Experimenting with JMLC (Jean-Michel Le Cléac’h) horn loaded beyma tpl 150

I bought a pair of beyma TPL 150 with 4 horns (JMLC expansion) configured in dipole from a friend.

Replacing my raal 70-20xr for something more efficient has been almost impossible so far but gave a shot to those. I’ve not heard the beyma tpl 150 in original configuration before but the JMLC charge had me pull the trigger and purchase them.

The reason I want to replace the raal is not because of sound quality since so fat from 4-5khz up nothing come close to this. The 70-10 are more interesting over 10khz but the 70-20xr make a wonderful job at 4-5khz and up. My main horn are ok up to 5khz after that it’s pushing it since they start to beam quite a bit. The reason is mostly because I want to build a tube amplifier dedicated for the tweeters and the efficiency of the raal would had needed more power then I wanted to build. I use a 2 watts amp for my mid, I don’t want to build a 50 watts  amplifier for the tweeters.

So the raal 210-10 was a huge disappointment, the yamaha 4281 an even bigger one. I can’t stand jbl 2404 2405 and most ribbons. Not an easy task to find a good tweeter that can push 100+ db/w and doesn’t sound harsh or aggressive or dead.

I didn’t expect the horn loaded beyma to be this big so I had to improvise some form of legs until I fix my drivers and rebuild my cabinets. Fortunately I don’t have to make up excuses about horns not to use them in my living room, It’s not about the look for me and frankly I like odd looking speakers in today boring waf approved slim tower market.

I’ve tried some 300 db/oct integration from 1000hz to 5000hz with the deqx and I’m extremely impressed at what those can do. Even at 1000hz they still get lot’s of energy, no harshness and give solid results. The horn seems to do an amazing job a loading them.

When I get time I will post a serie of measurements at 1m and different angles. Nothing scientific. Using my ears I would say at around 8-10khz they start to get slightly directional but nothing really problematic.

For now I’ve settled for 370hz to 3000hz for my mid, 3000hz and up for the jmlc beyma and I’m going to listen to that for some time.

The difference with the raal from 1000-10000hz is big, more energy, realism no harsness and open sounding. Over 10khz I think the raal had a little bit more sparkles but I don’t hear as high in frequency as I use to and this won’t bother me at all. I don’t see any downside going with the beyma except for size. Cymbals sound fantastic and life like, trumpet and female vocals too. Both horns mix really well.

I’m not sure I will keep them dipolar, I will have to compare with and without. I’ve never kept anything dipolar in my room for a long time. I don’t like mixing ways where some are dipolare and some aren’t, it’s messy and even optimized for the listening position they are still trace of reflection distorting the original sound.

I can always keep the back horn and absorb the back wave in it since the original back cover are known to cause some frequency aberration and I don’t want to reinstall those. It’s gonna be my next thing to experiment with those.

I will try to live with this configuration for couple of weeks and if it’s all good will start the process of rebuilding the bass cabinets with double the number of 10″ drivers and passive radiators. Then integrate the tweeters horns in this cabinet and make some form of post for the large JMLC 320hz horn on the side. This should be the final form of my home speakers.

Picssssssssssss

 

Not the horn but just for fun

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Retour à la photographie comme passe temps, mes commentaires sur la panasonic GX85

Après avoir mis mes équipements photos de côtés dans les 2-3 dernières années, j’ai ressorti le tout pour faire un peu de ménage, recharger mes batteries et faire quelques photos.

Mon vieux olympus pen e-pl1 fonctionne toujours mais il commence à être très désuet. Cela a toujours été difficile de faire un focus manuel avec cet appareil. Le pen epl1 était un gateway lorsque j’ai décidé de tout vendre mes équipement full frame canon. Je l’utilise de temps à autre lorsque la caméra du cellulaire ne suffit pas mais sans plus.

Mes objectifs manuel canon fd, mes om mount de olympus et mes nikon F et pre ai sont toujours en bon état. Pas surprenant, c’est indestructible c’est vieux objectifs.

