[time-nuts] Oscillator frequency?

2012-10-03 Thread ken johnson
Hi, I have a tcxo that I recovered from a very old, suitcase-sized gps receiver some years ago. The oscillator is marked ERC Eros-750-MA110, with an output frequency of 5.119155MHz. I have tried to think of a use for for it but failed. I played with the numbers but could not find anything useful,

Re: [time-nuts] Oscillator frequency?

2012-10-03 Thread paul swed
Boy have to say no clue and not a very useful frequency. Would it make a nice bookend? Paper weight. Glue a watch to it and you have at least time. ;-) Regards Paul WB8TSL On Wed, Oct 3, 2012 at 9:07 AM, ken johnson bats...@gmail.com wrote: Hi, I have a tcxo that I recovered from a very old,

Re: [time-nuts] Oscillator frequency?

2012-10-03 Thread Azelio Boriani
Yes, it would be interesting to run such a GPS receiver: maybe there are numbers of points to follow the signal processing. On Wed, Oct 3, 2012 at 3:12 PM, paul swed paulsw...@gmail.com wrote: Boy have to say no clue and not a very useful frequency. Would it make a nice bookend? Paper weight.

Re: [time-nuts] Oscillator frequency?

2012-10-03 Thread Don Latham
Hi Ken: I have two of these, and had the same problem some years ago (see archives time-nuts). Nothing seemed to need this frequency. Fast forward to present. I'm using an ICOM 260A 2m all-mode xceiver for if in a 13 cm moonbounce system. The xtal frequency for the basic synthesizer in these units

Re: [time-nuts] Oscillator frequency?

2012-10-03 Thread Alan Melia
5.12MHz is often used as the reference for PLL channelised radio receivers. Alan G3NYK - Original Message - From: Don Latham d...@montana.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Wednesday, October 03, 2012 6:28 PM Subject: Re: [time-nuts

Re: [time-nuts] Oscillator frequency?

2012-10-03 Thread ken johnson
Thanks Don and Allen, it's been that long since I played with radio I had forgotten- 5.12 is half of 10.240 used to downconvert from 10.7 if to 455. I had a look through the circuits for my rigs, and my Eddystone 770r boat anchor uses 5.12MHz to align the various if's, and multiples of it to align