Inrad selects the best filters for the K3, the others which do not meet
K3 specs are sold as Yaesu filters.
And thats the truth..
Merv KH7C
Personally, I find it easier to believe that Inrad fixed the problem
based upon Elecraft's subjective confirmation of such than I do your
totally
Using 3.44 beta, since installing I seem to have a problem
when going from transmit back to receive. Not all the time
but often enough to notice.
It first seemed as if the vacuum relay in the Alpha was going
bad, like bad contacts, the receive after transmit would be
way down. If I hit the
Have one here I bought to save space, it generates enough
RFI that its unusable on many bands, If you have a high
noise level you may not hear it, but mine puts out a constant
noise above my noise level. Beads etc do not help, so its in
the junk box.
Merv KH7C
So far the quality seems fine.
Sorry for not being clear, the 7 bux one.
Merv KH7C
Which generates RFI? The PFU Systems HHK or the Microcenter?
I have the PFU PS/2 one, btw.
Leigh/WA5ZNU
Have one here I bought to save space, it generates enough
RFI that its unusable on many bands, If you have a high
noise level you
Just had one of the audio blasts from the past so to speak,
Using the latest 3.63,
was changing modes from RTTY to CW and as soon as
I pressed the Mode switch and the K3 went into full audio
loud screech. Happy it was on speaker and not headphones
as it was eardrum busting. Hitting the mode
And I strongly DISAGREE with Ron's statement that clicks are an essential
part of CW. Clicks are a function of a FAST RISE TIME and DISTORTION, not
keying speed. There's a KH6 contester who moved from K4 with a monster
signal, monster clicks, monster SSB splatter, and monster attitude to
With all the filter discussions and contest crowded environment etc.
This AM during the 160 contest, I was just tuning and working a
few to give out a point, as I tuned across 1814.0 there was a
10 over 9 6 land station calling cq, and at 1814.35 another 6
land at 20 over 9 calling cq, but
Yes, I find on DSP settings on the NB over about 6 that there are some
type of artifacts that make the signal chirp or some sort of distortion.
Merv KH7C
I worked and have since been listening to J79WE on 40m CW for some time. The
wind is blowing about 40 mph so the power lines are acting up
As someone posted before, they are here for 38.00 free shipping,
they are not a stocked item but if you order they say about a week
to ship them. Cheapest I have seen so far.
www.bhphotovideo.com http://www.bhphotovideo.com
73 Merv KH7C
www.zzsounds.com has them in stock for 59.95
Philip
A good article on the value of a DB is an old timer in QST I think it was,
Station design for DX
I guarantee you that if you improve your station by 1Db or more you will
tell the difference, have done it and it works. A whole new layer of DX
opens up for every DB you can find.
I see comments
Thanks for the info, last I had heard the board was not part of the new
DSP
board, but that was last month. I placed an order Nov 25 and have not
heard
a peep as yet about shipping or backorder or?? figured they were behind in
shipping.
73 Merv KH7C
I'm waiting on my new DSP board to
I agree also, although not a new owner, and one having the noise I try
all the settings recommended and ideas, I have several other radios to
compare to and using S meters is a poor way to compare, all I can say
is my K3 has more internal gain and noise than any other radio I have,
that includes
I would encourage going the kit route if a person has any ability at all.
Its very simple to build following instructions, and took me about 6 hours.
I was pleased with the fit of parts and panels and how fast the radio
went together. And as many have said it makes upgrading or changing
boards a
Anyone know if this is contemplated?
Thanks and 73
Bob N6WG
There has been a lot of discussion about this, I am not sure if there
has been any action or not, the first info that I remember is that
the small knob on the bottom right of the P3 controls the cursor
position and thats the
Drake?? What about Collins and the 75A4 that had a fine shift
control on the front panel, done mechanically/electrically but was
well before Drake had a radio.. Width was controlled by filters.
Merv KH7C
Originally, IF shift was defined as moving one IF passband
within another IF passband,
Here in the Pacific the SS kit is a must, my screw heads tarnished in a
couple
months on stock screws. I use a tiny dollop of penetrox or similar on
the threads
to make sure they come loose next time. Here in the salt everything
corrodes.
And the proper size driver tip is most important.
AMEN. what APF does is put rare DX in my logbook that most of the
others sit there and cannot pull the callsign out of the noise.
I call it receivability, you can have the best specs on the radio in the
world but if you cannot pull that weak one out and copy the call your
just second class.
