Re: [Flexradio] XG-1 as an accurate frequency source

2005-11-08 Thread Tim Ellison
Title: XG-1 as an accurate frequency source



Got it.  Obrigado Eric.
 
-Tim --- Integrated Technical 
Services 

"You can't close the door when the 
walls cave in" --Robert Hunter 
 


From: Eric Wachsmann - FlexRadio 
[mailto:[EMAIL PROTECTED] Sent: Tuesday, November 08, 2005 3:04 
PMTo: Tim Ellison; 'Flex Radio'Subject: RE: [Flexradio] 
XG-1 as an accurate frequency source


Tim,
 
Sure.  The XG-1 should work fine.  A stronger signal would likely give you 
a better chance of getting a better null (you will run into the noise floor much 
sooner with the XG-1).  You can use 
another transceiver if signal level is an issue though.  The actual signal level and signal 
frequency used for the image null isn’t really important (unlike the Frequency 
and Level calibrations).  The main 
thing is that you are able to null the image of the 
signal.
 
 
Eric 
Wachsmann
FlexRadio 
Systems
 

-Original 
Message-From: 
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
On Behalf Of Tim 
EllisonSent: Tuesday, November 
08, 2005 1:50 PMTo: Flex 
RadioSubject: [Flexradio] XG-1 
as an accurate frequency source
 
I 
am eagerly awaiting my departure from Brazil so I can get home to play with my 
new SDR1K that has been sitting in the living room for almost three weeks 
now.
I 
have read the section about DDS clock adjustment and Image Null calibration 
procedures and I do not have a frequency generator.  Rather than trying to 
use WWV can I use my XG-1 and set the frequency to 7.040 MHz for testing 
purposes?  Is it accurate enough for these calibration 
tests?
73 
de PY0/W4TME 
-Tim --- Tim Ellison 
Integrated Technical 
Services Apex, NC 
USA 919.674.0044 Ext. 25 / 919.674.0045 
(FAX) 919.215.6375 - cell 
Skype: kg4rzy 



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Re: [Flexradio] XG-1 as an accurate frequency source

2005-11-08 Thread Eric Wachsmann - FlexRadio
Title: XG-1 as an accurate frequency source









Tim,

 

Sure. 
The XG-1 should work fine.  A
stronger signal would likely give you a better chance of getting a better null
(you will run into the noise floor much sooner with the XG-1).  You can use another transceiver if
signal level is an issue though. 
The actual signal level and signal frequency used for the image null isn’t
really important (unlike the Frequency and Level calibrations).  The main thing is that you are able to
null the image of the signal.

 

 

Eric Wachsmann

FlexRadio Systems

 



-Original Message-
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tim Ellison
Sent: Tuesday, November 08, 2005
1:50 PM
To: Flex Radio
Subject: [Flexradio] XG-1 as an
accurate frequency source

 

I
am eagerly awaiting my departure from Brazil so I can get home to play with my
new SDR1K that has been sitting in the living room for almost three weeks now.

I
have read the section about DDS clock adjustment and Image Null calibration
procedures and I do not have a frequency generator.  Rather than trying to
use WWV can I use my XG-1 and set the frequency to 7.040 MHz for testing
purposes?  Is it accurate enough for these calibration tests?

73
de PY0/W4TME 

-Tim

---

Tim Ellison 
Integrated Technical Services 
Apex,
NC USA 
919.674.0044
Ext. 25 / 919.674.0045 (FAX) 
919.215.6375
- cell 
Skype:
kg4rzy 










[Flexradio] XG-1 as an accurate frequency source

2005-11-08 Thread Tim Ellison
Title: XG-1 as an accurate frequency source






I am eagerly awaiting my departure from Brazil so I can get home to play with my new SDR1K that has been sitting in the living room for almost three weeks now.

I have read the section about DDS clock adjustment and Image Null calibration procedures and I do not have a frequency generator.  Rather than trying to use WWV can I use my XG-1 and set the frequency to 7.040 MHz for testing purposes?  Is it accurate enough for these calibration tests?

73 de PY0/W4TME


-Tim

---

Tim Ellison

Integrated Technical Services 

Apex, NC USA

919.674.0044 Ext. 25 / 919.674.0045 (FAX)

919.215.6375 - cell

Skype: kg4rzy





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