Difference: PowerMeasurements500 (1 vs. 2)

Revision 211 Jan 2006 - Main.MichaelGoger

 
META TOPICPARENT name="NmrStaffnotes"
Contents

Power Measurements for 500

Low Power

The low power measurements were done with 1GHz oscilloscope via 2m RG241 cable. The high power measurements were done with power meter via approx. 40dB attn. The data in the tables is corrected for attenuation.

Changed:
<
<		Low power measurements: As of 5/25/05.
>
>		Low power measurements: As of 1/11/06.
 
Nucleus SGU1 output SGU2 output SGU3 output SGU4 output Router 2 output Amplifier input
13C 950/990mV         1.09/1.13V
1H   930/1.04V       1.036/1.16mV
15N     1.01/1.04V   1.32/1.36V 1.57/1.62V
2H       984/1.02V 1.13/1.18V 1.1/1.15V

High Power

Changed:
<
<		High power measurements: As of 5/25/05
>
>		High power measurements: As of 1/11/06
 
Measurement description BLAX1 (13C), W BLAH (1H), W BLAX2 (15N), W BLAX3 (2H), W
Changed:
<
<
amplifier output @ -6dB no attenuation 308/339 67/87 440/460 380/410
amplifier output @ -6dB with attenuation 7dB, 78/87 10dB, 10/10.7 ???, 124/130 9dB, 68/75
probe input @ -6dB no attenuation 197/216 40/49 268/280/99/106
probe input @ -6dB with attenuation 47/53 5.7/7.4 75/80 19.6/21
>
>
amplifier output @ -6dB no attenuation 184/??? 67/87 426/??? 286/???
probe input @ -6dB no attenuation 112/??? 38/?? 256/??? 78/???

Note: all the attenuators were removed for Powercheck.

Deleted:
<
<		Note: since all the attenuators were removed for Powercheck, the lower part of table is no longer useful.
 
  • Set ALLOWTOPICVIEW =

-- MichaelGoger - 14 Dec 2005

Revision 114 Dec 2005 - Main.MichaelGoger

 
META TOPICPARENT name="NmrStaffnotes"
Contents

Power Measurements for 500

Low Power

The low power measurements were done with 1GHz oscilloscope via 2m RG241 cable. The high power measurements were done with power meter via approx. 40dB attn. The data in the tables is corrected for attenuation.

Low power measurements: As of 5/25/05.

Nucleus SGU1 output SGU2 output SGU3 output SGU4 output Router 2 output Amplifier input
13C 950/990mV         1.09/1.13V
1H   930/1.04V       1.036/1.16mV
15N     1.01/1.04V   1.32/1.36V 1.57/1.62V
2H       984/1.02V 1.13/1.18V 1.1/1.15V

High Power

High power measurements: As of 5/25/05

Measurement description BLAX1 (13C), W BLAH (1H), W BLAX2 (15N), W BLAX3 (2H), W
amplifier output @ -6dB no attenuation 308/339 67/87 440/460 380/410
amplifier output @ -6dB with attenuation 7dB, 78/87 10dB, 10/10.7 ???, 124/130 9dB, 68/75
probe input @ -6dB no attenuation 197/216 40/49 268/280/99/106
probe input @ -6dB with attenuation 47/53 5.7/7.4 75/80 19.6/21
Note: since all the attenuators were removed for Powercheck, the lower part of table is no longer useful.

  • Set ALLOWTOPICVIEW =

-- MichaelGoger - 14 Dec 2005

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