Date   
Suspect Parts

Curt
 

For awhile, substandard parts, (small value ceramic capacitors and transistors in particular), have been sold for very low prices on the auction site.  Had encountered these in very cheap kits from the same site and always considered it getting what was paid for.  Routine testing of these components was necessary to avoid building a brick, usually replacing the bad parts with parts from a vendor like Mouser, Digikey, Newark, etc.  Sometimes wholesale replacement was easier than testing as even with testing, the life of the suspect capacitors is unknown.  An audio transistor relabeled as an RF transistor or RF FET can be frustrating.

More recently, have been encountering these same substandard parts in kits sold by qrp clubs and small us vendors. Most have likely always relied on the quality of the provided components, and didn't bother testing components before installation. Those days are over. My two most recently purchased kits had substandard 0.1 uf ceramic capacitors as tested.  When I test a component and find it 1/2 the labeled value with ten times the loss I don't trust it at all.

Curt KB5JO

Re: Ozark Banner

Tim N9PUZ
 

Thank you to Keith and all of the authors for another nice issue of the Banner!

I like to do SOTA activations when I'm able; the nearest "summits" are about 3 hours away from my home. To get my "fix" I also participate in the POTA (Parks On The Air) program since there are several of those to choose from within an hours drive and even a couple within about 20 minutes.

I really enjoyed the post on portable masts. Because of the various park regulations and also because I can be kind of lazy I often extend my mast with the wire attached and then taking the direction of the prevailing wind into consideration I just lean the pole into a tree. Works well and even a Conservation Officer who stopped where I was operating once never said a thing after looking at it.

I have three of the Jackite brand poles and highly recommend them for their ruggedness. My first one (28 ft) is about 20 years old now and is still going strong. Before installing a tower at home it was used outdoors for about 18 months straight as the center support for a NorCal Doublet which was my only HF antenna at the time. The lettering on the pole faded but aside from that it's in great condition.

Tim N9PUZ

On 8/17/2019 10:50 AM, Keith Arns via Groups.Io wrote:
The August edition of the Ozark Banner is now available for you to download.  Hope you enjoy it.

Keith Arns
KC0PP
Editor

Re: Great Banner

Johnny AC0BQ
 

I agree with Paul.
Great Banner Kieth

Thanks for putting it together.
72
Johnny AC0BQ 

On Sat, Aug 17, 2019 at 11:46 AM Paul Smith <n0nbd@...> wrote:

Good banner this time. I really liked the section on Masts for portable ops. Im going to have to upgrade to the jackite pole although my old sunny day crappie rod is 15 years old or so and still kicking. good read de Paul N0NBD

Sent from Outlook

--
Check out the 4SQRP website at 4sqrp.com

Re: Ozark Banner

n4mj
 

That's a great 'Banner' Keith.  I have looked it over quickly and plan to re-read it later when I have more time.

Thanks for letting us know it was online.

73 de n4mj//glenn


 
PLEASE REMOVE all email addresses before you send it on and use BCC option when forwarding"
  Thank you! 



On Saturday, August 17, 2019, 10:50:38 AM CDT, Keith Arns via Groups.Io <kc0pp@...> wrote:


The August edition of the Ozark Banner is now available for you to download.  Hope you enjoy it.

Keith Arns
KC0PP
Editor

Great Banner

Paul Smith
 


Good banner this time. I really liked the section on Masts for portable ops. Im going to have to upgrade to the jackite pole although my old sunny day crappie rod is 15 years old or so and still kicking. good read de Paul N0NBD

Sent from Outlook

Ozark Banner

Keith Arns
 

The August edition of the Ozark Banner is now available for you to download.  Hope you enjoy it.

Keith Arns
KC0PP
Editor

Re: Brutus reservations

Tom Sevart
 

I'm planning on taking my camper, so will get a regular spot.


