Each main section is equipped with its own dedicated DSP. By thus dividing the work of signal processing between the main IF, band scope and sub IF sections, KENWOOD engineers have ensured ample signal processing capability. (AF DSP is used for FM mode.)
- KENWOOD'S FLAGSHIP TS-990S AVAILABLE FOR DEMO AT THE ML&S STORE !
- KENWOOD'S TS-990S DEMO UNIT IS NOW UP AND RUNNING AT THE ML&S STORE!
The arrival of Kenwood's flagship TS-990S hf/6m multimode base station radio for demo was greeted with joy here at ML&S today. Our picture below shows Tony M0TNY from the sales team putting the radio through it's paces. The guys have spent the day preparing for your questions by getting hands on with this superb radio and are now ready to guide you through your new purchase. So why not give the team a call and secure a unit from stock today !
- KENWOOD TS-990S DEMO DAY AT ML&S !
KENWOOD TS-990S DEMO DAY AT ML&S !
Today saw David from Kenwood arrive at the ML&S store with the flagship TS-990S for it's first public demo day appearance in the UK.
The pictures below show the new HF/6M multimode transceiver being 'reviewed' by some of our loyal customers, who currently operate with high end radios on a daily basis. So, what was the verdict? It seems Kenwood have created another superb radio for all types of operators within the hobby. Much was said about the TS-990S's touch screen interface, which allows dx to be hunted down with a quick tap of the band scope ! A case of 'see it, tap it, hear it, work it! ' If you want to know more, feel free to call the sales team who will be more than happy to talk about their findings on the day.
- UNIQUE HONDA GOLDWING HF MOBILE STATION VISITS ML&S LTD !
Here at ML&S Ltd we love to chat with our customers to make sure the equipment they are buying suits their needs.When our loyal customer Ati M6ATI called to discuss his need to be active on all bands whilst looking for the simpliest way to operate mobile, we were glad to suggest the superb ML&S Ltd Yaesu FT-857D and Atas-120a antenna package. The same package as used by our sales staff in their four wheeled vehicles.
So you can imagine our surprise when a few weeks later Ati M6ATI turned up with his unique 2012 Honda Goldwing HF/6M/2M/70CM Motocycle mobile station. Check out the pictures below to see what an amazing job Ati has done installing the equipment. Well done Ati, see you on the bands !!
- First Yaesu FT-DX3000 is collected !
FIRST YAESU FT-DX3000 IS COLLECTED !
The first Yaesu FT-DX3000 from ML&S Ltd has been collected from the store. The lucky new owner Trevor 2E0BHZ was the first to get his hands on Yaesu's superb new HF/6M Mulitmode transceiver. Let's hope the smiles continue when the new dxcc's come flooding in !
- NEW KENWOOD TS-990 - Latest Update
Redefining State of the Art
New Top-of-the-range HF/50MHz Transceivers Carry on the Tradition of KENWOOD Flagship Radios
TS-990 Series to be launched next month
JVCKENWOOD Corporation has announced the launch of the new TS-990 Series of HF/50MHz transceivers, the latest KENWOOD competition-class models, in Japan and the rest of the world in late February 2013.
Product background and features
The debut of the TS-900 in 1973 established the magnificent tradition of KENWOOD flagship HF transceivers, designed for DX’ers with exacting requirements for long-range high-performance Amateur Radio communications. Successor series have been the TS-930, TS-940, and TS-950. Continuing this tradition, the new TS-990 is equipped with dual receivers to enable simultaneous reception on two different bands. The main receiver employs full down conversion and features a new mixer and narrow-band roofing filters, resulting in a third-order intercept point of +40dBm; this represents the highest level of RX performance. Also equipped are triple 32-bit floating point DSPs and an original IF AGC circuit featuring leading-edge DSP technology. Advanced KENWOOD technologies deliver the top-end RX performance that DX’ers are looking for in an HF transceiver. Moreover, 50V MOSFETs are used for the final amp, ensuring stable high-output operation with minimal distortion, even at 200W RF output power. All this and more: the world’s first*1 dual TFT display – with a band scope, audio scope, and S meter – offers enhanced visibility and operating ease.
