Greg's GroundSphere build attempt

Added by Greg Moran about 2 years ago

Howdy all,
I'm going to start a maker build project, and i'm choosing the GroundShpere. I've sent a couple emails back and forth to Aaron, and he's able to be my supplier for some of the special electronics components. I'll find all the standard hardware parts locally.
Wish me luck!
Respect,
-greg


Replies (4)

RE: Greg's GroundSphere build attempt - Added by Jeremy Wright about 2 years ago

I think I might have an extra ground plane that I can ship to you if Aaron doesn't have one.

RE: Greg's GroundSphere build attempt - Added by Greg Moran almost 2 years ago

Howdy Jeremy,
Aaron and I are working it out. I actually may try the scaled up UHF or VHF version. Thanks for the offer though.

RE: Greg's GroundSphere build attempt - Added by Greg Moran almost 2 years ago

Howdy Aaron,
I have a scaling question about the Preamp. the Frequency response of the circuit design (http://www.g0mrf.com/432LNA.htm) looks like it goes to poop at the lower frequencies. Did you look at that in the scaled-up designs in the UHF and VHF versions of ground sphere?

RE: Greg's GroundSphere build attempt - Added by Aaron Harper almost 2 years ago

Yep. The preamp was specifically selected for the 900MHz Ground Sphere,and will work quite well for UHF. I have another amp I am working on for VHF.

(1-4/4)