I
The audio bandwidth is extremely narrow, centered on the tone freq
or some other you set it for, but its 10db of gain at essentially one
freq.
I'm with you so far, I'm all about the slobbering but if the AF and IF
bandwidths are already identical, a 10dB boost in audio gain is pretty much
Bill W4ZV wrote:
Steve Ellington wrote:
After filtering the cw signal down to 50hz and you kick in an audio filter
that has 10db or gain, your jaw drops, your eyes glaze over and you
immediately start slobbering about how signals POP OUT OF THE NOISE.
I've never had an FT-1000D
Bob Naumann wrote:
Who said they might even be reworked boards?
On what do you base this claim?
Somewhere either on this list or the elecraft site or ?? I read that
the boards were shipping up to 4 to 6 weeks late because of the
slow return of the old ones for rework.
So yes it appears
I am a new K3 user, have been using FT-1000D radios since 1989
with a brief try of Ten Tec, which I have to say was disappointing
due to lack of software updates and bug fixes etc.
My K3 is #2306, first impressions, it went together like a glove,
I started at 9 Am and by 5Pm dinner call it
Paul, dumb question but are you looking at VFO B readout area or
looking for the banner on the whole screen? The banner is just
scrolled in small letters on the VFO B read out space.
Merv KH7C
I loaded the new K3 firmware (2.78/1.98) and the new K3 utility 1.2.1.6.
I click on the utility
Iain MacDonnell - N6ML wrote:
Dr. Werner Furlan wrote:
hi Don,
Don Wilhelm schrieb am 11 Jan 2009 um 10:14:
The correct level depends on your microphone, your voice, and your shack.
Put the K3 into TX TEST and talk into the mic - increase the mic gain until
your voice peaks produce
I thought it was pretty nice for the menu to be in alphabetical order so
it was
easy to run through to find what you are looking for, and lends itself
very
well for new additions.
Also making up a cheat sheet for most used functions, just leave a
couple spaces
between letters for new
Not much of a RTTY person, but have had several requests for
RTTY qsos for the Triple Play LOTW award going on, so today
I had a request, got the manual out and in a few minutes had RTTY
perking along just fine. Quite a relief after having to have interfaces
and computer hooked up etc.
The Key Out relay is only energized during transmission. This is what you
would want for an amplifier. So for example if you turn your VOX off and
press your key or paddle, the Key Out relay will not energize. If you turn
your VOX on it will energize but you will also be transmitting. If
.
73, Guy.
- Original Message - From: Merv Schweigert k...@flex.com
To: K2MK k...@comcast.net
Cc: keith.dar...@goodrich.com; Elecraft Reflector
elecraft@mailman.qth.net
Sent: Thursday, January 22, 2009 3:30 PM
Subject: Re: [Elecraft] Silly question - what is KEY OUT?
The Key Out
Having the actual transmit freq PROMINENTLY displayed when you transmit on
CW with the decoder working would be a nice confirmation that you are indeed
xmitting where you think you are (split or not) - just listen to the K5D
xmit freq - looks like lots of folks need lots of reminders of just
Have to ditto whats been said, I have to run with AGC off, audio set about
3 o'clock and use the RF gain. That seems to work fairly well, I use the
400HZ filter most of the time. Not sure what the problem is but the audio
goes to pot in a hurry in a pile up. Sounds strange and no pure
From what I though the original post was about the trouble copying signals
in a pile up, it appears to me that thread has become at least 3 different
topics.
Seems there are people talking desense, AGC settings, and the pile up
problem.
To make mine clear, I do not have any desense
Yes as matter of fact I do have a second radio sitting alongside the K3
and I
split the antenna to both receivers for receive, so its a apple to apple
comparison, the second radio had no problems at all in the pile up, was
not going to mention I used the second radio to work the pileup and
then
Have noticed this on other bands but paid no particular attention,
but today was tuning 160 meters and every 5 khz there is a pop
or change in background receiver noise when tuning.
I listened carefully and it is there tuning up freq or down. It is
at every 5 khz.
I can hear it at 1809.1,
in itself.
Thanks again to Wayne for explaining what #2306 is hearing that 2,999
others dont. :o)
73 Merv KH7C (K9FD)
wayne burdick wrote:
Merv Schweigert wrote:
Have noticed this on other bands but paid no particular attention,
but today was tuning 160 meters and every 5 khz
Heres one I really dont want to bring up as I have seen so many
reports of how effective the NB is on the K3.
