Date   

K3s wiring to PK-232sc or PK-232sc+ for soundcard modes and FSK RTTY, PACTOR, PACKET

HB
 

There is not a lot of info out there for the PK-232sc+ in regards to the K3s.  There are a few good articles for using the PK-232 for FSK RTTY with the K3.  The PK-232sc with its DSP filtering for RTTY and the fact it has a very quiet soundcard - similar to the Navigator, make it a great tool for digital modes - even with the K3s.  I have not tested the noise floor of the K3s's soundcard, but I'm sure it is very good quality.

Anyhow, I like a challenge.  I have a hand drawn schematic of the interface cables between the PK-232sc (or sc+) that I would like to post in the files section.  This cable connects the soundcard, and the FSK port on the PK to the K3s.  This cable also allows the use of the other modes native to the PK like CW, PACTOR, PACKET, etc. Also connecting a keying cable from the PK's CW port to the key jack on the K3s will allow the PK to send CW while the PK will activate the PTT line at the same time.

Using software like DXLabs WinWarbler or MMTY for RTTY will use the PK's great DSP filtering for RTTY reception AND use the PK's soundcard for reception at the same time.  This works really well in poor conditions.  The PK or the PC will always decode the signal.

Using the Pk requires some setting changes in the K3s like you would for any external soundcard.  The Line out audio needs to be set to 40 or so for the PK to work FSK and traditional modes like PACTOR and CW.  Line In can be set to match the the soundcard output and separate AFSK output on the PK.  Having two outputs allows you to set the AFSK level for proper deviation if using the 2m module for packet (WinLink etc.) or another radio.  The PK has 2 radio connections.  This allows the soundcard output volume to be set independently to help with ALC control if needed.  My K3s Line in achieves proper ALC at about 15 with the levels set on the PK.  For RTTY, the data mode on the K3s is set to FSK D, 45bps.  For CW, CW mode, and for soundcard modes (PSK, FT8, OLIVIA, etc.) DATA A.  That's very brief, but I can help with other details if you need them.

I made a cable that works fine, but I'm not that great with construction anymore.  Ham made Parts built one that looks and works great.  I would add the cable drawing file to the files section but it's restricted - can someone show me how?

Hank
K4HYJ


Re: Manual Notch Width

HB
 

I have tried what you mention.  This is really for helping the intelligibility of a signal.  Sometimes reducing the bandwidth doesn't help because as the offending signal is removed, so is part of the target signal.  The ICOM 7600 and 7700 has the ability to pick 3 notch widths and then you can adjust the frequency manually. 

Sometimes taking a bit of the sharp/nasal tones out of the offending signal makes all of the difference in the world in understanding the target signal.  That would be a nice addition to the K3s's DSP arsenal.  That's one feature where the ICOMs have it beat!

I am curious if there is some other limitation that would prevent the addition of that feature?


K3S and P3 for sale

Keith KV5J
 

FOR SALE:

K3S, mint and lots of extras Serial # 10547. 
P3 Serial # 4047 with transmit monitor installed.
K3S was sent back to the factory for all updates including LPA upgrade to B and KPA3A upgrade to C4.
K3S SN 10547 "meets or exceeds all factory specifications".
KPA3A 100W
No ATU but has a custom KANT3 module that allows ant1 and ant2 selection. Will also include original KANT3.

Main receiver has:
13.0kz FM/AM filter
2.7k Filter
1.8k Filter
500hz CW filter
KDVR3 Digital Voice Recorder
K144XV 144-148 MHz 2 meter 10 W Internal Module

KRX3A 2nd RX with:
2.7k Filter
2.1k Filter

$5789.50 USD invested. Price $4500 USD plus shipping.
Email for payment options.


Of course Elecraft does this best...

Anthony Luscre
 

This was the outgrowth of a recent presentation I did for our radio club's General Class License Class- Having Fun with Morse

--
Anthony Luscre

K8ZT
Assistant Ohio Section Manager for Education Outreach
ARRL - The National Association For Amateur Radio™
 
a@... (best for Education & Technology)
k8zt@... (best for Amateur Radio)

The Web Resource Hoarder- www.ZTLearn.com
Web Resource Hoarder Blog

K8ZT Radio Website- www.k8zt.com
My Radio Blog- k8zt.blogspot.com


Re: Swedish QRG on 5 MHz

Bob McGraw - K4TAX
 

I've had an incident where I can't post 60M DX Spots on DX Summit.  I figure this is due to the frequency allowed to be used elsewhere and thus does not accept those frequencies on 60M as allowed in the USA.    Similar situation, I'd say.   

73
Bob, K4TAX


Swedish QRG on 5 MHz

James F. Boehner, MD
 

Einar,

 

Send an e-mail to support@... .  They can send you a software program that can unlock those frequencies.  Be sure to send them your serial number.

