Re: [time-nuts] TV Signals as a frequency reference

2018-04-03 Thread John Marvin
Yeah, that's pretty much the story around the country. I also have some monitoring software (monitoring PSIP, video and audio data, not specifically for monitoring STT packets) that I run on the Denver and Cheyenne stations 24 hours a day. Very few have set their GPS-UTC offset to 18 seconds. 

Re: [time-nuts] eLoran test 6 Feb for almost 2 months

2017-02-03 Thread John Marvin
I don't have a Loran receiver, and I live in Colorado. But I'd still like to check late at night to see if I can see a signal on my SDR receiver. I tried looking at old posts, and did some research online, but the best I can tell is that Loran C (and I assume eLoran) is transmitted at around

[time-nuts] Are there commercial clocks that decode the new WWVB PM signal available yet?

2014-11-29 Thread John Marvin
Last I heard, a chip (or chips) that decode the new PM signal added to the WWVB PWM signal 2 years ago was in development, but I'm not sure one has been released yet. If such a chip has been released, has it been incorporated into any consumer Atomic Clocks that are currently available?

Re: [time-nuts] 10 MHz OCXO recommendations

2014-11-11 Thread John Marvin
Connor-Winfield has a line of TCXO's with 0.1 ppm stability that can be bought from Digi-Key in single unit quantities for about $25. Search for M100F. They don't have a 14.4 Mhz, but they do have 10.0 Mhz, which you indicated could also work for you. Regards, John AC0ZG On 11/11/2014

Re: [time-nuts] Boeing 787 GPS reception trouble

2014-06-02 Thread John Marvin
Did they make any announcements regarding this? Most people aren't going to care about GPS, but many people are used to using their cell phones while waiting for the door to close and/or as soon as the wheels touch the ground when landing. If this doesn't work in a 787 I would think that they

Re: [time-nuts] New WWVB modulation format receivers (NOT)

2014-02-20 Thread John Marvin
I have an OpenHPSDR Hermes and it has no problem receiving WWVB; however, since I live in Fort Collins - Colorado, part of the success might just be the strong signal. I wonder if I could just stick a piece of wire into one of the channel inputs of a 192Khz sample rate audio interface

Re: [time-nuts] New WWVB modulation format receivers (NOT)

2014-02-19 Thread John Marvin
I guess my question is who has the right to grant exclusive rights for the ability to decode a very simple protocol? Was a patent actually granted for this? John On 2/19/2014 4:49 PM, Richard (Rick) Karlquist wrote: It may be true that WWVB is sending out a new format, but the receivers for

Re: [time-nuts] Removing goop was: =Re: 10811 Outer oven controller schematic

2013-08-01 Thread John Marvin
I've found that a lot of sticky things, including sticker glue, is oil soluble. So I just use a liberal amount of vegetable oil with a cloth to dissolve the stuff and get rid of the goop. Then you are left with an oily surface (you probably shouldn't use this method on cloth which might be

Re: [time-nuts] How dangerous if Rb lamp broken?

2013-07-09 Thread John Marvin
An Alkali metal may be simple, but they are surely hazardous. Rb can be extremely hazardous, as are the other Alkali metals, i.e. Lithium, Sodium, Potassium and Cesium (and Francium, but that is one of the rarest elements, due to its highly unstable nature, with its most stable isotope having

Re: [time-nuts] LORAN

2013-07-04 Thread John Marvin
Which LORAN system are we talking about? I thought the US stopped LORAN-C back in 2010 and eLORAN plans were cancelled. Are you talking about the European eLORAN system? John On 7/4/2013 8:59 AM, Peter Gottlieb wrote: A few weeks ago I listened and there was something VERY weak (under 1 uV)

Re: [time-nuts] [OT} audiophile outlets.....

2013-06-20 Thread John Marvin
Actually, Audiophools don't care about 44.1Khz anymore. They care about 96, 192 and even 384 Khz sampling rates. John On 6/19/2013 10:09 PM, Chris Albertson wrote: On Wed, Jun 19, 2013 at 5:54 PM, Tom Knox act...@hotmail.com wrote: I wonder what is the best way to obtain 44.1KHz from a