*1 World’s first transceiver with dual TFT display (JVCKENWOOD data, as of January 8, 2013) to be launched in late February 2013.
Reference: The history of KENWOOD flagship transceivers
1973: TS-900 (historic all-band SSB transceiver, featuring cutting-edge technology)
1982: TS-930 (HF transceiver with the world’s first automatic antenna tuner for Amateur Radio use)
1985: TS-940 (high dynamic range HF transceiver which was more than a match for Cycle 22 pileups)
1989: TS-950 (world’s first HF transceiver with DSP, leading the way into the new digital era)
1. Down conversion employed for all Amateur Radio bands (main receiver)
The main receiver of the TS-990 employs down conversion for the first IF (8.248MHz) for all Amateur bands. This results in excellent dynamic range when adjacent unwanted signals are present – significantly better than what was possible with the up-conversion approach previously used. Even when the interfering signal is on an adjacent frequency, the TS-990 is able to maintain almost flat dynamic range characteristics, capturing just the target signal.
2. Newly developed mixer contributes to IP3 +40dBm performance (main receiver)
The first mixer circuit, at the heart of the main receiver, is equipped with a new double balanced grounded switch type mixer. In order to prevent distortion when there is a large input signal, the signal route up to the first mixer includes sophisticated circuitry with carefully selected components – such as large-core toroidal coils and relays for signal switching between bands – resulting in a third-order intercept point of +40dBm.
3. New narrow-band high-IP roofing filters help to remove adjacent interference (main receiver)
As well as employing down conversion for reception on all Amateur bands, the TS-990 is equipped with 5 high-IP roofing filters as standard. In addition to 500Hz and 270Hz filters, which provide the sort of narrow passband that is so important for CW (Morse code) operations, there is a 2.7kHz filter for SSB, as well as 6kHz and 15kHz filters suited for AM/FM use. These filters are selected automatically depending on the DSP’s final passband setting. Manual switching is also possible.
4. New VCO division-type first local oscillator divides high frequencies to ensure high C/N
The TS-990’s local oscillator features independent circuits optimized for different signals: VCO division type / DDS direct for the main receiver; DDS direct for the sub receiver; and conventional PLL for the transmitter. The newly developed VCO division-type approach adopted for the first local oscillator of the main receiver involves having the VCO oscillate at a frequency higher than the target frequency, and by dividing this frequency it is possible to generate a local oscillator signal with excellent C/N characteristics, almost as good as produced by a DDS direct circuit, and with low spurious emission equivalent to that of PLL. This reduces noise in the local oscillator and, thanks to the high C/N ratio, the target signal is not allowed to become buried in noise. The pure incoming signal can thus be shifted to a first IF.
5. ±0.1ppm TCXO ensures both high stability and reduced power consumption
As a standard signal source, the TS-990 is equipped with a TCXO (temperature-compensated crystal oscillator) that has a frequency stability of ±0.1ppm. In addition to delivering high stability, it does not require a warm-up period like an OCXO (oven-controlled crystal oscillator), so it can start up rapidly as soon as power is applied. It also complies with the European Union’s Lot 6 standard for energy conservation, consuming less than 0.5W in standby mode. Input/output of a standard 10MHz signal is enabled.
6. Sub receiver down conversion*2 on main Amateur bands below 21MHz range
For its sub receiver, the TS-990 uses a more advanced version of the receiver found in the TS-590, which since it was launched has been acclaimed for its top-of-class RX performance. Of especial note is the fact that it uses front end circuitry that enables down conversion for the 5 major Amateur bands, so that despite being a “sub receiver” it has what it takes for full-fledged RX applications.
*2 When IF band is below 2.7kHz for 1.8/3.5/7/14/21MHz bands (SSB/CW/FSK/PSK).
7. Dedicated triple DSPs for main & sub receivers plus band scope
8. Advanced AGC (Auto Gain Control), digital and analog
The audio quality of SSB and CW reception is not determined solely by audio frequency response and filter retardance: AGC performance also plays a very important role. KENWOOD fans report that they do not get tired even after listening to their radio for long periods, and this can be put down to the renowned AGC performance of KENWOOD radios. For the TS-990, engineers have further improved the DSP’s AGC algorithms and the analog AGC, resulting in an even better “KENWOOD tone”.