In fact one of the key factors that tilted me over the edge to buy
the K3 was reports that it had the best NB people had used.
This morning the long silent (at least on 40 meters)
Sold a FT-1000 to buy a new K3, shipped it priority mail to FL,
took 8 weeks to finally arrive, real service for sure, almost any
package priority mail to here takes over 5 days, you can track
and it arrives in Honolulu in one day from the mainland and sits
there for 4 to 5 days before they
I will also confirm the audio leaves a lot to be desired.
More than just a couple exceptions, perhaps some of
us did not drink the Kool Aide.
The exception proves the rule.
Steve Ellington
n...@carolina.rr.com
- Original Message -
From: Wes Stewart n...@yahoo.com
To:
Confirm this one also, I dont operate SSB but tuned in a couple
stations to
try it out and it will blow your ears off when you hit the NR button.
Did not reload older software to see where it took place but its new on the
last release or so.
Merv KH7C
I can confirm this. I've heard it on
The post from BA4RF etc about the NR causing the audio to blast,
I mentioned I do not work SSB but tried went to SSB and confirmed
the increase in audio,
well its on all modes as far as I can tell, to be more truthfull I do
not use
NR as I find it to non effective to CW work at least the for
I have the problem also for some time, it is signal strength
dependent, the signal must be loud enough and when you
hit the NR function with a high setting the audio increases
greatly,Easiest way to prove it is with a variable strength
signal fed into the receiver and setting the NR to a
I believe we have sold 2D fasteners to experimenters in the past; check
with sa...@elecraft.com.
We also sell blank project enclosures styled to match the K2 (EC2) and
K1 (EC1). There are two different height tilt stands for the EC2: ETS15
(1.5) and ETS2 (2.5). You'll find these on our
wayne burdick wrote:
If I add anything like this at all, it will default to OFF in a menu
entry.
First I have to do some tests to see if in fact there's a problem. Then
I have to consider hardware vs. firmware changes, keeping in mind that
only rarely will anyone encounter such
The past couple of days I have noticed the noise level on the K3 has
gone up a couple of S units and on 20 meters and there were tunable
hash signals.I started to try and find the problem and using another
receiver I find the Astron SS-30 is generating all sorts of noise.
I have used this
Milt, N5IA wrote:
- Original Message - From: Merv Schweigert k...@flex.com
I started to try and find the problem and using another
receiver I find the Astron SS-30 is generating all sorts of noise.
I have used this supply for some time and have not noticed the noise
before.
Merv
As usual it seems the thread has mutated into different conceptions of what
is going on. Ballistic tuning is when the knob is turned faster the
freq moves
faster,
I had a FT-847 and the tuning on it was jog shuttle an extra ring
around the
tuning knob that would move freq very fast depending
Just to check out this feature I turned on the SSB+CW.
With the radio vox off, qsk off etc when you hit the paddle
the radio goes into transmit. Is that normal?
Seems that the controls should work no matter the modes..
What am I missing?
Merv KH7C
On Thu, 4 Jun 2009 10:32:33 -0600, Bill W5WVO
I have the same set up and have had the same problem, it was fixed in the
last couple of updates. If you dont have the latest 3.19, I would give
it a try,
that has fixed it all for me.
73 Merv KH7C
OK, here's the story:
I've been having a strange problem with my K3.
I'm using it with an
I am some what confused with the issue. I also had assumed,
that if when I installed the 2nd receiver that split operation was
possible. To say it takes a 2nd transmitters is not true. It has
to be a switching issue in what I call software, firmware by others.
For instance my old FT-1000D,
of this is 100%
possible. Now its just a matter of if enough people feel its worth it
to step a little bit away from the current K3's operating convention and
make it happen.
~Brett (KC7OTG)
On Sat, 2009-06-20 at 13:15 -0700, Bill W4ZV wrote:
Merv Schweigert wrote:
I am some what confused
Cannot say what Rons definition of the noise is, but mine is the higher
pitched sound
of the radio without QRN and a noise level of S1 to S2 on the meter,
but I find its
easy to find a comfortable listening pitch by just using the shift
and a couple clicks
down the passband and the high
I also cannot duplicate this on #2603, I run the audio at 12 all the time,
if I set it at 9 or below I have almost no audio out. I use amplified
speakers.
Audio at 12, RF also about 12.
