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Last modified 2023-06-12

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Heathkit HW-104

A picture of Heathkit HW-104

SPECIFICATIONS

GENERAL
Type:Amateur HF transceiver
Frequency range: 10-80 m + WWV in nine bands:
3.5-4.0 MHz (80 m)
7.0-7.5 MHz (40 m)
14.0-14.5 MHz (20 m)
21.0-21.5 MHz (15 m)
28.0-28.5 MHz (10 m)
28.5-29.0 MHz (10 m)
29.0-29.5 MHz (10 m, with optional HWA-104-1)
29.0-29.7 MHz (10 m, with optional HWA-104-1)

15.0-15.3 MHz (WWV, RX only)
Tuning steps:Analog / continuous
Frequency stability:Less than 100 Hz per hour after 30 minute warmup
Mode:SSB / CW
Channels / memory management:None
Repeater shift / offset:No
Power supply:12-16 VDC
Current drain / power consumption:RX: Max 2 A
TX: 3-20 A
Antenna impedance / connector:50 ohm / ?
Dimensions (W*H*D):367*146*352 mm (14.45*5.75*13.86")
Weight:7 Kg (15.43 lb)
Other features:VOX. 25/100 KHz calibrator.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 8.65 MHz
2nd IF: 3.395 MHz
Sensitivity:<1 uV (10 dB S+N/N)
Selectivity: SSB: 2.1 KHz (-6 dB), 7 KHz (-60 dB)
CW: 400 Hz (-6 dB), 2 KHz (-60 dB)
Image rejection:60 dB
AF output power / speaker:2.5 W at 10% distortion / External only
External speaker connector:?, 4-8 ohm




TRANSMITTER SECTION
RF output power:

HighLow
SSB (PEP):100 W1 W
CW:100 W1 W
Modulation system:
FM deviation (Factory set):No FM
Spurious emissions:Better than -60 dB (Greater than 3 MHz from carrier)
Microphone impedance / connector:Hi-Z / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA, 1975-1977 (Discontinued)
Additional info:New price, december 1976 in the US: $489.95
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
HP-1144
HS-1661
HWA-104-1
SBA-104-1
SBA-104-2
SBA-104-3
AC power supply
Matching speaker
10 m accessory (Extends 10 m up to 29.7 MHz)
Noise blanker
Mobile mount
CW narrow filter. 400 Hz