9. Extensive interference/noise removal features
The TS-990 Series features adjustable-passband IF filters, simple IF filter switching (A/B/C), IF notch, band elimination, digital and analog noise blankers (NB1/NB2) to reduce pulse noise, and noise reduction (NR1/NR2).
1. Robust design delivers stable operation at 200W
The push-pull circuit utilizes VRF150MP 50V power MOSFETs to deliver a stable output of 200W on all bands. Engineers have determined the bias and matching conditions that ensure maximum possible benefit from the characteristics of the VRF150MP, resulting in superior IMD (intermodulation distortion) performance. The DSP produces a clean modulating signal, and passing this through an amplifier with high linearity results in the renowned “KENWOOD tone”.
2. Internal automatic antenna tuner enables rapid tuning
Covering all Amateur bands from 1.8MHz to 50MHz, the built-in automatic antenna tuner is of the preset type, capable of tuning even during reception. It employs the relay approach, acclaimed for rapid operation, so the operator can quickly QSY (change operating frequency) with an instant band change. The tuner components – relays, capacitors, coils, etc. – are all rated sufficiently high to endure the 200W output.
3. Cooling system capable of providing ample airflow to each unit
To ensure a stable output of 200W, it is essential to have good cooling. The TS-990 employs a fin-type construction to enhance the heat dissipation efficiency of the large aluminum heat sink. Moreover, independent variable-speed fans are employed for the switching power supply, the final section, and the antenna tuner, ensuring ample airflow to cool each unit. Moreover, the switching power supply and final section are both served by twin cooling fans. Heat sensors are used to control fan speed, thus contributing to quieter operation.
●World's first*1 dual display
1. Dual TFT display offers excellent visibility
Located on the front panel is the world’s first1 dual TFT display, enhancing both visibility and operating ease.
Dual TFT display
2. Main display monitors target signal vicinity
The 7-inch TFT main display provides basic information on frequencies and modes as well as meters and the on/off status of key functions. It can also display internal parameter configurations and memory lists, and it features a band scope for monitoring band conditions; FFT processing by the DSP ensures a rapid sweep. The TS-990 operator can choose from a variety of display modes, including a waterfall display.
3. Sub display monitors actual target signal
The 3.5-inch TFT sub display is located just above the main dial, so the operator hardly needs to shift attention to check the frequency. But there is more: by displaying the demodulated signal audio spectrum, it enables monitoring of the actual target signal.
●Superb operating ease
1. New frequency function for intuitive operation
The frequency function that previously switched between VFO A and VFO B is now used to switch between main and sub bands. The sub receiver RX key located above the main dial is used to switch the sub receiver on/off, while the TX key enables switching between simplex and split operations. Also, the operator can tell at a glance what the current operating mode is thanks to the LEDs.
2. New split function for quick configuration
In addition to the M>S and M/S configuration found on the previous series, a 2-step split-frequency configuration has been added for quick setup.
3. Memory accessible even during split/sub receiver operation
With a maximum of 120 memory channels available, as well as storing frequencies, it is possible to arrange presets for beacons and broadcast stations. And thanks to dual-channel memory, the operator can easily access memory while receiving two frequencies simultaneously.
4. Remote PC operation of TS-990 Series
Once installed on a PC, the ARCP-990 radio control program provides remote access to almost all of the TS-990 functions. It is also possible to configure the various functions and manage memory channels. The software is provided free and can be downloaded from the JVCKENWOOD website.
Note: ARCP-990 is compatible with Windows XP (32-bit, SP3 or later), Windows Vista (32-bit, SP2 or later), and
Windows 7 (32-bit/64-bit) operating systems.
5. Data modes facilitate switching between external terminals
In addition to the mic terminal, the rear panel offers a variety of I/O options, including analog audio I/O, USB audio, and digital optical interfaces. When these are combined with data modes 1 to 3 for SSB, FM and AM, it is easy to switch between external equipment for modulation/demodulation. Also featured are Data VOX and a mute switch for each modulation line.
