Not in my experience. Chokes are inductors and, together with stray
capacitance, can create unwanted resonances and accompanying
parasitics. Resistors just bleed the charge off an otherwise nearly
infinite input impedance which is the whole idea in the first place.
73,
Fred ["Skip"] K6DGW
What a clever way to install a static drain resistor! THANK YOU!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/18/20 3:46 PM, Fred Jensen wrote:
I believe Elecraft equipment has
"(More parts = more fun.)"
You must miss the days when tag strip construction was the norm. I prefer the
equipment to be smaller than the room it has to fit in. I also prefer to be
able to lift it. My first commercial RX was an AR-88D and it almost failed
both tests.
Highly integrated
We have both.
Wayne
> On May 18, 2020, at 4:39 PM, W2xj wrote:
>
> Better to use a choke
>
> Sent from my iPad
>
>> On May 18, 2020, at 6:47 PM, Fred Jensen wrote:
>>
>> I believe Elecraft equipment has static drains built in but I always put a
>> resistor in a PL-259 plugged into one
> On May 18, 2020, at 2:17 PM, Drew AF2Z wrote:
>
> Can you give a rough estimate of how many parts there are in a K4 compared to
> a K3? About the same? More? Less? (More parts = more fun.)
Hi Drew,
Rather than a parts count -- an esoteric parameter I get paid to worry about --
I'll give you
Better to use a choke
Sent from my iPad
> On May 18, 2020, at 6:47 PM, Fred Jensen wrote:
>
> I believe Elecraft equipment has static drains built in but I always put a
> resistor in a PL-259 plugged into one arm of a coax tee with the antenna on
> the other arm, on the connector on the
All of our radios have bleeder resistors at the antenna jacks.
73,
Wayne
N6KR
> On May 18, 2020, at 3:46 PM, Fred Jensen wrote:
>
> I believe Elecraft equipment has static drains built in but I always put a
> resistor in a PL-259 plugged into one arm of a coax tee with the antenna on
> the
ICE lightning arrestors include a static drain. I think the ones now made
by Morgan Mfg. and Array Solutions do too, but haven't confirmed that.
Jim N7US
On Mon, May 18, 2020, 5:47 PM Fred Jensen wrote:
> I believe Elecraft equipment has static drains built in but I always put
> a resistor in
I believe Elecraft equipment has static drains built in but I always put
a resistor in a PL-259 plugged into one arm of a coax tee with the
antenna on the other arm, on the connector on the radio. It doesn't
have to be precipitating to create "precipitation static" and it won't
take long for
LOL
__
Clay Autery, KY5G
(318) 518-1389
On 05/18/20 14:57, Victor Rosenthal 4X6GP wrote:
Or you can do what I did with my K3: burn up a static drain resistor on
your antenna entrance panel, decide that the smell is coming from the
K4, take it completely to pieces to try
Wayne,
Can you give a rough estimate of how many parts there are in a K4
compared to a K3? About the same? More? Less? (More parts = more fun.)
73,
Drew
AF2Z
On 05/18/20 11:12, Wayne Burdick wrote:
We certainly appreciate the interest in a K4 kit. It does take longer to get
the kit
On 5/18/2020 11:38 AM, Josh Fiden wrote:
These SS-30M supplies have been around a long time. Do others report RFI
problems?
Josh, Bob, and all,
I have no experience with Astron SMPS, and have seen nothing. I do,
however, own several no-name switchers advertised as quiet that are
quite
Or you can do what I did with my K3: burn up a static drain resistor on
your antenna entrance panel, decide that the smell is coming from the
K4, take it completely to pieces to try to find the burned
component, and then -- after discovering what actually happened -- put
it all back together
I have K2/10 S/N 1, but I'm not sure I want to part with it.
Wayne
N6KR
> On May 18, 2020, at 12:40 PM, George P Linehan III via Elecraft
> wrote:
>
> Paul, WA6YCA
> __
> Elecraft mailing list
> Home:
Paul, WA6YCA
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this
Bob -
I'm sure you researched them ... which one did you go with?
73
Lyn, W0LEN
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX
Sent: Monday, May 18, 2020 12:22 PM
To: elecraft@mailman.qth.net
Subject:
Has anyone encountered noise on 50 MHz with the Elecraft/Powerwerx power supply
for the K3S?
