[Elecraft] K4 YouTube Video List by Date

Mon Dec 23 15:42:30 EST 2019

Hi All,

I use more or less happily 2 x K3S (+P3) upgraded by myself and 1x Original K3S (+P3). Serial No. are around 4000 , 7000 and 10400.
Recently I added YAESU FTDX101MP, impressive!
Comparing the NB and NR ( CW, SSB) in many very critical local QRM , QRN situations makes YAESU audio sound better and actions are often more effective than with K3S.
In HF mobile , low bands , have not tested the YAESU yet  😉.

73 Andy HB9CVQ www.qrz.com/db/hb9cvq

-----Original Message----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Wes
Sent: Montag, 23. Dezember 2019 21:11
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K4 YouTube Video List by Date

I can say that I would be looking at a TS-890 on my desk if it wasn't for the reported abysmal NB/NR performance.  I can believe the reports because as best as I can determine, Kenwood used the same processing in the '890 as they did in the TS-870.  Before Elecraft I owned an '870 and loved everything about it except for the NB/NR.  I had remarked more than once that Kenwood wasted valuable panel space by including controls for those features.

Frankly, I'm not very satisfied with the K3/K3S NB performance either. (I seldom bother with NR) Twenty-one settings for hardware and 21 settings for DSP blanking are ridiculous. IMHO, of course.  If the K4 does significantly better then I'll be an optimist and buy myself one for my 79th birthday.  The bugs should be resolved by then.

re: Sensitivity, this is a non-issue for any decent radio built in the last 20 years or more.

Wes  N7WS

On 12/23/2019 10:20 AM, John Stengrevics wrote:
> POTENTIALLY better NR & NB will have to wait for hard data and independent reviews.
>
> And, this will absolutely determine whether or not I transition from the K3S to the K4 (along with improved sensitivity).
>
> 73,
>
> John
> WA1EAZ
>
>> On Dec 23, 2019, at 9:43 AM, M. George <m.matthew.george at gmail.com> wrote:
>>
>> It's not surprising that there many looking for all the information 
>> they can get on the K4 etc.. Here is a YouTube link that lists K3 
>> related video 'Search for Elecraft K4 Sorted by Date for Video posted 
>> this year'
>> <https://www.youtube.com/results?search_query=elecraft+k4&sp=CAISBAgF
>> EAE%253D>
>> :
>> https://www.youtube.com/results?search_query=elecraft+k4&sp=CAISBAgFE
>> AE%253D
>>
>> Just use the filter option in YouTube in this case to narrow down the 
>> videos to the latest postings based on the search criteria to get the 
>> latest video by date.
>>
>> The first video in this list contains a lot of detail at 38 minutes 
>> long (Eric). (ELECRAFT K4 IN DEPTH with WA6HHQ at Waters & Stanton 
>> Ltd Portsmouth UK).  Take the time and watch the whole video... there 
>> is a lot of detail in this one.
>>
>> For the questions that seem to persist about how the K4 will compare 
>> to the K3... you quickly begin to understand that the receiver specs 
>> will be similar to the K3S, especially once you understand the K4 
>> design approach with the hyrbird direct sampling approach and 
>> superhet addition in the K4HD.  At the same time, I'm not going to 
>> underestimate the potential for some eye popping numbers when the 
>> K4HD module is introduced. (think Third-Order Dynamic Range Narrow 
>> Spaced rankings).  However if the specs are similar to the K3S or 
>> even a little better, it's becoming more clear to me that the K4 
>> platform and it's future potential with advances and refinements in 
>> the software are where the real advantages are.  Big leaps here over 
>> the K3S.  Leaps that the K3S can simply never take do to the limited 
>> processing power.  The K3 and K4 are not even in the same league in this area.
>>
>> You also begin to see the much higher potential the K4 has as far as 
>> noise reduction / noise blanking capability due to algorithms having 
>> access to a much wider bandpass with the SDR direct sampling 
>> approach.  Just my opinion, but I suspect there will be some big 
>> improvements in these areas as compared to the K3/S line.  The speed 
>> of the processing power and access to bandwidth will allow for better 
>> noise reduction etc... plus the software improvements over time and 
>> head room for processing power sets up the K4 for some big performance leaps improvements are made in software (IMHO).
>> You can glean all of this from the videos (reading between the lines) 
>> in my opinion. i.e. Elecraft potentially adding the capability with 
>> diversity receive to do phase shifting to null out noise, similar to 
>> the capability you get with a NCC-2 box for example.  And consider 
>> the design approach to upgrade the ADC processing... the K4 seems to 
>> be setup for a long life with some interesting improvements down the 
>> road, not only with the software, but think hardware processing upgrades too.
>>
>> I can't speak for anyone else, but since the K4 has been announced I 
>> have gone through a phase of trying to convince myself that the K4 
>> isn't any better than my K3S, so why would I consider a K4?  ($4K to 
>> $6K for a new rig sure isn't chump change and could be spent on other 
>> station improvements right?) As far as some of the tell-tell specs 
>> like dynamic range blocking with strong signals near your band-pass 
>> etc... I think with the K4HD, the specs will be similar, but overall, 
>> what is beginning to interest me is the amazing potential the K4 
>> design has.  We are talking about two very different animals here. 
>> (with the same linage)
>>
>> I have also spent a considerable amount of time looking at the direct 
>> sampling competitors and as I start to dig in, I'm really seeing some 
>> lacking features as they relate to a CW operator's rig.  I guess I'm 
>> biased as a current Elecraft Fan-Boy / CW operator (I'll admit it), 
>> but when I look at what I would be giving up in regard to CW 
>> operating features that have become second nature to me, I think I 
>> would be very disappointed. If you spend some time in the competitors 
>> user groups you will understand what I'm talking about, but that's 
>> just me.  Owners in these other groups have been begging for some common CW features that never seem to materialize.
>> However competition is good and it's great to have options.  You 
>> can't go too wrong with any of the high end rigs these days, 
>> including any of the direct sampling designs that are shipping now.
>>
>> So to end this tome of a post... if I had to place an order today for 
>> a new rig, it would be a an order for a K4.  Wink / wink, maybe I already did.
>> ;)  And if I did, I'm happy to wait X number of months for the K4 to 
>> emerge only when it is ready for prime time.  My trusty K3S at my 
>> side as I type away at the keyboard here will make the wait easy.  Take your time Elecraft.
>>
>> Max NG7M
>>

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