N65540-15-R-5178-P00001.doc

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0001

Amendment 0001

Part 1

There are no changes to the solicitation.

Part 2

This amendment provides a list of questions and comments received in response to the solicitation. The question and comments are provided for all potential offeros to review. Note that questions may have been edited for clarity and duplicative questions may have been combined or deleted. All available, necessary information and any necessary changes to the solicitation resulting from consideration of the below questions and comments have been incorporated into the solicitation in Part 1 of this Amendment. As a result of this amendment, the solicitation is considered to be clear.

Q1: Is the lower limit A-weighted?

A1: Yes, the lower limit in Requirement 5.4 is A-weighted.

Q2: Requirement 5.7 (Dynamic Range) states, "the 60 KHz Measurement Microphones and Preamplifiers thermal and electrical noise shall not exceed 35 dB re: 20 mPa at 10 Hz when measured with a one Hertz bandwidth?

Is this 35 dB unweighted?

A2: No, this 35 db is also A-weighted.

Q3: Should the 1 Hz bandwidth be interpreted as 10 Hz ±0.5 Hz (i.e. 9.5 - 10.5 Hz)?

A3: Yes, 10 Hz ±0.5 Hz (i.e. 9.5 - 10.5 Hz) is the correct interpretation.

(End of Summary of Changes)