Re: [time-nuts] low power, but quiet, oscillators

On 2/6/17 6:24 PM, Alexander Pummer wrote: hi Magnus, how about the effect of that cheap 2,7K on the active device if it is bipolar? I wish it were easy to get 2.7k in space.. that's the temperature you're radiating to.. At 300K you can radiate a few hundred watts/square meter. When you

Re: [time-nuts] low power, but quiet, oscillators

jim...@earthlink.net said: > Then again couldn't you cool your oscillator.. that gets the T part of the > kT down lower > Cool that puppy down to <1K and get 25dB noise improvement, eh? What sort of temperatures can I easily get on a space craft if I point something away from the sun? --

Re: [time-nuts] low power, but quiet, oscillators

hi Magnus, how about the effect of that cheap 2,7K on the active device if it is bipolar? Greetings Alex On 2/6/2017 4:35 PM, Magnus Danielson wrote: Hi, On 02/07/2017 12:36 AM, jimlux wrote: On 2/6/17 2:37 PM, Bob Camp wrote: Hi One of the most basic reasons for putting out > +20 dbm is

Re: [time-nuts] low power, but quiet, oscillators

Hi > On Feb 6, 2017, at 7:35 PM, Magnus Danielson > wrote: > > Hi, > > On 02/07/2017 12:36 AM, jimlux wrote: >> On 2/6/17 2:37 PM, Bob Camp wrote: >>> Hi >>> >>> One of the most basic reasons for putting out > +20 dbm is that you >>> had a spec of -195 dbc / Hz

Re: [time-nuts] low power, but quiet, oscillators

HI > On Feb 6, 2017, at 6:36 PM, jimlux wrote: > > On 2/6/17 2:37 PM, Bob Camp wrote: >> Hi >> >> One of the most basic reasons for putting out > +20 dbm is that you >> had a spec of -195 dbc / Hz for the noise floor :) >> >> Some of these specs *are* a bit mutually

Re: [time-nuts] low power, but quiet, oscillators

Hi, On 02/07/2017 12:36 AM, jimlux wrote: On 2/6/17 2:37 PM, Bob Camp wrote: Hi One of the most basic reasons for putting out > +20 dbm is that you had a spec of -195 dbc / Hz for the noise floor :) Some of these specs *are* a bit mutually exclusive. Sure.. And to be honest, I'm not sure

Re: [time-nuts] low power, but quiet, oscillators

On 2/6/17 2:37 PM, Bob Camp wrote: Hi One of the most basic reasons for putting out > +20 dbm is that you had a spec of -195 dbc / Hz for the noise floor :) Some of these specs *are* a bit mutually exclusive. Sure.. And to be honest, I'm not sure that some of the folks coming up with paper

Re: [time-nuts] low power, but quiet, oscillators

Hi One of the most basic reasons for putting out > +20 dbm is that you had a spec of -195 dbc / Hz for the noise floor :) Some of these specs *are* a bit mutually exclusive. Bob > On Feb 6, 2017, at 3:19 PM, jimlux wrote: > > We're always looking for low DC power,

[time-nuts] low power, but quiet, oscillators

We're always looking for low DC power, but quiet (close in), oscillators for spaceflight applications, particularly as the spacecraft get smaller. I was intrigued by the paper Ulrich posted which actually called out a "mW RF out for mW DC in" as part of their FoM. Is there a list somewhere