Sunday, July 24, 2016

WSPR screens 24hrs 70 50 MHz

                                          10 4 6m   QRM    200 kHz  repeated  in direction North  , still searching for the source .  it is 24x7 weak QRM

Thursday, July 21, 2016

top propagation 80m

out of the blue 80m had a top night

 2016-07-20 20:18  PA0O  3.594146  -17  1  JO33hg  5  ZL4LV  RE54ec  18590  61 
 2016-07-20 23:02  PA0O  3.594148  -14  0  JO33hg  5  VK6XT  OF86  14234  97 
 2016-07-20 22:54  PA0O  3.594148  -13  0  JO33hg  5  VK6XT  OF86  14234  97 
 2016-07-20 22:32  PA0O  3.594148  -15  0  JO33hg  5  VK6XT  OF86  14234  97 
 2016-07-20 22:42  PA0O  3.594148  -15  0  JO33hg  5  VK6XT  OF86  14234  97 
 2016-07-20 21:42  PA0O  3.594147  -19  0  JO33hg  5  VK6XT  OF86  14234  97 
 2016-07-20 22:42  PA0O  3.594148  -25  0  JO33hg  5  HS0ZKM/P  OK03gr  9045  79 
 2016-07-20 22:32  PA0O  3.594147  -26  0  JO33hg  5  HS0ZKM/P  OK03gr  9045  79 
 2016-07-21 03:16  WB5B  3.594062  -27  -1  EL16de  2  PA0O  JO33hg  8589  36 
 2016-07-21 03:18  KD6RF  3.594124  -20  0  EM22la  5  PA0O  JO33hg  7916  38 
 2016-07-21 03:32  KD6RF  3.594124  -24  0  EM22la  5  PA0O  JO33hg  7916  38 
 2016-07-21 03:02  KD6RF  3.594123  -20  0  EM22la  5  PA0O  JO33hg  7916  38 
 2016-07-21 01:34  PA0O  3.594145  -22  0  JO33hg  5  N4TVC  FM18is  6287  292 
 2016-07-21 01:16  PA0O  3.594145  -23  0  JO33hg  5  N4TVC  FM18is  6287  292 
 2016-07-21 02:52  PA0O  3.594145  -26  0  JO33hg  5  N4TVC  FM18is  6287  292 
 2016-07-21 02:22  PA0O  3.594147  -23  0  JO33hg  5  K1JT  FN20qi  6001  291 
 2016-07-21 02:52  PA0O  3.594147  -23  0  JO33hg  5  K1JT  FN20qi  6001  291

Tuesday, July 19, 2016

W10 upgrade failure

This Thinkpad W510 with Samsung 840EVO 500GB SSD  does pass the W10 compatibiliteit test
but then fails to upgrade.
Would like to change to W10 since it is an improve over W7   
"the system reserved partition can not be updated"
must be the 100MB active boot partition that has only 7MB free?
The message is unclear but has to do with a partition that can not be altered so it must be the 100MB partition. The W10 test did overlook this.
And there seems no way to increase this 100MB partition.

Windows disk-manager can free diskspace  at the  upper-side  "right" of the C partition 
Win.DM is easy  no need to reboot to apply changes like other DM need.

I need free space adjacent to the 100MB to resize it to 200MB f.i.
Have not found a disk manager that can do this.
I tried:   Minitool Partition Wizzard Free 9.1    (download name:  PWfree91.exe)
There  it looks as if it is possible to increase the 100MB partition but after reboot the Partiton boot system did hang with message do not switch off, Partition manager will automatic reboot after finishing the pending tasks. . The timer struck at 24 sec  only the HD led pulsing 1/second.
After 1 hour i  forced a reboot nothing happened  ...    no damage done..

Monday, July 18, 2016

CQWW VHF 50mHZ ervaring

Zaterdag  pas laat in de middag QRV  6m was toen open naar  UA en YO  misschien al langere tijd.
Wist niet welke contest het was, pas zondag hoorde ik van IS0BSR  de CQWW-VHF dus.
PG7V   contest agenda is perfect  maar alleen voor HF.
De  CQWW-VHF contest heeft voor VHF de perfecte EXCHange.
alleen  CALL  en locator(4)  dus JO33   alleen de echte informatie zonder
overbodig rapport en serial.

Zeer snelle QSO's zijn zo mogelijk  een korte reflectie is al voldoende.

