Kenwood Boat Anchors

Early on in my ham radio activity, I bought a few Kenwood rigs. This page is dedicated to documenting efforts to restore these rigs.

So, this first post will be to list an inventory of these rigs.

Kenwood TS-520

SPECIFICATIONS

GENERAL

Type: Amateur HF transceiver

Frequency range: 10-80 m i 7 bands

3.5-4.0 MHz

7.0-7.3 MHz

14.0-14.35 MHz

21.0-21.45 MHz

28.0-28.5 MHz

28.5-29.1 MHz

29.1-29.7 MHz

+ 10.0 MHz WWV receive only

Tuning steps: Continuous

Mode: SSB/CW

Channels/memory management: 4 fixed XTAL channels

Repeater shift/offset: No

Power supply: Mains: 120 / 220 VAC or 13.8 VDC

Current drain/power consumption: RX: 45 W @ mains, 5 A @ 13.8 VDC (heaters on)

TX: Max 280 W @ mains, 15 A @ 13.8 VDC

Antenna impedance/connector: 50-75 ohms / SO-239

Dimensions (W*H*D): 335*150*335 mm (13.2*5.9*13.2")

Weight: 17 Kg (37.4 lbs)

Other features: NB, VOX, 25 KHz calibrator

RECEIVER SECTION

Receiver system: Double conversion superheterodyne

1st IF: ? MHz

2nd IF: ? KHz

Sensitivity: 0.25 uV (10 dB S+N/N)

Selectivity: SSB: 2.4 KHz (-6 dB), 4.4 KHz (-60 dB)

CW: 500 Hz (-6 dB), 1.5 KHz (-60 dB), with optional CW filter

Image rejection: 50 dB

AF output power/speaker: 1 W at 10% distortion / 8 ohms

External speaker connector:

TRANSMITTER SECTION

RF output power: Max 100 W

Modulation system:

Max FM deviation: No FM

Spurious emissions: Less than -40 dB

Microphone impedance/connector: 50 kohms / 4-pin

MISCELLANEOUS

Manufactured: Japan, 1973-197x (Discontinued)

Additional info: Tube hybrid

Related documents: User manual (4.6 MB)

Modifications:

Options/Accessories:

- -

Kenwood TS-820S

SPECIFICATIONS

GENERAL

Type: Amateur HF transceiver

Frequency range: 10-160 m + WWV in 10 bands

1.8-2.0 MHz

3.5-4.0 MHz

7.0-7.3 MHz

14.0-14.35 MHz

21.0-21.45 MHz

28.0-28.5 MHz

28.5-29.0 MHz

29.0-29.5 MHz

29.5-29.7 MHz

WWV 15 MHz (RX only)

Tuning steps: Continuous

Mode: SSB/CW/FSK

Channels/memory management: 4 XTAL channels

Repeater shift/offset: No

Power supply: Mains (or 13.8 VDC with DC-DC option DS-1)

Current drain/power consumption: RX: 57 W (5 A heaters on) @ mains

TX: Max 292 W @ mains

Antenna impedance/connector: 50-75 ohms / SO-239

Dimensions (W*H*D): 335*155*335 mm (13.2*5.9*13.2")

Weight: 16.97 Kg (37.4 lbs)

Other features: Built-in digital readout, VOX, NB, RIT, IF shift

RECEIVER SECTION

Receiver system: Single conversion superheterodyne

IF: 8.83 MHz

Sensitivity: 0.25 uV (10 dB S+N/N)

Selectivity: SSB: 2.4 KHz (-6 dB), 4.4 KHz (-60 dB)

CW: 500 Hz (-6 dB), 1.8 KHz (-60 dB), with optional CW filter

Image rejection: 60 dB

AF output power/speaker: 1.5 W at 10% distortion / 8 ohms

External speaker connector: 4-16 ohms

TRANSMITTER SECTION

RF output power: SSB: ~100 W PEP (200 W PEP input) @ mains

CW: ~100 W DC (160 W DC input) @ mains

FSK: ~60 W (100 W input) @ mains

Modulation system:

