Tait Orca series - Page 20

B - 4 Radio specifications and circuit descriptions 11/98 IPN: 449-51000-01
Table B-2: Receiver performance
Sensitivity
12 dB SINAD
20 dB psophometric
-117 dBm (minimum)
-120 dBm (typical)
.25 µV (EIA)
-114 dBm (minimum)
.40 µV (EIA)
Ultimate signal to noise ratio
narrowband
wideband
40 dB
45 dB
Audio
Minimum load
impedance
Rated power
Distortion
Response
13
Ω
500 mW (1kHz, 60%
deviation into 16
Ω
<5% (1kHz, 60% deviation
at rated power into 16
Ω)
-6 dB/oct +1, -3 dB
(cf 1 kHz),
300-2550 Hz (narrowband)
300-3000 Hz (wideband)
Selectivity
to 225 MHz
UHF
70 dB (narrowband)
75 dB (mediumband)
75 dB (wideband)
66 dB (narrowband)
72 dB (mediumband)
72 dB (wideband)
Spurious responses 70 dB
Intermodulation 65 dB
70dB (EIA)
Blocking -13 dBm
Spurious emissions
to 1 GHz
1 to 4 GHz
(136-470 MHz)
1 to 12.75 GHz
(>470 MHz)
-57 dBm (conducted and
radiated)
-47 dBm (conducted and
radiated)
-47 dBm (conducted only)
Group delay variation ±50
µs (at detected audio
output)
bandwidth 300-3000 Hz
Hum and noise 40 dB
RSSI
range
slope
-120 to -40 dBm
28.65 mV/dB (typical)
Squelch
city
country
16 dB
SINAD
fixed
12 dB
SINAD
fixed