ARLA/CLUSTER: ICOM IC-7300 teste em Timor Leste

[João Costa > CT1FBF]

Em 13/03/2016 20:51, "Silvio Leiria" <silvioleiria  netcabo.pt> escreveu:
>
>  Alô Zé Albuquerque, ora aí vai um "review" sobre um excelente rádio:
>
> From:
>  dowminimax  gmail.com [ic-7300] (ic-7300  yahoogroups.com)
> Sent:
> Sunday, March 13, 2016 7:12:55 PM
> To:
> ic-7300  yahoogroups.com
>
>
>
> From http://www.eham.net/ehamforum/smf/index.php/topic,106024.45.html
>
>
>
> With all the misleading information I am reading here I thought it was
time to chime in with some real-world, actual field reporting on the 7300.
>
> I picked up one of these cute 7300's in Tokyo in mid-January ($120,000
YEN, approx US$980 at the time).  I just got through using it on a 10-day
DXpedition in Timor-Leste as 4W/N1YC. This was a true 'blind-date'.  I
wouldn't normally take an untested, 1st production, low-serial number rig
on a DXpedition in a less than ideal environment, but I figured here was my
chance to put a brand new radio through the paces.  As a seasoned user of
many radios (SDR's included) and 250,000 QSO's in the log from my home QTH
of 9V1YC,  I feel I'm pretty well qualified to give this a try.  (Certainly
more than most of the complainers I am reading on this forum, some of whom
haven't even touched a 7300 yet).
>
> NOTE:  The 7300 is also not a contest-grade radio with sub-receivers,
external RX antenna inputs and other useful features, so its not fair to
measure it against a K3 or other high-end radio. This mini-review is just
letting you know how Icom's new SDR performed in a tough DXpedition
environment, and how it felt to me.
>
> The setup was as follows:  We had two stations, side-by-side, running
full tilt for 10 days. The second station was a K2, and we also had another
K2 as a backup rig just in case the 7300 turned out to be a disaster.  Each
station had a Tokyo Hy-Power HL-550fx running 500W and a set of Dunestar
bandpass filters. Both stations were using Hustler 6BTV's with 60 radials
each.   We were at a nice location facing North - about 50m from the high
tide mark, and 30m up on a hillside.   (We've used this spot on two
previous trips, and clocked up about 35,000 QSOs on 2014 and 2015).
>
> Our shack location was on a covered outdoor deck facing the sea, in a
high-humidity, high-dust, high electrical noise area with sea-spray, wind
and rain thrown in for good measure.  Just about as tough as it gets.  The
previous trips used a K2 and a TS-590, but this time we swapped out the
TS-590 for the 7300, and brought an extra K2 as both a backup (and an a A-B
comparison).  We knew the K2 could take this nasty environment, but we had
no idea how the 7300 would perform.
>
> The 7300 was an immense pleasure to operate.  I mean that in every way. I
was expecting the worst but this little radio was a sheer joy to operate.
The receiver was simply beautiful - especially to my ears with are normally
used to the sound of a K3, IC-7600 or TS-590 in a contest.  Pileups were
smooth and easy to run at high rate.  The 7300 definitely has amazing
ears.  On the few times I swapped it out for the K2 as a comparison I
noticed that the 7300 was more sensitive than the K2, but nothing that was
heard on one radio couldn't be copied on the other. In fact, I felt the
7300 had the edge at times - especially on 10/12 and 15m.  For the record,
I do love the my old analog K2, and for extended periods of non-stop pileup
shoveling I feel the K2 is probably gentler on the ears.  (Any K2 owner
will know what I am talking about).
>
> We did have some inter-station interference from time to time (as we
always do on these trips). The first thing we did when that happened was
swap out the 7300 to the backup K2, just to make sure it wasn't the 7300
which was dirty.  No major difference was noted on any band, so we
concluded the 7300's TX was not the culprit.
>
> The filters were as good or better as anything I've used on other
high-end Icoms, and the settings are easy to manage through the
touch-screen menus. Any 7600/7700/7800 user will have no trouble using this
rig out of the box.  No manual required.  The touch screen was something
new to me, but after a while I found myself really enjoying it compared to
a regular radio. Especially the Elecraft push-and hold kind of situation
which I hate.
>
> The scope is not something I really use when behind a pileup, but I did
play with it every now and then when the rate dropped and I was bored.  Its
extremely sharp, but that's to be expected from an SDR.
>
> The real stand-out feature of the 7300 is the noise blanker.  Being in a
poor, 3rd-world country with badly maintained vehicles and terrible power
distribution means there was noise all over the place.  Really bad, S9 crap
almost all the time.  The 7300's noise blanker cut through just about
everything that was thrown at it, and I was able to clock over 8000 QSO's
in 9 days.  I even managed to run the last few hours of the ARRL DX contest
without any problems (which is no small feat from 9000 miles away and a
crummy Hustler 6BTV).    I have never heard a noise blanker this good, and
on that point it left the K2 in the dust. Literally.  (yes, I know the K2
has a pathetic noise blanker.....)
>
> BTW - I noticed none of the complaints "ZENKI" is talking about on this
forum, so perhaps his 7300 is from a different batch?  Not sure where he
got his test rig from.  Anyway, for the record I noticed no PA power
spikes, no spurs, no ALC overshoots, no IMD problems, and the S-meter was
bang on target when compared to my TS-590, IC-7600 and two different K2s
back here at home.
