Hello,
I would like to create some charts for ADEV for following setup:
HP5386A counter connected to External REF. (OCXO). The input of counter
connected to my DDS VFO. The frequency on VFO is 2853000 Hz.
Here is what I got from counter via GPIB:
S +3.505082408E-7
S +3.505082408E-7
S +3.50
> A tri-band antenna design is... uh.. difficult.
> At the moment I am just playing with some software. Yes, I might
> end up with something that resembles an antenna design. But with my level of
> knowledge getting a good single band antenna would be already quite
> some feat. Designing a multi-ba
Hi
Obviously this becomes a “that depends” sort of question. For timing, you
probably can
do a fine job with an antenna that nukes everything below 20 degrees to the
horizon. That
*assumes* that you have a good enough view that it does not pull to many sat’s
out of your population
*and* that
Attila,
On 04/29/2015 10:43 PM, Attila Kinali wrote:
Moin,
I recently discovered openEMS[1], which is, very simply put, a fancy
antenna simulator. I played a little with it and thought about
trying to optimize an GPS patch antenna design for timing use.
Will take it for a test-drive to see ho
Hi
If you want to dig into something like this to learn and to maybe fiddle with a
downconverter design - sure, that’s a great thing to do. It’s a hobby and
(hopefully)
you are set up to handle the task. You probably are already a member of a list
(or three)
where you have access to info on yo
Hi
Remember - a number of these boxes go *way* back in time GPS wise. Often the
basic guts were a mix and match affair and this or that sub-system
was frozen for a decade or more. At this late date, figuring out why they did
that, or why they had multiple sub-systems is going to be tough. I sus