Je me suis décidé à remplacer mon boitier pour un boîtier moderne pouvant utiliser mes vieux objectifs et comme j’avais déjà tous mes adaptateurs pour fd, om mount, pre ai nikon, l’idée de demeurer avec le système micro 4/3 était très tentante. De plus j’adore le format 4/3 que je trouve plus approprié à la photo artistique que du 16:9 par exemple.

Un peu de lecture sur les inter-tubes et les choix se dirigeaient vers un de ces boîtiers :

  • panasonic GX85
  • panasonic G85
  • olympus e-m5 mkii
  • olympus e-m10 mkii

La stabilisation en boitier et mirrorless étaient au top de mes priorités puisque j’utilise beaucoup de vieux objectifs manuels.

J’ai pris le temps de regarder les produits fujitsu et  sony aussi. Le prix, le format et la gamme d’objectif ne m’enchante pas trop et je trouve les fujitsu exagérément retro dans leur look. Sony … j’ai entendu de mauvaise histoires avec leurs boitiers et capteurs ce qui n’aide pas.

L’attrait du format 4/3 et la taille des boîtiers en 4/3 est un grand avantages pour moi. Quelques tests en magasin m’ont aussi montré que la différence entre un petit senseur 4/3 et un aps-c est rendu négligeable pour utilisation web. Évidemment les full frame et format medium sont plus performant mais d’aucun intérêt pour moi maintenant. Le but c’est de l’apporter partout avec moi.

Le GX85 a été mon choix finale suite à une visite chez LL lozeau à Montréal. Cela a été difficle a décider entre le G85 et le GX85, la prise en main est plus moderne sur le G85 et il a quelques avantages en vidéo comme une prise de microphone mais il est aussi pas mal plus encombrant et je ne passe pas des heures à tenir le tout dans mes mains. Esthétiquement j’adore le look “rangefinder” du GX85 et sont format est idéale. Aussi le viewfinder numérique tout en haut à gauche me plait. Cela permet de prendre le pouce gauche pour choisir la zone focus sans retirer son oeil du viewfinder. Très plaisant à manipuler et efficace.

Les avantages du GX85 :

  • stabilisation dans le boîtier 5 axes
  • double stabilisation avec objectifs o.i.s de panasonic (se rapprochant d’un steady glide)
  • beaucoup d’options pour vidéo 4k et photos 4k comparativement à olympus
  • taille très compact et bon feeling de solidité, ca rappel la série pen de olympus
  • écran de haute qualité qui représente bien le résultat final
  • viseur numérique de qualité très utile.
  • exporter les photo via wifi sur cellulaire ou ordinateur (fonctionne bien sur cellulaire mais moins avec les ordinateurs)
  • mode d’aide au focus manuel de panasonic extrêmement efficace
  • gamme d’objectifs superbe de panasonic à prix très raisonnable inclus la stabilisation dans les objectifs
  • bruit a haut iso énormément amélioré versus mon ancien boitier.
  • aucun filtre passe bas réduisant la résolution et couche logiciel pour réduire les effets de moirée efficace.
  • filtres artistiques en jpg utile et nouveau modes noir et blanc haut contraste magnifique

Le G85 et son 12-60 “kit lense” me plaisait bien aussi mais l’appareil devient moins intéressant. Je veux pouvoir entrer le tout dans une poche de manteau avec 1 ou 2 objectifs pancake et ne pas traîner de sac photo. Le 12-60 me semble un bel objectif aussi bien que beaucoup plus gros que le 12-32. Il semblerait qu’il est un peu moins sharp mais 24-120mm c’est une belle plage comme zoom a tout faire.

