R-5000 | Kenwood

Kenwood » R-5000

Triple-conversion HF desktop receiver. Analogical configuration, frequency range 0.1-30 MHz all-mode. With AF notch filter and IF-shift. Ideated in Japan, year of introduction 1986.

Reference market : ham-radio

General :
Frequency coverage 0.1000 ~ 30.0000 MHz
108.0000 ~ 174.0000 MHz [1]
Modulation mode CW / RTTY / LSB / USB / AM / FM
Tuning step 10 / 100 Hz 1 / 2.5 / 5 KHz
1 MHz
Receiver :
Sensitivity SSB / CW 2.5 uV (0.1~0.15 MHz, 10dB S+N/N)
1.0 uV (0.15~0.5 MHz, 10dB S+N/N)
4.0 uV (0.5~1.8 MHz, 10dB S+N/N)
0.25 uV (1.8~30 MHz, 10dB S+N/N)
0.5 uV (108~123 MHz, 10dB S+N/N)
0.25 uV (123~174 MHz, 10dB S+N/N)
RTTY 2.5 uV (0.1~0.15 MHz, 10dB S+N/N)
1.0 uV (0.15~0.5 MHz, 10dB S+N/N)
4.0 uV (0.5~1.8 MHz, 10dB S+N/N)
0.25 uV (1.8~30 MHz, 10dB S+N/N)
0.5 uV (108~123 MHz, 10dB S+N/N)
0.25 uV (123~174 MHz, 10dB S+N/N)
AM 25 uV (0.1~0.15 MHz, 10dB S+N/N)
10 uV (0.15~0.5 MHz, 10dB S+N/N)
32 uV (0.5~1.8 MHz, 10dB S+N/N)
2 uV (1.8~30 MHz, 10dB S+N/N)
4 uV (108~123 MHz, 10dB S+N/N)
2 uV (123~174 MHz, 10dB S+N/N)
FM 0.5 uV (1.8~30 MHz, 12dB SINAD)
1.0 uV (108~123 MHz, 12dB SINAD)
0.5 uV (123~174 MHz, 12dB SINAD)
Selectivity SSB 2.4 KHz (-6dB)
4.4 KHz (-60dB)
AM 6.0 KHz (-6dB)
20 KHz (-50dB)
FM 12 KHz (-6dB)
25 KHz (-50dB)
RF attenuator 10, 20, 30 dB
IF-filter ultimate attenuation 80 dB [2]
Dynamic range 102 dB (14 MHz, 50 KHz spaced signals)
86 dB (20 KHz spaced signals) [2]
65 dB (5 KHz spaced signals) [2]
Blocking 134 dB (100 KHz spaced signal) [2]
IP3 (3rd order intercept point) +15 dBm (14 MHz)
Image rejection > 60dB (0.1~1.8 MHz)
> 80dB (1.8~30 MHz)
IF rejection > 60dB (0.1~1.8 MHz)
> 70dB (1.8~30 MHz)
AGC Fast, slow
Frequency stability ± 10ppm max with temperature from -10°C to +50°C
Intermediate frequency 58.1125 MHz
8.83 MHz
455.0 KHz (FM only)
Features :
Memory 100 regular memories in 10 banks
Display 10 Hz frequency resolution
Antenna SO239 50Ω connector
Terminal jack 500Ω (0.1~1.8 MHz)
Power supply 13.8VDC external [3]
120~240 VAC
Power consumption 40 W (VAC)
2 A (VDC)
Audio power 1.5 W with an 8Ω load
Audio output Jack 6.35 mm headphone
Jack 3.5 mm line
Jack external speaker
Connections DIN RS232C PC
DIN accessories
Mechanical and environmental data :
Operating temperature from -10°C to +50°C
Dimensions 270 (W) x 96 (H) x 270 (D) mm
Weight 5.6kg

[1] With VC-20 optional converter unit
[2] This parameter, not in official data, was obtained with direct tests
[3] With DCK-2 optional kit

Description :

The Kenwood R5000 is a receiver that implements a triple frequency conversion configuration for the 0.1~30 MHz band and all the operating modes, the device can through the installation of an optional module also cover a portion of the VHF. The front end expresses a good dynamic behavior with an IP3 of +15 dBm while a series of octave preselection filters minimize second order distortions. The R-5000 integrates all the features required for HF listening, among them: double VFO, PBS (pass band shift) to move the intermediate frequency window of ±0.9 KHz for CW/RTTY/SSB modes, double noise-blanker with distinct blanking times and with intervention level adjustment, audio notch filter between 500~2600 Hz with minimum attenuation of 25 dB for SSB/RTTY/AM - this filter becomes band pass (APF) for CW mode, AGC time constant selectable between slow or fast, continuous gain adjustment in IF, squelch, RF attenuator in 10 dB steps, dual clock for different time zones, on/off timer. The tuning setting can be performed by a rotary command, by keyboard input, or by remote PC management. Optional VS-1 speech synthesizer for frequency announcement. There are 100 memory locations divided into groups of 10 to associate the antenna input (low or high impedance) over frequency and mode. Search options between channels in memory and between frequency limits, for the latter are used the locations 8 and 9 as extremes of the band. Mute connection to match the R-5000 to a transceiver. Dimmer to adjust the display brightness.

In the R-5000 there are four positions for the installation of filters at the level of the 2nd intermediate frequency. Some filters are standard and others optional, the characteristics of compatible devices are as shown in the table.

Filter Mode IF Selectivity
YK-88CN CW 8.83 MHz 0.27 KHz (-6dB)
1.10 KHz (-60dB)
YK-88C CW 8.83 MHz 0.5 KHz (-6dB)
1.5 KHz (-60dB)
YK-88SN SSB 8.83 MHz 1.8 KHz (-6dB)
3.3 KHz (-60dB)
YK-88A-1 AM 8.83 MHz 6.0 KHz (-6dB)
11.0 KHz (-60dB)

In addition to the automatic mode, which associates each filter to a given demodulation mode, the user with the exception of the FM can select the selectivity by acting on the special rotary switch on the front panel.

Performance and practical notes :

This receiver of Kenwood has reached a wide diffusion due to the good characteristics and the combination of functions it has, in the period that saw its introduction was the competitor that excelled head to head with another valuable apparatus, the Icom IC-R71E. For years, fans of broadcast and utility receptions on HF have divided their preferences between these two models. Specifically, the Kenwood R5000 has among its strengths a good dynamic range free from intermodulation and excellent selectivity for the SSB and AM modes, thanks also to the optional IF filters that can be installed and characterized by a form factor lower than 2:1 thus placing itself at the forefront of the construction technology. On the other hand, the excessive desensitization of the front end for the medium wave band is not satisfactory, in fact the adequate sensitivity on HF of 1.8~30 MHz places constraints when using the apparatus on lower frequencies. A receiver therefore unsuitable for the MW-DX. On the operational side, the IF-shift function, however useful, does not allow the decisive intervention that would be desirable.

Valuation :

Sensitivity
Selectivity
Dynamic range
Spurious response
Audio
Signal functions
Control functions
User friendly

Stars: 1=insufficient, 2=just sufficient, 3=mediocre, 4=good, 5=excellent

Review :

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