Amateur Radio

Product Details:

We have achieved down-conversion format for all amateur bands:
A key point in tapping maximum performance from the 1st mixer in actual operation (say, CW operation) is to prevent the outflow of unnecessary signals, other than the target signal, from the mixer to the subsequent stage. This is because it can tap the maximum performance of the digital IF filter using the DSP in the final IF stage. The TS-990S main receiver employs a 1st IF frequency 8.248 MHz down-conversion format. It achieves superior close-in dynamic range unattainable through conventional up-conversion formats. Even if the interference is a close-in frequency, the receiver maintains a relatively flat dynamic range, which you can tune without losing your target signal.

The horizontal axis shows separation of the target signal by interfering signal frequencies (two waves). At a frequency of 10 kHz, interference 1 refers to reception frequency + 10 kHz, and interference 2 refers to reception frequency + 20 kHz.

The newly adopted mixer contributes to achieving +40 dBm IP3:
In place of the Double Balanced Mixer, which uses the J-FET, we have installed the newly adopted Double Balanced Grounded Switch Type (H-mode mixer) in the 1st mixer circuit, which is the heart of the main receiver. The transceiver is also equipped with a pre selector function (works on HF amateur band) that varies its tuning frequency in tandem with the receiver frequency. It effectively dampens interference from strong signals that cannot be minimized through bandpass filters on dedicated amateur bands. Furthermore, we have achieved a +40 dBm class of third-order intercept point for the signal path of the 1st mixer, based on select circuits and components, employing large core toroidal coils for protecting against distortion from large input signals, as well as using relays for the signal switching.

The newly developed narrow-band High-IP roofing filters show their true value by cutting adjacent unwanted signals:
The transceiver uses the down-conversion method on all amateur bands, and features five types of High-IP roofing filter. Narrow bandpass widths selectable are 500 Hz and 270 Hz for CW operation,2.7 kHz for SSB and 6 kHz and 15 kHz, which are suitable for AM/FM. These filters are automatically selected in tandem with DSP-based settings. Of course, manual switching is possible as well.

High C/N levels are realized by dividing high frequencies using the newly developed VCO frequency division 1st local oscillator:
The TS-990S Local Oscillator Circuit is an independent configuration that combines the main receiver and VCO Frequency Division/DDS, the sub-receiver, DDS, transmitter and conventional PLL, with the targeted signal system. The newly developed VCO frequency division format is used for the 1st local oscillator of the main receiver. The device achieves favorable C/N characteristics that rival the DDS direct format, and relatively spurious-free local oscillation signals that are characteristic of the PLL format, by oscillating and dividing the VCO at higher frequencies than the intended frequency. It is possible to convert it to 1st IF in a pure state without leaking the target signal as noise by reducing static noise from the local oscillator and increasing the C/N ratio.



Comes equipped with +-0.1 ppm TCXO, which combines high stability and energy saving:
The standard equipment includes a TCXO (Temperature-Compensated Crystal Oscillator), which stabilizes frequencies at ±0.1 ppm as the standard signal source. Unlike OCXO (Oven Controlled Crystal Oscillator), which requires warm-up time, this device can start up quickly even from the power-off position, while maintaining a high level of stability. It is in compliance with European energy-saving standard Lot 6. Power consumption in stand-by energy-saving mode is less than 0.5 W.

Additional Information:

• Item Code: TS-990S

Product Details:

The TS-2000/2000X is serious about digital signal processing. KENWOOD's advanced digital technology converts analog waveforms into digital data in real-time, enabling such digital processing as IF filtering, slope tune, auto notch and AGC. IF-stage DSP on main-band transmit and receive - including V/UHF bands - allows the greatest range of control and unprecedented performance.

