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Reviews Categories | Transceivers: HF Amateur (inc. HF+6M+VHF+UHF models) | Kenwood TS-990S Help

Reviews Summary for Kenwood TS-990S
Kenwood TS-990S Reviews: 71 Average rating: 4.7/5 MSRP: $$7999
Description: Kenwood FLAGSHIP TS-990S has arrived. Kenwoods sets a new preformance and operating standard for the ultimate Amateur Transceiver. Advanced KENWOOD technologies deliver a Top-End receive and transmitt experience on Amateur Bands 160 Mtr to 6 Mtrs. Kenwood proudly adds the 990S to its trendsetting TS series!
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W3ULS Rating: 4/5 Jun 2, 2015 07:39 Send this review to a friend
Excellent Receiver  Time owned: 0 to 3 months
In this initial review, I give the TS-990S a "4" instead of a "5" rating strictly for non-electronic reasons (see below). As an amateur radio transceiver, it rates a "5."

I have not found my FTdx5000's receiver to be superior in any respects--sensitivity, selectivity, or NR functioning. This surprised me, because the 5000 was the best I've owned (until I purchased a TS-990S). The 990S was at least the equal, and sometimes better, in dealing with various levels of signals (CW only) and noise. Icing on the cake is the performance of the band scope, which, as has been pointed out, clearly shows close-spaced signals of varying magnitude. I've never had the experience of watching CW signals on a scope in a contest as I did with the CQ WPX contest over the weekend as the crowded 20 meter band's contest stations were sharply defined. A revelation. In comparison, the FTdx5000's monitor is primitive.

So why the "4"? Well, first it's the front panel layout, ergonomically challenging to this op. Whoever said the IC-7800 (or even the FTdx5000) is better in this regard is correct--by a mile. Second, the manual, even updated as it has been, is a linguistic mess--grammatical mistakes, misspellings, and overall poorly organized. I can't believe anyone in authority at Kenwood Japan is an English speaker, for this manual would not exist if there were.

Icom, on the other hand, has just released a significant firmware update for its venerable IC-7600. The release includes a substantially revised manual, which is excellent in every respect. Kenwood needs to second a couple of Icom's manual writers to revise the TS-990S' manual. It is not now in the big leagues, whereas its new transceiver is.
ON6KE Rating: 3/5 Apr 18, 2015 00:13 Send this review to a friend
OK transceiver  Time owned: 6 to 12 months

I bought my TS-990 on 30/7/2014, I sold it 2 weeks ago.

But a FEW of the reasons:
- Fans blowing every 3-4 minutes even when 100% RX. Nobody ever mentioned this to me B4 I bought the rig;
- no CW keyboard;
- only 8 CW message banks but 12 PF keys,
- the noise bankers, need I say more;
- NR1 and NR2 just average, noise reduction on my KX3 WAY better;
- ATU average, can't tune a 16m long wire with 9:1 balun on 160m for instance, the KX3 tunes it 1:1;
- no cursor/mouse control on the left most display;
- LONG overdue and disappointing firmware upgrade last January. A few bug fixes and next to zip new functionality;
- Touch screen rather insensitive;
- Sherwood test results disappointing.

But a few items that made me decide to let go of the 990.
In the mean time Kenwood preferred to make an uplift for the 590 rather thank work on the 990 firmware.

By the way, I'm rather certain that in 12-18 months they'll have a TS-590SG sub-receiver on board the 990, that making it a TS-990SDX analogue to the 590SDX. Not good for teh current 990S market value.

Gust ON6KE
GAZZER Rating: 3/5 Apr 17, 2015 13:57 Send this review to a friend
It's a good radio - with faults.  Time owned: 0 to 3 months

What's going on here - denial or something? I allowed myself to be influenced by this forum in finalizing my decision on which flagship to buy - and frankly that's a choice I would like to have again.

Let me just present a few honest and undeniable truths here ...

