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Last modified 2022-07-24

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Sommerkamp FRDX-500

A picture of Sommerkamp FRdx-500

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range: 1.7-30.1 MHz in 11 bands
160 m:   1.7-2.3 MHz (Optional)
80 m:   3.5-4.1 MHz
40 m:   6.9-7.5 MHz
20 m:   13.9-14.5 MHz
15 m:   20.9-21.5 MHz
10 m A:   27.9-28.5 MHz
10 m B:   28.5-29.1 MHz
10 m C:   28.9-29.5 MHz
10 m D:   29.5-30.1 MHz (Optional)
WWV:   9.9-10.5 MHz
CB:   26.9-27.5 MHz

Plus internal 6 m and 2 m converter options
Tuning steps:Continuous
Frequency stability:Less than 100 Hz for any 15 minute period after warmup
Mode:AM / SSB / CW (FM option)
Channels / memory management: 4 optional XTAL controlled
Power supply:Mains: 117 / 220 VAC
Current drain / power consumption:Less than 50 W
Antenna impedance / connector: 50-120 ohm / SO-239 (HF)
50-75 ohm / SO-239 (6 m option)
50-75 ohm / SO-239 (2 m option)
Dimensions (W*H*D):368*165*292 mm (14.5*6.5*11.5")
Weight:14 Kg (? lb)
Other features:ANL. 25/100 KHz XTAL calibrator.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 5.3545-5.9545 MHz
2nd IF: 455 KHz
Sensitivity: AM: 1 uV (10 dB S+N/N)
SSB/CW: 0.5 uV (10 dB S+N/N)
Selectivity: SSB/CW/AM (Narrow)
2.4 KHz (-6 dB), 4 KHz (-60 dB)
CW
1 KHz (-6 dB)
Image rejection:50 dB
AF output power / speaker:1 W at 5% distortion / External only ohm
External speaker connector:Screw terminals, 4 and 600 ohm




MISCELLANEOUS
Manufactured:Japan, 196x-196x (Discontinued)
Additional info: This is the Sommerkamp version of Yaesu FRdx-400 for
the European market.
See also the companion transmitter: FLdx500
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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FM detector unit
Internal 2 m converter unit
Internal 6 m converter unit