[Elecraft] Question about K4HD module

Sat Oct 21 00:11:29 EDT 2023

Hi Dave,

The HDR module will provide higher blocking dynamic range, though in practice this extra headroom would rarely be needed (typically in "my neighbor's beam is aimed right at me" situations). 

The K4D's ADCs are state-of-the-art 16 bit units with dither. We carefully manage front-end gain ahead of them. Also, if there are many signals on a band, such as in a contest, absolute peak voltage seen by the ADCs tends to be spread out. All of these factors lead to the performance you've observed. 

Many of those who originally ordered a K4HD have gone with the K4D with excellent results. In fact, the performance is even better than we'd predicted during the early design phase.

73,
Wayne
N6KR

> On Oct 20, 2023, at 1:49 PM, Dave (NK7Z) <dave at nk7z.net> wrote:
> 
> Wayne,
> 
> A question for you on the HD module...  What will that bring to the party, the K4D does not support now?  I have been amazed at how well the K4D does with strong signals, and I can't really see how you could make it a lot better...  Is there more I am missing?
> 
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
> 
> On 10/20/23 13:29, Wayne Burdick wrote:
>> Hi Pete,
>> The K4/0 team is independent of the KH1 team. Both are happening in parallel.
>> We still have supply chain issues with parts for the K4 HDR module, though progress is still being made on that front.
>> 73,
>> Wayne
>> N6KR
>>> On Oct 20, 2023, at 1:21 PM, Pete Smith N4ZR <pete.n4zr at gmail.com> wrote:
>>> 
>>> But when will the K4HD and the K40 be released?  I would think the market for either of those would warrant some priority
>>> 
>>> 73, Pete N4ZR
>>> 
>>> On 10/20/2023 4:07 PM, Dave wrote:
>>>>          Nice!
>>>>                
>>>>>  On Oct 20, 2023 at 12:37 PM,  <Wayne Burdick (mailto:n6kr at elecraft.com)>  wrote:
>>>>>        We're pleased to announce the new Elecraft KH1 -- a fully integrated, hand-held station for those who combine outdoor adventure with amateur radio. The KH1 was designed from the ground up with instant deployment in mind. It includes: - an entirely new form-factor optimized for HT-style CW operation (as well as table-top), with both knobs and key at the bottom - a built-in whip antenna matching network and clip-on whip that gets you on the air in seconds - internal ATU that works with both the whip and BNC-connected antennas, including random-length wires - a complete logging solution, with folding logbook tray, clip-on pen, easy-to-manage paper log sheet stack, real-time clock, and 32 kb of EEPROM for electronic logging of all transmitted text - plug-in keyer paddle that flips over for safe storage - scanning/mini-pan feature for hands-free signal search on quiet bands - 2.6 Ah Li-ion battery pack and zero-RFI internal battery charger that works with any 12-14 vo
> lt
>>   source,
>>>>   includi
>>>> ng small solar panels With all of the the above (the Edgewood Package) the KH1 weighs in at only about 13 oz. It's so light you can operate indefinitely, whether sitting, standing, or walking (pedestrian mobile, or "/PM"). It's the perfect size, with total volume about half that of our all-band/all-mode KX2 transceiver. The KH1 covers 40-15 meters, with over 5 watts output on all bands at from the internal 11 V battery pack. Its ergonomics are ideal for CW operation. It will also do CW/SSB cross-mode, and can copy AM and SSB on SWL bands from 6.7 to 22 MHz. The rig can also be 100% remote controlled via the supplied USB cable. Our newest radio has been optimized over the past year with the help of experienced SOTA, POTA, and QRP field operators. Its small size and high level of integration have already transformed their expeditions, allowing operation from anywhere, anytime. (One operated /PM for many hours during 2023 Field Day, making contacts exclusively with the attac
> h
>>  ed
>>>>  whip, wh
>>>> ile walking several miles.) For full details, please visit our KH1 web page:https://elecraft.com/products/kh1-transceiver  73, Wayne, N6KR Eric, WA6HHQ ______________________________________________________________ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft  Help:http://mailman.qth.net/mmfaq.htm  Post:mailto:Elecraft at mailman.qth.net  This list hosted by:http://www.qsl.net  Please help support this email list:http://www.qsl.net/donate.html  Message delivered todave at ad6a.com
>>>>>  
>>>>          ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home:http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help:http://mailman.qth.net/mmfaq.htm
>>>> Post:mailto:Elecraft at mailman.qth.net
>>>> 
>>>> This list hosted by:http://www.qsl.net
>>>> Please help support this email list:http://www.qsl.net/donate.html
>>>> Message delivered topete.n4zr at gmail.com
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft at mailman.qth.net
>>> 
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to n6kr at elecraft.com
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to dave at nk7z.net
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n6kr at elecraft.com 