The main receiver cannot hear anything after 7500 Khz and only starts coming back at around 9000 - fully back by 9500. Whilst the (TS590) sub receiver does a valiant job covering this fault - that's not what we paid for. Kenwood's reluctant official response (after 20 days silence) was "read the small print ... performance not guaranteed outside the ham bands". And indeed that is in the (very) small print. So - what have we got here - a main receiver that doesn't work "because of the effect of the Pass Band filter" ... Well, hello Mr. Kenwood ... Ain't no Yaesu or Icom with that problem in the past 25 years ... or any other Kenwood for that matter, ironically.

Secondly, one comment here actually praised the superior performance of the noise blankers (2) and Noise reducers (2) .... What's that about??

Even Kenwood have accepted that the noise blankers don't work and the noise reducers wallop the target signal into something unrecognizable. "The engineers in Japan are working on that".

I too wanted to be able to shout "greatest radio I ever used" from the rooftops as Kenwood made off like a bandit with my $7,500, but I can't, because it isn't. Side by side tests with a Yaesu FT-990, shows equal results at best on the receive side - where the main receiver works.

If I want to drown out pulsing or electrical noise typical to a city environment, It's best to switch back to the 1990 FT-990 (that's probably not entirely fair - that radio had one of the best noise blankers ever made), but this is a flagship (?).

If I want to track aviation HF (or anything else) between 7500 and 9000, I have to rely on the sub-reciever and tolerate the s-meter on the main receiver sleeping cosily on "0".

These issues have sometimes been described sympathetically as "characteristics" ... they are not. They are faults. Reluctantly accepted by Kenwood who are trying to figure out how to get the NB's and NR's up to even acceptable and they accept that there is nothing they can do now about the deaf spot ... Hence, their somewhat ungracious "read the small print" response.

If you live in the countryside, the noise issue is a tolerable problem. Also, for most, the 'dead zone' doesn't matter a lot (it does to me). Otherwise this is a great radio, and the range of toys it comes with is impressive, making it a joy to use, but please .... let's not declare that their first flagship has earned is flagship tag yet ... it hasn't.

I hope this hasn't upset too many people - and I wish i had read something like it before I bought mine.



VK3TEX Rating: 5/5 Mar 24, 2015 02:13 Send this review to a friend
Fantastic  Time owned: more than 12 months
Fantastic radio, does everything I need and more. I have zero complaints about this radio.
The ability to tailor everything to suit yourself regarding transmit and receive is outstanding.
Everything is well laid out and logically placed.
I had a problem with my radio in the first month with an intermittent problem but Kenwood Australia and their technician Jan found the faulty intermittent broken internal coax cable and they provided absolutely fantastic and excellent service and kept me informed of the progress in finding this difficult fault. Well done Kenwood Australia!
After I got it back it has performed flawlessly.
Noise blankers and noise reduction is the best I have used yet.
I only had the Icom 7700 to compare it to and the 990 is better in almost every aspect.
The receiver doesn't suffer from AGC impulse overload from lightning and switching transients like the 7700 did which was a major issue with the 7700 for me.
The only thing I really liked better on the 7700 was the flexibility with choosing options, color etc, for the screen and waterfall. But the 7700 is not touch screen for instant QSY.
Although mouse function was possible which was ok I geuss.
All in all , I could go on ,but if you can afford one get it.
The learning curve was a bit longer than the 7700's but I had
A lot of fun learning all the great functions and features of this
Flagship radio.
I have pictures of my station on my QRZ page if anyone is interested in looking.

Les, VK3TEX.
W8KMA Rating: 5/5 Mar 6, 2015 09:15 Send this review to a friend
Quite the Rig!!!  Time owned: 3 to 6 months
For what I do it is perfect!! Reminds me of all the radios I've owned over the years wrapped up into one rig. I have had the following rigs, TS-520,TS-520S,TS-820s,TS-830S,TS-440S,TS-940S,TS-480S,TS-590S, TS-950SDX, Flex 1000, Flex 5000A, Cubic 103, and a couple TS-2000s. It offers the best of old and new plus much much more. I kinda wish it had 2m/70cm of the same performance standards. Then you would never need another radio for anything!!..I am glad I bought it as it will be in shack for many years to come!!
AA6VB Rating: 5/5 Jan 21, 2015 15:23 Send this review to a friend
Overall, The Best Radio I Have Ever Owned  Time owned: 0 to 3 months
Had this radio about a month and compared it side by side to the K3 and Icom 7800. Each rig has its strong points. The 7800 excels in the ergonomics department and has a great built in RTTY interface for casual RTTY folks like me. The ergonomics of the 990 are not quite as good but close and also excellent.