LZ  YO SV E7  UT R7  en TA2AD
29 QSO

best DX EA8DBM 3363km  schatter signaal klonk als tropo 529

SV3BSF/B  zondag ochtend haast continue te ontvangen
maar toch geen andere signalen uit Griekenland
veel CQ zonder response terwijl het SV3 baken steeds goed doorkwam
toch werden LZ en SV gespot
slechts 11 QSO  zondag
waarvan DX

antenne HF/6M(5e)  ca 22m bg    4m(5e) 23m bg

Friday, July 15, 2016

EWB Multisim

This 10MHz RF amplifier design is drawn and optimized for gain  using Multisim 10.
This Electronic workbench program is a pleasure to work with.
Circuits drawing modifying and testing is easy and quick. 

The ease of drawing is even outperforming Schemeit the perfect free online circuit drawing tool offered by Digikey 
But version 10 does have some problems. 
In the process of optimizing it sudden can go wild.
The virtual meters give strange impossible values.
The output sudden drops from 1.5V AC  to a few uV
When checking its own simulating credibility by placing a Voltmeter direct over its own the 5V supply, erroneous values are displayed.
As if the electrical rule database behind is damaged.
Could not find a tool to repair it. 
Only way is to go back to the latest saved working model.
Multisim is now at version 14. Possible this problem is solved in newer versions.
The program is a bit too expensive for hobby only.  

Thursday, July 14, 2016

WSPR 70 / 50 MHz over last week

13-7-2016   50.4358  D4C/B  hrd 569  HK76mv    evening  + ES  1 skip Italy I0

70MHz wspr

2016-07-08 01:52  PA0O  70.092550  -22  -2  JO33hg  5  M0NKA  IO92ak  583  264 
 2016-07-07 18:26  G6HSM  70.092474  -25  -3  JO01oe  1  PA0O  JO33hg  435  56 
 2016-07-07 15:12  PA0O  70.092549  -23  -4  JO33hg  5  DB0ZDF  JN49cx  382  163 
 2016-07-13 14:34  G3THQ  70.092540  -27  0  IO91un  5  G0MJI  IO83ni  265  320 
 2016-07-07 22:24  PA0JME  70.092424  -25  -1  JO21ri  20  DB0ZDF  JN49cx  247  127 
 2016-07-07 17:32  PA0JME  70.092436  -24  0  JO21ri  20  PA0O  JO33hg  227  20 
 2016-07-08 15:44  PA0JME  70.092554  -12  -1  JO21ri  20  PA2GP  JO33hb  206  22 
 2016-07-07 16:34  PA4JB  70.092456  -27  1  JO22fb  20  PA0O  JO33hg  198  47 
 2016-07-08 13:02  PA0O  70.092592  -12  -1  JO33hg  5  PA4JB  JO22fb  198  228

50 MHz wspr

 2016-07-14 12:22  PA0O  50.294514  -25  0  JO33hg  5  RX3DHR  KO94ks  2095  72  2016-07-14 10:30  PA0O  50.294518  -5  0  JO33hg  5  UY0LL  KN79xx  2043  88  2016-07-10 17:38  PA0O  50.294529  -20  -1  JO33hg  5  EA4GJK  IN80fw  1569  213  2016-07-07 14:48  PA0O  50.294512  -26  0  JO33hg  5  OZ7IT  JO65df  428  57  2016-07-11 15:24  OZ7IT  50.294518  -28  2  JO65df  5  PA0O  JO33hg  428  242  2016-07-08 10:38  ON5PU  50.294519  -8  1  JO21lh  5  PA0O  JO33hg  245  27  2016-07-07 14:00  DL2ZQ  50.294480  -26  0  JO42vj  0.05  PA0O  JO33hg  234  296  2016-07-10 18:04  PA0JME  50.294537  -20  0  JO21ri  10  PA0O  JO33hg  227  20  2016-07-07 15:40  PA0O  50.294518  -24  0  JO33hg  5  PA4MSA  JO22ge  185  230  2016-07-07 17:42  PA4MSA  50.294513  -8  0  JO22ge  5  PA0O  JO33hg  185  49  2016-07-08 08:10  PA0O  50.294530  -25  0  JO33hg  5  NL8992  JO32fl  89  187 

Monday, July 11, 2016

2016 IARU HF World Championship Contest

IARU HF Championship 2016
high activity   3117 log's received   71 from PA

With SFI fixed at bottom line 95 propagation 10m was poor as expected.
Last week  wspr best 160m dx 630km
Surprised to hear anything at 28MHz.

few  USA 21MHz  no USA 28MHz that's is the present state of the HF propagation

But this can happen in a contest!
Called  by   5H3EE  TANZANIA  80m 3519kHz

RI1ANT n 80m CW in the contest ITU 69 good signal
but constant callers made a simple contest QSO  impossible
I do apologize  if I did call at the wrong time?
there was a HQ station and an other one constant calling
making a mesh and RI1ANT went QRT several times

2016 IARU HF World Championship Contest
             Callsign: PA0O
                       Single Operator Unlimited, CW Only, High Power

         Reported QSOs: 928
         Ignored QSOs: 2
       Confirmation #: 4334029.iaru-hf

Tanzania   5H3EE

Friday, July 8, 2016

The struggle to make the ADF4351 10MHz reference signal.