Le GX85 vient avec un minuscule objectif 12-32mm stabilisé. Je croyais que ce serait un autre objectif à laisser dans la boite d’origine mais, contrairement au 14-42 d’olympus, celui-ci est compacte, plaisant à utiliser, une belle plage d’utilisation du zoom (12 à 64mm équivalent), il est sharp, focus rapide et demande aucune correction (ou elles sont fait directement dans le boitier). 12mm f3.5 stabilisé s’utilise très bien et permet pas mal de latitude pour les photos intérieur. Un des rare kit lense qui vaut amplement le prix demandé lorsqu’ acheté séparément. Ici il est inclus avec le boitier et m’est revenu à 999$ canadien pour l’ensemble, ceci donne un rapport qualité prix incroyable selon moi.

Après avoir jouer un peu avec le 12-32 fourni avec cela m’a convaincu de me commander un panasonic 20mm f1.7 et un 42.5mm f1.7 que je suis a découvrir présentement et je suis aucunement déçus jusqu’à présent. L’ensemble 12-32mm, 20mm f1.7 et 42.5mm f1.7 est extrêmement compacte et complémentaire. Pour le télé j’ai mon vieux vivitar 70-210mm et mon superbe olympus zuiko 135mm manuel.

Je suis encore a découvrir l’appareil et m’habituer avec mais c’est tout un monde comparativement a mon ancien pen epl1 ou même mon 5d mkii niveau optimisation de l’interface utilisateur. Un charme à manipuler.

Jusqu’à présent je ne peux être plus satisfait du résultat.

Panasonic GX85 et objectif vivitar serie 1 70-210mm f3.5, photo prise avec cellulaire.

 

Quelques photos prises en expérimentant avec l’appareil (directement de l’appareil, aucun traitement) :

panasonic gx85 et olympus zuiko om 135mm f3.5

panasonic gx85 et olympus zuiko om 50mm f1.8

panasonic gx85 et olympus zuiko om 50mm f1.8

panasonic gx85 et olympus zuiko om 50mm f1.8

panasonic gx85 et olympus zuiko om 50mm f1.8

panasonic gx85 et olympus zuiko om 50mm f1.8

panasonic gx85 et olympus zuiko om 28mm f2.8

panasonic gx85 et lumix 20mm f1.7 o.i.s

panasonic gx85 et lumix 20mm f1.7

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Petite visite aux Iles de la madeleine en février 2017

Pas chaud ici, mais c’est très beau.

 

Il vente toujours mais c’est très beau tout de même.

 

Petites maisons colorés, décors hivernal

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Returning to a yaesu ft-897d instead of the kenwood ts-2000

I’m getting tired of the intermod my ts-2000 suffer so I got a used ft-879d, added a fp-30 internal power supply, a mh-59a8j which is a fantastic multi fonction mic including volume control and a ldg FTM meter.

I don’t hate the ts-2000 but I have a pager tower close from here and the front-end of the ts-2000 can’t match the ic-7100 or even the ft-897d.

Adding a yaesu ft-897d to the shack

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Icom ic-7100, small shack and ram mount

The icom ic-7100 is a fantastic little radio, specially when you have limited “shack” space. I’ve decided to fix it on my desk using a ram mount I had on hand for a old gps I don’t use anymore.

The kit used is ram mount :

RAM-B-138U (dual mounts and short arm)

RAM-B-201U-C (a long arm to replace the short arm)

You can also simply order parts by parts what you need. My setup use the 1″ ram balls and the radio screw directly under the RAM-B-202.

 

Icom ic-7100 on ram mount

Icom ic-7100 inside the shack on ram mount

Icom ic-7100 over ic-7300 on ram mount

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My sound system as of June 2016

Someone asked me if I was still using the tannoy in my system. Since the beginning of the year I’ve return to horns.

This is the actual setup. It’s not perfect on the aesthetic department and I have to make some decent horns brackets but it play wonderfully. Take note the television is a 70″ for size reference.

IMG_20160107_194837

JMLC 320hz horns over visaton tiw 250 xs

The system consist of :

16-350hz = 4 visaton tiw 250 xs charged with 6 8″ css passive radiator on the back. A pair of icepower 500asp and whatever cable I had on hands.

