The front panell
hasonly one control: for tuning. The output level control is lockated on the
rear apron. Front panel switches are provided for power, AM, FM mono, FM Auto
(mono/stereo), FM muting, hi-blend (MPX noise filter), and Air Check.
The FM antenna input
is 75/300 ohms. A rod antenna and external connection are provided for Am. One
unswitched AC outlet is provided.
Performance
Full limiting was
attained with 4,8 µV. For 300 Ω and "Tee" antennas the monophonic
high fidelity sensitivity (60 dB quieting) measured 10 µV. The stereo high
fidelity sensitivity 955 dB quieting) was 70 µV.
At standard test
level the stereo frequency response measured +1/-1,8 dB from 20 to 15,000 Hz.
Distortion depended on the tuning adjustment beacause the "center channel
indicator" illuminates over a relatively large tuning range. Monophonic
distrtion ranged from 0,15% to
0,25% T.H.D. stereo distortion ranged
from 0,15% to 0,3% T.H.D. the Signal-to-Noise ratio measured 71 dB. Stereo
separation was +40 dB . Selectivity was good.
The maximum output
level corresponding to 100% modulation of the transmiter was 0,8 volts.
The Air Check output
level was 0,55 volts; 3,5 dB below the stereo and mono output level
corresponding to 100% modulation of the transmitter. For particularly clean
recordings we suggest the recorder be adjusted to indicate no higher than -4 dB
(below 0-VU/0-dB) when feeding the Air Check signal
Though stations can
be received 9with considerable noise) below 3,4 µV input, the LED FM center
channel indicator requires at least 3,4 µV before it turns on. The 5-step
signal strength indicator requires at least 5,5 µV before the first (lowest
value) step illuminates.
AM tuner performance
is generally average, with higher than average sensitivity to signals on the
high end of the dial.
Overall dimensions
measured: 16-15/16" (wide),
2-21/32" (high); 15-1/2" (deep).
Weight is 11 lbs.
Weight is 11 lbs.
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