[time-nuts] rf generator/attenuator

[Richard (Rick) Karlquist]

I already thought of this.  There are two missing
components:

1.  An ALC output amplifier to get a high, regulated output level.
Did you encounter anything like this on EBay?

2.  A shielded box for the ADF435X.

Rick

On 12/15/2018 11:43 AM, djl wrote:
> See:
> sv1afn at 40gmail.com
> modules to do what you wanted. With a nice oled and arduino, ADF4351=20
> 35-4400 MHz PLL external or internal 10 MHz reference and a controllable
> attenuator. Greek modules, not Chinese. Total cost seems to be about $80
> or so.
>    I also found modules like these on EBAY for around $25 each from the
> old country. hurry before the tariffs start! I think serviceable signal
> source, GPSDO locked, can be built from modules for under $100
> Considering my first Polarad microwave generator at about 60 pounds and
> able to heat the shack, it's a bargain. Time spent looking, about 15 
> minutes.
> Don
>