The scope is a step way ahead of the 7800 but not as good as the K3/P3. The scope has excellent definition and ability to see signals that do not register on the S meter - something the 7800 does not do. The signals are much "narrower" compared to the 7800 - a "nail" vs. a "blob. The P3 is a "needle".

The transient spikes in the 990 are less of an issue than in the 7800 and a non-issue in the K3.

I could go on, but I love using the 990 and it has performed very well in pileups - as good to my ears as the K3 and better than the 7800.

Overall, the 990 is the best radio I have ever used, and I have had almost all of the high end rigs in last 20 years.

I am glad I replaced my 7800 with the 990 (though I think the 7800 is outstanding in its own right) and wish I had not waited so long.

KD4W Rating: 5/5 Jan 20, 2015 16:25 Send this review to a friend
Superb   Time owned: 0 to 3 months
I've owned this rig for exactly a month now and every day that passes I find it more and more brilliant! With 102 buttons (of which most have more than one function)and 28 dials it has a one big learning curve. However with each day that passes I am more impressed than I was the day before. I've owned few first class radios including the ICOM 7700, the Elecraft K3, an FT1000, an Omni 7 and and a Ten Tec Eagle among others, but this radio just flat blows them all away. There is no way that someone can spend a day or even a week this this rig and give it a fair rating.
For my money Kenwood has set a new standard and this radio is worth every cent of it's price.
W3DIY Rating: 5/5 Nov 17, 2014 17:10 Send this review to a friend
TS-990S vs IC7700  Time owned: 0 to 3 months
The following is a side by side comparison.

1. The TS990S AT quickly matches my non resonant inverted V and Doublet antennas, on the top bands, the 7700 or PW1 will not.
2. AGC recovery, from transient spikes, is not a problem for the 990, but a major issue with the 7700.
3.The NR is very effective on the 990. The 7700 reduces the noise alright but it distorts the audio and drastically reduces the volume.
4. The receiver filtering is superior on the 990.The 7700 does not match the 990s ability to minimize adjacent channel splatter.
5. The clarity and brilliance of the display is superior. The 7700 required an external monitor, in my shack, with afternoon sun.

My first ICOM rig was new 735, purchased in the early 80s, and its been nothing but ICOM until now.I was expecting to find fault with this radio. At first glance all the tiny buttons seemed like overkill, but after becoming accustomed to the front panel layout its less of an issue. For my style of operating the 990 excels at my QTH.
M0MCX Rating: 5/5 Sep 22, 2014 08:22 Send this review to a friend
Extremely pleased  Time owned: 6 to 12 months
Everything about this rig is solid. My expectations had been managed by all the articles that I've read on the internet about the radio and I double checked the radio when I compared both the FTdx5000MP and the TS-990s at the RSGB convention in late 2013. For me, the TS-990s was the winner, for although it was more expensive, I found the in-built "toys" were a big draw for me as was the filtering. Initially, I was drawn to the the in-built monitor and scope function and the fact that it's very big - which suits my style. More important though was that a single USB cable connects the rig to my WIndows 7 PC, effectively de-cluttering my MK2R+ SO2R system. I was fed up with all the wires everywhere.

Initially, I connected the rig to my 40m loop, a full wave triangle in the garden at about 20 feet. It took a few days to build my confidence but I heard some stations working UBA contest and made a few fast contacts. James (M0YOM) came around and we played with the roofing filters. I set up three main parameters, wide, intermediate and very sharp. Together with the width and shift, these seemed extremely effective in dialing out close QRM. There was to be no overload with close-too stations.

