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Last modified 2021-02-08

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Realistic DX-300 (20-204)

A picture of Realistic DX-300 (20-204)

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range:0.01-30 MHz in thirty 1 MHz segments
Tuning steps:Continuous
Frequency stability:Less than 1 KHz per hour after 60 minutes warmup
Mode:AM / SSB / CW
Channels/memory management: None
Power supply: Mains: 120 VAC (USA) or 220/240 VAC (Europe/Australia). Fixed power cord
or 12 VDC (Barrel connector)
or eight internal LR14 / C batteries
Current drain/power consumption:Max 15 W @ mains
Max 8 W @ 12 VDC
Antenna impedance/connector:50 ohm / SO-239
Hi-Z / Screw terminals
Dimensions (W*H*D):362*146*252 mm (14.5*6*10")
Weight:6 Kg (13.23 lb)
Other features:Attenuator. Backlight.




RECEIVER SECTION
Receiver system:Triple conversion superheterodyne
1st IF: 54.5-55.5 MHz
2nd IF: 2-3 MHz
3rd IF: 455 KHz
Sensitivity: AM (10 dB S/N)
0.1 MHz: 20 uV
0.3 MHz: 2 uV
0.9 MHz: 1 uV
3.1 MHz: 0.5 uV
7.1 MHz: 0.5 uV
15.1 MHz: 0.5 uV
28.1 MHz: 0.5 uV
SSB/CW (10 dB S/N)
0.1 MHz: 10 uV
0.3 MHz: 1 uV
0.9 MHz: 0.5 uV
3.1 MHz: 0.3 uV
7.1 MHz: 0.3 uV
15.1 MHz: 0.3 uV
28.1 MHz: 0.3 uV
Selectivity:6 KHz (-6 dB)
20 KHz (-70 dB)
Image rejection:70-80 dB (Depending on band)
AF output power/speaker:1.5 W at ?% distortion / 8 ohm
External speaker connector:




MISCELLANEOUS
Manufactured:Japan, 1979-1980 (Discontinued)
Additional info:
Related documents: User manual (12 MB)
Service manual (4.1 MB)
Schematic diagram (1.8 MB)
Modifications and fixes:
Reviews:
Options/Accessories:
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