The monitor at 50, no thumps. monitor at 12 no thumps, the background
atmospheric noise is louder than the
I posted that I could not duplicate the thumps on #2603. After trying a
few more times
I am hearing exactly what Mike describes, and after talking with Toby,
it may be a
difference in terminology, at least on my part. I hear the same thing
but I describe it
as pops or clicks, and as Mike
Correct Ron, and I hear none of the low freq thumping.
As I mentioned I dont usually hear anything at all running
the AF/RF as I described in normal operation.
I have no problems, but I can duplicate the problem others
are having with the RF gain wide open.
Merv KH7C
Merv, KH7C wrote:
I
Is stacking 2 high possible to get enough cap?
Merv KH7C
There has to be a set of SMT caps that will fit back down onto those
pads... Has anyone looked for that yet? ~Brett
I've looked. The problem is in getting more than 100 uF of C in the given
PCB real estate with SMT
Take a look at Ridge Equipment, either on the web or ebay, I bought a
really nice air dummy load from them, tested and certified, for 15 or 20
bucks, 100 watt. Its small and works perfect for the K3 testing and
calibration, sure worth 20 bucks to have a dummy with no oil or mess.
And its good
Sounds good to me to be able to add your own supply if wanted,
How about the same cabinet with a blank panel for some of us
who would like to add speakers, and other accessories of our
own, size sounds perfect.
73 Merv KH7C
No power supply at this time. Its almost impossible to be cost
Color me stupid, but I have not come up with a way to change
bands / modes on a band efficiently, I am sure someone has
or does this all the time, would appreciate some input.
Read before answering because I do know how to change bands
and modes, but not in the fashion I would like to.
Yep caught that right off..I currently have M1 set for CW end of each
band and M2 set for SSB.
I just came up with my own solution I think,
VFO A 14025 VFO B 14027 SPLIT ON hit VM3
Hit MV M2 I go to SSB set freq for
VFO A 14195 VFO B 14205 SPLIT ON hit VM4
now all I have to do to
Kent, very well put and very true. So far this one very simple feature
has kept
the K3 from being at the top of the line so to speak. (tin hat on, keep
your flames
to yourself)
It all boils down to having the two radios side by side, and operating
weak signal
160 meters for instance. Both
Even double bandstacking would be a major step forward.
Amen.. KH7C
The thing I miss the most is the triple band stacking register if
there was a way to plug in some kind of (key pad) that could
have multi control functions one could be the band stacking
register.
This would be all good an
Not really, if you read the recommendations for the filters you will
notice
that caution is warranted for setting the gain higher than recommended,
for IMD prevention if I remember correct. Kind of like the Inrad roofing
filters, in some cases the gain is set to high and causes more IMD than
Have heard the same, looks to me like it fits like a glove on
the left side, since my K3 sits where a larger radio did, the
open space left is a perfect fit. Left side for me it is.
Merv KH7C
I've been told to look in the 600 to 800 price range...
On Sat, 2009-08-15 at 17:44 -0500, Jim
Guy, your missing the whole point of what APF is and what is does,
has nothing to do with selectivity, nothing to do with skirts at all,
it is in the audio chain and there for no effect or cause with AGC
Is rarely if ever used on a signal that is loud enough to copy,
its mainly used for signals
-15 at 12:42 -1000, Merv Schweigert wrote:
Not really, if you read the recommendations for the filters you will
notice
that caution is warranted for setting the gain higher than
recommended,
for IMD prevention if I remember correct. Kind of like the Inrad
roofing
filters, in some
it. (and I'm not with the 8 filters I have in my
radio) but one can if thats what they wish to do.
~Brett
On Sat, 2009-08-15 at 12:42 -1000, Merv Schweigert wrote:
Not really, if you read the recommendations for the filters you will
notice
that caution is warranted for setting the gain
dave.wilb...@verizon.net wrote:
What is the best way of determining the gain setting? Seem to recall an app
for this.
David Wilburn
NM4M
Sent from my Verizon Wireless BlackBerry
Perhaps this is what you were looking for Dave,
[Elecraft] On K3 crystal filter gain compensation
David Woolley (E.L) wrote:
Guy Olinger K2AV wrote:
stuff available) switching supply that..
2) is completely noiseless at RF frequencies.
Not physically possible for a switching supply; you need to specify
acceptable, non-zero levels of RF noise.
Absolutely correct Guy, I
David Woolley (E.L) wrote:
Eric Swartz -WA6HHQ, Elecraft wrote:
If this is set well above what is really needed, the DSP may generate
some distortion on really strong signals. We usually recommend +4 dB max.
