UHF Satcom Signals?

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Flatliner

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SDRPlayer, the RSP isn't sensitive at 250MHZ. RBM used a RTL based receiver which is very useful for satcom (very hard to overload as the signals are so weak).
 

SDRPlayer

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yeah, i noticed that also. i have been using my RTLSDR.comV3 and Flightaware dongles with better results at those frequencies.
 

rbm

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a couple of pics as promised. it's not pretty as i don't have the correct tools for cutting thin metal and i haven't made a frame yet, but a nice improvement on my original signals.
That looks just like mine! ;)



I have a pre-amp mounted inside the PVC right at the antenna.
A bit of over-kill but it's fun.

RF Bay, Inc LNA-580 amplifier: 0-580MHz High IP3 LNA, NF=0.7dB
Frequency Range:10-580MHz;
Noise Figure: 0.7dB at 250MHz
Gain: 23dB at 250MHz
P1: +19dBm
IP3: +33dBm
DC Voltage: +5V/70mA
SMA Female Connector

Rich
 

SDRPlayer

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i like it! nicely finished with the end cap on the base. i didn't cap mine, so i could sit it on a short stake for stability.
 

rbm

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i like it! nicely finished with the end cap on the base. i didn't cap mine, so i could sit it on a short stake for stability.
I drilled the cap with four holes so I could permanently mount the antenna to a fixed surface.

All I have to do is remove the three screws around the base and pop it off of the end cap, screw the end cap down, and reinstall the three screws.

But .......

I never did make it permanent. ;)
I just take it outside when I want to listen to SatCom stuff.

Rich
 

prcguy

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Hey, I have one that looks like that too!
prcguy

That looks just like mine! ;)



I have a pre-amp mounted inside the PVC right at the antenna.
A bit of over-kill but it's fun.

RF Bay, Inc LNA-580 amplifier: 0-580MHz High IP3 LNA, NF=0.7dB
Frequency Range:10-580MHz;
Noise Figure: 0.7dB at 250MHz
Gain: 23dB at 250MHz
P1: +19dBm
IP3: +33dBm
DC Voltage: +5V/70mA
SMA Female Connector

Rich
 
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