Heathkit HW-12 - Specifications; Receiver Section; Transmitter Section

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SPECIFICATIONS
RECEIVER SECTION
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Frequency Coverage......
Receiving
Mode...
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Sensitivity,
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Selectivity,
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Intermediate
Frequency
(IF),.....--.-e-e00-%
Image
Rejection,
.......-e
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IF
Rejection,,.....-0++-2e+8%
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Antenna
Input
Impedance,.......-.-.
Par
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Receiver
Audio
Response,......
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Receiver
Audio
Power
Output,........-2-
External Speaker Impedance,............
TRANSMITTER SECTION
Frequency Coverage, ..... 000 eee ee eeee
Transmitting Mode,,......c+e2eee8 See
Frequency Stability... 1... ce ce ee ce eee
RF Power Input... ..c eee eevee rr ereee
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Transmitter Audio Response...........++ ot
Microphone,..... at lane Pbarig eG Sag a wl ea syne
Unwanted Sideband Suppression, .... ...22.-
Carrier Suppression. .......ec00eeeeeee%
3.8 to 4 megacycles,
Lower sideband,
1 microvolt of input signal will provide at
least a 15 db signal plus noise to noise ratio,
2.7 kilocyeles at 6 db,
6 kilocycles at 50 db.
2.305 megacycles,
100 db,
50 db.
50 2, unbalanced,
400 to 3000 eps,
1 watt,
8 Q impedance,
3.8 to 4 megacycles,
Lower sideband,
Drift less than 200 cps per hour after warmup,
200 watts P.E.P.
50 2, unbalanced,
400 to 3100 cps.
High impedance crystal, ceramic, or dynamic
410 millivolts minimum outout).
\AV dddassay Vern as. Sens OU ye
45 db minimum
cps modulation,
below peak output with 1000
45 db minimum below peak output,