350-5000hz = A pair of JMLC  (Jean-Michel LeCleach) expansion horns made by Marco Henry (Musique Concrète) using JBL 2441 and radian diaphragms. The amplifier is a icepower 125asx2 and whatever cables I could find.

5000-20khz (and more) = A pair of raal 70-20xr (seen without the front plate in the picture). The amplifier is a icepower 250asx2 and take a guess for the cables.

IMG_20151231_114121

JMLC (Jean-Michel LeCleach) expansion horns made by Marco Henry (Musique Concrète) using JBL 2441 and radian diaphragms

Everything is feed to my DEQX crossover/preamplifier/dac. I usually use linear phase 96db/oct or more for the transition between each drivers and combined with the fact I’m using the horns inside a home, I can get the transitional frequency in the 320hz without problems. It’s nice because the 10″ visaton start to sound a little bit muddy over 350hz. I try to keep a balance between latency and high order filters so It’s not a pain to watch movies and having delay on the sound. Normally I like to keep the latency in the 20-40ms. The DEQX is fantastic for that.

The CSS passive radiators permit to tune the cabs where you position them using external added mass. This is a really nice way to optimize the system without using much corrections from the DEQX. In the end I only use little bit of correction from 16hz to 140hz and after that the horns and tweeters are perfectly fine without it. This speak a lot about the quality of the JMLC expansions and the RAAL tweeters performances.

I’ve been able to compare different raal and so far the 70-20xr are my favorite. I can’t stand the 210-10, the 140-15D are too directional and doesn’t bring anything more for a 2-4khz cut. The 70-10 is nice for 10khz and more, under that … The 70-20xr is really versatile and never sound like a ribbons as the 210-10 tend to do. You can cut the 70-20xr at 2khz if you want with a proper crossover and still get a lot of energy They need more power than you may think so I’ve used my second larger amplifier for them.

I do hook the horns and tweeters directly to the amplifiers. I would do that with tube amplifiers using output transformer or icepower amplifier only. With anything else a capacitor is almost necessary.

My source are either a mac mini with a m-audio audiophile sound card or a chromecast (just replaced the old apple tv) using the TV as a converter (hdmi to toslink) to the dac. 99% of the time the chromecast and spotify (on highest quality setting) is used and it sound perfectly fine.

I’ve installed a old realistic power meter on the low frequency cabs to get an idea of the real power need … and mostly to look at needles moving while listening to music. For most of my listening the power consumption is under 1-2 watts per channel on the visaton. Lound session will peak in the 5-10 watts. My amplifiers are way overkill even for the low frequency sections.

radioshack power meter

The horns are made of rocks dust and epoxy. It similar to concrete.  They weigh a ton and by sitting on top of the low frequency cabs damp everything. I need to build a better rack eventually but for now it works quite well.

This is the best sound I’ve had home and heard from a sound system so far and I’m really happy of been able to enjoy it everyday. It play everything you throw at it with authority and accuracy without ever sounding like cheap horns can. There is no shouting, it’s not in your face except if the music played is supposed to be (ex trumpet, big bands etc) The energy from the speakers is amazing and the realism is there.

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Icom ic-7300 review

I just got rid of my flex 6300 and replace it for a icom ic-7300.

And make a wonderful ic-7100 holder.

The ic-7300 make a wonderful ic-7100 tablet.

If you just want to read my opinions about the icom, just skip the first part talking about the flex radios.

The flexradio life

While I really liked the flex 6300, I didn’t really like the company making them. I feeled like a beta tester who had to pay lot’s of money to participate in the development.

The radio itself started to be usable when the 1.5 version of smartsdr was released and they added some form of noise mitigation. It was still bugged and it still is to the last version I had (1.7.x).

One of flexradio problem is the target market they aim for with their products. It’s not easy to give support for cutting edge sdr technology when most of your clients know very little about computer and mostly nothing about networking. I would not like to be the one trying to solve audio configuration problems, remotely, on a vintage xp computer probably filled with old software, virus etc. on a wifi network provided through the isp modem. That’s probably why most flex owner connect the ethernet cable directly in the computer. It’s probably also one of the reason there is many complaints about the flex maestro right now.

