Re: [Elecraft] K4D questions - diversity, HDMI, Ref In

2020-12-02 Thread William Hein
Thanks again, Wayne. I see a K4HD in my future... 73 Bill AA7XT *Bill Hein* *Sound Business Strategies, LLC* *m 970-628-5120* *b...@soundbusiness.us * *The information contained in this transmission may contain privileged and confidential information, including patient information protected

Re: [Elecraft] K4D questions - diversity, HDMI, Ref In

2020-12-02 Thread Wayne Burdick
> On Dec 2, 2020, at 9:23 AM, William Hein wrote: > > Back to the phase locked receivers in the K4D. Does the K4HD retain this > feature? I am wondering if the Superhet circuitry would mess up the phase > coherence? The HDR (superhet) module is phase-locked at the IF. At the LO injection

Re: [Elecraft] K4D questions - diversity, HDMI, Ref In

2020-12-02 Thread William Hein
Wayne, Back to the phase locked receivers in the K4D. Does the K4HD retain this feature? I am wondering if the Superhet circuitry would mess up the phase coherence? If so, is there a way to bypass the K4HD Superhet circuits when not (for example) operating in a HF contest M2 or MM? 73 Bill AA7xT

Re: [Elecraft] K4D questions - diversity, HDMI, Ref In

2020-11-21 Thread Wayne Burdick
Then yes, this should work. I had assumed it was producing a 1-Hz square wave. Wayne elecraft.com > On Nov 21, 2020, at 3:20 PM, William Hein wrote: > >  > Hi, Wayne! > > I'm very happy about the phase sync between the two rxs, that will be a lot > of fun! > > FYI - The Bodnar GPS

Re: [Elecraft] K4D questions - diversity, HDMI, Ref In

2020-11-21 Thread William Hein
Hi, Wayne! I'm very happy about the phase sync between the two rxs, that will be a lot of fun! FYI - The Bodnar GPS unit outputs a programmable output including 10 MHz at various levels: Low-jitter GPS-locked precision frequency reference 450 Hz to 800 MHz output This device outputs two

Re: [Elecraft] K4D questions - diversity, HDMI, Ref In

2020-11-21 Thread Wayne Burdick
> On Nov 21, 2020, at 1:38 PM, William Hein wrote: > > The K4D looks like an amazing radio! I am interested in diversity rx, > primarily on 50 MHz. A few questions: > > (1) Are the two K4D receivers phase coherent (in sync)? Yes. > > (2) What is the resolution of the HDMI video output?

[Elecraft] K4D questions - diversity, HDMI, Ref In

2020-11-21 Thread William Hein
The K4D looks like an amazing radio! I am interested in diversity rx, primarily on 50 MHz. A few questions: (1) Are the two K4D receivers phase coherent (in sync)? (2) What is the resolution of the HDMI video output? (3) Will the Ref In work with something like the Bodnar GPS reference clock?