I wonder if distorting the audio is really what APF is about. With a
Bill, thanks a million, I have difficulty explaining what is in the
brain cells,
this helps a lot, simple circuit, and agree that running this through a
simulator would give the answers.
I know some would not like the feature, but one does not have to use it.
Its the difference for me of
I did not touch a soldering iron when assembling the K3, not sure what
there is to solder unless your making some mods.
And solid wire solder would be a bear to use with no flux. Sure would
not try using flux with it would be a huge mess of left over rosin.
Cheaper to go buy a few feet of the
Any machine shop with a brake can bend up a front U shaped panel
like what is used on the K3, then all you have to do is match some
paint. Black should not be difficult.
Same with all the other panels, just the correct aluminum thickness and
have a shop shear and bend up what you want.
I bet
I have had some results like Richard, on 40 meters the Chinese dragon
has been active again and in the past the K3 is useless against this type
of radar. Much to my surprise it blanked the Dragon this time, I have
some distant power line noise that I was also never able to blank and
now the K3
Bob, for me its both, on the Dragon it takes both to do the job,
DSP T2-5 and IF Nar 5 removed the Dragon quite well ..
On the distant line noise I can sometimes get by with just the
IF blanker, but usually takes both there also. But less aggressive
settings.
Merv KH7C
Which noise blanker
When I first went to the site it would not download, I hit the refresh
button and then all was well. Has happened a few times like that
seems my computer needed to refresh the page and all was well.
Merv KH7C
Rich K3RWN wrote:
Subject: [Elecraft] FTP Site Problem?
Is anybody else unable to
Mike wrote:
Agreed about the clock. It's hard to imagine any logging software that
can't do a time sync with a NIST server, unless you're in the boonies.
My wristwatch claims to sync with WWV nightly.
I'm not sure what leeway LoTW (or some contests) allows for matching but
it might be as
Yep same here, cannot download the P3 manual, corrupt file that can
not be repaired.
Merv K9FD
Same here.
73, Ken K3IU
~~
On 8/10/2010 2:30 PM, David Pratt wrote:
I am getting an error message when attempting to open Rev A3 of the P3
Manual (10 August
It is for sure that there are some speakers which the K3 will not
drive adequately.
73, Guy.
I have had what some would call low audio out of serial number 26XX
since new,
to suit my tastes I drove a set of computer speakers that are amplified,
and they
worked fair, I have
For some reason that goes against what I think many are looking for in the
P3, if one has to narrow the span to 2khz, then I see no use for the P3
at all, I need
to see what is on the band at -127DBm at 30 to 50khz or more span. If
the signal is
only seen at 2KHZ, I can hear that by ear and
see a -135 dB signal, even at 200 kHz
span. (I had to use a 10 dB attenuator to get the signal generator to
go that low.)
Alan N1AL
On Tue, 2010-09-14 at 07:51 -1000, Merv Schweigert wrote:
For some reason that goes against what I think many are looking for in the
P3, if one has
I am one who purchased the SS screw kit and was happy with what I
received,
the cabinet screws are not some shiny SS off the shelf screws as some have
suggested. they are plated black, and also you receive most if not all
of the
interior fasteners and screws, washers etc. I would like to
Sorry, thought it was the KPA-500 mutated post that was ended.
73 Merv KH7C / KH7C
Folks - Please, we ended this thread yesterday.
73, Eric
Elecraft List Moderator - Really! :-)
---
On 10/20/2010 10:00 AM, Don Wilhelm wrote:
The benefit of APF is not selectivity to seperate signals at all. its
the
boost of a signal in the noise level that brings it up out of the noise
by peaking a particular audio freq. It is used to make copy of a signal
that is in the noise possible that is otherwise not possible to copy.
Not on the FT-1000D, the APF has an adjustable freq knob,
I find that I have it set 99 percent of the time the same pitch
as the side tone, so not sure that it needs to be adjustable.
Seems if it tracked the side tone freq that may be sufficient.
Problem is that APF should not be limited to
Nice job guys...all the previous FT-1000 owners will rejoice!
73, Bill W4ZV
Being a former owner of several FT-1000D radios, and one left in the shack
on the shelf next to the K3 which is in the primary position I have
to agree,
at first try this is the answer that will put my FT-1000D
2) Since the new DSP mods extends the bandwidth down to minus DC, implement
phasing detection to improve the opposite sideband rejection. Even without
the bandwidth extension, the SSB opposite sideband rejection is not the
greatest.