I have to give credit to flex for the community forum on their website and their general support and let’s face it, ham radio operator generally lean on the whiny side, specially the loud ones on the internet.

All in all I like the radio but didn’t like the direction the company is aiming at with the ridiculous (in my opinion) maestro and last couple of software updates. Also smartsdr need to be more customizable for me. I’m gonna miss running the software on a laptop around the house for sure.

The best point about the flex, compared to conventional heterodyne receivers :

  • not been tied to the shack
  • amazing bandscope of 7-14 mhz if you want (but we never use it)
  • selectivity
  • sound quality (can’t stand dsp in many modern radios)
  • running completely on a computer
  • dax, audio conduit possibilities
  • easy to use
  • quick access to everything, no menu etc
  • auto calibration of the radio’s tcxo
  • able to receive as wide as you want or up to 10k (not useful over 5k but it’s there)
  • able to transmit as wide as you want or up to 10k (not my interest but the possibility is there)
  • amazing for digital modes, cw skimmers, other ham radio software
  • new generation does not need lot’s of computer power
  • screen can be as big as your wallet allow it
  • can be used on touchscreen and windows 8.1 0r 10 for nice experience
  • very visual experience where you look at the bands and not listen to A band to see if there is activity

While this is all good there are some point I liked a little bit less with the model I had :

  • been highly dependant of flex for the software development
  • bugged software often released in a hurry then fixed then new bugs etc. but it was getting better
  • need large bandwidth to be used remotely making remote operation erratic at best
  • ridiculously priced, designed, delayed flex maestro and the idea that then need to develop for nostalgic knob lovers
  • The complexity of the radio and parts used make it a “call for RMA and return it” if something goes wrong
  • not able to talk with my antenna tuner directly

Enter the new icom ic-7300

While the flex still have high value (when a new generation is released the price of the previous ones tend to tank) I decided to get rid of it and got an icom ic-7300. I didn’t want to have to deal with flex for an out of warranty repair in the future or try to sell it when they close the doors or bring a new generation of radio. I kind of expect the maestro to be a fiasco even if I hope it’s not.

After couple of days, I don’t see the ic-7300 as a flex or anan replacement or competitor AT ALL but I never expected it to be. While I highly enjoy the radio and it answer 110% to my need I have to be honest the ic-7300 is more a heterodyne radio replacement.

For someone without sdr exposition maybe it could be considered as a full fledged sdr radio but I don’t agree with that. It’s a little of both, well made and integrated (unlike the flex maestro i’ve seen operate in videos on youtube) really enjoyable to use radio. It only have 1 mhz of bandwidth but it is enough for 99.9% of my use since I rarely even used 1mhz on my flex-6300. It does give the operator a good visual experience of the bands while having the best audio quality i’ve heard on an icom radio so far.

With the ic-7300 you can run the radio from the computer with icom rs-ba1 (with an update) and get a bandscope but it’s not even a tiny bit close to the experience of doing it with a flex radio. The usb port in the ic-7300 still run at serial com port speed so what you have is a little bit slow and laggish. The good point of it is the low bandwidth needed will make it easy to use in remote operation (have not tried it yet).

Having played with the icom ic-7600, the 756 pro iii etc, the 7300 is in a league of it’s own making them look like old and slow limited technology. The ic-7300 can replace my flex-6300 where a ic-7600 wouldn’t since i’ve been exposed to a good sdr radio. Now this is for my use, in my shack and on my antenna. I’m not a contester (except once a year), it doesn’t interest me, and don’t do digital modes often. I have to try the digital modes soon and see if my hamradiodeluxe licence work with it.

All in all, using the radio is a such a joy. The screen is fantastic and the touchscreen operation is another step ahead of the ic-7100 (also own) and make the yaesu ft-991 and ftm-400 (also own) look really bad. The touchscreen operation and menu are optimised, quick and easy to use. It’s exactly the opposite with the yaesu ft-991 and ftm-400dr where everything seems to have been designed by someone who never touched a smartphone in his entire life.

