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Rafael Diniz rafael at riseup.netThanks Alex! I ended up buying this one: https://www.ebay.com/itm/182974939864 Lets see. ; ) On 01/15/2018 06:07 PM, Alexander Huemer wrote: > Hi! > > On Mon, Jan 15, 2018 at 01:14:07PM -0200, Rafael Diniz wrote: >> Do you know if this GPSDO would work: >> https://www.ebay.com/itm/GPS-Receiver-GPSDO-10MHz-1PPS-GPS-Disciplined-Clock-SINE-WAVE-GPS-RECEIVER/262981677836?hash=item3d3aedf30c:g:8HUAAOSwxu5ZD~MH >> >> Feature: >> >> POWER:DC12V 1.5A >> GPS ANT POWER:DC3.3V >> 1PPS OUTPUT:Square WAVE,3.3Vpp >> 10M OUTPUT :SINE WAVE,1Vrms (13dBm+-2dB) >> RS232 OUTPUT:GPS NMEA SIGNAL >> SIZE:W*H*D=107*55*120mm >> ACCESSORY:AC110-220-DC12V ADAPTER,GPS ANT. > > Well, I don't have experience with this particular device. > Observations: > * Power level of 10MHz output is right, according to [1]. > * Waveform is the desired square. > * There is no specification of accuracy. Assumption is that it's good > enough, but I think it's worth noting that there is no statement. > * The 1PPS output is a nice to have, though voltage is too low to be > inside spec of the USRP2. I don't know how likely it is to be working > anyways. > > Have you considered using an OCXO for simplicity reasons? > There are reasonably priced boards on eBay that have an OCXO and just > the necessary components around to run it, like [2,3]. Those should be > sufficient regarding accuracy, though output waveform is sine, which is > acceptable but not ideal. > I have just invested 2 minutes in research. I am sure even better > suitable options can be found easily. > > Kind regards, > -Alex > > [1] https://files.ettus.com/manual/page_usrp2.html > [2] https://www.ebay.com/itm/182994166409 > [3] https://www.ebay.com/itm/252755180989 > -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: OpenPGP digital signature URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20180116/09068dbe/attachment.bin>