Hooking up to Ham Radio Deluxe was a breeze, however like all things on the TS990s, the definition of a breeze is sitting for a couple of hours and a cup of coffee thumbing the manual and cross referencing many chapters. Finally PSK31, PTT and the rest of the regular rig-controls were working. HRD (Ver 5) doesn’t support the TS-990s natively, however selecting the TS-590 does. (Version 6 of HRD does support TS-990s).

I really thought I needed a new rig because I like to use my radio in the evening which means mostly 40m and 80m. These bands can be pretty tight, especially when there are contests on. My FT-1000MP used to have a hard time copying a weak station when I was tucked up right next to a loud one. Using the TS-990s in this scenario is a pleasure.

In use: I have made around 2,500 part-time HF QSOs this year split between voice, Digital and CW. I'm a busy working guy so every QSO for me counts since I don't get much play-time. Frankly, I am astonished at the performance. I was so encouraged that I had a flight-case made and regularly take the rig out "field-day" style. This means I only need my laptop and a USB cable and I'm free to play on any mode I like.

Someone mentioned that the ATU doesn't work for them. Remember, internal ATUs are really for dialing out relatively small amounts of mis-match. It so happens that the FT-1000MP (for instance) has a "wider" matching ability but let's face it, the internal ATU does what it's supposed to do. Outboard ATUs will always do a better job.

Finally, the support forum on Yahoo is a godsend. Even if it's just to get a pointer to the page number in the manual.

Bottom line is that I probably will never buy a rig as fancy as this again, I hope it lasts my life-time.
W9TVX Rating: 5/5 Sep 19, 2014 13:06 Send this review to a friend
1 Year Review  Time owned: 6 to 12 months
This is my one year ownership review of the Kenwood TS-990S. I go into the features that I find to be most useful to me personally, but this is by no means a comprehensive list. As it is, this review grew much larger than I intended!


I operate primarily on phone and digital modes including PSK, RTTY, JT65, and OLIVIA. Without doubt the TS-990S is an absolute joy to operate. It is a very pleasing radio to which to listen, and the overall ergonomics and broad range of interface options make it a delight to work. It is by no means a perfect radio, and I will outline some of my issues with it during in this review. With that said, I would with no hesitation purchase this radio again.

I wish the eHam scoring system were more granular. Unfortunately giving the radio a 5/5 means a 100% score, and giving it a 4/5 is an 80% score. Neither of those are fair. I would lean towards giving the radio an A- or a score of 90 - 95%, so somwhere between a 4.5 & a 4.75

Earlier this year it looked as if I would sadly have to the sell my TS-990S. I went as far as posting the radio and almost sold it a couple of times. Happily the circumstances that were forcing me to sell the radio were mitigated and I was fortunately able to keep it.

Overall the radio has a tremendous number of positives. However, nothing is perfect, and the TS-990S has it share of negatives including:

- The main display's panadapter is, in my opinion, inadequate. It is neither fine grained nor configurable enough to be of significant use except as a general guide to what is going on the band. It is quite annoying that I had to spend almost another $1,000 on an external SDR to get decent panadapter capability.

- No IF port which means that you have to split the output of the raadios RX-OUT port back into the RX-IN port and to whatever external panadapter you use resulting in a 3dB signal loss. This can be mitigated if desired with an active multicoupler, but it is a pricey option.

- The radio's rear video output port can only present a mirror display of the radio's primary display. This is basically useless, and in my opinion, and a waste of a monitor. (more on this later)

- Kenwood is slow with firmware updates. I suppose this is pretty standard for Japanese manufacturers, but when compared with way Elecraft keeps the K3 updated, it is a bit disheartening.

- Noise Blanker: This is a well known issue and one that can be quite annoying depending on the operating environment. Basically when a signal is stronger than the background noise, it will essentially render the noise blanker ineffective

- The radio has the capability of being connected to a network; however remote operation requires the use of a local PC.

- A more minor yet still irritating point: some configuration data not recalled between modes. For example when I switch from USB to USB DATA, I always have to remember to disable and renable my TX EQ when switching between modes.


My station setup as follow:

Antennas: Traffie 5 band Hexbeam at 35ft, ground mounted Steppir BigIR vertical with 42 radials - used primarily on 40m & 6m .

