Home EME Why QRV on microwave Weak Signal Dag 2018 projects About me My Activity Weak signal propagation Technical Observatory Flying & My Pets My new QTH

Welcome to my Website: 17660.gif (9972 bytes) Microwave up to 76 GHz/Tropo/EME/Aircraft scatter               


This website is updated: 30 mei 2020

You are invited to write something in my guestbook                     
Read my guestbook  

all pages from this website are copyright PA0EHG
Nothing from this page may be used for any Dutch magazine for publication without my written approval


Welkom in Zuidoost Drente behalve bij de Veron afdeling Emmen

Afbeeldingsresultaat voor welkom in zuid oost drenthe

Niemand van de afdeling die je kent en toch een bezwaar om toe te treden als lid ??

Dat ik geen lid mag worden van de "zendamateurvereniging Veron" zegt meer over Veron als vereniging dan over mij als zendamateur !!

Sinds ik geen lid mocht worden van Veron heb ik al diverse keren het aanbod gekregen vanuit diverse Veron afdelingen dat ik bij hun welkom ben als ik me weer aan zou melden als lid.

WX at my home: in JO32sq


Added a 24 Hours measurement

Moving QTH to DL but 23 cm tropo station will be rebuild in old QTH about 80 mtr to south
3 Mtr EME dish and 2.5 Mtr tropo dish dismantled and placed in temporary storage

In oktober 2019 I moved the EME antenna gearbox with support from my old QTH to my new QTH
Weight of the gearbox and support 1300 kg
The first step of getting QRV on EME again is taken
My aim is to rebuild the EME antenna during spring 2020

Also I started building a observatory for my Meade 12 inch telescope
For more info on my observatory take a look at this page

My favourite operation for Ham radio is weak signal communication

In quality mode I have heard way too many non quality conversations


Join in at the world of microwave amateur radio
your hobby will never be a dull moment.


Last update:

Latest information on my 47 GHz EME system

repair of a HP8970b with error 18

Measured signal strength, several days from Alphasat beacon

Updated 24 GHz EME performance table, new station: DB6NT

Mounted my 12 inch LX200 telescope

Measured sun and moonnoise on 47 GHz EME system

worked on my antenna encoders

Opened a YIG from my repaired HP Spectrum analyzer

Testing with PWM power supply to decrease gearbox speed

My first measurements on 47 GHz EME

Measured solar noise using solar outage
Measured doppler from geostationary orbit, Alphasat

My progress in 47 GHz EME and extra pages

What's different on 47 GHz EME
47 GHz feed
47 GHz Performance table

Receiving the Alphasat beacon on 39.4 GHz

Analysing my Cloudwatcher rain sensor problem

Discussing the future of ham radio

Maintaining ham radio is no objective - developing ham radio is

A very true opinion from DF5AI, also with respect to  ham radio organizations

Many national ham radio organizations have a self-conception which is perhaps best described by a self-appointed ham radio government (some of them are perhaps better described by a totalitarian regime locking up its people behind an iron curtain of ignorance)

Building my Observatory

A versatower and my 2 mtr antenna system for my DL QTH

Please help me stop the interference from DK2SC on my propagation measurements

Read about the formal complaint at the BNetzAgentur

Added Ionosferic Dopplergrams measured from dec 2018 until march 2019

Added some information about the modification of the 250 W 70 cm PA

I Listened to the Christmas transmission from Grimeton Radio/ SAQ on 17.2 kHz

Repair off my Perseus power supply

I am participating in the Dutch RF-Seminars

Will the new Icom-9700 be a game changer for 23 cm ?

Take a look at my video stream of the received signal from PA0RYL

My newest project: try to use a VSAT terminal for EME

At last some activity again: during 2018 IARU 2 mtr contest

Propagation measurements NVIS 80 mtr beacon PA0RYL

 Added some info on my 250 W 70 cm PA
Added projects page and several projects

Hier is het verslag en de presentaties te vinden van de
derde DKARS VHF-UHF-SHF Weak Signal dag van 13 oktober 2018

 new pages:

 360 degrees image off my shack

Aircraft Scatter My Activity Troposcatter EME


Receiving DL0SHF
The DL0SHF beacon info
Microwave/ MM-wave Projects Information


Weak Signal Publications my 23 cm remote station PathProfile from G0MJW



about PA0EHG History beacons PI7EHG Red Pitaya SDR Other websites


 now on 23 cm

 now on 3 cm 


DL2ALF,  he published a new version for aircraft scatter prediction
Get latest info at

Interested in using the SM7LCB maps and a radar picture, bit more complicated than Airscout but works fine

 added the SM7LCB maps on my website because these are not working on the SK3SE site anymore.

No QSL cards via the buro please, probably these will return to you.

As I am no longer member of any Ham radio society,
 you cannot send QSL cards to me via the buro.

If you need my QSL card, pse send a QSL direct, you can find me on
I will send you my QSL card in return.

Recently added on my website

 Moving to my new QTH in DL 

my activity during the IARU sept 144 MHz contest 2016

 listen to the big signal from OK1KUO on 23 cm Aircraft scatter, 849 km also good signal in SSB

 Added a simulation off my 24 GHz omni antenna

 Read my page on the first ever 24 GHz two way contact between PA and G

 This is how and why I use Spectravue

 My experience with the I0JXX 25 el 70 cm antenna

 Do's and Dont's for very weak signal communication


 parabolic dish calculations:
Calculate the shape of your dish

Calculate the antenna beam width of your dish

EME 2014 and receiving DL0SHF

 I attended the EME 2014 meeting and gave a life demo on receiving DL0SHF on my small system

Thanks very much to the organising group for this fine conference


Me and my small system in front of PB-8 the 13 mtr dish used on 5760 MHz EME


listening to DL0SHF EME beacon on 10 GHz with 50 cm dish

Added my RX test from DL0SHF on low power with good JT4G decodes

 Building a new low cost RX system for DL0SHF


Mostly I am active on the microwave bands, tropo on 23 cm and EME on 5.7 , 10.3 and 24 GHz.
I have equipment for al microwave bands up to 76 GHz but due to the many projects at this moment only active on 23 cm tropo and EME.

