[amsat-bb] Re: 10mtr and Galileo
kasal at feec.vutbr.cz
Mon Sep 11 03:26:52 PDT 2006
Yes, the Galileo spectrum null for both E6 orthogonal signals goes out
on 1263.4 MHz. For that reason the P3E L-band receiver local oscillator
is synthesized and receiver is possible to retune from 1268.800 to
1263.300 MHz (center of the analog passband) by command from the Earth.
On 1268.52 MHz we expected one of the power spectral density peaks of
I already offered participation on Eagle project in the field of L-band
P3E L-band Rx designer
>> Hi John,
>> Consider this.......
>> 4) I understand that the P3E folks have already worked out a solution by locating their L-Band operations in what will be a Galileo spectrum null. If that is the case, then the P3E folks are really using some good "science" to develop their satellite L-Band operations. Good for them!! Hey - I'm not in the thick of it - but it seems there are some serious gaps in communication between AMSAT-DL and AMSAT-NA even though we read about glimpses of real technical exchange. I hope we're not falling for the NIH (Not-Invented-Here) syndrome.
>> Regards...Bill - N6GHz
>> -----Original Message-----
>> From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org]On
>> Behalf Of John B. Stephensen
>> Sent: Sunday, September 10, 2006 7:47 PM
>> To: jules at g0nzo.co.uk; amsat-bb at amsat.org
>> Subject: [amsat-bb] Re: 10mtr and Galileo
>> What bothered people is the fact that we need high power L-band uplinks and the statement in the report that "there is the potential for most amateur 23 cm transmissions to interfere with Galileo unless the Galileo receivers are designed and built to withstand it".
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