
Backup to a DVD hahaha  what a joke the chance that that works is below zero.
CD DVD  are ready for recycling.

So where did my 3 GB go  in the drains of GoogleMaddriver i guess
nowhere to find  Spacemonger does not show any suspect data

Virtualbox Continued
now trying Virtualbox 5 beta  since that version  did install without hangup.

I tried different settings to make a VM for W10  but al ending in black error screen  saying
this machine needs reboot press power button...
First  the Win10 logo is shown for a minute or so and then the install ends in the error screen.

But i did the same thing for making an Ubuntu VM
using the 32b version ubuntu-14.04.2-desktop-i386.iso
i thought the 64b would not install in VM?  but not sure
This does install  Ubuntu VM !  so partly a success  I wanted W10 but
that seems not possible yet..
The install asks at some stage to format your system drive it does mean the V-Drive of course...
but it is a scary message...  I checked first with google to continue..



Yes it is simple installing a VM....  if it works
could not make a VM in WindowsV-PC that ended in cryptic errors
Finally some positive result after all the errors / hangups

Thursday, May 14, 2015

3B9FR 50.105 MH10 got'm



The activation  of  Rodrigues Island is the hot item for the  6  community.
After months of plane noise finally real DX .
A good signal and long opening after 3 previous ones passed empty.
Thanks to great activity of Robert and  antenna donated by UKSMG
 QSO time 15:39   a new one i  ! #212  and  MH  main-square  number 90
2 year and 1day  after 3B8DB

Heard long time over 1 hour in and out again heard at almost 17:00
 big pile with  DL OK OM YU etc etc many callers strong heard in the QSX
 50.105 3B9FR  MH10qh     QSX up 2 - 5 kc

When arriving home a quick look at the cluster showed that 3B9FR already had an opening into my area.. was I too late again 3rd day in a row (....)?
Pff  this time the signal came back in to about 569 good signal with big DL OK YU etc pile.

recording
http://www.qsl.net/pa0oos/recall2015/3b9fr_6.mp3

The month May seems to be the best for this area
The end of the TEP season combined with our starting ES.
looking in the list:
72 25-Mar-90 10:03 FR5 FR5EL REUNION isl 1 1
120 15-May-93 16:21 5R8 5R8DG MADAGASKAR 1
165 12-May-01 17:12 3B 3B6RF Agalega  HB9AGH 1
211 15-May-13 17:02 3B8 3B8DB Mauritius
       11-May-15 16:29 5R8UI   Madagaskar LH46DO  
212 14-May-15 15:39 3B9 3B9RF Rodrigues isl. MH10QH



there was more on the band like FR4NT worked 20km NW of me but not a beep
and later CE3SX was worked in ON  PA-close to ON
it really makes a big difference those 250km southwest!
G  EI-north  SM6 LA OZ  everywhere ..
CE is very rare to work at 50MHz  only 2 openings  in our area that i know of
20 August 2001  almost 14 years ago  19:19 CE3RR was worked
in 2013  CE  was worked in JO33 square too
The next possibility will be 2025 then  since we missed this one on the 14-May-2015
Why 6m signals always ( or never) arrive later and weaker here in my QTH?
Maybe the grass here absorbs more RF ..
One thing is changed since my early days in the 80-ties
More trees in a recreation area exists now but  more south of me and the nearest city is south SW.
I have tried several antenna's  9 ele 7 ele  2 el  now a 4 ele shared with HF   was not much difference in  signals on the terrestrial beacons  OZ7IGY LX0SIX 440km always hearable weak in flat conditions .
The only antenna I think that could make a bit a difference  is a stacked 2 x4 or 5 ele  having a bigger aperture then a single that i could try.
  
May is the month for this area

Tuesday, May 12, 2015

VB6 replacement search , TQSL small problem..

Perfectly describes the let down of VB6 users by Microsoft.

http://lightquick.co.uk/still-looking-for-a-replacement-for-vb6.html?Itemid=252

i have installed MS Visual studio 2015   i had to let my PC running the whole evening to install this dragon piece ...

bulky slow cryptic not suited
Windows 10 still not been able to run in VM






seems to be very hard..
TQSL v2.0.3
I noticed  a possible problem in TQSL   v2.0.3

when editing an existing ADIF
the output is skipping fields

output of N1MM ADIF   1 record

 EA8AA/QRP 20150412 172233 36 20M PA0O 14.05356 DX 14.05356 CW 599 599 PA0O 33 8373 1 1 AF 1 1 True USER-PC 1


same record ADIF after edit   inTQSL

EA8AA/QRP
   20M
   CW
   20150412
   172233
   14.05356
   14.05356

 I noticed this because I could not import the edited ADIF into HAMlog due to too many missing fields

did send my findings to LOTW  / tqsl   
got real quick reply from Katherine Lotw specialist

LOTW does only need  callsign  date time band mode and optional frequency
 therefore TQSL only exports these fields needed for LOTW

