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Microwave up to 76 GHz
Tropo/EME/Aircraft scatter

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

This website is updated: 23 mei 2021

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

My favourite operation for Ham radio is weak signal communication

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

360 degrees image off my shack


Welkom in Zuidoost Drente behalve bij de Veron afdeling Emmen

Afbeeldingsresultaat voor welkom in zuid oost drenthe

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

Wilt u weten wat de aanleiding is van deze pagina,
kijk dan even in het chronologisch overzicht

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)

WX at my home: in JO32sq


Added a 24 Hours measurement

Last update:

Download my Webinar:
3 years propagation measurements on 80 mtr

Perseus modification using a GPSDO

Added 10 GHz polarisation for EME

Download my Webinar from the website

Using VK3UM calculator and
"What's different on 47 GHz EME"
to improve calculated results

I measured Return Loss of my 47 GHz feed

I Measured nF of the 47 GHz pre amp and sun noise

Effect on image rejection at system nF

Cooling the LNA using Peltier elements

Updated what's different on 47 GHz EME

Waveguide propagation by F6DRO

Latest information on my 47 GHz EME system
My progress in 47 GHz EME and extra pages
What's different on 47 GHz EME
47 GHz feed
47 GHz Performance table

Optimizing the feed in the antenna focus on mmwave

repair of a HP8970b noisefigure meter with error 18

Receiving the Alphasat beacon on 39.4 GHz

Opened a YIG from my repaired HP Spectrum analyzer

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

Repair off my Perseus power supply

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

My project: try to use a VSAT terminal for EME

Propagation measurements NVIS 80 mtr beacon PA0RYL

 Added some info on my 250 W 70 cm PA

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

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.

 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

Small Dish EME listening to DL0SHF

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

a  low cost RX system for DL0SHF


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



I have equipment for all microwave bands up to 76 GHz but due to the many projects at this moment only active on 23 cm tropo and EME.

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 GM4CXM
729 km

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


Read my story on this very interesting propagation




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


Information on how I am using the IN3HER antenna control  



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 First ever QSO's 18-9-2001
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.



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


My Other Hobby, Flying 


  My VFR flight to Greece
  My VFR flight to Spain/Portugal 


My VFR flight to Croatia and Bosnia


My VFR flight to Bulgaria in 2007  


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


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