 

’73 de Jim N2ZZ

Listowner

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Einar Lundborg
Sent: Tuesday, March 05, 2019 3:46 AM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] REF. Swedish QRG on 5 MHz

 

Hello!
My Elecraft`s K3 can`t operate between the freq. 5331,50  kHz - 5366,50 kHz. This portion is blocked.
So, how shall I manage to open up this?  Now the rig is operative from 5310,5 - Up some Hzs, hi.
My K3 is pretty old now with s/n 0147. Else the tranceiver works as new! (excellent).
Thanks in advance for information. 
Please send me an e-mail to  cbc@...
72 / 72
Einar Lundborg,  SM5CBC
CBC of Sweden since April 1953


Re: Elecraft W2 for sale.

Keith KV5J
 

PayPal is good. Use this email. 

Thanks

Keith


On Monday, March 4, 2019, 9:32:29 PM CST, George Briggs <k2dm@...> wrote:


Keith,

I’d like the W2.  How would you like payment? Paypal OK?

73,

George K2DM

 

 

Sent from Mail for Windows 10

 

From: Keith KV5J via Groups.Io
Sent: Monday, March 4, 2019 3:14 PM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] Elecraft W2 for sale.

 

I have a factory built Elecraft W2 watt meter with 2000w sensor for $275 plus $10 shipping and insurance.

Also

Mirage B1018g 2 meter amp for sale.
10 watts in 160 watts out. SSB/CW/FM PREAMP works great.
5 watts in from HT gets 120+ watts out.
Includes instruction manual with schematics.
Powerpole connectors installed.
$280 plus $20 shipping and insurance. 
Money order or cleared check. Will take PayPal if you want to pay.

 


REF. Swedish QRG on 5 MHz

Einar Lundborg <cbc@...>
 

Hello!
My Elecraft`s K3 can`t operate between the freq. 5331,50  kHz - 5366,50 kHz. This portion is blocked.
So, how shall I manage to open up this?  Now the rig is operative from 5310,5 - Up some Hzs, hi.
My K3 is pretty old now with s/n 0147. Else the tranceiver works as new! (excellent).
Thanks in advance for information. 
Please send me an e-mail to  cbc@...
72 / 72
Einar Lundborg,  SM5CBC
CBC of Sweden since April 1953



Re: Elecraft W2 for sale.

George Briggs
 

Keith,

I’d like the W2.  How would you like payment? Paypal OK?

73,

George K2DM

 

 

Sent from Mail for Windows 10

 

From: Keith KV5J via Groups.Io
Sent: Monday, March 4, 2019 3:14 PM
To: Elecraft-K3@groups.io
Subject: [Elecraft-K3] Elecraft W2 for sale.

 

I have a factory built Elecraft W2 watt meter with 2000w sensor for $275 plus $10 shipping and insurance.

Also

Mirage B1018g 2 meter amp for sale.
10 watts in 160 watts out. SSB/CW/FM PREAMP works great.
5 watts in from HT gets 120+ watts out.
Includes instruction manual with schematics.
Powerpole connectors installed.
$280 plus $20 shipping and insurance. 
Money order or cleared check. Will take PayPal if you want to pay.

 


Elecraft W2 for sale.

Keith KV5J
 

I have a factory built Elecraft W2 watt meter with 2000w sensor for $275 plus $10 shipping and insurance.

Also

Mirage B1018g 2 meter amp for sale.
10 watts in 160 watts out. SSB/CW/FM PREAMP works great.
5 watts in from HT gets 120+ watts out.
Includes instruction manual with schematics.
Powerpole connectors installed.
$280 plus $20 shipping and insurance. 
Money order or cleared check. Will take PayPal if you want to pay.


K-Pod for Sale

John Huffman
 

Little used K-Pod.  Like new, no smoke, no pets with manual and cables.

$195 shipped continental US.

Please reply directly to QRZ email address.

K1ESE
John


Re: Manual Notch Width

ab2tc
 

HI,

Hmm. The notch (manual or auto) is primarily designed do knock out heterodynes (i.e a single frequency). There may be restrictions in their design that might preclude the rejection of a wider band of frequencies. The designers would have to chime in. Have you tried to simply turn down the HI CUT to combat the problem? I often cut it down right to 2.1kHz with good effect. In my case that causes my 1.8kHz filter to cut in, but I doubt if if is makes much difference.

AB2TC - Knut


On Sun, Mar 3, 2019 at 05:56 PM, HB wrote:
Hey folks...
After weathering the first SSB contest with my new (last October) K3s, I have 2 comments:  awesome filtering(!!) - was able to mostly kill strong stations unless they were 500cycles away and really loud and splattered, and 2 - I wish I could adjust the manual notch width!