DSP Detection:
IF-stage DSP means that the TS-2000/2000X offers significantly lower distortion and higher quality detection in all modes.(FM: digital AF filter)

Degital Filtering:
There is absolutely no need to purchase optional filters: digital IF filters are available for each mode (FM: digital AF filter), offering performance superior to anything possible with analog circuitry. When operating in SSB/FM/AM modes, this digital filtering enables both high-and low-cut frequency variance. Employing slope tune, you can thus cut out noise with minimal effect on sound quality. In AM mode, the high-cut frequency can reduce interference by controlling the IF pass bandwidth - useful for receiving shortwave broadcasts. In CW mode, the WIDTH function is supplemented by center frequency shirt, allowing adjacent signal interference to be tuned out. The WIDTH function also provides noise reduction caoabilities in FSK with 4 steps available: 250,500,1000 and 1500Hz. And thanks to AF-stage DSP, independent control of high-cut and low-cut frequencies(12 steps each) provides slope tune capability in FM as well.

IF Auto Notch:
Since it is working with a digital signal, IF Auto North (main band, SSB mode) can provideextremely sharp filterring of carrier frequencies from broadcast and continuous beat sources. The interfering beat is removed far more accurately than in conventional analog systems, and Auto Notch will even track changes in the beat signal (tracking speed can be varied in 5 steps).

If AGC:
The digital AGC circuit (main band only) delivers very fast release characteristics, surpassing even the best analog designs. You can select a custom release time (20 steps) for each mode, except FM.

DSP is also executed at the AF stage, offering Beat Cancel and CW Auto Tune functions. It also enables you to achieve remarkable noise reduction and apply custom enhancements to your transmitted voice.

Beat Cancel:
Automatic Beat Cancel, available for the main band (SSB and AM modes), immediately eliminates multiple beats interfering with a desired signal. It works well in combination with IF Auto-Notch (SSB).

Manual Beat Cancel:
A new Manual Beat Cancel function, which operates as a manual AF notch, can be used in all modes - though it is particularly effective in CW.

CW Auto Tune:
You no longer have to adjust the VFO while operating on CW - CW Auto Tune does it for you automatically by adjusting the VFO to your preset pitch at the touch of a button.

Noise Reduction:
There are 2 types of noise reduction: LEM (NR1) and SPAC (NR2). LEM (Line Enhancer Method) - available for all modes on the main band and FM/AM on the sub band - automatically forms a filter shape around the target signal for a custom, dynamic noise reduction capability. The degree of enhancement can also be set manually for mainband use. The SPAC (Speech Processing/Auto Correlation) function utilizes a special statistical/ correlation algorithm to pull out weak signals that are buried deep in noise. Although available for all modes on the main band, it's especially useful for tough CW conditions. The correlation time setting can be adjusted in 10 steps between 2ms and 20ms.

TX Audio Shaping:
You have 3 ways to tailor audio quality with DSP: the TX/RX equalizer (SSB/FM/AM), TX filter bandwidth (SSB/AM), and speech processor (SSB/FM/AM).

Additional Information:

• Item Code: TS-2000

Product Details:

The TS-590S marks a bold new chapter in KENWOOD's proud history of manufacturing high-performance transceivers. Featuring a narrow-band Roofing Filter the TS-590S significantly reduces interference from unwanted signals that would be hidden to lesser rigs. With IF AGC based on advanced DSP technology, KENWOOD has essentially redefined HF performance.

Built to satisfy the most demanding DX'er, this high-performance HF transceiver takes Amateur Radio to the next level continuing the KENWOOD tradition of operating ease and rugged reliability.

General Features:

• Best dynamic range in its class versus off-frequency interference
• 500 Hz / 2.7 kHz Roofing Filters
• 32-bit floating point DSP
• 100 W heavy-duty design
• Built-in automatic antenna tuner ( 6 ~ 160 meters )
• USB & Serial DB-9 ports for PC connectivity
• KENWOOD ARCP-590 Control Software
• KENWOOD ARHP-590 Radio Host Program for VOIP
• CW Auto Tune
• Beat Cancel

Additional Information:

• Item Code: TS-590S

Product Details:

High RF Power Output:
Equipped with a twin final section featuring splitter and combiner circuitry, the TS-480HX can provide up to 200 watts RF output (50MHz: 100W) with a DC 13.8V power supply. The TS-480SAT delivers up to 100 watts.

