DEAR HARRY:

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP81B00878R001400110167-6
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 1
• Document Creation Date: December 9, 2016
• Document Release Date: May 24, 2000
• Sequence Number: 167
• Publication Date: May 15, 1956
• Content Type: LETTER

Approved For Release 2000/09/01--:.CIA-RDP81 B00878RO01400110167-6
P 15 may 1956
Y
MCC Doc, No* i5,ix5.i1i
Copy 1 of 2
Page 1 of l
25X1A
25X1A
Dear Harrya
25X1 D
has asked me to forward to you a correction to the
sensitivity data for System 1, CM'CC No, 166x5,1, which Burt sent
you on 26 April. Jim pointed WAAW"j, detectable signal
into the crystal, reported as was not con-
sistent 'with the miinim>m detectable signal into the antenna. Dr.
was rechecked all of the data ands in examining; the original
data, discovered that the signal level into the crystal Vas in fact
25X1 D recorded as which should convert to 25X1 D
power, The conversion was apparently incorrectly made initially.
No other discrepancies were found in the data. Will you please change
your copy of the data accordingly?
Sincerely,
25X1A
Original sent to
Copy sent to M
25X1A
25X1A
se 2000/09101 : CIA-RDP81 B00878R001400110167-6