50MHz  3 days 3B9RF reported into Europe including SM6 LA EI north but for one or another reason i can not be present at the right time ....
frustrating to learn I am not a DX-r anymore .
A DX -r  just know when to be QRV  i know  it is dinnertime .. today I had! to have dinner somewhere outside..  I left with white noise  and returned  to find white noise
But in between 3B9RF was worked again PA LA  etc..
aaarggg I just can't be there when he is reported in EU

Monday, May 11, 2015

5R8UI 6m first DX this year worked




recording with QSO PE5T

helaas 3B9FR niet gehoord  misschien weer te laat dat was een nieuwe geweest.
maar allang verbaasd om uberhaubt eens DX te horen op de ruisband...
tja 6m primetime = dinnertime   dat is een vaste regel..
5R8UI was langere tijd te werken simplex wel veel qsb

  

Nu de 70MHz preamp ESD protected   2x bliksem schade in maart na jaren 0-problemen.
hopelijk geen defecte preamp meer
info  http://www.ok2kkw.com/00003016/lna/lna_ochrana_en.htm
1N34 Ge diode  reverse -1.5V
ca 2pF @-1V      hier -1.5V U-gate

Beter nog zou een dual pindiode
BAR64-04W  of HSMP 3822 TRIG zijn maar die heb ik nu niet.
Of de NXP BAV99 dual SOT23   10 voor 1 Euro  Cp <= 1.5pF
Ik merk geen nadelig effect van de 1N34 of zelfs de BAT85 10pf  op 70 en 50 MHz
En een enkele diode gaat geleiden door te veel signaal en vormt dan een  gesloten contact.
Een harde kortsluiting is het niet maar de ingang wordt ook verstemd waardoor het signaal wordt begrensd
De ervaring van OK2KKW met deze beveiliging is goed.

4m en 6m  (U310  N6CA )



De BLF177 ook defect  nu een SD2931 ongeveer zelfde output.




  

Friday, May 1, 2015

Windows 10 running in a virtual PC and projects .. a lot


I installed an older version of VM that one did not resist and installed normally woow!

But after following the instructions to set up a new VM for Windows10
pressing start VM  did abort with the message core engine not found!
I should reload some core engine ... cryptic  nerd crap since the core engine was not mentioned at install as a separate  part of VM
So how can I reload a kernel of VM ???

It is unbelievable this software boys
it is very hard to find logical working software without fatal errors..


The easiest way to explore Windows 10 is installing it in a virtual PC
That is what I read on the internet i agree with that.
Already longer time using Windows Virtual PC  XP  for Simatic S7 PLC software
That works fine.
Simatic software is not what you want to install in your system since it is
short said:  a real pain in the a..  type of install
If "lucky" and Siematic is installed it takes over your PC  with crazy demands like:
Forbidding  to install service packs or anything the Simatic Haub kwartier Befehls..

I also have W2000 in a virtual PC but never used it since W7 is good.

But my attempts to set up a virtual machine  or PC  for Windows 10 id not succeed

Windows virtual PC  install of a W10 iso  32b or 64bit  ended in error :
 it shows the W10 startup logo then after some waiting
the error message end the attempt


Then I tried Oracles virtual machine or virtual box what ever they call it..

But with every attempt the setup is aborted  (as administrator)


The links to try to resolve this problem are broken!

It still is a big challenge  to run the t-preview of W10...

I never tried W8   i did not see any advantage to install a new OS that has less functionality
against W7
Reading the articles about W8 confirms my impression about that.
 W10 is a repaired version of W8

Now I am writing my diary..what more things i came across:

Trying to refurbish an old guitar.
With new snares.
When watching TV a sudden very loud bang from the corner where the guitar stud.. a final chord.

Now at this point it would be nice to easy insert pictures using Googledrive?
Google+ ?? That took over the former Picasa webalbum that I used before.
Or how they are all called I get confused by programs that have almost similar names and functionality
Picasa did not made it easy using pictures with your blog or mail.
First you had to "export" them and choosing a format/size.
Google drive seems still in development might be good in future it is strange that this Google blog can not use google drive?
Dropbox does work if you manage to find your saved picture back. let's  see
i started my attempts  at 11:10..
importing from Google drive is not possible as expected.
importing from dropbox is possible but the pictures uploaded never arrived
so again HTC share to dropbox..
yes it is 11:33 i have the pictures  must be the aging...

Guitar cleaned and with new steel snares   sounding great again! 

But after 1 week it ended in a sudden bang
I red about using steel snares on an acoustic guitar some say they use steel snares without problem
but others report  damage like this.
It seems that the steel G string needs more tension to tune.
All  together have 20kg more Nm to the nylon.
Now i learned my Guitar is made of red Cedar because there was the typical delicious sweet smell  of red cedar this wood is strong and light but its fibers did tear apart  too easy.
I once made a ruder blade of red cedar wood,  fantastic wood I did no found the fibers come of that easy then
So no steel for this guitar..




An other partly success   my car project
the repairing of the Opel Vectra B caravan 16V16 .
The parking brakes are replaced.

the reluctor rings only 2€ each!  but I have seen them for 45€ also.
They fit perfect after heating just a bit hammering to position
But to get this wheel axes in out and in is an other story.

