Re: [time-nuts] Help with BG7TBL 2015-07-08 GPSDO>Fixed!

2020-02-09 Thread Patrick Murphy
Great news! And even better sleuthing. I'm just curious - what piece of kit is the MAX3232 installed in? I'm trying to figure out is it is the DCE or the DTE end. Thanks! -Pat (KG5YPQ) On Sun, Feb 9, 2020 at 10:15 AM Gary Woods wrote: > Once I found the datasheet for the RS-232 interface, I

Re: [time-nuts] Help with BG7TBL 2015-07-08 GPSDO

2020-02-02 Thread Patrick Murphy
Well, that was the easiest answer. The issue can also be the interface settings - baud rate, stop bits, and parity need to match on both sides of the connection. I suggest you try using something like "putty" to monitor the port on your PC side. This will allow you to see if there is any data

Re: [time-nuts] Help with BG7TBL 2015-07-08 GPSDO

2020-02-01 Thread Patrick Murphy
Hmmm. I do not have any of that equipment, but I do know the RS232 interface pretty well. It may be that you need to cross over the connections with RX and TX. Do you have a null modem type device handy? This looks like a male-to-female adapter designed to be in the RS232 connection between your

Re: [time-nuts] low phase noise, noise floor and noise figure amplifier at 400MHz

2020-01-18 Thread Patrick Murphy
Magnus, Well you kindly explain what you mean by your comment "I've seen both instrument makers and oscillator makes handwaving to protect the values which so far is understood to be non-physical." , especially the non-physical part. While I can keep up with a lot of the discussions here, I will

Re: [time-nuts] measuring currents on USB powered devices

2019-12-21 Thread Patrick Murphy
The unit I linked to below does support isolated power to the test unit for those lower power, higher precision measurements. Not all of them do. True that if you are looking for something to calibrate, these are not for you. R/ -Pat On Wed, Dec 4, 2019, 6:19 PM Hal Murray wrote: > >

Re: [time-nuts] measuring currents on USB powered devices

2019-12-21 Thread Patrick Murphy
Here is my personal favorite. This is a USB-C compliant unit. There are also USB 1 and USB 2 devices available. I find their quality to be quite acceptable. These are new to me so I cannot speak as to their durability. https://smile.amazon.com/gp/product/B07T2GKDCG Merry Christmas to all! On

Re: [time-nuts] Flash!!! FA2 works on Arduino Tablets !!!

2019-10-21 Thread Patrick Murphy
I have no way to test this, but I wonder if one can charge the tablet wirelessly while the USB port is in use. Assuming the tablet is capable of wireless charging in the first place. -Pat (KG5YPQ) On Sun, Oct 20, 2019 at 11:01 PM Didier Juges wrote: > The interface from the FA2 is USB, so

Re: [time-nuts] Authoritative Source for Lady Heather

2019-10-20 Thread Patrick Murphy
Hello Mark. Thanks for that explanation. I GUESS my gobble-fu was working better than I have credit. I was not sure how closely connected your web site was to what is posted by texaspyro on EEBlog. I will continue to use your V6.14 source code, and eagerly await V6.30. Once I can fork from

[time-nuts] Authoritative Source for Lady Heather

2019-10-17 Thread Patrick Murphy
My google-fu is weak right now. Who is the authoritative source for the latest version of Lady Heather? I am finding a lot of stuff that is a fork of the original, but I do not feel inclined to debug someone else's work. Heck - I don't want to debug MY work. :-) A link to the official source

Re: [time-nuts] Distribution amplifier for 10MHz and 1 pps

2019-03-19 Thread Patrick Murphy
Good morning, Anders. You have a mangled URL on your below referenced wiki page. The CASPER site link should be " https://casper.berkeley.edu/wiki/16_way_1PPS_driver; (drop the 's' in 'wikis'). Thanks for the marvelous collection! -Pat >Date: Sun, 17 Mar 2019 20:00:57 +0200 >From: Anders

[time-nuts] ES100 Back in Stock

2018-12-31 Thread Patrick Murphy
Just a heads-up. Universal Solder has two different ES100 devices back in stock. https://universal-solder.ca/product/everset-es100-cob-wwvb-60khz-bpsk-receiver-kit-with-2-antennas/ https://universal-solder.ca/product/everset-es100-adk-v2-wwvb-bpsk-phase-modulation-receiver/ -Pat (KG5YPQ)

[time-nuts] Need Advice on Trimble 22020 Antenna

2018-07-13 Thread Patrick Murphy
recently picked up a Trimble 22020 L1/L2 antenna for a pretty good price. It is in near perfect physical condition including the ground plane. I Googled around a bit for technical specifications and so far have found nothing very useful. Is there a source out there I am just missing? I did