Skip to main content

4M WSPR 24 hours "top" list unique decodes




WSPR 4M  last 24hrs unique decodes    all Tropo


TimestampCallMHzSNRDriftGridPwrReporterRGridkmaz
 2012-07-04 10:44  GM4FVM  70.092510  -19  -4  IO85wu  20  PA0O  JO33hg  632  113 
 2012-07-04 22:36  PA0O  70.092500  -18  -1  JO33hg  5  G3SHK  IO90dx  623  249 
 2012-07-04 22:14  G3SHK  70.092511  -19  -1  IO90dx  5  PA0O  JO33hg  623  63 
 2012-07-04 15:48  G4PIR  70.092510  -18  1  IO93ho  5  PA0O  JO33hg  531  91 
 2012-07-04 15:52  PA0O  70.092499  -24  -1  JO33hg  5  G4PIR  IO93ho  531  277 
 2012-07-04 16:54  G3SHK  70.092504  -28  -3  IO90dx  5  PA0TBR  JO22pi  506  70 
 2012-07-04 22:24  PA0TBR  70.092525  -20  -2  JO22pi  20  G3SHK  IO90dx  506  255 
 2012-07-05 04:24  G3SHK  70.030112  -22  -1  IO90dx  5  PA0JME  JO21ri  501  82 
 2012-07-04 16:02  PA0TBR  70.092520  -19  -3  JO22pi  20  G4PIR  IO93ho  467  290 
 2012-07-04 16:06  G4PIR  70.092518  -23  -1  IO93ho  5  PA0TBR  JO22pi  467  105 
 2012-07-04 09:54  G3SHK  70.092496  -13  -1  IO90dx  5  G0MJI  IO83ni  276  344 
 2012-07-04 10:16  G0MJI  70.092512  -22  -1  IO83ni  10  G3SHK  IO90dx  276  163 
 2012-07-04 16:52  GM4FVM  70.092461  -24  -4  IO85wu  10  G4PIR  IO93ho  255  169 
 2012-07-04 15:28  G4PIR  70.092492  -28  1  IO93ho  5  GM4FVM  IO85wu  255  349 
 2012-07-04 16:02  PA0O  70.030125  -23  0  JO33hg  5  PA0JME  JO21ri  227  201 
 2012-07-04 09:54  PA0TBR  70.092526  -12  -4  JO22pi  20  PA0O  JO33hg  136  41 
 2012-07-04 10:38  PA0O  70.092496  -24  -1  JO33hg  5  PA0TBR  JO22pi  136  222 
 2012-07-04 14:48  G4PIR  70.092472  -14  -1  IO93ho  5  G0MJI  IO83ni  103  255 


I  am home with small medical problem  infection at right elbow. 
No problem I have learned to use the CW paddle  left hand..
Only  6M and 4M  are very quiet suddenly now I'm home.
Nice weather, we enjoy the blessings of the land-life.
In the bio-chemical industry zone... Where is al that cow shit coming from? I know they eat a lot of grass but that much!
Sorry its my nature to be "negative" I should have said the characteristic flavour and smell of the countryside.
I have a disposal bag ad hand ( kots zak ="pocket cost"  = translator )
 btw   once I saw  "trek ontlasting"  translated as appetite release    I think it should have been "strain release"  funny but still we use this expression when seeing a bad translation.


( I am aware this post contains errors too you are free to correct  the spelling errors.  )




  K3 PWR trouble.  TXG ERR  message sometimes and setting 5W fails  the power jumps back automatic to a lower level. 
After quick inquiry at Elecraft  1 of the LPA FET RD15HVF1 could be defective. 
Easy  check the gate-source resistance  should be high.  Here 1 of the 2 FET's  has a low R so it is time for a surgery again.
The  RD15HVF1 is a Mitsubishi VHF 15W  TO220  source to flange type.   7€ DutchRFschop already in the mail this morning!
No panic .. seems not difficult to replace. Only removing the bottom shield I hope is enough to access the LPA Fets 
Clearing the holes is the difficult part. Especial the source grounded middle via.
My de-soldering tool  alone could not do it. 60W adding flux etc.
And bend the pins the wrong way that is correct.



