Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-19 Thread Didier Juges
Got the answer in the previous email :) On Mon, Feb 19, 2018 at 5:28 PM Didier Juges wrote: > What do you mean by “Adafruit” pinout? > > On Fri, Feb 16, 2018 at 11:50 AM Mark Sims wrote: > >> No, the Tbolt does not have a separate receiver board... plus

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-19 Thread Didier Juges
What do you mean by “Adafruit” pinout? On Fri, Feb 16, 2018 at 11:50 AM Mark Sims wrote: > No, the Tbolt does not have a separate receiver board... plus its' GPS is > rather special... the RF chain is locked to the OCXO so it does not produce > any sawtooth error. > > The

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-16 Thread John Green
Maek Sims wrote: I have several Motorola compatible GPS receivers... and not one of them does a perfect emulation of the Motorola devices. Some are quite close and not likely to cause problems... others are superiorly craptastic. Are there any readily available boards that will substitute for

[time-nuts] Furuno GT-8031 breakout board

2018-02-16 Thread Mark Sims
I have several Motorola compatible GPS receivers... and not one of them does a perfect emulation of the Motorola devices. Some are quite close and not likely to cause problems... others are superiorly craptastic. --- >Even more exciting, some of the “M12 like”

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-16 Thread Bob kb8tq
Hi Even more exciting, some of the “M12 like” devices are close, but not exact copies of the M12 command set. Your GPSDO may be fine with the differences on this device, but not so happy with the differences on some other device. Bob > On Feb 16, 2018, at 12:50 PM, Mark Sims

[time-nuts] Furuno GT-8031 breakout board

2018-02-16 Thread Mark Sims
No, the Tbolt does not have a separate receiver board... plus its' GPS is rather special... the RF chain is locked to the OCXO so it does not produce any sawtooth error. The Lucent KS firmware expects the GPS to support the older 6/8 channel messages. The newer 12 channel messages are

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-16 Thread David C. Partridge
To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Furuno GT-8031 breakout board Hi Bob, If you do a group buy of GT-8736 I'm game for 10. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-15 Thread Gregory Maxwell
Hi Bob, If you do a group buy of GT-8736 I'm game for 10. On Thu, Feb 15, 2018 at 6:55 PM, Bob Darlington wrote: > I bought some of the Furuno GT-8736 boards for $35 a pop, qty 1 (or 2 as > was the case). And was quoted at $26.91 a pop if I buy 100. If there's >

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-15 Thread n2lym
Bob, I would be interested in 4 Furuno GT-8736 boards if you order. Mike On Thu, Feb 15, 2018 at 01:55 PM, Bob Darlington wrote: I bought some of the Furuno GT-8736 boards for $35 a pop, qty 1 (or 2 as was the case). And was quoted at $26.91 a pop if I buy 100. If there's

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-15 Thread Azelio Boriani
I see that Buerklin has also complete GPSDOs from Furuno, the GF-8701 seems the entry level model for 291 eur. On Thu, Feb 15, 2018 at 7:55 PM, Bob Darlington wrote: > I bought some of the Furuno GT-8736 boards for $35 a pop, qty 1 (or 2 as > was the case). And was quoted

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-15 Thread Bob Darlington
I bought some of the Furuno GT-8736 boards for $35 a pop, qty 1 (or 2 as was the case). And was quoted at $26.91 a pop if I buy 100. If there's interest, I'm happy to coordinate a group buy at cost. Just paid off that credit card yesterday so why not? If there are more desirable boards from

Re: [time-nuts] Furuno GT-8031 breakout board

2018-02-15 Thread ew via time-nuts
Talking about Furuno has any one looked at the GT-87. I have known about it for years but found no way to buy some now DigiKey has them for $ 100, Buerklin in Germany for half that price. Saw tooth is +- 1.7 nsec we are not going to bother with correction. We are in the process to lay out a

[time-nuts] Furuno GT-8031 breakout board

2018-02-14 Thread Mark Sims
I just did a small adapter board that converts the 2x5 pin 2mm header on the Furuno GT-8031 to a 1x9 pin 0.1" connector with the pinouts of the Adafruit Ultimate GPS. There a couple of minor pin differences... the Adafruit FIX pin is not used and the Adafriuit 3.3VREG output pin is used as