ARLA/CLUSTER: Kenwood TS-590

Quarta-Feira, 23 de Fevereiro de 2011 - 19:17:49 WET

Concordo com o Paulo Santos.O equipamento a nível de filtros é muito bom,
menu é fácil de manusear. O áudio recebido do TS590 faz me lembrar o
TS950SDX.
Mesmo com o mic original obtém-se um bom áudio em TX. O resto vai se
descobrindo aos poucos.

73 de Hugo Barata CT2HMX

PLC: O Fim da Onda Curta??
--------------------------------------------------------------------------------------------------------------------------------------------------

2011/2/22 Paulo Santos <ct2ivh  hotmail.com>

>  Boas Tardes
>
> Posso dizer que do pouco que ainda estudei do equipamento, posso dizer que
> é fenomenal.
>
> Falta ajustar o audio do meu Heil Pro-set Plus e ligar o radio ao PC com o
> programa disponibilizado pela Kenwood.
>
> Em breve volto a adiantar mais informações. A nivel de filtros é mesmo
> bommmmmmm.
>
> Vy 73.
>
> *CT2IVH Paulo Santos Locator: IN50sk Iota Hunter Good Hunting........
> *WWW.YOUTUBE.COM/CT2IVH <http://www.youtube.com/CT2IVH>
>
>
>
>
> ------------------------------
> From: joao.a.costa  ctt.pt
> To: cluster  radio-amador.net
> Date: Mon, 21 Feb 2011 16:06:28 +0000
> Subject: ARLA/CLUSTER: Kenwood TS-590
>
>
>
>
>
>
> *Executive Summary. Its the best all round performance orientated HF radio
> available on the market at an affordable price.
>
> *First let me say that I approach reviews from 2 angles. The first angle
> is the ultimate raw performance and the 2nd is how much fun the radio is to
> use.
>
> This second angle of how you like the radios ergonomics and its general
> appeal. The other important aspect of how well laid out the controls are,
> are just as important as the ultimate receiver performance. In a general
> purpose station radio you should ideally have all these aspects correct. In
> this regard the TS590S is a winner.
>
> I own many radios. The 3 that are on my main operating desk are the K3,
> FT5000 and IC7700. Sold recently were the Orion2 and Icom7800.
>
> The performance angle.
>
> There is doubt that Kenwood has delivered a wonderful high performance
> radio. On the bands where contest receiver performance counts it gets a 5/5.
> I could not detect a single of case IMD dynamic range problems on a band
> like 40 meters using a big 3 element Yagi. Yet on the IC7700 these problems
> could be detected and the receiver
> was bordering on collapsing. The TS590s has excellent filters and the
> roofing filters are better than the Icom 7700(Doooh) and so close to the K3
> that it hardly matters. The K3's narrow roofing filters of 1.8khz and lower
> are impressive. For most operators the difference would not matter. For
> economy of performance the TS590S is a real winner and a bargain. You would
> be hard pressed to justify a radio like a IC7700 and IC7800 which basically
> only has 200 watts and a bandscope with a less than impressive receiver
> performance when compared to the TS590s operating in the down conversion
> mode. Up conversion radios will never beat down conversion radios any time
> soon!
>
> The TS590S and FT5000.
>
> The TS590S has better image rejection performance than the FT5000 and
> sounds just as good. There was not a single time on the air where my new
> FT5000 could embarrass the TS590S. They both sound just as good.
>
> The FT5000 is a radio with a superb transmitter that has the best processed
> audio that I have encountered. The transmitter with its 200 watt PA has
> world class PA performance with the best available TX IMD performance. If
> you want to run a clean signal the YAesu FT5000 is a winner in this area of
> TX IMD.
>
> The TS590S in the 160meter CW contest was a winner and I had no trouble
> switching from the FT5000 and the TS590S running stations. Never once did I
> lament that I wished that the TS590S has this or that control or feature. It
> is a professional radio in a small box that gets the job done. It does have
> that annoying birdie on 160meters!
>
> The TS590S and the K3.
