Date   

Re: TennaDipper, Phasers, OHR WM-2, Rasp PI4B

JT Croteau
 

Phasers still available, everything else has been sold. Thanks

N1ESE

On Wed, May 13, 2020 at 11:18 AM JT Croteau <jt.tobit@...> wrote:

Need to find a new home for some shack projects. I've been having too
much fun with a new radio and need to fund some final installing items
for it.

QRPKits Tenna Dipper, nicely built and works well. $42
http://qrpkits.com/tennadipperII.html

OHR WM-2 QRP Wattmeter - Freshly built, not issues. $95

Raspberry PI 4B 2GB, two piece aluminum heatsink, with Adafruit GPS
HAT and external antenna. No issues, been running Gentoo Linux for
several months. $60

80M and 30M Phaser FT8 rigs from Midnite Design. These are serial
Nos. 75 and 76. I took great care to assemble these but do not have
the time to get them on the air to verify they are working FB. They
tested well during assembly and should work but I''m going to offer
these as a pair for a low price since I can't test. $75 for both.

All prices include Priority Mail shiipping. Thanks for looking.

N1ESE


Re: SSS Results

Ed Meyer, WG5F
 

K4BAI accounted for 50% of my score this month!
72,
-Ed, WG5F-


Re: FS: TennaDipper, Phasers, OHR WM-2, Rasp PI4B

Bobby Rolph
 

GM. I would like the pi4 with the GPS hat. Just send me your payment info. 73
Bobby Rolph

On Wednesday, May 13, 2020, 12:19 PM, JT Croteau <jt.tobit@...> wrote:

Need to find a new home for some shack projects.  I've been having too
much fun with a new radio and need to fund some final installing items
for it.

QRPKits Tenna Dipper, nicely built and works well. $42

OHR WM-2 QRP Wattmeter - Freshly built, not issues. $95

Raspberry PI 4B 2GB, two piece aluminum heatsink, with Adafruit GPS
HAT and external antenna.  No issues, been running Gentoo Linux for
several months.  $60

80M and 30M Phaser FT8 rigs from Midnite Design.  These are serial
Nos. 75 and 76.  I took great care to assemble these but do not have
the time to get them on the air to verify they are working FB.  They
tested well during assembly and should work  but I''m going to offer
these as a pair for a low price since I can't test.  $75 for both.

All prices include Priority Mail shiipping.  Thanks for looking.

N1ESE




FS: TennaDipper, Phasers, OHR WM-2, Rasp PI4B

JT Croteau
 

Need to find a new home for some shack projects. I've been having too
much fun with a new radio and need to fund some final installing items
for it.

QRPKits Tenna Dipper, nicely built and works well. $42
http://qrpkits.com/tennadipperII.html

OHR WM-2 QRP Wattmeter - Freshly built, not issues. $95

Raspberry PI 4B 2GB, two piece aluminum heatsink, with Adafruit GPS
HAT and external antenna. No issues, been running Gentoo Linux for
several months. $60

80M and 30M Phaser FT8 rigs from Midnite Design. These are serial
Nos. 75 and 76. I took great care to assemble these but do not have
the time to get them on the air to verify they are working FB. They
tested well during assembly and should work but I''m going to offer
these as a pair for a low price since I can't test. $75 for both.

All prices include Priority Mail shiipping. Thanks for looking.

N1ESE


Re: HI-PER-MITE parts question

nm0s_qrp
 

Check out the schematic for the SSB-Mite.  It shows how to do it explicitly, and you can just bring that mod directly over to the HiPerMite.


SSS Results

John Lonigro
 

Well, we had a good turnout Sunday night.  Fifteen people entered the contest, three of whom entered for the first time.  Welcome to Peter (AA2VG) from Huntington, NY; Scott (W5ESE) from Dripping Springs, TX; and Woody (K1LB) from Reno, NV.  I hope you three become regular entrants in the 4SQRP Second Sunday Sprints.  And thanks to all for participating.