6. Enhanced convenience with 2 USB sockets on the front panel
7. Firmware updates via USB memory stick or USB cable
All company names, brand names and product names are registered trademarks or trade names of their respective holders.
●New option: SP-990 external speaker
SP-990 with TS-990S
・Full-range speaker (5W, 8Ω)
・Built-in filters (3 x high-cut, 3 x low-cut)
・2 inputs (A/B)
・Dimensions: W200 x H165 x D300 mm
(not including protrusions)
- Wythall Radio Club visits ML&S!
- What a fun day! Our first club visit to Martin Lynch’s shop in Chertsey, Surrey.
Six of us made the trip down a frosty, foggy M40 early this morning to enjoy the ML&S open day & hog roast and we were not disappointed! We arrived around 8.30am to find a Car Park space reserved for our Chairman Mike G4VPD. He won’t live that down in a hurry!
We then spent a happy few hours browsing the shop, enjoying a breakfast of unlimited free bacon sandwiches, free drinks and very friendly chat with the ML&S staff.
This was also the day when we were presented with our £600 voucher, won in the ML&S raffle at the National Hamfest in September, to spend in store. Kenwood’s David Wilkins G5HY was on hand to present the voucher, which was very promptly exchanged in part payment for a Kenwood TS-590S!
Needless to say, there were a few other pre-Christmas deals done and Santa obviously came VERY early for all the members who travelled down!
A hot pork lunch and more drinks and soon it was time to leave, but not before we felt we had made a few new friends in the South-East.
Many thanks to Martin, Richard and all the staff and Martin’s family at ML&S. We look forward to seeing you again in the New Year.
G5HY from Kenwood(UK) presents Mike G4VPD with our £600 voucher
Click here for view all the pictures from the day
- Alan G3XAQ wins Begali Key at FOC Dinner donated by ML&S Ltd
Martin Lynch was delighted to see Alan G3XAQ win the Begali key at the recent FOC Dinner. "FOC" is the First Class CW Operators Club founded in 1938 with 500 members worldwide. For more information click here: www.g4foc.org
On receiving the Key, Alan emailed this message:
I went to the FOC dinner at Milton Keynes on Saturday. I was
astonished to win the fine Begali key in the raffle that you had so
kindly donated to the club via Roger Western. I was particularly
pleased to win it because I "never" win raffles (ask my wife). The
last prize I recall winning was a Henley Solon soldering iron when I
was 14 years old. I am a fair bit older now.
Your gift was very much appreciated by all the 100 or so members who
attended, judging by the "Ooo"s and "Ah"s and the number of folks who
has to come and have a play with it afterwards.
Thanks again. Much appreciated. Very best wishes,
- Icom IC-7100 Preliminary Information
Showcasing at the Tokyo Ham Fair 2012, IC-7100 HF/VHF/UHF Amateur Radio Transceiver
Icom Inc. have shown a new sample of a revolutionary HF/VHF/UHF Amateur Radio Mobile Transceiver with touch screen control called the IC-7100 at the Tokyo Ham Fair 2012.
The IC-7100 is a HF+6m+VHF+UHF all mode compact radio with an innovative slanted touch-screen LCD controller. A first for an Icom transceiver, the IC-7100 is designed to the 70MHz band in European versions where 70MHz is open to Amateur radio enthusiasts. To maintain its commitment to D-STAR, all versions of the IC-7100 will come with standard D-STAR DV mode.
Since the launch of the original IC-706 in 1995, Icom has been leading the market of HF/VHF/UHF multi-band mobile radios. The popularity of vehicular mounted amateur radios may not be as high as the times of the IC-706 series, but the IC-7100 has been carefully designed to reignite Amateurs’ interest in mobile communications and brings digital communication opportunity to a wider range of radio Amateurs.
