Re: [time-nuts] Lost GPS lock or 1PPS recently?

2018-09-09 Thread Didier Juges
Not a time-nut issue but most banks that batch process will process the debits before the credit so that they get to charge you no matter what. They probably don't all do it but some definitely do. I had one bank even charge me multiple overdraft fees because they processed the largest checks

Re: [time-nuts] WWVB Chronverter update progress

2018-09-09 Thread paul swed
Achim Indeed anything could be used if you want to modify the clocks. I don't. They do what they do very well and consume 0 power. Can be placed in any location in the house or garage and even the basement. Interestingly without the real wwvb I can orient them any way I want also. The last thing I

[time-nuts] Nulsom RS-232 for TTL conversions

2018-09-09 Thread Gregory Beat via time-nuts
An Easy Approach for TTL (3.3V or 5V) to RS-232 conversion, that fits INSIDE the DE-9 back shell. These Korean modules are popular with Arduino and AVR/ATmega users. Nulsom, Inc. (Korea) http://www.nulsom.com/ Available for purchase on Amazon, $9.95 USD Yes, I bought a couple, earlier this

Re: [time-nuts] WWVB Chronverter update progress

2018-09-09 Thread Achim Gratz
paul swed writes: > Hello to the group its time for a wwvb chronverter update. I used the loop > antenna as Alex suggested. I added caps to resonate it sort of. I am still a bit puzzled by this desire to feed the time in via LF waves. Maybe WWVB clocks are more different from the MSF / DCF77

Re: [time-nuts] Can eloran Backup GPS?

2018-09-09 Thread Bob Martin
Courtesy a quick internet search: http://insidegnss.com/south-korea-developing-an-eloran-network-to-protect-ships-from-cyber-attacks/ https://rntfnd.org/wp-content/uploads/Korea-Jamming-Chart.jpg There was lots of stuff like the above. It apparently just won't stay dead. It seems one

Re: [time-nuts] Can eloran Backup GPS?

2018-09-09 Thread Bob kb8tq
Hi Back in the day, Loran was monitored and corrections were published. If you really were “time nutty” about using Loran, you got the correction tables (in the mail) and post processed them into your measurements. Bob > On Sep 9, 2018, at 11:34 AM, paul swed wrote: > > The correction

Re: [time-nuts] WWVB Chronverter update progress

2018-09-09 Thread paul swed
Hello to the group its time for a wwvb chronverter update. I used the loop antenna as Alex suggested. I added caps to resonate it sort of. This added a nice 6DB increase in output power as measured by a reference antenna to a HP 3586 slvm. I did try a transformer going from 50 ohm to .75 ohm of

Re: [time-nuts] Can eloran Backup GPS?

2018-09-09 Thread paul swed
The correction stream is transmitted in the eLORAN signal and does require some form of reference site to transmitter connection. Just like GPS and lightspeed use RF to send corrections to the satellites. Loran C also did the same adjustments from a control site. But I am hearing nothing about

Re: [time-nuts] Can eloran Backup GPS?

2018-09-09 Thread Poul-Henning Kamp
In message <3d2ae1be-927a-574a-e7f0-c7d2d289d...@earthlink.net>, jimlux writes: >On 9/8/18 4:52 PM, paul swed wrote: >I suppose you could have a low rate network (i.e. not "the internet") >and for the most part, the propagation corrections (whether using 60kHz, >Loran, Omega, or GPS)

Re: [time-nuts] Can eloran Backup GPS?

2018-09-09 Thread Bob kb8tq
Hi > On Sep 9, 2018, at 10:43 AM, jimlux wrote: > > On 9/8/18 4:52 PM, paul swed wrote: >> Hello to the group I won't quote figures here but did indeed help UrsaNav >> do testing. Hey 90 days with a HP 5071 that was a sweet deal at the cost of >> some power. >> They do send corrective data in

Re: [time-nuts] Can eloran Backup GPS?

2018-09-09 Thread jimlux
On 9/8/18 4:52 PM, paul swed wrote: Hello to the group I won't quote figures here but did indeed help UrsaNav do testing. Hey 90 days with a HP 5071 that was a sweet deal at the cost of some power. They do send corrective data in the signal from reference sites and that helps propagation

Re: [time-nuts] Lost GPS lock or 1PPS recently?

2018-09-09 Thread Scott McGrath
My company paid for my shield room the real trick was getting the door in which weighed 600-800 pounds. As to the old generator I restore old machinery as another hobby for the times I want to disengage brain. But photoetched brass id plates show so much more thought than thermal printed