Separate Power Sources:
The 200W TS-480HX features two power terminals (DC1, DC2) for separate supply to each half of the twin final section; voltage balance is optimized to ensure stable output. This arrangement allows for use of two PS-53 power supplies or a single 41A power source.

Twin Cooling Fans:
When used for extended periods, the heat build-up inside a compact transceiver can be a serious concern, reducing its working life. But the components in the heavy-duty TS-480HX/SAT are designed to withstand heat. What is more, it is equipped with a die-cast aluminum chassis and twin fans for enhanced cooling efficiency. And since the control panel is separate from the main unit, the fans are able to generate a powerful airflow from front to back. As a result, you can rely on this transceiver to transmit continuously for 30 minutes* without having to power down. *This figure is supplied for reference purposes only and depends on there being an ambient temperature of 25. C, antenna SWR of 1.2 or less, and nothing to obstruct the air flow generated by the cooling fans.

RX Dynamic:
A quad-mixer provides RX dynamic range equivalent to that of the TS-950 class (at 50 kHz separation).

CW Support:
There is a full range of CW features, including auto tune. When in SSB mode, a simple key-press will switch automatically to CW. Another convenient feature is the ability to record three different messages for quick transmission during contests. You can choose between full and semi-break-in; for the former the delay time between key release and active receive mode can be set for between 50ms and 1000ms in 50ms steps. Other CW features include pitch control (400-1000Hz), side tone monitor with 10-step volume setting, an electronic keyer, microphone paddle mode and CW reverse mode.

IF Filters(Option):
Optionally available for more intense operations are 500Hz and 270Hz band CW narrow IF filters (YF-107C, YF-107CN), as well as a 1.8kHz band SSB narrow IF filter (YF-107SN). Any two of these IF filters can be installed inside the transceiver.

AF Digital Signal Processing(TX/RX):
Thanks to a 16-bit digital signal processor offering double-precision arithmetic operations (equivalent to 32-bit processing), a 100MHz clock and 16-bit A/D & D/A converters, the TS-480HX/SAT offers many powerful features.

Digital Noise Limiter(DNL):
With three level settings, the DNL is highly effective in removing even the pulse noise that cannot be eliminated with conventional analog circuitry and noise blankers. For extra clarity, however, it can be used in conjunction with a noise blanker, which removes pulse noise at the IF stage.

Beat Cancel(SSB/AM only):
DSP will also cancel out multiple beats falling within the AF filter range. Choose BC1 to remove weak and/or continuous beat interference, or BC2 to handle intermittent beat, like that of a CW signal.

Noise Reduction:
NR1 is a line enhanced filter with 10 level settings (including auto) - great for extracting a target signal. A good choice for CW operations is NR2 (SPAC), adjustable in 2ms increments (2~20ms); it can suppress noise at the same frequency as the target signal, allowing it to pull a weak target signal out from the surrounding noise.

TX/RX Equalizer:
The equalizer offers flat (default), high boost (2 types), formant pass, bass boost (2 types), conventional and user* settings, separately for transmit and receive. *Configurable using the ARCP-480 radio control program.

Additional Information:

• Item Code: TS-480SAT-HX

Product Details:

High RF Power Output (50W):
The TM-V71A provides an impressive 50 watts of RF power (VHF & UHF), with a choice of High/Mid/Low output.

Dual Receive on Same Band:
In addition to simultaneous receive on both VHF and UHF bands, this radio can receive two frequencies on the very same band. This means, for example, that you can have both the call channel and local channel, or the repeater channel and local channel, on the same band.

Compatible with ARRL TravelPlus* (US only):
The MCP-2A programming software is compatible with ARRL TravelPlus For Repeaters; this allows data export to the radio, making trip planning easy.

