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List: usrp-users@lists.ettus.com
From: Samuel Prager
RFNoC - UBX Frequency Tuning Issues (Order Dependent)
Wed, Feb 22, 2017 8:26 PM
Sequence A:
100 MHz (default) —> 1000 MHz —> 500 MHz
Sequence B:
100 MHz (default) —> 500 MHz —> 1000 MHz
We are transmitting identical waveforms (non continuously, with prf of ~100 ms in external loopback with 30 dB attenuation) and estimate the PSD of the rx signal and apply a matched filter.
List: usrp-users@lists.ettus.com
From: Bakshi, Arjun
TX power levels. Long term exposure.
Mon, Nov 6, 2017 7:20 PM
It's also difficult to get an estimate of absolute power rxed/txed from the USRPs. So I'd like to hear from anyone who knows about this stuff.
I'm using SBX (max power 100mW), and I'm thinking of using either the 500-700MHz or the 1.2-1.3 GHz band. I'll be transmitting for 5ms every second for a few hours. The room is about 6m x 15m.
List: tacomaart@list.cityoftacoma.org
From: Jennifer Schaal
Hilltop Street Fair Early Bird Discount Ends March 15
Mon, Jan 29, 2018 4:53 PM
We hope you'll join us for another
great event--last year's attendance was an estimated 20,000.
Reserve your space before *March 15th* and take advantage of the Early Bird
discount. Vendor applications are attached.
Jo Davies, Vendor Coordinator
Hilltop Street Fair 2018
Preview attachment hsf 2018 artist%2Fretail.pdf
List: time-nuts@lists.febo.com
From: Magnus Danielson
Re: [time-nuts] My DIY frequency counter and a request for help
Thu, Mar 4, 2010 8:52 AM
Just to follow up on the Pendulum presentation, here is a paper from
Staffan Johansson detailing both frequency and ADEV calculations, and as
I understand the paper they do the ADEV properly and not based on the
linear regression estimated frequency values.
List: time-nuts@lists.febo.com
From: jimlux
Re: [time-nuts] ADEV
Sat, Nov 13, 2010 3:53 PM
The paper by Sydnor is quite handy, because it's basically the same way
we do things still (well, we don't punch the Doppler estimate on paper
tape, we've moved a tiny bit forward. And, most, but not all, of our
equipment is calibrated in Hz as opposed to cps)..
>
List: time-nuts@lists.febo.com
From: Poul-Henning Kamp
Re: [time-nuts] Timing over low bandwidth channels
Thu, Dec 9, 2010 10:55 AM
Basically with timing you only send one bit: "now"
The most precise way to send that bit is to use a very long PRNG
spreading code, and identify the correlator output peak using
statistical estimation on the slopes up to the peak.
List: time-nuts@lists.febo.com
From: Jim Hickstein
Re: [time-nuts] Spectracom 8170 -> SWCC clock
Sun, Jan 22, 2012 9:12 PM
> In extremis, measure or estimate the coil wire size and calculate the
> heat loss for the actuated time with the voltage you want to use.
> Don
List: time-nuts@lists.febo.com
From: Paul DeStefano
Re: [time-nuts] Considerations When Using The SR620
Thu, Dec 6, 2012 6:24 PM
If pressed, I would estimate less than 100ps.
The error of this measurement contributes to the error in our
final measurement which has many components. I haven't worked out an
error budget for each contributor. Our goal is a final error of less than
10ns.
List: time-nuts@lists.febo.com
From: Marek Peca
1. Clock ensembling; 2. Delay controller-synthesizer -- preprints of this year's UFFC IFCS-EFTF contributions
Fri, Jul 26, 2013 10:56 AM
Clock Composition by Wiener Filtering Illustrated on Two Atomic Clocks
- about clock ensembling using estimator
- advantages over PLL&FLL (+ case study)
- much simpler in LTI case over currently used Kalman filters
2.
List: time-nuts@lists.febo.com
From: Alan Kamrowski II
Re: [time-nuts] LPRO 101 - does anyone know how much the C Field pot changes and what direction?
Fri, Aug 16, 2013 2:00 PM
My Rb is about 0.000731284 fast according to my estimate.
>To really fine tune it, you need to used the C-field adjustment pin.
>This circuit is simple. A Linear Technology LT1236 precision 5V regulator
and a
>10 K linear 20+ turn pot. You can get a sample of the chip free from
Linear Technology.