My recently acquired 70 cm PA using a RS1032 tube

New PA for 23 cm tropo work, it will improve my    TX signal by more than 3 dB   

Build by PE1RKI


My 2.5 mtr dish for tropo

My station:
2.5 mtr dish at 10 meter over ground
250 W output

Take a look what I worked on my
My activity page


A new antenna system for the
2 mtr remote station
from PA3BIY

2 times YU7EF 12 elements yagi
at 12 mtr over ground

During Perseids 2011 Peter and I made
 in total almost 90 MS QSO's

We were QRV during the IARU September contest 2015. In total we worked 366 qso's

This is what we worked

23 cm
Aircraft scatter
during QSO with
686 km

listen to recording from a qso

My signal at SP1JNY

SP1JNY at my place

23 cm
Aircraft scatter
during QSO with
729 km


Read my story on this very interesting propagation

More QSO's on 6cm eme during the DUBUS contest April 2010 and on 16 may 2010

Information on how I am using the IN3HER antenna control 



5.760 GHz EME

3 mtr dish

Auto tracking

On 15 August 2009 I made my first 5760 MHz EME QSO

10.368 GHz EME

On 15 September 2001 I made my first 10368 MHz EME QSO with W6HD

24.048 GHz EME

On 6 April 2008 I made my first 24 GHz EME QSOs

Worked OK1KIR 9-6-2011 on 24 GHz EME
for the first PA-OK and #6 on 24 GHz

Worked on EME              

5.760 GHz

10.368 GHz

24.048 GHz

19 initial contacts
30 QSO's


Audio recordings from: OE9ERC                                          OK1KIR

20 initial contacts
37 QSO's
4 SSB random contacts

Audio recordings from:  IQ4DF SSB
                                     DL0EF SSB

6 initial contacts
7 QSO's


Audio recordings from: W5LUA


The story of my first 24 GHz EME QSO as published in Electron (in Dutch language)

The first 24 GHz EME QSO by W5LUA and VE4MA




EME  Updated 19-3-2002 with new EME links  
My EME station Updated 8-3-2002
RX optimalisation   Updated 19-3-2002 with latest measurements and new link on moon noise
What's different on 10 GHz EME   Updated 19-3-2002
EME Operation procedures 28-12-2000
EME Operations by G3SEK  29-12-2000
24 GHz EME between W5LUA and VE4MA Updated 19-3-2002 added a link with photo's from W5LUA and VE4MA


EME performance table's

6 cm eme stations performance and photo's

 9 cm eme stations performance table

 24 GHz EME stations performance and photo's
(update 10 december 2019)

10 GHz EME stations performance

DJ3JJ performance tables 2 mtr 70 cm and 23 cm

Interesting article from DJ9BV and F6HYE on EME performance as published in Dubus 1992


Ehgc2.JPG (32832 bytes)





Solar X-rays:  

Geomagnetic Field:  





   More info about this Solar Activity Monitor


General information



On 26 feb 2012 I measured solar noise on my 23 cm tropo station

OCXO experiments  11-2-2004
My Home location 17-9-2001
My take off view seen from 9 mtr above ground  8-3-2002
home station from PA0EHG
Portable station PA0EHG Updated 18-9-2001 with new photo's
My First ever QSO's 18-9-2001
Solar Activity 28-12-2000
10 and 24 GHz beacons in PA
RF tools: interesting RF calculators
parabolic dish calculations:
Calculate the shape of your dish

Calculate the antenna beam width of your dish
Waveguide sizes for Microwave amateur radio  9-11-2002 


Microwave DX-pedition ; QSO between F and G on 47 GHz.


Microwave Activity group

24 GHz projects

12 Watt on 24 GHz          Feedback from G4FRE 29-12-2000
24 GHz humidity loss
My 24 GHz EME feed
combi feeder 10/24 GHz
24 GHz Omni antenna
some audio samples 10-6-2001 added first PA on 76 GHz
Understanding Troposcatter
Troposcatter calculations


Ysselmeercontest 2003 16-2-2003
Ysselmeercontest 2002 8-3-2002
Ysselmeer contest 2001 results 23-5-2001
Photo's of the Ysselmeercontest 2001  Updated 30-10-2001 with photo's off ON4CDU
Ysselmeer contest 2000    Updated 30-1-2001
Photo's of the Ysselmeercontest 2000   Updated 27-1-2001 with new photo's
Results of the Ysselmeercontest 1999

Microwave Meeting Heelweg

Microwave meeting Heelweg 2013
Results from noise figure measurements 2005 2-3-2005
Microwave Meeting Heelweg 2005 1-3-2005
Results from noise figure measurements 2004 16-01-2004


My Other Hobby, Flying 


My VFR flight to Greece   20-7-2004
My VFR flight to Spain/Portugal  9-8-2005

My VFR flight to Croatia and Bosnia

My VFR flight to Bulgaria in 2007 21-2-2013



E-mail address from PA0EHG :

all pages from this website are copyright PA0EHG
Nothing from this page may be used for any Dutch magazine for publication without my written approval


Home EME Why QRV on microwave Weak Signal Dag 2018 projects About me My Activity Weak signal propagation Technical Observatory Flying & My Pets My new QTH