"Five -in-One" Programmable Memory:
For extra versatility, the TM-V71A has a programmable memory that can store five entire operating profiles, ready for instant recall at the push of a button. Each profile includes such settings as display mode, frequency range, and memory mode. It can equally be used to switch between 5 VFO frequencies

1,000 Multifunction Memory Channels:
There are 1,000 split memory channels for storing essential data - such as transmit and receive frequencies, frequency step, and tone frequency - plus an additional 10 for programmable scan. You can identify each channel with up to 8 alphanumeric characters (Memory Name function). Additionally, memory data can be edited and stored on a PC using the optional PG-5G programming interface cable and MCP-2A Memory Control software (a free download from the KENWOOD website*).

Multiple Scan:
As well as VFO scan, program scan, MHz scan, memory scan and call scan, the TM-V71A offers memory bank scan: the 1,000 channels are grouped into 10 banks for selective scanning. Also featured are scan resume (time-operated, carrier-operated, and seek), memory channel lockout, tone scan, CTCSS scan, and DCS scan.

Invertible Front Panel:
For greater installation convenience, the detachable front panel can be inverted so the transceiver can be mounted upside down, thus ensuring that the speaker is not obstructed.

Choice of 2 Backlight Colors:
To maximize visibility, the backlight color for the large LCD panel can be switched between warm amber and cool green.

104-Code Digital Code Squelch:
In addition to CTCSS (42 subtone frequencies), the TM-V71A is equipped for DCS (104 codes). Whatever code is chosen, the squelch will only open for reception if the other party uses the identical code.

Voice Guidance & Storage Option (VGS-1):
The audible announcement function is enabled for blind-key operation using the optional VGS-1 unit, which also provides up to 30 seconds of continuous recording.

Other Features:

• Wide reception: 118-524MHz, 800-1300MHz*
• MC-59 16-Key Hand Microphone with backlighting
• Separate VOL/SQL for A & B Bands
• 6-pin Mini-DIN Socket for External TNC
• 8-pin Mini-DIN Socket for PC Connection
• Programmable Function Keys
• Band Mask
• Call Channel
• S-meter Squelch & Hysteresis Timer
• Monitor Function
• Mute
• 3-hour Auto Power Off
• MHz Mode
• Selectable Frequency Step
• Shift Function
• Repeater Offset (selectable)
• Reverse
• Auto Repeater Offset (on/off, VHF only)
• Automatic Simplex Checker
• DTMF Memory (10 channels, 16 digits)
• DTMF Remote Control
• Time Out Timer
• Key Lock
• Power-on Password
• Memory Shift
• Programmable VFO
• Beep On/Off, Volume Control
• Mic Program Function
• Channel Display Mode
• Power-on Message
• LCD Brightness Control, Auto Brightness
• Switch to External Speaker
• Reset (VFO, PART, PM, FULL)

Additional Information:

• Item Code: TM-V71A

Product Details:

Whatever the mission, wherever you go, KENWOOD’s TM-281A is a radio you can count on. This compact transceiver delivers powerful mobile performance and such advanced features as multiple scan functions and memory names. High-quality audio is assured by the large speaker. Naturally, MIL-STD compliant toughness ensures rugged reliability. And operating ease is second to none: illuminated keys and a large LCD with adjustable backlighting make for user-friendly operation day or night.

Rugged, Compact Construction:
The TM-281A is tough enough for off-road assignments: it meets the strict U.S. Department of Defense MIL-STD 810 C, D, E, F & G environmental standards for vibration and shock. Installation is easy due to its compact dimensions: 160 (W) x 43 (H) x 126 (D)* mm .

* Total depth of 170.5 mm with protrusion

High Power Output (65 W):
Even with its compact size, the TM-281A delivers up to 65 watts – the sort of RF power you want in the wilderness – with a choice of High/Low output. A hand microphone is also supplied as standard.

