[time-nuts] Tele Quarz Group oscillator

Hello, I have a Tele Quarz Group TQOC26-01 oscillator (picture attached) and would like to use it Unfortunately I could not find any information on it, looks like Tele Quarz Group doesn't exist anymore. Does anyone happen to have some information on this part : application note / datasheet /

Re: [time-nuts] Choke Ring Design for L1

Hi there, just to prevent from making mistakes ... You can have two different accessories for GNSS antennas: 1) a ground plane it prevents the antenna from receiving signals from beneath the antenna (from the ground, roof or whatever is beneath) ... so this could be your pie

Re: [time-nuts] Jamming GPS

Hi, for nonmilitary GNSS receiver, you do not need a wide band signal for jamming. You only need a carrier with a signal power, sufficient to screw down the AGC in the GNSS receiver's front end. ... and as a purpose for a military jamming exercise ... think of the successfull detection of a

Re: [time-nuts] [timenuts] GPS L1 chokering antenna

Hi there, something about the power supply. If it's an older Leica choke ring antenna, it uses an AeroAntenna antenna element. Perhaps there is still a label on the lower side of the choke ring. L1L2 antennas had the part number AT2775-..., L1 had been AT575-... The power supply is coded there.

[time-nuts] Re: GPS L1 chokering antenna

Hi Mark, no need to use your Z12 ... supply the antenna with +5V-DC and put an amplifier between antenna and a spectrum analyzer. You will see the noise of the L1 and (hopefully ;-) ) L2 amplifier in the antenna. Btw. L1 chokering ants are not unusual ... except in surveying. A L1 surveying

Re: [time-nuts] Choke-Ring Antennas for GPSDO use ?

Mike, the choke rings are simply made of concentrical rings with a quarter wave depth. They are widely used to suppress the sidelobes of an antenna and to get a symmetrical antenna pattern. The choke rings produce an area of high impedance around your antenna. You can find choke rings e.g. on

[time-nuts] Re: Allstar GPS engines

); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Dave, i couldn't find the product number in my old price lists. If the boards had been used in a base station installation, the number should be 220-600944-1xx. Are there other numbers on the board or can you get the

Re: [time-nuts] Allstar GPS engines

); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Bjoern, i have to check this with NovAtel, whether the old price lists can be published or not. I will inform you about the results. ... a GPSDO project with old CMC receivers ? i must have overlooked this ... do you have

Re: [time-nuts] Motorola Chips

Hi Magnus, yes, the internet shoeem's to suffer from Altzheimer's desease ;-) I could send you datasheets of RFIC1501,RFIC1502 and SCS38140. The file size as ZIP-file would be about 680kByte. @admin: can i post it ? Regards Martin ___ time-nuts

Re: [time-nuts] Can anyone ID this Ashtech GPS receiver

Hi Dave, it look's like an Astech G8 board. This board used the Philips SAA1575 GPS chip set. Designed for low-cost navigation solutions. regards Martin ___ time-nuts mailing list time-nuts@febo.com

Re: [time-nuts] Failure mode in GPS receivers

oh yes . 1) Waterlevel in GPS antenna's hermetic too high ... the ice inside the hermetic was melting down ( Hi Magnus ;-) ) 2) Coaxial cable damaged, due to nice little pecking birds :-( Regards, Martin ___ time-nuts mailing list