On Fri, Aug 16, 2019, 22:43 Paul Smith <n0nbd@...> wrote:
The lady last year said we could camp at the shelter house with the restrooms left open. Someone might inquire. The use of the shelter house was $25.00
Paul N0NBD

Sent from Outlook

Brutus reservations

Paul Smith
 

The lady last year said we could camp at the shelter house with the restrooms left open. Someone might inquire. The use of the shelter house was $25.00
Paul N0NBD

Sent from Outlook

Re: Nouveau 75 Distorted Audio

nm0s_qrp <ai9e_qrp@...>
 

This rig uses a TA7642 IC for the AM detector and AGC.  It combines many functions in a three-pin package.  It is also known for its distinctive audio characteristic, as builders of the Murania can attest.  The audio quality is somewhat determined by bias levels.  Much of the harshness of the audio can be rolled off in the speaker driver bu adding some additional capacitance to C12, in the 0.001 to 0.01u range.

Re: #BRUTUS Reservations at Brutus? #BRUTUS

Tom Sevart
 

On 08/16/19 14:53, wg5f@... wrote:
Has anyone made reservations at Brutus yet?
de, WG5F, Ed, Tulsa.
_._,_._,_

Not yet but I plan to be there.


--
Tom Sevart N2UHC
St. Paul, KS

Re: #BRUTUS Reservations at Brutus? #BRUTUS

Johnny AC0BQ
 

Not yet Ed
But I need to call them soon.
73
Johnny

On Fri, Aug 16, 2019 at 2:53 PM <wg5f@...> wrote:
Has anyone made reservations at Brutus yet?
de, WG5F, Ed, Tulsa.

--
Check out the 4SQRP website at 4sqrp.com

#BRUTUS Reservations at Brutus? #BRUTUS

Ed Meyer, WG5F
 

Has anyone made reservations at Brutus yet?
de, WG5F, Ed, Tulsa.

Re: Nouveau 75 Errata

K4ENC
 

IS THERE ANOTHER WAY TO GET RX   AND TX  TOGETHER..CANT  COPY WWV OR CUBA WITH RIG   EVEN AT 0300...………….  OTHER OPTIONS?????

-----------------------------------------

From: "nm0s_qrp via Groups.Io"
To: main@4sqrp.groups.io
Cc:
Sent: Tuesday August 13 2019 1:03:38PM
Subject: Re: [4SQRP] Nouveau 75 Errata

One of my priority items for this week is to compile a troubleshooting guide with expected voltages.  You'll see it hopefully by the end of the week.

73 Dave
_._,__,_

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Please plan to attend the Ozarkcon QRP Convention April 3-4, 2020 in Branson, MO
Visit your group website: www.4SQRP.com
Your Subscription | Contact Group Owner | Unsubscribe [K4ENC@...]
_._,_._,_

Nouveau 75 Distorted Audio

Bill VanKirk
 

I just completed a Nouveau 75 kit. Everything seems to function as it should however the receive audio is distorted to the point you can not understand the receiving station. I have completed all the usual checks for parts placement etc. and as far as I can tell everything is correct. I do not have the skill to work with SMD parts. Would someone from the 4states group be willing to take a look at this for me? Please email me direct with any questions etc.

73
Bill
W0PT

Re: Hi-Per-Mite Center Frequency

John Kirby
 

Yes add to your listener pleasure ... after the QCX onboard filter bypass, plug this qrpkits filter into your QCX PHONES jack 

Advertised CW but this filter is front panel tunable and does an fantastic job on SSB voice (hence FT8, WSPR).

 http://qrpkits.com
 http://qrpkits.com/ezseries.html#ezbandpass

qrpkits filter kit goes for 25 clam$ (half the cost of the QCX) but well worth it to me because I am  CFZ   (CW FILTER NUTZ) and lost count of # in shack.

...OR... roll your own from junk box...

I have first hand experience here TQQ !!!
>>>>http://www.circuitstoday.com/band-pass-filters<<<<
I plug these  math equations into EXCEL
then built several BPF ... to include a >VARIABLE< CW band pass filter
THAT WORKED FIRST TIME :>))

" until I get the code down pat " Dale, ... PAT? ...
Hans QCX menu driven Practice CW mode (off the air) and CW decoder on and off air.

