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Last modified 2023-09-27

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Sommerkamp FTDX-505

A picture of Sommerkamp FTdx-505


Type:Amateur HF transceiver
Frequency range: 10-80 m
3.5-4.0 MHz
7.0-7.5 MHz
10.0-10.5 MHz (WWV RX only)
14.0-14.5 MHz
21.0-21.5 MHz
28.0-30.0 MHz
(Plus two optional bands)
Tuning steps:Analog / continuous
Frequency stability:? ppm
Mode:AM / SSB / CW
Channels / memory management: None
Repeater shift / offset:No
Power supply:Mains: 117 or 220 VAC
Current drain / power consumption:RX: ? W
TX: Max ? W
Antenna impedance / connector:50-120 ohm / SO-239
Dimensions (W*H*D):400*159*349 mm (15.75*6.25*13.75")
Weight:18.1 Kg (40 lb)
Other features:25 & 100 KHz calibrator. NB. VOX. Phone patch terminals.

Receiver system: Double conversion superheterodyne
1st IF: ~5.77 MHz
2nd IF: 3.18 MHz
Sensitivity:0.5 uV (20 dB S/N) @ 14 MHz SSB
Selectivity: SSB
2.4 KHz (-6 dB)
4.2 KHz (-60 dB)
600 Hz (-6 dB)
1.2 KHz (-60 dB)
Image rejection:50 dB
AF output power / speaker:1 W at ?% distortion / 8 ohm
External speaker connector:

RF output power:

Max Pwr
SSB (PEP):~250 W (560 W PEP input)
CW:~250 W (500 W input)
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 3-pin (1/4" phone jack)
Microphone input level:? mV

Manufactured:Japan, 1971-1973 (Discontinued)
Additional info:
Related documents: User manual (2.8 MB)
RF finals: Two 6KD6 beam pentodes
Modifications and fixes:
Options / Accessories:
FV-401 External VFO