The winner for May is John (K4BAI) with 29 QSO points. Congratulations to John on is fine score.  For the year, Chas (W2SH) is still in the lead with 81 points, followed by John (K4BAI) with 75 points.  Coming in third is Nick (WB5BKL) with 51 points.  I tally points separately from the website where you enter your score and haven't checked that site lately, to see if we still agree. Hope so.  Unless someone brings a discrepancy to my attention, I'm using my official spreadsheet to determine monthly winners, as well as the overall winner for the year.  And, if there is a discrepancy, I keep screen shots of each month's results and am able to go back and make corrections if necessary.  But, as we all know, I never make mistooks (hi).

Cngratulations again to K4BAI.  He will receive the May certificate for most QSO points shortly.

72 to all and please stay safe,

John, AA0VE
4SQRP Contest Coordinator


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 05/13/2020 20:00-21:00 #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 13 May 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/AC0BQ

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny AC0BQ.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.


Re: Attic?

Michael McEwen
 

Suggestions for G5RV designs?

73 Doc K5OSA 

On Tue, May 12, 2020, 14:53 Michael McEwen <michael.t.mcewen@...> wrote:
Great idea.  I'll put the GR5 option on the "to try" list.

73 Doc K5OSA 

On Tue, May 12, 2020, 08:35 Wayne Dillon <wayne.dillon@...> wrote:
Worked 2 of my 1000 mile/watt awards with an attic mounted 1/2 size G5RV (mounted at the ridge) with normal shingles. It actually proved better on 40 than an outdoors 134'6" wahr/9:1 unun. Mu current location has a metal roof so I'm going the "ground mounted vertical" route (as soon as the rain stops!)
Be blessed all,
Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
God Bless from Wayne Dillon - NQ0RP

Fate whispered to courageous "You cannot withstand the storm"
Courageous  whispered back "I am the storm"


Re: Attic?

Michael McEwen
 

Great idea.  I'll put the GR5 option on the "to try" list.

73 Doc K5OSA 

On Tue, May 12, 2020, 08:35 Wayne Dillon <wayne.dillon@...> wrote:
Worked 2 of my 1000 mile/watt awards with an attic mounted 1/2 size G5RV (mounted at the ridge) with normal shingles. It actually proved better on 40 than an outdoors 134'6" wahr/9:1 unun. Mu current location has a metal roof so I'm going the "ground mounted vertical" route (as soon as the rain stops!)
Be blessed all,
Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
God Bless from Wayne Dillon - NQ0RP

Fate whispered to courageous "You cannot withstand the storm"
Courageous  whispered back "I am the storm"


Re: Attic?

Michael McEwen
 

TNX!!!! Doc K5OSA 


On Mon, May 11, 2020, 18:54 Thomas Martin <tem494@...> wrote:
Doc
I used an end fed with balun while living in Manvel Tx I worked all over Europe England Africa Centeral American and South America 
If your roof has the heat reflecting foil it doesn’t work well but regular construction works great.

Tom
K0amd
On Monday, May 11, 2020, Michael McEwen <michael.t.mcewen@...> wrote:
There is no metal above the attic of our conventional construction home. The roof is shingle over frame.   What's the effect if I put a ENDFEDZ  10.20.40 up there?  Covenants don't allow obvious outdoor types.

72, Doc K5OSA 


Re: Attic?

david gauding
 

I never had much luck with end-feds in the attic. I was a new ham at that time and did not fully understand how to ground the antenna effectively from up there.

However, I did install a tuned doublet in the attic and used it for over ten years with good results. Achieved WAS, WAC and 130 DXCC countries on CW. All of this was done on QRP.

I operated from a two-story townhouse condo in two different locations. Used a 33' radiator across the diagonal and added 16.5' on the ends to get 10-40M coverage. Later added slinkys to the ends to increase coverage to 10-80M. From overhead the basic antenna looked like the letter "Z".

Using borrowed rigs I could operate 160M feeding the complete antenna against ground. I found that quite amazing at the time.

The feedline was usually 300 ohm line. I snaked it from the attic to the basement shack using space along side a forced air duct.

Before trying the attic antenna I tuned a rain gutter & downspout assembly that covered 10-80M. I always recommend trying that first to get on the air quickly. My best results were usually on 40M and 80M followed by 20M.

Dave Gauding, NF0R



Re: HI-PER-MITE parts question

Wesley Matthews
 

Nick-

could you share how you wired one pot to substitute for 2 resisters please? I’m at that stage right now in a Century 21 filter upgrade. 


Thanks
--
73

Wes
W3KW

Happy Hamming.


