Re: [time-nuts] eBay GPS antenna test.

Learned tonight that J. P. Morgan got his start by buying 25 K defective rifles for %3.50 each and selling them to the Army for $25 each. You have no reason to trust a listing. Bill Hawkins -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob kb8tq

[time-nuts] Allan variance by sine-wave fitting

Hi Tom, to reply to your questions: (1) Yes, I was also surprized at how good the 5065a is. It's a stock unit that has apparently never been repaired or modified. I'm guessing it was turned off for a long time (the seller said it was stored in an unheated container in Alaska). Leo's lab is very

Re: [time-nuts] eBay GPS antenna test.

Hi > On Feb 13, 2018, at 12:06 PM, Clint Jay wrote: > > Agreed but stock numbers on boxes and packets are usually Arabic numerals > or a barcode. It's also possible the seller used a stock image which can be > copied and pasted into Google web search to track down the

Re: [time-nuts] eBay GPS antenna test.

Oh, and Google has a handy translation tool which does a reasonable job of translating Chinese text from a jpg image so that's also worth a try. On 13 Feb 2018 16:18, "Bob kb8tq" wrote: > Hi > > That can be a bit harder if the labels are all in Chinese. Maybe posting > pictures

Re: [time-nuts] eBay GPS antenna test.

Agreed but stock numbers on boxes and packets are usually Arabic numerals or a barcode. It's also possible the seller used a stock image which can be copied and pasted into Google web search to track down the maker or at least a distributor who has data. On 13 Feb 2018 16:18, "Bob kb8tq"

Re: [time-nuts] eBay GPS antenna test.

Hi That can be a bit harder if the labels are all in Chinese. Maybe posting pictures of the label? That way those (not I) who can read Chinese might spot something that allows a search to proceed. Bob > On Feb 13, 2018, at 11:06 AM, Clint Jay wrote: > > Sounds like a

Re: [time-nuts] eBay GPS antenna test.

Sounds like a drop shipping operation, they've found a supplier in China who is willing to send goods either in plain wrapping without any supplier name or the name of the agent who's selling it. It can be useful to Google anything that looks like a part number on the packaging, you'll often find

Re: [time-nuts] eBay GPS antenna test.

Hi China does a lot of things through a marketplace process. Lots of guys with piles of this or that. Any sort of product you get in (to them) small volume likely goes through this kind of arrangement. Buying OCXO’s and other timing gear is every bit as vulnerable to the “this one today,

[time-nuts] eBay GPS antenna test.

Bob wrote: Sitting here casually reading the data sheets for some of the modern Trimble survey receivers - they have gone to 7.2V (just below your 7.5V trigger point) as an antenna supply voltage. Who knows what that might imply relative to this antenna. After getting my refund, I sent the

Re: [time-nuts] eBay GPS antenna test results.

I would be extremely surprised if ebay does not rule in your favor. I've only had ONE case EVER opened against me, and it was CLEARLY not a valid case, but eBay still made me give the buyer his money back IN FULL to include shipping. eBay almost always picks the buyer over the seller. 73,