>
> Well the TS590s has much better ergonomics and construction. It also has a
> much better sounding receiver than the K3. The K3 has a noisy receiver in
> comparison to the TS590S. The TS590S also has less INBAND RX IMD so sounds
> much better and warmer. Ergonomics on the K3 stinks and having dedicated
> marked band and mode switches makes the
> TS590S a real winner. Tuning around the bands or bandhopping was a joy and
> so easy on the TS590S, something that turns into mental gymnastics with the
> the K3!
>
> I also found the Kenwood’s noise blankers able to deal with a broader range
> of typical noise better than the K3. The K3's blankers both analog and
> digital seem to need a very specific noise signature for them to work. On
> the most effective settings they always introduce distortion. You can use
> the TS590S noise blanker on moderate
> settings without excessive distortion. I could for example blank an
> electric fence and leave the blanker engaged on the TS590s without problems.
> On the K3 strong signals even when lightly set caused distortion.
>
> The K3 does have features that the TS590S does not have and is an
> incredible bargain for features and performance. The TS590S has better
> transmitter IMD performance than the K3 however the TS590S does generate ALC
> splatter. This problem seems to be a design problem in every Japanese radio;
> even my IC7700 and IC7800 had ALC
> overshoot issues. If you run a modern tetrode amplifier like a ACOM2000 do
> not be surprised if you are told that you are splattering because you
> probably are. This ALC overshoot so common on many JA causes a lot of
> splatter with tetrode amps. You need to very carefully monitor the TS590s
> ALC, no ALC action is better! The K3 despite its poor TX IMD has a properly
> designed ALC that does not cause splatter problems on TX.
>
>
> The K3's receiver when compared to the TS590S is very weak in none dynamic
> range areas. The amount of birdies in the K3 that can be noticed is very
> high. Birdies on the K3's receiver especially on the high bands and the warc
> bands are terrible. It’s almost like Elecraft have parked all the birdies on
> the WARC bands. 12 meters on the K3 is full of birdies. The TS590S has the
> advantage here because of the up conversion process on the higher bands
> where ultimate performance hardly matters.
>
> The real surprise for me was this. I have a nearby CB operator who runs
> illegal power that splatters right into meters with his Class C amplifier. I
> thought the K3 with its tight bandpass filters would be the winner, NO! The
> TS590S for whatever reason seems to reject this out of band CB splatter much
> better. I have no explanation for this. However I am happy. There seems to
> be something in the K3s receiver that makes it more susceptible to the CB 27
> MHz transmissions.
>
> The TS590S has a soft warmer sounding receiver that does not sound so harsh
> on RX like the K3. The TS590S sounds like the Icom 7700/7800 Radios soft and
> warm. Don’t know what it is about the K3 that makes its sounds like someone
> is hack sawing off your right ear while receiving. This is especially so
> when the bands have static on them.
>
> The TS590S in up conversion is a great general purpose shortwave receiver
> when tuning around.
>
> TS590S is a winner in terms of raw performance and value for money.
>
> Many hams probably have old legendary Kenwood radios like the TS430S,
> TS440s and TS450s. Millions of these general purpose radios were sold. If
> you have these radios and are considering the TS590S, it would be the
> perfect radio for you. Despite these old Kenwood’s legendary performance and
> reliability, they are like old antiques compared to a Ferrari. The TS590S is
> a Ferrari like performing radio that comes at a bargain price. The TS590S is
> not your grandfather’s radio! So if you want to clean your shack of all the
> failing rubbish with no parts availability get the TS590S. You cannot buy at
> this moment such a high performance radio for the price. Heck even the
> expensive IC7700 and IC7800 have crap receiver performance numbers when you
> compare it to the TS590S. These two expensive Icoms don’t even have a better
> transmitter performance their IMD performance is so average and equal to the
> TS590S and no better! For the price you pay for the Icoms you would expect
> better performance, yes?
>
> The ergonomics of the TS590S are very good for such a compact radio. The 3
> things that ham does when hamming, spin the VFO knob, use the mode switch,
> work split and use the band switch to change bands. You do this millions of
> times. If a radio can’t do these basic things well and without thinking you
> don’t have much of a radio.