Thanks & 73,
John
WA1EAZ
> On May 18, 2020, at 2:51 PM, K9FD wrote:
>
> I had two of them and both had RFI, on 12 meter band, it was a broadband
> noise of
> S2 or so. If your noise level is
I had two of them and both had RFI, on 12 meter band, it was a
broadband noise of
S2 or so. If your noise level is higher than S3 then you may not even
notice it as it
was noise similar to the noise floor, as wide as the band.
Had other "spots" on other bands that had hash but not too bad.
EME on 6m, terrestrial on 2 & 432 with antennas directly above the shack.
Noise floor very low (usually) so anything added very apparent. I haven’t
noticed anything at HF.
The only problems I’ve had at HF were a particular model of Samsung monitor,
and PGE powerlines where HV ran on the old
> On May 18, 2020, at 10:51 AM, Buck wrote:
>
> Will the option modules be available to be shipped at the same time as a
> factory built K4?
Some will be, including the KAT4, KPA4, and KRX4 (the latter is what turns a K4
into a K4D). But customer-installation docs take some extra time. Our
Will the option modules be available to be shipped at the same time as a
factory built K4?
Buck, k4ia
Honor Roll
8BDXCC
EasyWayHamBooks.com
On 5/18/2020 12:12 PM, Wayne Burdick wrote:
We certainly appreciate the interest in a K4 kit. It does take longer to get
the kit version out since many
Sounds like it's quiet on the bands where you do EME. What bands are
those? Anything on HF?
73, Jim K9YC
On 5/17/2020 9:47 PM, Josh Fiden wrote:
Only when the moon’s at the same heading!
Shack is E of array which is on about 25’ of Rohn 45, so bottom antennas are
quite low.
House is SE
I have installed a whole house surge protector on the main breaker
panel. Thus everything in the house is protected equally.
I don't use any surge protection devices at any other locations.
My Justification: more connections, more items = more problems.
73
Bob, K4TAX
On 5/18/2020
Bob -
Having had to ship my 10 month old KPA500 back to Elecraft twice in its short
life, I was fearing the worst when I started reading your post.
What a relief to hear the actual cause ... and I can well imagine it was doubly
so for you!
73
Lyn, W0LEN
-Original Message-
From:
My KX3-PX3_KXPA100 system works perfectly, however I cannot understand the PX3
display. On either USB or LSB there is a significant, narrow signal spike
which tracks the KX3 frequency. On either USB or LSB it is at the edge of the
cursor where the carrier (suppressed) would be. There is no
We certainly appreciate the interest in a K4 kit. It does take longer to get
the kit version out since many new drawings are required to accurately
communicate details on modules, cables, and hardware to builders (as opposed to
in-house assembly personnel). Can't really put a date on the kit
I thought the group might find a recent KPA-500 troubleshooting experience
interesting - and possibly be of help with future troubleshooting efforts.
For reference, my station consists of a TS-890 followed by a KPA-500 and a
KAT-500, that interfaces different wire antennas depending on the
Yep, just more fun to "build" one eh?
Actually, I'm just plain "Cheap" and hoping to save a few bucks on a kit
version.
However, recent Elecraft kits are more like erector sets, but I DID build a
K2 complete with soldering stuff.
73, Charlie k3ICH
-Original Message-
From:
Thanks gents!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 5/18/20 7:04 AM, Wayne Burdick wrote:
There's also a shortcut. If you hold the ATT switch in for about 3 seconds, it
takes
There's also a shortcut. If you hold the ATT switch in for about 3 seconds, it
takes you directly to attenuator value selection. Note that the selected value
is stored on a per-band basis, as with preamp setting.
Wayne
N6KR
> On May 18, 2020, at 6:08 AM, Mark Musick wrote:
>
> The K3S has
The K3S has 5, 10 and 15 dB of ATT. You have to select MENU (NOT CONFIG MENU),
rotate VFO B to ATTN then rotate VFO A to select 5, 10 or 15. When you select
the ATT button you will have the amount of ATT set in MENU.
The triple level of ATT only applies to the main receiver. The sub-receiver
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