On Sun, Jul 22, 2012 at 3:21 PM, Alexander Chemeris
<alexander.chemeris(a)gmail.com> wrote:
On Sun, Jul 22, 2012 at 10:51 PM, Thomas Tsou
<thomastsou(a)gmail.com> wrote:
Overall measurements are close (either above or
below) to 1.5/5 for
the 900 band in general. 945 MHz is currently the best case, but that
is the frequency I spent the most time on with calibration. Do we need
to be consistently below 1.5/5 or just close?
Thanks for the measurements. At the end we should be below that at all
GSM bands. For now it's fine to be close.
I also noticed that your frequency is far off - could you calibrate it
and make pictures of the best and worst case in the 900 band?
Perhaps this is a silly question, but how do I calibrate the clock? or
use an external reference signal?
And just to be sure - could you check what TCXO do you
have on the
UmTRX? It should be TCD4029-26.0M, probably marked like PLEU4030Z.
2600 028
PLEU 4030Z
Thomas