PA0PLY
Hello dear OM/ YL, welcome to my HAM-site.
My activities concentrate on EME ( Earth-Moon-Earth) operation at various frequencies.
Each specific frequency activity can be found in the section my activities:
– 432Mhz
– 1296Mhz
– 2320Mhz
– 5760Mhz
– 10368Mhz
– 24048Mhz
Additional interesting information can be found on the articles page.
As a result from the activities during the restoration of the famous Radio Telescope at Dwingeloo, I started to become more and more interested in Radio Astronomy. See Camras this website.


Interesting sections website
Based on the yearlong experience on various frequencies I collected these cases, investigations and research on this website in various Articles. These are shared in different sections devided per frequency. If you are interested, go for an overview to current articles here.
For each frequency I collect the initial contacts I made over the years. These lists are divided by frequency and can be found on the page EME Activities.
In addition to these pages, there are also items I sell. Under the section for sale is an overview of the current available devices.
Thank you for visiting the website; in case you have any question or remark please contact me here.
FAQ - PA0PLY
My name is Jan and I’m a radio amateur since 1975. My interest started in participating VHF contests on 144MHz. Read more..
Send an email with EME Directory update here
I wanted a simple and cheap system to be able to decode Q65 signals on 10Ghz EME.
A simple LNB is good to convert the signals down to an acceptable level for a RTL dongle but the
stability is by far not good for decoding SSB or CW signals. So maybe this instability will also not
work out properly for digital signals. Read more..
Overview of the final set-up you can find here.
In this section I describe the modification of an ANDREWS UMTS unit to be used for 2320Mhz.
There are several Radio Amateurs who already did modify this type of SSPA.
[ DL4MEA, OK3RM, SP6JLW,OE3EFS] Read more..
K-rack Varian TWT amplifiers were very popular units for GHz frequencies. These deliver an easy
40Watts although the official spec’s were 20Watt. Read more..
On 432MHz and below, we all use linear polarization for EME. Yagi stations use the same
polarization that we use for other kinds of VHF/UHF DX, which is usually horizontal.
A big problem with VHF/UHF EME is that the transmitted polarization is usually rotated
before it reaches the receiving station Read more..