Planned Features include
• Slanted front separated controller with large touch screen dot matrix LCD (controller cannot be attached to body front)
• Speaker is self contained inside the controller
• Full mode (SSB, CW, AM, FM, RTTY decode) and D-STAR DV
• HF (100W) / 50MHz (100W) / 70MHz (50W) / 144MHz (50W) / 430MHz (35W) (Note: Power may be different according to version. The 70MHz band is available for some versions only)
• Lower current consumption / cooler operation (compared with the IC-7000)
• SWR meter function also works for VHF and UHF bands
• Remote power on / off
• IF DSP for filtering / interference removal / noise reduction
• SD memory card slot, voice recording
• USB Audio In / Out, remote control
• +/- 0.5ppm frequency stability
• 505ch memory channels
Further details about its features and options have been made available on a Pre-release product information sheet. The IC-7100 Pre-release information can be downloaded on this page.
Download here the High Resolution Image
- Icom ID-51A/E Preliminary Information
New to the Tokyo Ham Fair 2012, the ID-51A/E Dual band D-STAR Handheld
Icom Inc. have shown a prototype of a new dual band D-STAR handheld radio at the Tokyo Ham Fair 2012 which is being held between August 25th and 26th 2012 in Tokyo.
The ID-51A/E series D-STAR handheld radio is an evolution of Icom’s ID-31A/E UHF D-STAR Handheld and will be capable of both VV / UU 144MHz + 430MHz dual band operation. The ID-51A/E will also include the much praised menu-driven user interface of the ID-31A/E series with a much bigger LCD screen. The ID-51A/E will also feature integrated GPS & D-STAR as well as IPx7 waterproofing, SD-Card slot and slim body found on the ID-31A/E.
Other planned features include
• VV / UU capable 144MHz and 430MHz dual band (Only one DV signal can be received, similar to the manner as the IC-2820H/E2820 series).
• Limited wideband receive for AM/FM broadcast (no bar antenna), 118-137MHz (AM air band), 137- 174MHz and 380-479MHz
• Larger full dot matrix LCD
• Broadcast mode LCD indication (rather than VFO only, station name can be shown)
• Enhanced logging function. The ID-51A/E records frequencies, time, position and other operation related information on the SD Card.
• Improved automatic response function. The radio may be programmed to have an automated response self call sign for unique reply in addition to regular call sign
• Voice recorder function (not the communication logging function but a simple digital voice recorder function which records your voice).
• One touch voice play back function for contest transmissions
• Frequency and mode of operation speech and specific frequency beep function helps blind hams for easier operation.
• Enhanced RX call sign memory records up to 50 past received call signs, which can be exported to micro SD card.
• Increased memory channel for repeater list (750)/ GPS memory (200).
• Approx 10mm taller and 1mm thicker than the ID-31A/E (weight TBA) • 5 Watts output (tx)
Further details about its features and options have been made available on a Pre-release product information sheet on the side of this page.
A high resolution picture of the ID-51A/E can be downloaded from our image bank. Click here to enter our image bank.
- 2012 McMichael Rally
Yaesu FT-450D won at yet another successful McMichael Rally.
The weather was kind to all that visited the 2012 McMichael Radio Rally & Boot Fair in July. Pure luck some would say – it hadn’t stopped raining for weeks but the pause button was pressed for the entire day.
As usual and very generously, Yaesu UK & Martin Lynch & Sons provided a brand new Yaesu FT-450D as a raffle prize won this year by Robert Hanstock G0LZB, seen shaking hands with Richard Atcherley, the sales manager for ML&S . An excellent turn out with dozens of boot fair tables, traders and hot dogs!
- RSGB General Manager
- Graham Coomber, G0NBI has been appointed as General Manager of the Radio Society of Great BritainClick here to download the Press Release
- Icom ID-31E D-Star UHF Digital Transceiver Shown at Friedrichshafen Ham Radio Show 2011
- Icom have provided a really nice surprise for everyone at the Friedrichshafen Ham Radio Show 2011 by previewing a new UHF D-Star Digital transceiver. Called the ID-31E, it is intended to show the continued importance that Icom place on D-Star.
This is the first public showing of this new model which will feature the following:
- Built in GPS Receiver
- D-Star DV/Analogue FM Mode
- DR Mode User-Friendliness Improved
- Directional Keypad Navigation
- Full Dot Matrix Display
- Slim Compact Design
- IPX7 Waterproof Construction
- Free Download Cloning Software
- Micro SD Slot