Re: [time-nuts] Need recommendation for GPS antenna for Oncore GPS module

Hi Appears to be an Italian clone of the generic timing antenna. That is only a guess and it could easily be something very different …. Since it’s a part made for Erickson by somebody else, you would need their part number to properly track it down. If it’s a custom part, even that might

Re: [time-nuts] Need recommendation for GPS antenna for Oncore GPS module

I spotted this on Ebay, the price is very attractive and I saw this model mentioned previously in the mailing list archives: https://www.ebay.ca/itm/Ericsson-KRE-1012082-1-GPS-Antenna-26dBi-For-HUBER-SUHNER-Bracket-84097323/272646019498?hash=item3f7af819aa:g:US8AAOSwRUhZAIhz:rk:3:pf:0=mtr Anyone

Re: [time-nuts] Need recommendation for GPS antenna for Oncore GPS module

For what it is worth, I got a used HP/Symmetricom 58532a antenna off of eBay for about $50. It needed a minor repair (broken internal coax) but once that was done it has worked great for me. The other one I considered was the 58504a but they were more expensive on the used market and didn't

Re: [time-nuts] Need recommendation for GPS antenna for Oncore GPS module

Thanks Scott - I will look into getting one of those. And noted re. the roofline! On Sun, 4 Nov 2018 at 07:26, Scott McGrath wrote: > For timing use ideally it should be above the roofline by at least several > feet otherwise satellites close to the horizon will be not be visible. > > The

[time-nuts] Racal SA510 1MHz frequency standard

Hi all, just wondering whether there is any information available on the following OCXO: 1 Mc/s frequency standard Type No SA510 Racal Electronics Ltd Bracknell Berkshire Made in England All the information I have is on the second label: Pin connection 1 common -ve 2 varactor

Re: [time-nuts] Racal Dana 9478 frequency distribution system with option 04B high stability oven (5x10^-10/day aging rate).

It seems to be a very good price. There is a Racal Dana 9480 fully equipped with 40 outputs listed on eBay Germany for EUR 795. Nice to have but I don't need 40 outputs. vy 73 Heinz DH2FA, KM5VT Von meinem iPhone gesendet > Am 04.11.2018 um 15:05 schrieb Dr. David Kirkby > : > > On Sun, 4 Nov

Re: [time-nuts] Racal Dana 9478 frequency distribution system with option 04B high stability oven (5x10^-10/day aging rate).

On Sun, 4 Nov 2018, 11:51 David C. Partridge FWIW it is trivial to modify these video distribution amps for 50 ohm > output - you just need to change the output resistors form 75 ohm to 50 ohm > on the board after the op-amp. > > David > Three was a discussion about the particular video amplifier

Re: [time-nuts] Racal Dana 9478 frequency distribution system with option 04B high stability oven (5x10^-10/day aging rate).

Hi One would *guess* that the PLL bandwidth in the 9578 is wider than what you see in a typical GPSDO. As long as they don’t both line up at the same point, noise and phase peaking should not be a big deal. Depending on how clean your GPSDO is, the 9578 might clean things up a bit. For

Re: [time-nuts] Need recommendation for GPS antenna for Oncore GPS module

For timing use ideally it should be above the roofline by at least several feet otherwise satellites close to the horizon will be not be visible. The generally preferred antenna is the Agilent/Keysight/Symmetricom. 58504A antenna also any outdoor antenna made by Trimble or TrueTime as long as

Re: [time-nuts] Racal Dana 9478 frequency distribution system with option 04B high stability oven (5x10^-10/day aging rate).

Racal overall has a reputation for making very high quality instruments, Since the OCXO is an option,and the price is right on the DA, I’d probably buy it. Also thinking since its an option the OCXO can probably be switched out of circuit or removed entirely. Im guessing Racal thought