The one in the middle has low gate R.    
But  LPA bias  needs readjust after replacing with hopeful positive result..
That means removing of the KPA3 to access the bias controls. 
I'm becoming a K3 specialist...
Meantime problem is solved. replaced the FET and adjusted bias. 
Output normal 12W HF and 8W 6M. When starting TX the output level settles quick not like before slowly increasing to the set-point.
The K3 has an AGC on TX . that is responding normal again. Is was slow because of the missing gain it tried to regulate up to get the selected output level.  On 80m still 5W after some time. 
This AGC  is a nice feature it prevents overdrive also when using digi-mode audio on line in





























































































































































































































Comments

Post a Comment

Archive

Show more

Popular posts from this blog

2011-01-22 DIAMOND 2m 70cm 1m30 Colinear inside

Having relative poor signals on the local 70cm / 2m channels using this X50 Diamond collinear 70/2  1m antenna at a height of 25m. I needed to investigate what could be wrong. Measuring the cable only 3W is left for the antenna of the 10W 435MHz output from a IC451E The cable is 30m type H100 Z50 10mm outside diameter it is semi air-spaced but has an impossible 4mm² solid CU inner conductor not much air left. I preferred the H43 Z75 cable having lower loss and mechanical better ratio in conductor size. My antenna uses SO239 connector UHF type semi air spaced isolator.  3W should be enough for a comfortable noise free FM signal. But only 27km away at PA0A the signal is weak too weak something must be wrong? I made a simple reference dipole of 2x17cm CU wire. With this dipole the signals where totally worse. So the Diamond does work? I got curious to look inside. Maybe moisture penetration degraded the antenna. This  antenna is rainwater close in its normal vertical mounting posit
8 comments
Read more

SPF5189z Low noise preamp 23cm

 14-4-2018 updated Above the low noise  preamp 50 - 4GHz    ebay  6€ Tested  2 small porto antennas 1 Baofeng UV antenna left   2nd best signal on PI2NOS 2 eBay DIAMONDSRH805S  wide band 144/432/1200  it works for its size as expected 3 piece of wire :   best signal in the setup... Unit under test at workbench. It was stable  50mA  at 5V   few days,  but sudden the current went up to 100mA And i could  no longer adjust it with the negative bias Voltage. The - Voltage went to zero and the SPF input port became low Z. This SPF5189z was broken  no oscillations, no input overload just it broke while i was receiving the PI2NOS 430.125 using a small antenna at the workbench. The specs of  SPF5189z  say it has an internal circuit  regulating the bias current. Replaced . again   with an other of the 5 spare SPF i have. The new one again could be adjusted at 50mA  5V  The current raises to 150mA  when removing the  negative gate voltage. Where is that internal bias cir
11 comments
Read more

BIJZEN mast en ontwerp fouten.

In 2013 heb ik een Bijzen aluminium mast 3 x7m  opgehaald  bij iemand die hem niet mocht plaatsen Gemeente Oss  dat zegt misschien al genoeg.. Pas in 2018 heb ik hem geplaatst had ik veel eerder moeten doen. Mooie mast, mijn xyl vond hem zelfs mooi. Hij is licht, de 3 delen wegen  235kg  het vaste deel 102kg dus het te lieren gedeelte weegt   slechts 133kg + ca 50kg rotor + antennes etc.  De elektrische lier is wel erg zwaar 30kg misschien wel maar die zit onder    Antenne  3ele Steppir  19kG  +  G2500DXC rotor: 3.6kg  + rotorbuis 12 kg  +  kabels 10kg  + 5/7 ele 6m beam. ongeveer 50kg Je moet niet te dichtbij  kijken, dan valt op dat het Aluminium lastwerk heel slordig is gedaan, scherpe bramen aan de lassen waar kabels door kunnen worden beschadigd of haken Er is zeer ! weinig ruimte voor de rotor een YAESU G2500DX past net maar dan ook net  met beetje buigen van  kruisverband. Het Rotor platform kan wel een meter hoger dat geeft meer  buislengte boven het zit nu op 3.5 meter van het
3 comments
Read more