[Flexradio] Frequency Standard for Calibration of SDR-1000

2006-08-01 Thread Jon Maguire
I know that a preferred tool to align the rig is one of the Elecraft units.
I'm anticipating a problem building the kit due to my arthritic hands. Are
there any other reasonably priced options, such as a signal generator or
other source of a stable frequency? Many thanks for any and all help.
 
73... Jon W1MNK 
 
Jon Maguire W1MNK
Brandon, FL USA
The four boxes of Democracy: Soap, Jury, Ballot and Cartridge
 
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Re: [Flexradio] Frequency Standard for Calibration of SDR-1000

2006-08-01 Thread Eric Wachsmann
WWV will work fine to calibrate the frequency.  More importantly, you need a
stable strong signal source for image calibration.  You can use another
rig's transmitter to do this though.


Eric Wachsmann
FlexRadio Systems

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
 radio.biz] On Behalf Of Jon Maguire
 Sent: Tuesday, August 01, 2006 2:28 PM
 To: FlexRadio@flex-radio.biz
 Subject: [Flexradio] Frequency Standard for Calibration of SDR-1000
 
 I know that a preferred tool to align the rig is one of the Elecraft
 units.
 I'm anticipating a problem building the kit due to my arthritic hands. Are
 there any other reasonably priced options, such as a signal generator or
 other source of a stable frequency? Many thanks for any and all help.
 
 73... Jon W1MNK
 
 Jon Maguire W1MNK
 Brandon, FL USA
 The four boxes of Democracy: Soap, Jury, Ballot and Cartridge
 
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Re: [Flexradio] Frequency Standard for Calibration of SDR-1000

2006-08-01 Thread Ray Andrews
Jon,

I fully understand about the arthritic hands.  I do not have that problem, but 
normally use a lighted magnifier to help out the tri-focals (Hi..Hi).

I find the Elecraft unit very useful for calibrating, not only for image 
rejection as Eric alluded to, but also for calibrating the S-Meter.  I use the 
newer XG2 signal generator which has outputs on 3 bands (80m, 40m,  20m) 
instead of just one.  I normally do the calibrating on 20m.  The XG1  XG2 are 
not necessarily stable frequency sources, but are very accurate signal level 
sources (1 uV  50 uV).  I generally tune to the highest frequency WWV signal I 
can hear reasonably well  use that for the frequency calibration.

If you would like to order one of the kits  send it to me, I would be happy to 
assemble it  ship it back to you.  The kit only took me about 30 minutes.  It 
could have been done more quickly, but I took my time to avoid mistakes.

73, Ray, K9DUR
  - Original Message - 
  From: Jon Maguiremailto:[EMAIL PROTECTED] 
  To: FlexRadio@flex-radio.bizmailto:FlexRadio@flex-radio.biz 
  Sent: Tuesday, August 01, 2006 3:27 PM
  Subject: [Flexradio] Frequency Standard for Calibration of SDR-1000


  I know that a preferred tool to align the rig is one of the Elecraft units.
  I'm anticipating a problem building the kit due to my arthritic hands. Are
  there any other reasonably priced options, such as a signal generator or
  other source of a stable frequency? Many thanks for any and all help.
   
  73... Jon W1MNK 
   
  Jon Maguire W1MNK
  Brandon, FL USA
  The four boxes of Democracy: Soap, Jury, Ballot and Cartridge
   
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