[hpsdr] Gilding the lily: thanks.

[Kevin Wheatley]

Hi Jeff

The eBay item looks pretty good, however if I were you I’d go for one  
of these:

http://www.dpieshop.com/trimble-resolutiontrade-gps-timing-receiver-p-253.html

together with this small active antenns:

http://www.dpieshop.com/trimble-miniature-5v-gps-antenna-smb-connector-rohs-5623700-replacement-p-292.html?osCsid=g7c30k8j8ghss3uv5u001uqd32

These two items will provide you with the main GPS hardware, the next  
thing you will want is a good 10Mhz Xtal oven, these turn up on eBay  
frequently, here’s one for example:

http://cgi.ebay.co.uk/10MHZ-XTAL-OVEN-OSCILLATOR-blb18_W0QQitemZ350202763265QQcmdZViewItemQQptZUK_ConsumerElectronics_SpecialistRadioEquipment_SM?hash=item5189b61801

A simple circuit to ‘steer’ the 10Mhz Xtal with the 1pps pulse from  
the gps is all you need. As discussed yesterday.

There are many other implementations to achieve this, however this  
solution works REALLY well and is not expensive. One last benefit  
you’ll be able to use this to calibrate your PowerSDR setup,  
guaranteeing absolute frequency accuracy :)

Good luck

Kevin - M0KHZ

On 27 Oct 2009, at 10:17, Jeff Cook wrote:

> 230392673042

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