Amplifier: Tokyo Hypower HL-1.5KFX 1KW solid state linear amplifier

Tuner: Palstar HF-AUTO

Panadapter: QSR1 SDR connected to the TS-990's RX-OUT via a Stridberg MCA102M multicoupler and a DX Engineering Receiver Guard 5000.

You can read more about my setup at


When you sit in from of a TS-990S, on of the first things you will are its two displays: a large touch screen to the left hand side of the radio, and a second smaller display in the middle of the radio. You will also be confronted with a plethora of knobs and button covering the face of the radio.

At first blush this all appears to be very overwhelming; however, the more time you spend operating the radio, the more you realise just how logically and well laid out it is. In fact it is not too long before you are rather instinctively able to reach for the desired buttons and knobs.

For example, want to operate split? Simple.

Right below the center display and above the tuning knob are all of the interface elements you need. They are grouped and labeled logically with the two lit buttons on the left indicating RX and TX status for the main VFO and two lits buttons on the right side indicating the same for the sub VFO. In typical operation, the RX and TX button for the main VFO are lit indicating that it is the one actively transmitting adn receiving.

- Press the M->S button immediately to the left of the main VFO RX/TX button to copy the frequency from the main VFO to the sub VFO. (You can avoid this step by having the sub VFO track the main VFO by pressing the tracking button)

- Next press sub VFO's TX button to enable transmission on the sub VFO. Right away the light on the main VFOs TX button will extinquish. A split LED right below the center display will light indicating split operation. The freqency display for the sub VFO will brighten an the one for the main VFO will dim in the secondary display. A delta offset in Khz from the main VFO will also be displayed (depending on how the operator has the secondary display configured). So immediate feedback on the radio status, and all the data you need to operate in split mode are presented.

- Use the sub VFO tuning knob to tune any desired offset (you can also enter offsets via the keypad). As you tune, you will see the delta from the main VFO change to it is easy to dial to the desired offset.

That's it. It takes a lot more describing it than seeing it in action.

I should add that if you have dual speakers connected to the TS-990S, by toggling the sub VFO's RX button you can configure the readio to split the audio from each receiver to each speaker. This is really handy in a pileup to either figure out at which offset the station is listening, or to time your call.

Another feature of the TS-990S that I find particularly useful is that the current passband lo/high cutoff or shift/width and filter effects are displayed on the subdisplay. Specifically, above the VFO frequency display there is a visual representation of the passband. If the notch or band elimination filter is active, you can also visually see which segment of the passband it is effecting. Any adjustments to the shift/width or hi/lo cutoff are visually represented, as are any changes to the notch/bef filter. In addition, there is a visualizion in the passband of the RF spectrum on receive and the transmitted signal spectrum on transmit in the same view. Really handy.

In fact the amount of useful information that is presented on the two displays is outstanding, and after becoming familiar with the radio, you can rapidly gather all salient operating data by just flicking your eyes across the displays.

The main display also has a bandscope and waterfall that I personally find of limited use. More on this in a moment. The primary display (the larger of the two) can be cycled through three main "panadapter modes": Bandscope, Bandscope + Waterfall, and none. In the Bandscope and none modes, the top half of the screen is filled with some really useful data such as current TX and RX equalizer settings, as well as multiple meter data including signal strength, power, swr, etc. In the Bandscope + Waterfall mode the bandscope and waterfall occupy 2/3 of the screen resulting in some of the more useful information being omitted.

Back to the bandscope: I don't think that the resolution is good enough. You can pick out the strongest signals and get a feel for the band, and certainly the touch screen is handly - although too coarse grained. However, it can't hold a candle to a dedicated SDR or the Elecraft P3. As a result, I spent a substantial amount of money to get a QSR1 and run it as panadapter along with HDSDR and SDRMAXV. I now leave the main screen in Bandscope mode as I don't lose any data by having it there and it's handly to see visually where I am on the band. The main display can also show a oscilloscope and audioscope at the push of the RF/AF softkey. Nice features though less useful if you have an SDR.

There are several other functions that the main display is used for including:

- Displaying signal information as well as decoded text in digital modes such as RTTY and PSK.