>
> The rig was run at 90W all the time, and the PA temperature reading never
really moved upward the entire trip.  The heat sink felt cool whenever I
touched it. The 7300 was also coated in dust and sea-spray almost non-stop,
and had to be wiped down almost every hour.  At times the touch-screen was
so coated with crud that I could write my initials on it.   None of these
external annoyances interfered with the rig's operation, and it never
missed a beat.
>
> Again, this review is not meant to compare the 7300 against the K2 since
the two are entirely different radios, and that's an apples and oranges
type of situation. This review was also not meant to compare it against a
K3, 7600, 590 or any other rig.   This was simply to see how Icom's new SDR
would perform under pressure, and how it felt to my own ears.  (Everyone
has their favorite radio, and everyone has their own "my rig is better than
your rig" story, so lets leave that for another thread, ok?).
>
> There are lots more things I can say here that are technical (like PC
interfacing) but I will answer those questions if anyone has them.
>
> Bottom line:  I made a ton of QSO's, had a great time, and simply love
this radio. Its a real gem.
>
> Feel free to ask me any questions.  Happy to reply (with what I know so
far....).
>
> 73  James 9V1YC
>
> p.s. Yes, we even made some QSO's on 6m too.  About 43 JA's.
>
>
> Silvio Leiria
>
>
>
> ________________________________
> Date: Sun, 13 Mar 2016 12:40:46 +0000
> Subject: Re: [CT-Com. & Tec.] Fwd: ICOM IC-7300 OFFICIAL UK RELEASE THIS
SATURDAY!
> From: ct1aoz  gmail.com
> To: ct-comunicacoes-e-tecnologias  googlegroups.com
>
>
> Olá meus amigos...
>
> Botões????
>
> claro que depois de 50 anos com radios com botões eu andei mais de um ano
a levar a mao ao ''sitio'' onde deveria estar o botao do VFO e clao nao
estava lá.   hihihihi
>
> pelo que vos oiço, este aparelho é uma trampice... e quiçá uma merda
mesmo.
>
> Mas então ? em que ficamos ???
>
> Os ingleses dizem muito bem...
> Os americanos dizem bem do aparelho...
> os japoneses dizem bem...
> os alemães nao sei ...
> os chinos já estaó a fazer uma copia deste por 1/3 do custo deste ...
> HIHIHI
>
>
> Então?????????
>
> querem comparar ''trampa  com banha de cheiro'' ???
>
> A minha opinião:
>
> Por 1.300,00 Euros queriam 10 VFO's?????
> Pelo tamanho e c/ antena tuner queriam um Flex 6.000 ou Anan XPTO ???
>
> Pois eu acho que este aparelho é muita bom e só tardou em aparecer no
mercado.
>
> A vossa opiniao é sempre bem vinda mas tabem nao sejamos assim tão ''do
contra'' que diabo.
>
> aceitem um abraço
>
> J.Albuquerque
> CT1AOZ
>
> No dia 9 de março de 2016 às 22:23, Rodrigo <ct1bxt  gmail.com> escreveu:
>>
>> Pois,
>>
>> Foi a partir dessas queixas que alvitrei o MK2G ah ah
>> A primeira é mais dificil pois implica buracos ah ah mas a segunda, é
uma questão de software. O KX-3 faz dois receptores desde que as
frequências não estejam afastadas de mais de 15 KHZ.
>> Como é lógico o radio terá de ter botões para sintonia.
>>
>> Rodrigo
>> ct1bxt
>>
>>
>> Às 21:57 de 09-03-16, Filipe Lopes escreveu:
>>>
>>> Pena nao ter entrada para antena RX nem dual-watch...
>>>
>>> 73s Filipe Lopes
>>> CT1ILT CR6K
>>>
>>> Sent from my Huawei Mate 8
>>>
>>> Em 09/03/2016 10:39 p.m., "Antonio Matias" <ct1ffu  gmail.com> escreveu:
>>>>
>>>> Consegue-se ver no video e o mistério está desvendado.
>>>>
>>>> o radio usa uma FPGA Altera Cyclone IV
>>>>
>>>> O que abona bem a favor do rádio
>>>>
>>>> Só esse pequeno device custa quase 200€...
>>>>
>>>> Quer dizer que o radio deixa a porta aberta para uma evolução de
firmware no futuro.
>>>>
>>>> Positivo!
>>>>
>>>> No dia 9 de março de 2016 às 20:20, Gomes <ct1hix  sapo.pt> escreveu:
>>>>>
>>>>> Parece de brincar :)
>>>>>
>>>>> 73, Gomes op: CT1HIX
>>>>> http://ct1hix.webs.com/
>>>>>
>>>>> Às 20:15 de 09-03-2016, Silvio Leiria escreveu:
>>>>>>
>>>>>> Inside IC7300
>>>>>>
>>>>>>  https://www.youtube.com/watch?v=kjnRMwVrun0
>>>>>> 73s
>>>>>> Silvio
>>>>>> ct1bpt
>>>>>>
>>>>>>
>>>>>> ________________________________
>>>>>> Subject: [CT-Com. & Tec.] Fwd: ICOM IC-7300 OFFICIAL UK RELEASE THIS
SATURDAY!
>>>>>> To: ct-comunicacoes-e-tecnologias  googlegroups.com
>>>>>> From: ct1bxt  gmail.com
>>>>>> Date: Wed, 9 Mar 2016 14:22:30 +0000
>>>>>>
>>>>>> Emilio oficial da ML&S com o preço, £1045.95
>>>>>>
>>>>>> Rodrigo
>>>>>> ct1bxt
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