My bench is only good to 1GHz, unless I can figure out a way to put these scopes in series!
Vince.
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On 10/24/2017 06:48 PM, Gordon Gibby wrote:
Well, I sure am grateful for people with great test equipment!!!!
Sent from my iPhone
On Oct 24, 2017, at 6:46 PM, Vince Vielhaber <vev@...> wrote:
You either don't recall or you didn't read it. Yesterday afternoon I re-measured using a Tek 11402 scope and corrected my previous comment.
Vince.
On 10/24/2017 04:42 PM, Jerry Gaffke via Groups.Io wrote:
As I recall, you showed some alarmingly low signal levels as the
frequency went up.
If the si5351 can only give 8ma at dc, your notes suggest it gets
awfully small at 45mhz+SignalFreq
into the first mixer on the ubitx.
Though Gordon's right, there is some conduction through a schottky diode
even at 200mv or less.
Perhaps somehow the ubitx works well enough, but could do better if the
diode ring mixers were driven harder.
Jerry
On Tue, Oct 24, 2017 at 01:03 pm, Vince Vielhaber wrote:
I posted the RMS values of all four output modes yesterday. Do you
also want the P-P values?
--
Michigan VHF Corp.
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Michigan VHF Corp.