72, 73
John
N3AAZ

Re: Hi-Per-Mite Center Frequency

Gwen Patton
 

Dale...I believe it's called a "QCX". At least, that's what I built. ;)

73,
Gwen, NG3P

On Thu, Aug 15, 2019 at 11:23 AM Dale Hardin <joe.dale.hardin@...> wrote:
John, I may want to mod the OCX for SSB until I get the code down pat.  I think a variable bandwith ssb/cw filter would be nice.  Is your variable cw filter wide enough for ssb?  If so, can you make the design available?
--
Dale Hardin, KS4NS
Elberta, AL



--

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net

Re: SSB Mite

n4mj
 

HI John,
Up front I'm not familiar with that particular 'audio' filter, however, it has been my experience that 'add on audio filters' are connected via the headphone jack for use with headphones OR between the chassis and the speaker.

I have the FT 817ND with a CW filter installed internally. Works great. May want to consider that route if you are a big fan of CW - which is about all I work.

73 de n4mj//glenn


 
PLEASE REMOVE all email addresses before you send it on and use BCC option when forwarding"
  Thank you! 



On Thursday, August 15, 2019, 11:13:58 AM CDT, John KK4ITX via Groups.Io <jleahy00@...> wrote:


I purchased and have almost completed the SSB Mite Filter but have not completed yet due to shortage of a 100k pot back that I have in my Florida inventory.

The question:  The manual on Page 2 implies that this filter will also work as a CW filter which I need for my FT-818.  The area of the following statement leads to nowhere that I can see:

"Alternately, it may be used as an addon audio filter internally, in conjunction with an existing receiver that might need a CW filter.  Each option has a different assembly sequence".

What I'm trying to do is attain a narrow filter without having two on board...……… any ideas where I should proceed, the options offered appear to only cover the volume ?

I did note the same statement in the Hyper Mite manual.

Appreciate any insight or pointing out my oversight,

John
KK4ITX



Click Here for Zephyrhills Area Amateur Radio Club
Many of life's failures are people who
did not realize how close they were to
success when they gave up.
       Thomas A. Edison     

Re: 40M Net

n4mj
 

David, KB1PJ, FWIW - you were the only station I was hearing last evening.  No net, just you.  I am curious if there is an actual net or is it just a watering hole for those who want to meet at a specified time/date.

If there was an actual net, with a NCS, I hope we didn't cause them QRM.

Maybe some of those who are closer to the 4S center-point will enlighten us.

73 de n4mj//glenn


 
PLEASE REMOVE all email addresses before you send it on and use BCC option when forwarding"
  Thank you! 



On Thursday, August 15, 2019, 07:52:36 AM CDT, David Speltz <dspeltz@...> wrote:


I have tried for months to join the net.  Now I know you hear me.  And I hear you.  But it would be helpful if someone could describe the protocol for hams like me who are trying to join the net without being a nuisance.  Honest,  But at least  I was heard!  That is good.

David KB1PJ
New Hampshire
#1885

SSB Mite

John - KK4ITX
 

I purchased and have almost completed the SSB Mite Filter but have not completed yet due to shortage of a 100k pot back that I have in my Florida inventory.

The question:  The manual on Page 2 implies that this filter will also work as a CW filter which I need for my FT-818.  The area of the following statement leads to nowhere that I can see:

"Alternately, it may be used as an addon audio filter internally, in conjunction with an existing receiver that might need a CW filter.  Each option has a different assembly sequence".

What I'm trying to do is attain a narrow filter without having two on board...……… any ideas where I should proceed, the options offered appear to only cover the volume ?

I did note the same statement in the Hyper Mite manual.

Appreciate any insight or pointing out my oversight,

John
KK4ITX



Click Here for Zephyrhills Area Amateur Radio Club
Many of life's failures are people who
did not realize how close they were to
success when they gave up.
       Thomas A. Edison     

Re: Hi-Per-Mite Center Frequency

Dale Hardin
 

John, I may want to mod the OCX for SSB until I get the code down pat.  I think a variable bandwith ssb/cw filter would be nice.  Is your variable cw filter wide enough for ssb?  If so, can you make the design available?
--
Dale Hardin, KS4NS
Elberta, AL