[hpsdr] Fwd: 1, 2, 3, 4, 5, 6, 7....

[Phil Crosno]

I operate mostly JT65HF mode and I use Trimble GPS Studio v1.09.0 software with my Thunderbolt. Providing both a 10 mHz reference and sync for the PC Clock.

N6AS, Phil


On Jul 27, 2012, at 4:36 AM, Werner Karn <werner.karn at googlemail.com> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> Simon,  you may want to try to run 2 Thunderbolts against each other and measure any phase drifts of the 10Mhz signals over one or two hours with an oszilloscope every 10 minutes or so...
> 
> 2012/7/27 Simon HB9DRV <simon at hb9drv.ch>
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Since yesterday afternoon position and altitude rock-solid, not even a mm
> difference.
> 
> Simon Brown, HB9DRV
> http://sdr-radio.com http://dit-dit-dit.com
> 
> You are standing at the end of a road before a small brick building. Around
> you is a forest.
> A small stream flows out of the building and down a gully. The sunspot count
> is 285.
> 
> 
> -----Original Message-----
> From: hpsdr-bounces at lists.openhpsdr.org
> [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Alberto I2PHD
> 
> Have you checked the altitude too ? My Thunderbolt tells me that from the
> morning to the evening of the same day
> my house moved up and down by almost 30 meters.... :-)   and the antenna is
> firmly attached to one of the chimneys....
> 
> I guess that is one of the reasons why GPS is not used on any aircraft, at
> least as an altitude measuring device...
> 
> --
> /*73 Alberto I2PHD*/
> 
> 
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