Yet another site about Ham Radio. Mainly with information about my 'Home Brew' stuff
... and some useful information (at least for me ;-) with links to other sites.

Some content specifically meant for local use is in Dutch



73, Rob



Fan Dipole for 160m-80m-60m-40m-20m

In this new version of the Fan Dipole, the 160m band must be included... (for many decades the lowest radio frequency band allocated for use by amateur radio)

Main goal is to end up with a fan of resonant dipole antennas on all the included bands.

My garden is to small for full-size 80m and 160m band dipoles, so I had to shorten and or fold (and even combine) some dipoles.


Schema Fam dipole 160m-80m-60m-40m-20m

>> Read the whole story

Radio propagatie (WikipediA)

Ionosfeer reflektie
[ info from and link to WikipediA ]
Ion osfeer
[ info from and link to WikipediA ]


NLX204 op een Raspberry Pi 4B - 4GB

Vanaf begin 2020 draait NLX204 (was MMX411) op een Raspberry Pi 4B - 4GB.

Met name de afhandeling van de diverse dashboards gaat hierdoor merkbaar sneller.

MMX411 Raspberry Pi 4B - 4GB



As of 2018-01-10 my call sign is

Call Plate PA0ROB

Papa  Alfa  Zero  Romeo  Oscar  Bravo

.--.  .-  -----  .-.  ---  -...

website url: pa0rob.nl
redirect to: pa0rob.vandenhoff.info

Otober 2017 antenna setup
Back yard view

Antennas currently in use at the home QTH:

Active on 160m, 80m, 60m, 40m, 30m, 20m, 17m, 15m, 12m, 10m, 6m, 2m and 70cm in several modes.

Hope to meet you on one of those bands.

73, Rob

Atmospheric CO2

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