ON4DPX

All-round radio electronics nerd .
Passionated about antennas and RF .
Active from DC to GHZ and from local to moonbounce

[ON4DPX @ON4DPX]

@ibelings I want one 😁

[ON4DPX @ON4DPX]

A trip down memory lane 26 years ago when I organized my first LAN party , spending 3 days of playing Counterstrike and sharing music and movies.
What a great time!

[ON4DPX @ON4DPX]

@uhf_satcom Half-Life! Nice! Damn i’m really that old ;-)

[ON4DPX @ON4DPX]

@Dave_Cawley No its lineair, purpose now it to test if the feed illuminates the dish well. Next step would be adding a septum for L/RHCP.

[ON4DPX @ON4DPX]

Made a new feed for my DSN system, measured sunnoise and got a nice average of 8dB on a 90cm dish.

[ON4DPX @ON4DPX]

@Dave_Cawley I have modelled the horn for a dish with f/d 0,6, it has a direct WR90 input to match the LNA.

[ON4DPX @ON4DPX]

@xjamesmorris Its a Skywatcher EQ6

[ON4DPX @ON4DPX]

Some more directional coupler fun.
#rfmechanics

[ON4DPX @ON4DPX]

More mechanical RF fun, made a high power directional coupler.
#rf #rfmechanics

[ON4DPX @ON4DPX]

For the love for RF mechanics !

[ON4DPX @ON4DPX]

Crowded 40m tonight !

[ON4DPX @ON4DPX]

@clockspectrum This one used to be my reference for years in all kind of antenna related stuff , very curious about Balanis .

[ON4DPX @ON4DPX]

My new reading pleasure

[ON4DPX @ON4DPX]

Some RF mechanics fun

[ON4DPX @ON4DPX]

@StaticVoyager What freq/channel ? It amazes me that they still broadcast analog.

[ON4DPX @ON4DPX]

Mondayafternoon job : making antenna parts .
#rfmechanics

[ON4DPX @ON4DPX]

Nice signal and good music from @ManxRadio on 1368 kHz .

[ON4DPX @ON4DPX]

@JL1HID Wow this is the model we all have been waiting for ! Dual “key” function and the “metei” and “spep” will make even make DX possible under bad conditions!
Thanks AI you can’t fool a old hand ham radio operator 😉

[ON4DPX @ON4DPX]

@uhf_satcom The good old days !

[ON4DPX @ON4DPX]

@otti_sat Thanks ! Indeed , wel i said non lind of sight ;-)
Funny fact is that right in the middle of that pad is a small hill .

[ON4DPX @ON4DPX]

First qso on 10Ghz , 46km distance , stereo quality non line of sight . Great experience!