I really give credit to icom bringing this radio to market. Not many company would cannibalize their sales of higher-end radio bringing a new technology to market like that. The radio feels ready to be used out of the box and not a work in progress like flex does with their customers. I can see peoples waiting for the next icom release if they are in the market for a ic-7600 7700 etc or simply getting the ic-7300. I would not buy anything else from icom presently knowing how good is this little radio for the price.

I predict this radio will sell really well and be liked by their owner. I only have two days of play time on it and will post a follow up later.

So far, for my use, it’s like a largely improved ic-7600 for almost half the price (in Canadian pesos) and while it’s not a flex or anan replacement, after owning one for a year, it’s not a necessity for me and this radio answer to 110% of my need.

My shack is quite small so I have nothing against smaller radio giving me big radio performance since it mean I can fit more radio on a small desk.

I can’t wait for the next ic-7650, or whatever the call it, from icom and what could be the answer from kenwood or yaesu.

Here is the shack in june 2016

Replacing the flex-6300 for a icom ic-7300

Replacing the flex-6300 for a icom ic-7300 in va2sm shack (june 2016)

The good points of the icom ic-7300 :

  • perfect size for a small shack but keeping it fully usable
  • nice set of function easily accessible from the knobs, nice set of quick setting on the function knob and menu really easy to use and configure
  • the UI was optimized contrarily to stupid yaesu touchscreen radios.
  • wonderful little screen that is quick, easy to read, good response to touch and good brightness and contrast
  • aesthetically pleasing
  • will please the knob crowd with a little sense of adventure
  • works with icom tuners, microphones etc
  • sense of continuity in the menu, filter setting, memory operation, nb nr notch etc from radio to radio making it easy to use if you played with anything from icom in the last 15 years
  • amazing audio quality for an icom radio, I don’t hear the usual icom dsp digital harshness or tiring hissing noise like in a ic-7000
  • transmit audio seems really good even if limited to 2.8khz of bandwidth (seen negative aspect of the radio)
  • quite ok internal speaker for the size of the radio, sound from the speaker output is a lot better on larger speakers
  • easy to update and manage with sd card
  • up to 1mhz of bandscope that is highly configurable with an all in one sdr radio
  • smooth vfo (should we still call this a vfo?) that is pleasing to operate
  • while the fan can be noisy at full speed, the speed control seems well though so it won’t spin at all receiving
  • the auto tune in cw is really nice

Some bad points of the icom ic-7300 :

  • No backlight for the buttons (that is really stupid)
  • limited to 3.6khz in receive (it’s a sdr, don’t limit it like that)
  • limited to 2.8khz in transmit (it’s a sdr, don’t limit it like that)
  • uncomfortable to hold and plain original microphone
  • no way to transfer sdr data to the computer for second receiver
  • voluntarily limited by icom to be able to sell the next sdr they will release
  • one antenna jack (see previous point)
  • no rx antenna
  • bandscope limit in fixed mode don’t switch when you reach one extremity
  • not as fast to operate as a flex radio because of the lack of mouse to select the frequency to listen to
  • rs-ba1 could be better considering they sell this for 100$ us
  • should have an automatic tcxo calibration like flex
  • when  you push the power button quickly it take a screen snapshot instead of closing the radio, you need to hold power instead
  • the noise blanker doesn’t remove visually the noise from the scope like the wnb on a flex, it would be nice
  • the auto tune in ssb would be nice

73, VA2SM

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Kenwood ts-2000 noisy fan replacement.

So I got a kenwood ts-2000 ham radio transceiver. It’s a decent radio but it does have some weak points. The deftness in hf is one, the second vfo is prone to intermod and the lack of high frequency in the sound etc. All in all it’s still a useful addition to a shack.

