H-251~U
Revision as of 01:39, 20 September 2013 by RadioNerds (talk | contribs) (RadioNerds moved page H-251/U to H-251~U)
DETAIL SPECIFICATION SHEET HEADSET, ELECTRICAL H-251A/U 11 March 2004
Requirements
- Weight:
- 12 ounces maximum.
- Earphone:
- Two required (1000 Ohms each), in accordance with MIL-PRF-25670/5 Part or Identifying Number (PIN) M25670/5-01.
- Frequency response:
- Output shall be 104 to 110 dB between 100 to 3,500 Hz.
- Frequency response range:
- 100 to 3,500 Hz.
- Sensitivity:
- 107 ±3 dB related to .0002 dynes/cm2 at 1 kHz.
- Distortion:
- 5 percent maximum within the frequency response range.
- Impedance:
- 1,000 ±100 ohms at 1,000 Hz with 1.0 volt applied across the terminals.
- Endurance:
- ±3 dB maximum deviation from initial F/R after 8 hours with 500 milliwatts input power (22.4 volts) at 1,000 Hz.
