Re: [Flexradio] 6 meters

2007-06-23 Thread Robert McGwier
It is not implemented yet in any of the software but when it becomes 
available for the FLex5000, it will work on the SDR-1000 with some 
caveats.  The caveats are that because the spurs on the SDR-1000 in some 
cases are larger than any seen on the Flex-5000, the suppression will 
not be to the same level.  The spur subtraction algorithm done by SM5BSZ 
is quite effective.

We will not know the full capability until we have an automated 
implementation.

Bob


Stan wrote:
 Is this track and subtract spur algorithm also available for the SDR-1000?
 
 Stan
 AH6JR
 
 On Friday 22 June 2007 13:08, Robert McGwier wrote:
 It is addressed. I have 100 watts output and good sensitivity on 6m.
 Any spurs that are there are very tiny.  On receive these are to be
 addressed in an early release of the software by using the track and
 subtract algorithm that is in use in Linrad.  On transmit, they are so
 far below the legal IMD products they are not an issue.

 Bob
 N4HY

 Phil LaMarche wrote:
 The receive on the SDR1000 is dead as a post with many birdies etc.  Was
 this addressed with the 5000?

 Phil


 Philip LaMarche
 LaMarche Enterprises, Inc.
 www.instantgourmetspices.com http://www.instantgourmetspices.com/
 www.W9DVM.com http://www.w9dvm.com/
 727-944-3226
 800-395-7795 pin 02
 FAX 727-937-8834
 NASFT # 30210
 W9DVM


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-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
If you're going to be crazy, you have to get paid for it or
else you're going to be locked up. Hunter S. Thompson

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Re: [Flexradio] Frequency problem with new bought SDR-1000

2007-06-23 Thread Ignacio Cembreros
[EMAIL PROTECTED] wrote:
 Hello to all.
 I'm new with the SDR and a think there is a problem.

 Equipment: SDR-100 + ATU + 100W PA + 2m XVTR

 When i check the receive frequency it changes from time to time. The 
 difference to a reference transceiver is up to -120kHz and it's not possible 
 to calibrate over this wide range. 

 Please have anyone an idea what's going wrong

 73 de OE8CCQ / Hans-Peter 

   
I had a similar problem.  I was traced to a bad 200 Mhz reference 
oscillator, it  was jumping in frequency at start up.

-- 
73 de Ignacio, EB4APL


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