The worst part about it, for me, is the noisy cheap fan used inside the radio and the poor logic used to control it. They used a 80mm X 80mm X 15mm designed for noise and a little bit of airflow.

So I tried the 100 ohms resistor trick I’ve read about on the internet and it helped to prevent the stupid fan to start blasting full speed every 30min just doing RX. It work but even at “low speed” the fan is noisy and it doesn’t change the high speed vacuum cleaner noise.

Somewhere on the intertubes someone said they fitted a NOCTUA NF-A8 so I went to amazon.ca and ordered a NF-A8 FLX. There are couple of variation of those fans but they all seems to be 80mm X 80mm X 25mm.

Here is the original small plate propeller fan that is sitting just behind the radio front panel and making all this noise.

kenwood ts-2000 original boxer fan

kenwood ts-2000 original boxer fan

After opening the radio I realised something was off.  The Noctua seems a little bigger than the original one. I didn’t know at this point the original one was only 15mm thick.

new Noctua NF-A8 FLX

new Noctua NF-A8 FLX


Side by side

kenwood ts-2000 noctua fan vs original

kenwood ts-2000 noctua fan vs original

 

I went ahead and tried to fit it anyway so I removed the old one, cut the cable halfway to reuse it (as a connector) and then installed the 100ohms resistor used to provide a low speed to the fan preventing it to revert to high speed for no reasons.

kenwood ts-2000 original fan removed

kenwood ts-2000 original fan removed

 

Then I proceed to find a way to fit the new fan using the original holes. I couldn’t find locally longer m3 screws.

kenwood ts-2000 replacement fan need longer screws

kenwood ts-2000 replacement fan need longer screws

So went for next best thing … shorter m3 screws and small screw driver.

kenwood ts-2000 noctua fixed

kenwood ts-2000 noctua fixed

 

I had to move the fan cable off it’s guide and remove the fan anti-vibration end pieces. This way the cable would go directly inside the radio and the fan would be a tight fit to the aluminum frame. The yellow cable was cut (no need for speed monitoring), the red cable on the + of the original connector and the black cable going to the 100 ohms resistor and then to the – of the original cable. The 100 ohms resistor is just fixed to a ground using a screw on the pcb.

kenwood ts-2000 cabling the new noctua fan with 100 ohms resistor

kenwood ts-2000 cabling the new noctua fan with 100 ohms resistor

Now will it fit behind the face plate of the radio ??? YES !

kenwood ts-2000 Noctua NF-A8 FLX fan installed

kenwood ts-2000 Noctua NF-A8 FLX fan installed

it’s a tight fit but if you take care replacing the cable feeding the front screen it’s not a problem at all.

 

And the radio is back in the shack

kenwood ts-2000 va2sm shack

kenwood ts-2000 va2sm shack

The noise from the lowest fan speed (because of the 100 ohms resistor) is lower than the original fan and also provide more airflow. This prevent the fan to get off on high speed as often as originally. If you like a low noise floor in you shack like my, this is an interesting mod to do. I’m pretty sure the 100 ohms resistor could be made 120 ohms with this fan, maybe I will try it eventually.

I paid 20$ canadian for the fan so this is a cheap mod.

73, VA2SM

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Problem with a diamond antenna x510hdm x510 x510n vhf uhf

Sooooooo

My diamond antenna x510 hdm (x510hdm), that was selected to handle my 160 watts amplifier, stopped working last week-end.

I suspected that a capacitor blew since it happened while I was transmitting. I ordered the “high power” diamond antenna so this wouldn’t happen. It happened. The swr where it happen would read at 1.3 1.4 swr normally. The antenna is rated to 330 watts and it’s probably PEP with 1.1 swr. If the swr raise the capacitors inside doesn’t handle enough voltages to get close to the 330 watts rated.

I contacted (call, message, call, message, email, call, message …) radioworld, where I got the antenna not long ago, and they couldn’t help me and asked that I deal with the diamond antenna north america distributor. After many calls and couple email I gave up on trying to get any return from them in a reasonable time. Diamond antenna america is a division of rf parts company and I’ve had a very bad experience dealing with them in the past (support to Canadian market).