 The parking brakes replacing them  needs 4 mecanic's  3 of them trying to control the springs of this very primitive system while the  4 places the brake shoes
They cost only 10€ 4 pieces..


The ABS error is gone after placing a new "reluctor ring" .
But I can not yet get the last air out hydraulic system.
Repairing older cars not being an oldtimer is economic not attractive since prizes of  2nd hand cars including an approval paper is very low  for 1000€ it is possible to get a good driving approved car.
The government changed the rules for oldtimer tax back to a normal car  = extreme level
So another thing that makes living a bit more pleasant is taken away.
For no other reason then the economic.
Owning a car without driving it is punished with 100-200€ / month.
 Cars and life could be a lot cheaper but our alone our tax administration  is bigger then the one of f.i. Canada and needs endless tax.
And still the fuel prize is is higher then in neighboring Germany for what reason we are both in the
EU  the fuel is shipped in from Rotterdam
Euro95 fuel     DL i= 1.42€ / liter   NL 1.58€/l  today 3-5-2015  as long as I know it always was cheaper in DL
A simple economic calculation our € is 11€ % cheaper the the German €


An other project that was on the shelf for some months.
Finished my Arduino SWR/Power meter project almost...

Building it in a decent case and making it work took more time then thought.
It is quite difference assembling a nice complete kit  like the component tester
Even assembling the K3 was easier!
But then that's the electronic hobby to find out and puzzle how to get the best result.

first with D9 connector this I did not like

display backlight is automatic activated upon signal

Did not utilize a standard shield but soldered the UNO direct on custom experimental board. 
saving space for an 9V battery option  i have to take it apart again to cut of the board..
 I did use the colored connection wires and header pins to make it easier assembling disassembling.
These came also from mini in the box China very cheap but the connectors are low quality.
Preferred  the old 5-pole-DIN type connectors  over the D9  data types.
The mini din would be good too possible. 
The power is applied over the mini din USB the HTC type 



using 5pole DIN now with the detector part direct on it. It can be taken out together with the connector that makes it easier.



It works but I have not seen  yet an SWR value other then 1:0 ..
Both input channels seems okay A0 A1

And found that the directional voltage out is a bit too high with the used toroid transformers.
Possible the AL is to high for this.
8W 145MHz  gives 6V already   and the Ge detector diodes have restricted reverse voltage 30V abt.
So need to replace this trafo's
Even at 475kHz the voltage was way to high.
But... hmm the Voltage should only depend on the transform ratio not the  permeability.
I have 2x 100ohm chip R 0.5W parallel to terminate the current transformer.
So why to high Voltage have to reduce the winding ratio

Then still have not been able to fix the 4M PA
I replaced the damaged BLF177  easy with the SD2931-10 type a similar  50V 150W type MosFET
Could adjust the bias again at 0.5-1A  though i had to reduce the gate control voltage quite a lot against the BLF177 Phillips type

The same output result max 100 120 was reached
But then...
I switched the TX to off  without output  and bang!  somewhere  no fuse blown
No more bias no more output...  the FET was blown without over current.
That could be over voltage but no power applied at the moment of switching.
And this T/R switching does happen many time during normal operation.
No oscillation issues  since i modified the gate drive circuit with a  balun short piece of thin coax through a bin-ferrite core VHF type AL
The BLF177 since that mod was working unconditional stable
Though the efficiency was a bit low 50%
Dutch RF design reaches over 60% when asking them about.
Possibly not using  ATC capacitors in the filter part reduce the performance.
But now I have 1 SD2931 left but dilemma i do not dare to test it.
Power supply voltage 13.4V 55V (unloaded)  is normal no fault
By passing the PA now having max 10W

Must be Murphy law that strikes again.  After working without problems 1 year and more now it is kicked out just at the start of May where the ES season supposed to start..
I think the NXP Philips BLF177 is more  stable  then the SD2931
Since this BLF177 is working in the same condition for 2 years and also was exposed to oscillations mismatch during building the PA.
I could run key down long time with 120W without overheating.
But I never could bring the efficiency from 50% to a more acceptable figure like 60%

Wednesday, April 29, 2015

Dinsdag middag 28-4 15:50 bliksem deelt een tik uit.

4m transverter eruit
PA en preamp naar de eeuwige ruisvelden door onweer ontlading in de omgeving.
Verder geen andere aparatuur met schade kunnen ontdekken.
de K3 was ook op 6m WSPR
Niets gemerkt pas vandaag zag ik dat de 4m transverter wel erg ruisvrij was en geen bias in de PA.


de laatste decode voordat de bliksem de Tranverter uitschakelde
2015-04-28 13:46  PA0O  70.092524  +13  0  JO33hg  1  PE1COS  JO33ge  11  211

de  BLF177 heeft geen bias meer BE spanning 3,5V 
jammer shit happens

Ik denk over een spanning surpressor in de antenne kabel.
Hoe nu juist de transverter geraakt is en ( gelukkig  )  niet de K3  dat is niet duidelijk
De K3 heeft wel surpressor dioden op de antenne aansluiting.

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