- Setting operating parameters such as filter width and depth, equalizer settings, and recorded messages.

- Navigating the menu system. Having such a large display makes it really easy to navigate and set menu items, simply because so much information can be displayed allowing for descriptive text that helps avoid having to break open the manual

The bottom line is that it is really nice to have such a big display as it makes operating and configuring the radio a cinch, and I am fond of the fact that many parameters for a given audio element can be rapidly accessed and manipulated without having to dive into the menu system. For example, pressing and holding the RX Equalizer button will open up an edit view in the main display. From this window you can switch to another equalizer preset or adjust specific equalizer frequencies for a preset. Another example is holding down the Band Elimination filter button. This opens up an edit window in the main display where you can change the width and depth of the filter. I should also note that you can even change the press/hold duration of the buttons before the edit window is opened

Turning to the TS-990S' menu system finds it very intuitive and easy to access and configure. I find the menu groupings to be logical making it quite simple to navigate to the desired menu item. I should add, that once I had setup my radio, I seldom find the need to go into the menu to change setting. In fact most of the operational parameters that you'd want to tweak on a dayily basis - such as filter cutoffs, equalizer settings, etc, are either directly accessible via buttons on the front panel or a simple button-press-hold away. Besides this, the radio allows for the user to switch between one of two configuration (although this requires the radio to reboot), as well as saving configurations to USB flash devices.

The TS-990S offers broad onboard support for digital modes such as RTTY and PSK, This includes onboard decoders as well as the ability to connect a USB keyboard for data input. To be honest, I find this of limited use as I use software packages such as DM780, fldigi, and WSJT-X for digital modes. The TS-990S does offer excellent support for these software packages with a Data mode as well as a built-in "soundcard" This means that you do not have to buy and have the clutter of an additional device, such as a signaLink. All you have to so is install the devices drivers provided by Kenwood.


This is another area where I think the TS-990S shines. I'll start by pointing out that there are two CAT I/O ports: a USB port and a "legacy" DB9 port. In this day and age of digital connectivity, this is amazingly useful. At my station, I use the USB port to connect to a Mac Mini running Windows 8 and a host of software such as Ham Radio Deluxe, N1MM, Fldigi, WSJT-X etc. The DB9 port is used by my amplfier and Steppir SDA 100 controller to follow the radio as it changes frequencies and bands

In addition, the radio has both an optical input and output port. It is not uncommon for users to connect the optical output back into the optical input as a hack that will allow them to record on air audio an play it back.

Is it also possible to connect an external keypad with up to eight function keys that can be assigned to broad set of operations. There is an excellent commercial option available from Taylor Made RF in the UK, though it is also quite simple to build one

Network connectivity is provided by a rear RJ45 jack. This serves a couple of purposes: One is to synchronize the radio's clock via a network time server (NTP server), the other is allow remote control of the radio. A word on the latter: Unfortunately, in order to remotely access the TS-990S, you have to have a PC running Kenwoods ARHP software that acts as a relay between the radio and remote operator running Kenwoods ARCP software. I would much rather not require a PC running as well as the TS-990S - something that ICOM has managed to do.

Also featured on the back are both an RX-In and and RX-Out port. I have previously used a Pixel Technologies RF PRO-1B as an RX antenna. More recently I have connected a QSR1 SDR to the radio by splitting the RX-Out signal the SDR and back into the radio via the RX-In Port.

This highlights a notable shortcoming of the TS-990S: there is no IF Port included in the radio. Perhaps Kenwood engineers thought that this was an unecessary feature since the radio has a built-in panadapter. Fair enough I suppose; however, as I mentioned earlier I don't feel that the built-in panadapter is fine grained enough nor configurable enough to be wholly useful- certainly it is no match for my QSR1.

It sadly gets a little worse: There is also a DVI output on the rear panel, and one would think that this is an excellent opportunity to provide a rich panadapter experience on a nice large external monitor - much like the Elecraft P3 with the SVGA option. Unfortunately, all you get when you connect an external display is a mirror of the TS-990S' internal display at a paltry 800x600 resolution . In my opinion this is next to useless.