>
> The TS590S is a winner in this regard. Its ergonomics are fine and does the
> basics fine without causing heartburn or needing to pull a manual out. The
> K3 by comparison is an ergonomic disaster. The tuning on the shortwave bands
> messes up your ham band tuning, you can’t do band splits on VFOA VFOB. I
> always like having VFOB on a different band and switching quickly between
> bands. Cant do this on the K3. You can on all the old great Kenwood radios
> and most other brands you can do this, not on the K3. The K3 is an
> ergonomic mess when tuning and band jumping. Having to cycle through every
> band or mode is a PITA!!! Yeah sure there are shortcuts on the K3, well I
> don’t want to use shortcuts I want to use dedicated controls that are
> clearly labeled on the panel. Same goes for split the TS590S is a winner.
> The K3 is awful awkward radio to use on
> split. Even using an old IC735 you can work split in more efficient manner
> than the K3. Oh, did I mention proper bandstacking registers, Kenwood worked
> this out decades ago not other manufacturers!
>
> TS590s is nicely balanced well thought out radio that does not give you
> heartburn or make you feel like you need a radio with more knobs like you
> feel when using the K3. The K3 gives me heartburn every time I use it its so
> frustrating how poorly laid out the front panel is, and how poor the general
> ergonomics are. This is not to say that the TS590S is the worlds best
> ergonomic radio, it’s just a whole lot better than the K3. I can drop you in
> front of a TS590S and you will be using it without using the manual. Try
> that with a K3!
>
> TS590S winner in general ergonomics!
>
> I use a lot of wire antennas with balanced tuners at a portable holiday
> location with a small amplifier. I used to use the K3 for this with a huge
> balanced antenna tuner. If I used my K3 with tuner on the shelf above it
> bringing the balanced and end fed wires into the tuner the K3 would have a
> huge spasm and freeze up. I had to constantly pull the power and do a reset.
> The K3 would also drive the amplifier very badly with RF coming off the
> feeders. I basically had to stop using open wire antennas and high power
> with my K3; it was sensitive to RF on TX and lacked RF immunity.
>
> Fast.... Forward...... others radios including the IC7700 and TS590S.
> Wellll ermmm the Ft5000 was OK; The IC7700 threw a fit and died on 2
> occasions. Icom was not sure if it was "RF or Static" and tried blaming me
> because their radio design was so terrible and sensitive because the radio
> blew up because of RF indigestion. OMG can you believe that a radio dying
> because of static and RF!!! OMG hams get rid of your RF it will hurt the
> radio, static too!! Needless to say the Icoms cost me close to another
> TS590S in repair bill costs! Anyway the TS590S plugged right in and worked
> flawlessly. 1kw into the balanced coupler above the radio, full pep, no
> drive issues and the radios not freaking out.
>
> Well what more can I say and think. WOW I did not need ferrite, call in a
> RF ground expert or get rid of my antique electric wire aerials, or hear
> excuses of why a radio cant cope with Rf floating around, AMAZING. Wonder
> why a TS590S can handle this situation and other radios can’t? I must just
> hate those other brands eh? Unfortunately not, look inside the K3 and
> compare it to the construction of the TS590S. Look particular at the
> shielding around the electronics and look at how the PA is constructed. You
> ham right? And you know about shielding and bypassing? Why is this missing
> in such expensive radios that are supposed to be the best? Why cant a Icom
> IC7700 handle RF and static fields? ask Icom that question. TS590S is winner
> in not being RF sensitive and well constructed and shielded.
>
> Just to be sure I parked a SGC230 on top of the TS590s plugged in a random
> bit of wire ran off a short ground current return and tuned on all bands,
> click, clack buzz prrrr worked perfectly and no rf in the audio, even got a
> RF bite and the radio did not blow up or go berserk. Cant do this on the K3,
> and well on the Icom IC7700 I did not want to try this with this expensive
> radio and blow it up a 3rd time! One repair and shipping bill for a Icom
> 7700 will make you lock it it up in vault for life with your grandfathers
> war medals and gold watches!
