User guide

11
8643A 8644B 8664A
8665A/B
Avionics Option 009 Option 009 provides the performance needed for testing VOR N/A
and ILS (localizer, glide slope and marker beacon) receivers.
Option 009 provides guaranteed specifications necessary to
make these demanding tests.
VOR (108 to 118 MHz) Bearing accuracy: 0.1°, frequency accuracy: Same as timebase,
AM accuracy (30%): ±5% of setting, AM distortion: 2%,
FM accuracy (480 Hz dev.): ±1.5 Hz
ILS: localizer/glide slope DDM resolution: Localizer: 0.0002 Glide slope: 0.0004
(108 to 112 MHz/329.3 to DDM accuracy: Localizer: ±0.0004 ±5% of DDM
335 MHz) Glide slope: ±0.0008 ±5% of DDM
Marker beacon (75 MHz): AM accuracy: ±5% of setting AM distortion: 2%
AM accuracy (95%): ±5% of setting + 1% AM distortion: 5%
2 GHz counter Option 011
Frequency range: 20 Hz to 2 GHz in three ranges N/A
Sensitivity: 25 mV
rms
(-19 dBm into 50 Ω)
Maximum input: 2.25 V
rms
(+20 dBm into 50 Ω)
Impedance: 50 Ω, 10 MHz to 2 GHz; 1 M Ω shunted by <65 pf, <10 MHz
Coupling: ac
Gate times: 0.1s to 1s in 0.1s steps
Measurement resolution: Measured frequency (Hz) x 10
-8
/gate time or 0.01 Hz if greater
Measurement uncertainty: (± timebase accuracy) plus (± measurement resolution)
General
Power requirements: ±10% of 100 V, 120 V, 220 V or 240 V; 48 to 440 Hz; 500 VA except 8643A/44B 400 VA.
Operating temperature: 0 to 55 °C
Leakage: Conducted and radiated interference meets MIL STD 461 B REO2 and FTZ 1046.
Leakage is measured into a resonant dipole antenna, one inch from the instrument’s surface
with output level <0 dBm (all inputs/outputs properly terminated, f
c
<1 GHz).
Leakage is typically <16 µV or <2 µV with Option 010, measured at the front panel.
The older two-turn loop method of measurement is typically <1 µV or <0. 1 µV for Option 010.
Acoustic noise: Typically <5.5 bels
Storage registers: Ten full function and 40 frequency/amplitude registers.
Calibration/diagnostics: Internal calibration and diagnostics functions are available to the user. Built-in test capability
locates circuit malfunctions to allow repair through module replacement.
Calibration interval: Recommended three years (MTBC).
Weight: 8643A; 23 kg (50 lbs). 8644B; 30 kg (67 lbs). 8664A/65A/B; 35 kg (78 lbs)
Dimensions: 177H x 426W x 601D mm (7 x 16.8 x 23.7 in.). Option 010 adds 35 mm (1.4 in.) to depth.
Specifications (continued)
TOP
426 mm
(
16.8 in.)
SIDE
Option 010 in creases depth by 35 mm (1.4 in.)
177 mm
(7.0 in.)
17 mm
(0.7 in.)
23 mm
(0.09 in.)
601 mm
23.7 in.)