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List: time-nuts@lists.febo.com
From: Bob kb8tq
Re: [time-nuts] 10 mhz accuracy for a satellite system
Tue, Feb 5, 2019 7:11 PM
.
>
> 73, Dick, W1KSZ
>
> Sent from Outlook
> ________________________________
> From: time-nuts on behalf of Bob kb8tq
> Sent: Tuesday, February 5, 2019 8:32 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] 10 mhz accuracy for a satellite system
List: time-nuts@lists.febo.com
From: Mike Monett
Re: [time-nuts] HP 5071A Electron Multiplier of Cesium Beam Tube
Fri, Sep 11, 2009 10:59 AM
For example, the cutoff frequency is
fc = c / 2w, where
fc = cutoff in GHz
c = speed of light, 30 cm/ns
w = width in cm
So a box 4 inches wide would be
fc = 30 / (2 * 10)
= 30 / 20
= 1.5 GHz
Here's a calculator that gives the attenuation at any desired
frequency below cutoff:
http://www.k5rmg.org/calc/waveguide.html
List: tacomaart@list.cityoftacoma.org
From: Strom-Avila, Naomi
Community Arts Projects funding workshop on 10/8
Mon, Oct 6, 2025 5:27 PM
.
________________________________
More Info: Visit www.tacoma.gov/artsopps
List: tacelist@list.cityoftacoma.org
From: Strom-Avila, Naomi
Community Arts Projects funding workshop on 10/8
Mon, Oct 6, 2025 5:27 PM
.
________________________________
More Info: Visit www.tacoma.gov/artsopps
List: ctbirds@lists.ctbirding.org
From: Stephen Spector
Vesper Sparrow, Silver Sands SP, 10/23/16
Sun, Oct 23, 2016 8:50 PM
>From Steve Spector, Silver Sands SP, Milford, 10/23/16, Vesper Sparrow with small flock of Savannah and Field Sparrows beginning of sparrow lanes west of main parking lot, 3-4:00 PM. charsjs@sbcglobal.net
List: time-nuts@lists.febo.com
From: Tom Holmes
Re: [time-nuts] OT - DC-10 gyros
Wed, Mar 27, 2013 10:35 PM
Of
course, I had
> to buy it.
> >
> > What I got was the yaw-rate gyro package from a Northwest Airlines DC-10
that
> was stripped for parts around 2000.
List: usrp-users@lists.ettus.com
From: d.des
Re: [USRP-users] Signed driver needed for Windows 10 -- success self signing
Wed, Feb 10, 2016 2:47 PM
I downloaded the WDK and SDK and followed the instructions in
https://msdn.microsoft.com/en-us/library/windows/hardware/ff546236.aspx
and am now able to use the B210 in Windows 10. It's been a learning
experience.
List: time-nuts@lists.febo.com
From: J. Forster
Re: [time-nuts] What's the easiest way to divide by 10 for Thunderbolt reference output?
Tue, Jul 24, 2012 2:57 PM
Inputting my
>> Thunderbolt at 10 MHz works, but shifts the decimal point over. I am
>> not sure if this has any other detrimental effects as to accuracy or
>> other? What's the easiest way to have a 1 MHz reference from the
>> Thunderbolt for this timer / counter please, yet retaining 10 Mhz for
>> my other devices that want a 10MHz reference signal?
List: time-nuts@lists.febo.com
From: Chris Hoffman, KG6O
Re: [time-nuts] What's the easiest way to divide by 10 for Thunderbolt reference output?
Tue, Jul 24, 2012 5:05 PM
Inputting my
>> Thunderbolt at 10 MHz works, but shifts the decimal point over. I am
>> not sure if this has any other detrimental effects as to accuracy or
>> other? What's the easiest way to have a 1 MHz reference from the
>> Thunderbolt for this timer / counter please, yet retaining 10 Mhz for
>> my other devices that want a 10MHz reference signal?
List: birdalert@ontbirds.ca
From: Gregory Zbitnew
[Ontbirds] Ottawa/ Gatineau: recent sightings to January 10, 2019
Thu, Jan 10, 2019 11:21 PM
Quebec
Compiler: Gregory Zbitnew at sightings@ofnc.ca
January 10, 2019
There were two highlights this week. A BLACK-BACKED WOODPECKER was found at
the Mer Bleue on the 4th, and 5 GRAY PARTRIDGE near Fernbank and Robert
Grant on the 3rd. Unfortunately, neither species has been relocated.