The radio also support four antennas. The antennas can be setup to automatically switch based on band. I personally only use one of the outputs as I use the antenna switcher on my Palstar antenna tuner


I have found the TS-990S receiver to be more than up to the job. It is extremely pleasant to listen to - especially for long periods of time. In addition the plethora of DSP and filtering options make it a power to with which to pull out weak signals. The radio also includes a secondary receiver that is essentailly the same receiver from the 590S. This is a fine receiver; however, I wish that Kenwood had made the second receiver the duplicate of the first receiver much like the Elecraft K3. This would make diversity receiving much more viable, and it is disappointing that the flagship radio wouldn't have this capability.

In my opinion much has been made about the Sherwood receiver tables and the TS-990S. As has been previously pointed out the tables are sorted by third order dynamic range narrow spaced. This is but one parameter of many that must be considered when purchasing a radio. Bob Sherwood himself will tell you that as long as your receiver's value is above 85dB it is good enough, and other numerous other aspects of the radio should be taken into account with regard the purchase.

The TS-990S has two noise reduction filters. NR1 and NR2. I find NR1 to be absolutely outstand for helping manage band noise. Conversely I find NR2 to be next to useless as it overprocess the signal. Unfortunately the TS-990S' Noise Blanking function leaves something to be desired. It works quite well when there is no signal present above the noise floor; however, one a signal stronger than the noise floor is present, the noise blanker quits working.

For further noise and spurious signal elimination, the radio offers a number of filters including:

- narrow and wide notch filter and an auto-notch filter

- preselector

- 5 Roofing filters at 15kHz, 6kHz, 2.7kHz, 500Hz, and 250Hz. There is a slot for an additional roofing filter, though to date no one has yet produced one. The roofing filter can be manually or automatically selected by long-pressing the Fil/Sel button. This provides access to three RX filters profiles for which the Roofing, IF filter shape and AF filter width can be set. You can also set the Hi and low cutoffs for the passband for each of the three filter profiles.

- Band Elimination Filter that can change bandwidth and attenuation at the IF stage. The user can set the width and depth of the filter by long-pressing the BEF/SEL button. The width can be set from 300-1200Hz in 100Hz steps and the depth can be set from 20-80dB in 20dB steps. I find this to be a really powerful tool and have turned to it quite frequently.

- Two beat cancellers. One desgined to supress weak continous signals, and the other to supress intemittent signals.

Another highly valuable feature is the TS-990S' RX Equalizer. The equalizer function provides ae 6 built-in settings and three user settings. Operators have access to 18 bands to help customize the receive sound to their hearts content. This is really handy when using different speakers e.g. headphone vs external, as well as for different band conditions and operating modes.

Overall the radio makes it a breeze to pull out weak stations and to deal with strong adjacent signals, as well as noise on the band


Besides the excellent audio for which Kenwood is known, the TS-990S also provides some features to help the operator optimize his transmitted signal.

Out of the gate, the radio is capable of outputting 200W that is adjustable via a front plate pot. The main display also presents the current setting so you always know how much power the radio can be outputting at a glance.

Beyond that, in SSB mode, the are up to 3 TX filters available for each of which the high and low cutoff can be specified. So it is possible to have a narrower setup for contesting, a wider setup for rag chewing, and so on.

Additionally, there is a very capable TX Equalizer that mirrors the RX equalizer. The TX Equalizer provides the operator with 6 built-in setting and three user settings. As with the RX Equalizer, operators have access to 18 bands to help customize the receive sound to their hearts content. This makes it possible to customize audio output for different microphones and operating conditions.

The radio also includes a speech processor that compresses audio based on input and output parameters that are adjusted by means of two pots aptly named PROC-IN and PROC-OUT. In addition it is possible to adjust the effect of the processor by selecting either a "hard" or "soft" option. It is also possible to visualize amount of compression in dB on the radio's meters.

I should add that the sub-display will display a spectral graph of TX audio in transmit mode, as well, by pressing the RF/AF button the main display will present an audioscope and oscilloscope displaying the transmitted signal

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