The ADF4351 PLL needs a  full TTL level  at 50OHm in the 10MHz reference.

The internal TCXO delivers 5V pk  at the ADF reference port.
Then the resulting signal at 1296 / 1152 MHz is a clean small carrier
about 60dB S/N  at the SDR RTL stick
Using  400mV tt  clean sinus signal from the amplified GPSDO ( 40mV pk)
gave a broad raspy tone at the output port of the ADF
I tried a MMIC demo ampl. with the MAR6  and INA10386
DC to 2GHz broadband amps  
got a clean 40mV pk 10MHz  at the input of the INA
 measuring 5V DC supply ,  2V bias at the output pin and  0.2V bias at the input pin
of the INA10386,  normal levels.
40mV tt at the input resulting in 0V out..
coupling C 10nF  L 10uH
Why this MMIC do not work for 10MHz ?
i do not know yet
maybe  my  10MHz  driving issue can be solved by a simple opamp
or an other discrete part amplifier like the one below
optimised in Multisim
I  have to be sure of the solution before I start to trial and error soldering again
It can not be that difficult to make a 3Vtt 10MHz clock  signal???

INA 10386  Agilent /HP  DC-1.8GHz  claimed 26dB gain
but i have  0 output at 40mVtt in ..

Saturday, July 2, 2016

ES 30 June

Exciting spots 50MHz    W7 's worked in DL  
nothing here..
JW7QIA  was only579   , more south everything was stronger JW7QIA was reported in ON  9+++   nothing new all seen before.
JW7QIA  had huge pile working split
worked before. Would been a new one on 70MHz ... but then only 599+ in ON and S-PA i am afraid 

I heard 70.063 LA2VHF  559 JP53
then heard LB3AG would be a new call  cq 56 70.200  
but he replied to an other PA3  much stronger of course and faded

did QTF 0 CQ'n for some time in the hope something might possible over the North pole
still we are close to the longest day solstitium zonnewende  always the most interesting time for 50/70 MHz propagation . however last weeks we rarely had sun the longest day was overcast and rain.
6M was wide open OH SM2 ES LA JW7QIA 
strong DL's backscatter working / reporting the rare W7 K7 west-coast square CN !!
but i was in the middle  in the death zone as used before
went QRT  too early?
later PE5T reported KL7PY !! 50106 10 seconds woow  only the 2nd time in PA that KL7 was reported /worked  it will be a dream dx for ever here i never hear anything worth to mention since 20 years
Kees is real top DX-er on any band  160 -4m   respect.

no N-America  and S-A yet at 6m
missed the huge 13-6 opening 
1 x JA 1x FR  this year at 6m   
entering July  the best ES part is over

delete a could be 4m QSO

DELFSAIL  July 1 2016   
very nice event  despite rainshower -summer  good live music 
like 4horsemen  Kensington  etc

Dar Młodzieży  was open for everyone 

First time DELFSAIL was 1986   by coincidence like 2016 during EU football
in 1986 Dutch football was still on high level
A lot has changed since then ..
6m  is death  and the dutch football millionaires are to busy with other things no time to play soccer. 

Thursday, June 30, 2016


This LENOVO X60  W10 upgrade   W10

W10 is working surprisingly well on this older laptop.
it seems less slow and all installed programs working  fine after the upgrade.

 2 problems solved  meanwhile
The Lenovo X60 did wake-up with WLAN adapter working  after unchecking power save on that device
And the 2nd WLAN router Eminent outside works after plugging the cable in the W-LAN port.
it was always?  in 1 of the LAN ports  i thought

But it has an issue with waking up the WLAN adapter
after wakeup it connects to WLAN but "no internet"

network diagnosis say  can not determen the problem
Intel(R) PRO/Wireless 3945ABG Network Connection
adapter reports this device is working well.

I know  I have to reboot the system to get the WLAN working again

 one way to trick this out is to select device  properties  and then change one of the many properties
just one  of them  remember the change. I changed the WMM Enabled setting
say okay and watch the WLAN icon right under corner of the screen it should turn red and come back again normal.
The adapter was reset without reboot  hurray!
There are many options but the most important the RESET is absent.
Now I have unchecked the power saving option of this WLAN adapter will see.
Why this simple reset is always missing in the PC WLAN devices?
a RESET function is one of the most important functions in the WLAN world
Some WLAN devices are very unstable, the time between failing  is short
some  WLAN devices need resets every few hours  other can work a few days..