On the notch, there are some instances where tweaking the width a tad wider could cut some interfering nearby stations enough to make the target station legible.  Then there are occasions when the manual notch is too wide when an offending tone is right up against the target and the notch cuts into the target station (auto is way too wide).  My old IC-7600 and 7700 had that feature and could really help out on a crowded piece of band.

Any chance the adjustable notch width might be in a new software release?

Hank
K4HYJ


Manual Notch Width

HB
 

Hey folks...
After weathering the first SSB contest with my new (last October) K3s, I have 2 comments:  awesome filtering(!!) - was able to mostly kill strong stations unless they were 500cycles away and really loud and splattered, and 2 - I wish I could adjust the manual notch width!

On the notch, there are some instances where tweaking the width a tad wider could cut some interfering nearby stations enough to make the target station legible.  Then there are occasions when the manual notch is too wide when an offending tone is right up against the target and the notch cuts into the target station (auto is way too wide).  My old IC-7600 and 7700 had that feature and could really help out on a crowded piece of band.

Any chance the adjustable notch width might be in a new software release?

Hank
K4HYJ


Re: KPA1500 with non-Elecraft exciters

Richard Lawn
 

I found my problem which was operator stupidity! Still trying to decide whether to part with my KPA500/KAT500 combo for a ne 1500.

73
Rick, W2JAZ


Re: KPA1500 with non-Elecraft exciters

Lou Laderman W0FK
 

Rick, I'm using the KPA1500 very successfully with an IC-7610. Plays very well together. Make sure the CI-V baud rates match or the KPA1500 won't track your 7610.

For setup details, see https://ftp.elecraft.com/KPA1500/Mod%20Notes%20Alerts/KPA1500%20to%20Icom%20IC-7610%20rev%202-4.pdf

73

Lou, W)FK


Re: An ideal amplifier for the KX2 (and KX3)

Drew Vonada-Smith K3PA
 

Thank you Chuck.  I saw the 13.8 but not the 53V part.  My error.

73,
Drew K3PA


Re: KPA1500 with non-Elecraft exciters

harry latterman <harrylatterman@...>
 

Can't say about using a 1500, but will say in my case I switch between my K3 and IC-7300 and have no issues. I have hooked to the KAT500 a G5RV at about 20 ft and a 7 band OCF at about 30 ft. The OCF will tune all bands from 80-6 meters with a 1.1 to 1 or on 60m, 30m  and 15m as high as 1.5 to 1. The G5RV will tune 160-10 meters with about the same... Note the G5RV is a 102ft one and should only tune 40-10 meters.

I always put the AMP in bypass and set the power to 20-30 watts for tuning, then adjust drive power as needed for what I want, generally 300-500 watts with no faults. Hope this info helps

73 Harry K7ZOV

On Saturday, March 2, 2019, 9:30:10 AM CST, Richard Lawn <rjlawn@...> wrote:


I'm considering replacing my KPA500/KAT500 with the 1500. On the shack desk I use a K3 and Icom 7610. Of course the KPA/500/KAT500 combo plays very nicely with the K3, but I seem to be having some tuning issues occasionally with the 7610 particularly if I move to a different part of the band - like the 40m cw portion, where there is a great match, to the SSB section. Things go into default before the tuner reaches a good match. I'm either doing something wrong or there is an issue between the icom and elecraft combo. 

I'm interested in hearing from hams that are using the new 1500 with non-Elecraft radios and if they have any similar problems.
73
Rick, W2JAZ


KPA1500 with non-Elecraft exciters

Richard Lawn
 

I'm considering replacing my KPA500/KAT500 with the 1500. On the shack desk I use a K3 and Icom 7610. Of course the KPA/500/KAT500 combo plays very nicely with the K3, but I seem to be having some tuning issues occasionally with the 7610 particularly if I move to a different part of the band - like the 40m cw portion, where there is a great match, to the SSB section. Things go into default before the tuner reaches a good match. I'm either doing something wrong or there is an issue between the icom and elecraft combo. 

I'm interested in hearing from hams that are using the new 1500 with non-Elecraft radios and if they have any similar problems.
73
Rick, W2JAZ


Re: An ideal amplifier for the KX2 (and KX3)

CR
 

Drew:

I don't understand your question. The amplifier is a 53-volt amp. The IMD with PureSignal is below 53 dB.

Chuck w8mqw



On Sat, Mar 2, 2019 at 2:22 PM Drew Vonada-Smith K3PA <drew@...> wrote:

When you say clean SSB watts, what do you mean specifically?  Are there any IMD figures?  I would not normally associate a 12 V driven amp to be particularly clean.

73,

Drew K3PA


Re: An ideal amplifier for the KX2 (and KX3)

Drew Vonada-Smith K3PA
 

When you say clean SSB watts, what do you mean specifically?  Are there any IMD figures?  I would not normally associate a 12 V driven amp to be particularly clean.

73,

Drew K3PA

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