Max FM deviation: No FM

Spurious emissions: Less than -60 dB

Microphone impedance/connector: 50 kohms / 4-pin

MISCELLANEOUS

Manufactured: Japan, 1977-197x (Discontinued)

Additional info: Tube hybrid: 12BY7A (Driver), 2*S2001A or 6146B (Finals)

Related documents: User manual (2.4 MB)

Service bulletins (1.2 MB)

Modifications:

Options/Accessories:

DS-1A

SP-820

TV-502S

VFO-820

YG-88C DC-DC converter for 13.8 VDC power

Matching speaker with filters and two line input

144 MHz transverter

External VFO

500 Hz CW narrow filter. IF: 8.83 MHz

Kenwood TS-830S

SPECIFICATIONS

GENERAL

Type: Amateur HF transceiver

Frequency range: 10-160 m + WARC

1.8-2.0 MHz

3.5-4.0 MHz

7.0-7.3 MHz

10.0 MHz (WWV)

10.1-10.15 MHz

14.0-14.35 MHz

18.068-18.168 MHz

21.0-21.45 MHz

24.89-24.99 MHz

28.0-29.7 MHz

Tuning steps: Continuous

Mode: SSB/CW

Channels/memory management: No

Repeater shift/offset: No

Power supply: Mains: 120 / 220 / 240 VAC

Current drain/power consumption: RX: 32 W (heaters off)

TX: Max 295 W

Antenna impedance/connector: 50-75 ohms / SO-239

Dimensions (W*H*D): 333*133*333 mm (13.3*5.3*13.3")

Weight: 13.5 Kg (29.8 lbs)

Other features: VOX, 25 KHz calibrator, NB, IF-shift, VBT (Variable Bandwidth Tuning),

IF-output, Tone control

RECEIVER SECTION

Receiver system: Double conversion superheterodyne

1st IF: 8.83 MHz

2nd IF: 455 KHz

Sensitivity: 0.25 uV (10 dB S+N/N)

Selectivity: SSB/CW Wide: 2.4 KHz (-6 dB), 3.6 KHz (-60 dB)

CW Narrow: See optional filters below

Image rejection: 60 dB

AF output power/speaker: 1.5 W at ?% distortion / 8 ohms

External speaker connector: 8-16 ohms

TRANSMITTER SECTION

RF output power: Max 100 W

Modulation system:

Max FM deviation: No FM

Spurious emissions: Less than -60 dB

Microphone impedance/connector: 500 ohms to 50 Kohm / 4-pin

MISCELLANEOUS

Manufactured: Japan, 1980-1988 (Discontinued)

Additional info: Tube hybrid: 1 driver and 2*6146B finals

Related documents: User manual (21 MB)

Modifications:

Options/Accessories:

AT-230

HC-10

HS-4

HS-5

KB-1

MC-30S

MC-35S

MC-50

PC-1

SM-220

SP-230

VFO-230

VFO-240

YG-455C

YG-455CN

YK-88C

YK-88CN

Manual antenna tuner

Digital world clock

Communications headphones, 8 ohms

Deluxe headphone set, 8 ohms

Deluxe flywheel VFO tuning knob

Noise cancelling hand microphone, 500 ohms

Noise cancelling hand microphone, 50 Kohm

Desk microphone, 500 ohms/50 Kohm switchable

Phone patch with VU-meter

Station monitor

External speaker with audio filters

Remote digital VFO, 20 Hz step and 5 memories

Remote VFO

Narrow CW filter, 500 Hz (-6 dB), IF: 455 KHz

Narrow CW filter, 250 Hz (-6 dB), IF: 455 KHz

Narrow CW filter, 500 Hz (-6 dB), IF: 8.83 MHz

Narrow CW filter, 270 Hz (-6 dB), IF: 8.83 MHz