on top the GPS rx giving the 1pps to the Progrock that outputs a 10MHz to the REF in of ADF4351a tuned to 1296.200MHz out the 23cm XVTR is next on the desk
the other picture is still crawling over the internet to my mailbox.
Another test with the ADF4351A / Progrock / QLG1 GPS
Using the ADF onboard 10MHz DIL oscillator
I got a clear T9 signal at 1296.185 MHz S9 +60 and more
on the IC706 144.185 as i.f. receiver.
The S reading drops to about S9 10 khz away and no AM sidebands.
With the Attenuation down to 9+40 close to the carrier the S reading drops to zero
that seems very acceptable roughly 60dB down
But the 10MHz from the Progrock clk0 out results huge wide AM hum side-bands
very irritating sound approximate 350Hz
No difference if the 10MHz clock0 out is directly on the REF -IN
or over the 74AC14 Schmitt trigger ports to shape it to TTL level.
The Progrock is connected to the QLG1 GPS receiver 1pps
Sometimes i hear a sudden jump in the output frequency it seems regulated
But it does not sound at all like a stable tone
It is constantly drifting slowly up and down like random
Touching the 27MHz xtal the 1296.185 frequency drifts a lot and
It was not regulated as if there is no lock.
ADF with a better 10MHz signal can give a clean output
The Progrock clock0 output does not produce a suitable 10MHz signal for the ADF.
Now i will have to try my Trimble GPSDO 10MHz signal
amplify its 30mV 10MHz to a TTL shape level.
I tried an INA10386 folowed with the 74AC14 pulse shaper
no good result the signal was 1-2V sin but changing all the time
Or the frequency seems to be doubled distorted and or the output went to zero
I hope that someone reading my struggle can give a hint!
sharing pictures with HTC phone is annoying slow and difficult
One drive does not work with this blog yet
Dropbox is full , Picasa once worked nice ..
mailing it to myself still seems the only working option
The HTC one camera once was good but now all is turning purple if not in full daylight.
Besides that opening the camera is a very slow process
Once it is active in seconds the HTC goes standby again to save power..
the security patern once it is activated no way to disable it.
it seems that Technic is more and more a struggle the older i get.