Wes N7WS
I think that has been altered from
Wonder if I could ask a favor of someone on the list,
I am installing the upgrade DSP board today and would
like to do the IF output mod. the Extreme signal mod,
and the VFO noise mod.
Does anyone have these PDF downloaded and they
can send them to me in an attachment? I have tried
several
Gentleman many thanks for sending the PDFs works just fine
on my reader, so can continue with the upgrades.
thanks again to all .. 73 Merv KH7C
Wonder if I could ask a favor of someone on the list, I am installing
the upgrade DSP board today and would
like to do the IF output mod. the
I think a little peace and quiet on the reflector is a good thing.
No traffic from the factory is a good thing, they are not sitting
with their feet up and looking for something to do, so quiet
means things are busy and moving along.
I would like to mention I received my DSP upgrade board in
After another interesting round of CQ 160 I would like to beat
the K3 drum a little also,
I found myself feeling guilty many times, I had the width set down
under 400HZ and tuning the band would work DX and not even
realize there was a 10 over 9 station less than a half KC up or
down from me.
Lets see now, getting the AGC settings correct I can understand,
except they do not adjust far enough, that I have experienced.
Reducing the RF gain like you are using a HQ-129X yep copy that
one also, and have done that since day one of owning a K3..
Using a set of headphones that act like a
I have no doubt that a full featured 1.5KW output SS amp with tuner yada
yada
would be in the 10,000 or over category.
And I am sure there is a limited market for that, but look at how many
Ameritron
amps are sold, the SS series, I have replaced finals in many of the ALS
series amps. there
Pardon me gents, but its hard as heck to get NR F1-1 on CW
with no AGC .. try it sometime.
Merv KH7C
NR:
For SSB..F5-3
For CW...F1-1
NB:
IF MED4
dSP t1-4
My DSP board was modified by Elecraft for wide audio bandwith with W9AC
hardware mods.
FW version 3.76
AGC on
Well watching the Nude Olympics would be a pretty good event this
year, have you checked out some of the gals in the ski and snow boarding
events?
Take ones mind of off P3 and K3 rubbish talk for a while at least.
Merv KH7C
Brian
Are you implying that some of us operate contest while nude?
Have for sale an excellent, still has plastic cover on the headband,
Heil Proset Plus, it is the IC model, It plugs into the K3 rear
mic jack and headphone jack and works very well.
It has the full sound IC element and the HC-4 element switchable.
Prosets are 150.00 Proset plus 190-200
There
You can do that now by using split. Hit split and use the
CWT to tune to freq, your transmit freq stays put, only the
receiver is tuned.
Merv KH7C
The Auto Spot feature is indeed GREAT! But wouldn't it be EVEN BETTER if you
could turn on the RIT, then AUTO spot someone with the RIT ONLY.
I operated inside a condo on the beach for several years with a 44 foot
wire center fed
with ladder line antenna, fed with a Johnson matchbox, I had some RF
on some bands, so I
strung a wire around the edge of the room on the floor cut for the band
that had the
worst RF. Connected it to the
I recently bought and dismantled a 50KW AM station and the transmitter
was a
Harris, made in 1979, the transformer tested for PCB. The capacitors
were ok.
I checked the manufacturer of the transformer and they provided info that
they used PCB oil until approx 1979 or 1980.
So unless you know
Any one updating and have a filter for sale, or filters?
Looking for a 5 pole 2.7 close to -80 offset,
Or perhaps a 8 pole 2.8, or 2.1 ?
Also 400 8 Pole and or 1000 8 pole ?
Or what do you have? Any one have a bad filter with a
circuit board intact? Like to do some experimenting
with
I am going to add some filters to my K3, need to pair up some
for the sub which I have in the main rx.
Anyone have a 400hz 8 pole for sale, or a 200hz 5 pole?
May consider a 1KHZ 8 pole also.
Thought I would ask before ordering a couple.
Thanks 73 Merv KH7C
Another solution is to take the zip cord and pull it apart, chuck two
ends
in a variable speed drill and turn slowly, it will make a very nice
twisted
pair out of any guage. Just be sure to use a length longer than what
you need
as it looses length as it is twisted of course.
To keep it in
Lyle Johnson wrote:
As the firmware was updated, the K3's noise blanker seemed to become less
effective or almost had no effect at all.
I just checked the source codec files of the DSP Noise Blanker back to
May of 2008 - absolutely no change has been made to the algorithm,
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