Alphanumeric Lcd And Illuminated Keypad:
The vivid amber LCD display comes with a 32-step brightness control to suit any ambient light conditions. It displays up to 6 large alphanumeric characters. The front panel keypads are also illuminated for ease of use.

Impressive Front Speaker:
The large oval speaker (58 x 35 mm) mounted in the front ensures every message is heard loud and clear.
Memory Name Function:
Up to 100 memory channels can be identified with a maximum of 6 alphanumeric characters each. (200 channels are available if the memory name function is not used.)

200 Memory Channels Plus 1 Call-channel:
Each of the memory channels can be used to store transmit and receive frequencies independently. Additionally, memory data can be edited and stored on a computer*.

*Requires USB Programming Cable KPG-46U, and Memory Control Software MCP-1A (Ver.3.0 or later); consult your local dealer for details on purchasing these options.

Multiple Scan Functions:
Included as standard are VFO scan, memory scan, call scan, Tone/CTCSS scan and DCS scan – with TO (Time-operated), CO (carrier-operated) and seek scan resume modes. Also priority scan is available to check the Priority channel every 3 seconds.

Ctcss & Dcs Encoder/decoder:
The built-in CTCSS and DCS encoder/decoder covers 42 CTCSS sub-tone frequencies and 104 DCS sub-tone frequencies.

Other Functions:

• Power-on Message
• Wide/Narrow Deviation Selection (per channel)
• 1750 Hz Tone Burst
• Automatic Simplex Checker
• Reverse Function
• Auto Repeater Offset
• Beep On/Off
• Auto Power Off
• Time-Out Timer
• Channel Display Mode
• Busy Channel Lockout
• Memory Channel Lockout
• MR-shift
• Direct Frequency Entry
• Key Lock

Additional Information:

• Item Code: TM-481A

Product Details:

Featuring the SiRFstar III™ high-performance GPS receiver, KENWOOD’s TH-D72E dual-band transceiver is compatible with APRS® data communications.

Offering position and weather information, The TH-D72E opens up broad new vistas of outdoor enjoyment, especially for activities like trekking.

Built-in high-performance GPS Receiver:
The SiRFstar III™ GPS receiver, widely recognized for its high accuracy, is built into the top of the transceiver.

Target Point Functions:
You can store up to 5 target points and display, in real time, the direction and distance to each of these. You can also switch instantly between north-up and heading-up displays, whichever you fi nd more convenient.

GPS Logger Functions:

• Store up to 5,000 points of track data in internal memory.
• Choose from 3 different timing options for storing data – interval, travel distance, or beacon TX point (example: if set to a 10-second interval, logging is possible for up to about 14 hours).
• Convert GPS log data to the KML fi le format used by Google Earth™ using the MCP-4A memory control program.
• Extend operating hours (up to 35 hours per charge) by switching off transceiver functions and using just GPS.

APRS® Fi Rmware Equipped As Standard:
KENWOOD engineers working closely with Bob Bruninga (WB4APR), who fi rst developed APRS (Automatic Packet Reporting System), KENWOOD has developed system fi rmware for the TH-D72E that enables easy APRS operation without requiring a computer. The built-in GPS receiver provides positional information, while weather information can be acquired by connecting a meteorological device. All of this information can be exchanged with other stations, and it can also be output to a PC for map display using commercially available APRS application software.

USB (Mini-B) Port:
You can connect the TH-D72E directly to your PC with the supplied USB cable.

Built-in 1200/9600 bps TNC compliant with AX.25 protoco:l
The built-in TNC (Terminal Node Controller) is compatible with the AX.25 protocol, providing full access to APRS functions. A wide range of APRS applications can be used if the TH-D72E is connected to a PC with the supplied USB cable to enable control of the TNC. It is further possible to operate the radio as an IGate station (wireless-Internet gateway) or as a digipeater station (relay station for wireless packet communications).

Stand-alone Digipeater:
On its own, the TH-D72E can serve as a digipeater. It can thus be used in various outdoor situations as a digital repeater for packet communications – for example supporting data communications from a location surrounded by mountains.