>
> When I got the second receiver into the K3 the birdies drove me nuts.
> Elecraft support suggested moving cables a bit here and there to move and
> try and reduce the level of the birdies, say what! Is RF shielding still a
> patented process or what? The K3's second receiver causes birdies no wonder
> it cant handle the RF off open
> wire feeders! I am impressed with the TS590S general RF immunity, its well
> designed.
>
> TS590S Extras features such as Skycommand, REMOTE HF and voice announcement
> are all enjoyable bonuses.
>
> What I don’t like on the TS590S.
>
> The receiver seems too sensitive to pulses like electric fence noise and
> every electric device that switches on and off in your house. It causes
> clicks as it should.
>
> The K3’s feature of allowing the AGC to reject these pulses is great. In
> fact the K3 is only radio which I don’t have to use a noise blanker on all
> the time to reject electric fence pulses. The IComs and Yaesu also have this
> problem. The K3 is winner in this area.
>
> The TS590S has a 12 volt PA with less than spectacular high order TX IMD
> suppression. Why Kenwood did not use high voltage FETS is beyond me. Such a
> high performance radio like the TS590S needs a PA with less TX IMD not a CB
> radio PA like in most rigs. Its 2 tone IMD numbers are better than the K3
> however the TS590S ALC overshoot problem causes IMD and splatter. The
> Japanese manufacturers need to clean up their act in this area and the
> TS590S is poor in this area which is a shame.
>
> No IF output for a bandscope. These days this is a must, why Kenwood
> crippled the radio by not providing this is a big question.
>
> TXCO should not be an option these days. If the radio had the TXCO and IF
> output it would have been a complete radio.
>
> The S-meter is not calibrated and is the usual flickering guess meter worth
> nothing! K3 is a winner in this area.
>
>
> The TS590S is a great all round radio that packs performance and features.
> A lot of thought and features have been put into this radio, this combined
> with its excellent ergonomics and constructions make it a best buy bargain
> in ham radios at the moment. Its key attribute is its performance at a
> bargain price that can’t really
> be matched by other brands. I give it 5/5 despite it only deserving a 4/5
> because it’s less than impressive TX IMD performance.
>
> The K3 is a perfect comparison with which to compare the TS590S with. If I
> wanted the ultimate big box radio that delivers K3 performance, I would
> select the FT5000 Which is my main contesting radio. The TS590S sits on top
> of the FT5000 and is almost an equal. If Elecraft ever produced a K4 with
> better ergonomics and front panel I might look at it again as my main
> station radio. For the moment between the FT5000 and TS590S I have
> everything that I need without question. I just can’t get into the K3
> because of all the issues that I have with its ergonomics. I turn it on now
> and then to check the performance of other radios. Since I have the TS590S I
> hardly use my K3! The K3 is a mission specialist radio that you will either
> love or hate, I mostly hate its ergonomics. It does pack features and
> performance thats hard too equal. Since the TS590S has come along, the K3 is
> only a nose in front, you would feel like a happy loser with a TS590S in
> front of you because they so close.
>
> If Yaesu produced a version of the TS590S that is laid out like a FT950 and
> had equal or better performance it would be runaway success. I am generally
> not a fan of small radios. I would like to see Kenwood producing radios like
> the old TS930S and TS940S. These radios had good receivers, good layout,
> well designed PA's and built in power supplies. The FT950 is reminder of
> these radios, but unfortunately the FT950's performance sucks. Anyway more
> dreams!
>
> TS590S is a small radio performance wonder box that would please the most
> fastidious HF radio user,,, go get it you wont be disappointed! Thanks
> Kenwood for a great radio.
>
>
> --
> António Matias
>
> CT1FFU - CR5A
>
> www.dxpatrol.com
>
> QRV: HF, 6m, 4m,2m,70cm,23cm
> SSB, CW, MGM
> DX, EME, Contest,Sat.
>
> Fonte: ct-comunicacoes-e-tecnologias  googlegroups.com *Em nome de *Antonio
> Matias
>
>
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