I took my chance with diamond antenna Japan and got quick reply to my emails (couple hours delay) and they gave me confirmation of the value used in the x510hdm since it’s different than a x510n or x510.

They also told me some antenna would come with 1000v caps and others with 500v caps. I’m not sure which one I have but my “not exploded” capacitors where 3pf and 11pf. The missing value was in serie with the 11pf and they confirmed me it was a 12pf 1000v that should go there. I got the confirmation from them edited on a picture. I’m adding the picture directly here if can be of future help for someone else.

I will try to source the part locally and replace it, if I don’t post any follow up it’s because everything went well.

BTW did you know a X510 antenna is resonant in the 220mhz band ? I’m using mine as a triband antenna to reach 220 mhz repeater up to 30-50 miles without any problems.

 

73, VA2SM

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Le Québec, ou rouler en moto est aussi agréable que s’entrer une fourchette dans un oeil.

J’ai vendu ma moto a regret le printemps dernier du aux séquelles d’un accident de la route avec chauffard (qui ne devrait pas avoir droit de circuler et n’a probablement jamais passer de permis de conduire de ça vie).

Nos policiers, notre gouvernement et la saaq n’ont simplement aucun concept de sécurité routière. Sur la route c’est de plus en plus le chaos et les policiers ne donne pas l’example en ne suivant pas, eux même, le code de sécurité. Ils ont oublié l’existence des clignotant, que l’on doit arrêter sur une jaune ou une rouge, que la limite de 70 ne veut pas dire 120 alors qu’ils ne sont pas sur une urgence. La seule chose qui les préoccupe, c’est de collecter des taxes cacher comme des peureux derrière un buissons. Ca, “c’est facile et efficace”.

Si vous êtes un policier et que vous devez dépasser une voiture par la droite, sur l’autoroute, cela devrait allumer une lumière. Vous devriez peut-être faire de la sensibilisation envers l’automobiliste qui prend inutilement la voie de gauche (voie de dépassement) au lieu de de dépasser illégalement par la droite. On voit cela des patrouilleurs de la SQ régulièrement (principalement a Montréal sur la 25 et décarie), ils roule à 110-120 dans les zones de 70, zig zag sans clignotant et pourtant ne sont pas sur une urgence. Maudit bel example.

Près de chez moi les policiers se cache juste après une intersection pour prendre les gens à rouler 71 dans un grand boulevard de 50km/h. Devant eux des automobilistes passe sur la rouge, tourne à droite sur une interdiction ou continue tout droit dans une voie pour tourner. Cela à chaque cycle de lumière mais non, ils reste cacher a attendre un juteux 70km/h.

Ce n’est certainement pas caché derrière un buisson que l’on aider les gens à penser respecter le code de la sécurité routière et respecter les autres sur la route. Les campagnes de sécurité ne parle de deux choses, la vitesse et l’alcool. Les gens se coupe, ne respect pas la voie de gauche, pas de clignotant, ne regarde pas les angle mort etc mais tant qu’il ne dépasse pas de plus de 20km/h c’est tout beau.

Se faire parler de sécurité routière par la saaq et nos policiers c’est de l’hypocrisie pur et simple. Un méchant ménage est du et ce n’est certainement pas en alternant entre 2 gouvernement perdus et légèrement attardé que les choses vont avancés.

Je vous invite a lire ceci, cela illustre bien ou nous en somme. Il semblerait qu’écoeurer les touristes pour être certains qu’il ne viennent plus dépenser au Québec est une bonne idée dans l’économie actuelle. Je comprend le principe de cylindré minimale pour l’autoroute mais il y a une limite a écoeurer les gens, ils l’ont largement franchi dans cette situation.

Canada Moto GuideEd’s March across Canada – Quebec – Canada Moto GuideEd and Rach escape Ontario’s ‘overly concerned’ drivers only to come head to head with Quebec’s authoritarian cops.
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