Simple node access with EchoLink® memory:
You can store call signs, node numbers, commands, etc. in up to 10 DTMF memory channels dedicated to EchoLink. And thanks to automatic call-sign/DTMF conversion, it is easy to make use of EchoLink’s Connect by call and Query by call. Moreover, the MCP-4A software allows you to manage EchoLink memory.

Support for MCP-4A Software:
With the MCP-4A Memory Control software (a free download from the KENWOOD website), you can use a computer to input, edit and manage data – for the TH-D72E’s memory channels and APRS functions, for example. You can also back up GPS log data to your PC.

Positional/directional data:
With the internal NMEA 0183 compatible GPS receiver, information is available on distance, speed and heading in addition to latitude, longitude and altitude.

Meteorological information:
This transceiver can be connected to most Peet Bros.

Additional Information:

• Item Code: TH-D72E

Product Details:

Priority on Opening Ease:
Simple operation is an essential component of this FM dual bander, and KENWOOD engineers have ensured that it can be operated effortlessly with one hand. Your attention is drawn to the easy-to-read LCD - equipped with both contrast control and backlight - displaying essential frequency and memory information, intuitive menus, and multi-level battery status. In monoband mode, the size of the frequency display is doubled for even greater visibility.

Multi-Scroll Key & 16-Key Pad:
Operating ease is further enhanced with the multi-scroll key. Similar to the control found on some mobile phones, this can be rocked up & down, left & right with the thumb. Vertical operation controls frequency, while horizontal movement controls band selection. There is also a 16-key pad with keys that are ergonomically spaced and illuminated for night-time use.

434 Memory Channels, Multiple Scan Functions:
Other specifications are equally impressive: 434 memory channels, including 2 call channels and another 20 for programmable scan. Additionally, the convenient Memory Name function allows you to register a name (with up to eight characters) for each channel. A complete range of scan functions is also provided - including MHz, memory, call, tone, CTCSS, and DCS, plus a variety of Visual Scanning features. Group scan mode covers 8 groups of 50 channels each. And you can choose between time-operated (TO) and carrier-operated (CO) busy-stop-resume (SE).

Multi-Band Transceiver(Main Band) + Wideband Receiver(Sub Band):
As polished as the user interface may be, it's what is inside that counts. And the TH-F7E counts twice over: it's both a 2-band transceiver (Main A band) and a wideband 0.1~1300MHz receiver (Sub B band). In addition to FM/FM-W/FM-N/AM and SSB/CW, the receiver section offers a special information memory channel RX mode (10 channels), built-in ferrite bar antenna1 for receiving AM broadcasts, and Fine mode - with selectable increment (33/100/500/1000Hz2) - for extra-accurate SSB tuning. What's more, this handheld transceiver can receive 2 frequencies simultaneously, even on the same band. Versatility is first rate.
1 Switchable with external antenna. 2 Increment figures are approximate.

Tough Construction:
The smaller a transceiver, the farther it is likely to travel. Fortunately, the TH-F7E is built to take rough treatment in stride, satisfying the stringent MIL-STD 810 C/D/E standards for resistance to vibration, shock, humidity and light rain.

Lithium-Iron Battery:
Equipped as standard is a powerful 7.4V 1550mAh lithium-ion battery, offering high output with selectable HI/LOW/EL settings. Remaining lithium-ion battery capacity can be easily checked on the LCD display as it is clearly shown in 4-step increments. And as the charging circuitry is built-in, the battery can be charged while the TH-F7E is operating from a DC (13.8V) supply.

General Features:

• Simultaneous 2 frequency RX, even on the same band
• FM/FM-W/FM-N/AM plus SSB/CW receive
• 0.1~1300MHz high-frequency range RX (Sub B band)
• 7.4V 1550mAh lithium-ion battery for 5W output and extended operation
• 1200/9600bps packet function (ext. TNC)

Additional Information:

• Item Code: TH-F7E