Hi-Per-Mite integration in a Ten-Tec Century 21

Wesley Matthews
 

Hello fellow hams and 4S QRP’ers...

I built a Hi-PerMite with the intention of inserting it, with a bypass switch, between the pre-amp board and the main audio amp board, in my Ten-Tec Century 21. I tried a Laserbeam my Sotabeamns, and a DSP filter by BHi but I didn’t care for the results. This is my question: which gain level should I configure the Hi-Per-Mite to exhibit? I already built it for 50db gain, but I have another, unbuilt, I could configure differently.

Alternatively, I see there is an adjustable gain option using a pot. The directions, and other threads mention using a pot, but the directions say ‘use a pot for R11 AND R12.’ How would I wire that using one pot? How many ohms should I select to keep the output of the board in the higher dB gain area?

I’m a tinkerer, not an engineer and need some help with that. 

Thanks in advance!
--
73

Wes
W3KW

Happy Hamming.


Re: Attic?

Mike Sanders
 

Amen. We are finding out from WSPR and other digital modes about
propagation we never knew before.
Using WSPR at mw levels can tell us volumes about our antennas, station
equipment and prop in almost an
instant. Good post. Thanks es 73, Mike K0AZ

On 5/11/2020 9:50 PM, John - KK4ITX via groups.io wrote:
Doc,

Opinions and suggestions are great but I have found that trying is
best.... because each location is different for way too many reasons
to cover here.  You may find that a Dipole works better ?

Build the endfed, should be less than $10 at QRP levels.  See how it
works. If it doesn’t work out you already have the coax run to try
something else.  I have many failures in my shed and it’s part of the
hobby.

I use a 35ft EF and cover the U.S., Canada and more at both *QRP* and
*WSPR* levels, from Florida.

To see how my antenna is performing I use *WSPR*....... yes it is a
Digital Mode but what it tells me is that my 5w CW should be heard
wherever WSPR reports hearing me at just a 200mw signal.  A 200mw
signal is equal to about 4w CW.  The comparison between my Vertical
and the EF is quite clear........ sometimes better or not, I use
*WSPR* to help me to determine which antenna to use.

Using WSPR will tell you more about your system than just about
anything else because it’s a real time result, not theory..... doesn’t
depend on perfect CW for the RBN to decode.

We are fortunate to now have tools (FREE) at our disposal that can
give us real time answers to which antenna is best......... at this
minute !

72,

John
KK4ITX

/*Visit: *www.zaarc.org <http://www.zaarc.org>.   👁/

On May 11, 2020, at 20:42, w2sh@... <mailto:w2sh@...> wrote:

Another suggestion is to view the June 1949 QST with several indoor
antenna designs.

72,

Charles, W2SH
------------------------------------------------------------------------
*From:* main@4SQRP.groups.io <mailto:main@4SQRP.groups.io>
<main@4SQRP.groups.io <mailto:main@4SQRP.groups.io>> on behalf of
John Nicholas <stnick@... <mailto:stnick@...>>
*Sent:* Monday, May 11, 2020 20:25
*To:* main@4sqrp.groups.io <mailto:main@4sqrp.groups.io>
<main@4SQRP.groups.io <mailto:main@4SQRP.groups.io>>
*Subject:* Re: [4SQRP] Attic?
My Elmer,  has the same problem.  He has lived 25 years in this home.
 Multiple antennas in his attic.  He does just fine.  The biggest
thing is they are closer to the ground.  You should check the
October, 2007 issue of QST. Article on a 48' end fed in the attic
with a J-Pole.  There would be many variations on this one.

FYI:   If the metal foil is on the rafters or part of the roof
sheathing, it will cause problems.  It is  a radiant barrier.  South
of 34* N in CONUS they have some value for efficiency.  If it is just
stretched out across the ceiling joists and insulation,  you can
remove it.  That installation is just expensive snake oil.  My day
job is a Home Energy Auditor.

73 KE0ZUW  John

On May 11, 2020, at 6:47 PM, Michael McEwen
<michael.t.mcewen@... <mailto:michael.t.mcewen@...>> wrote:

There is no metal above the attic of our conventional construction
home. The roof is shingle over frame.   What's the effect if I put a
ENDFEDZ  10.20.40 up there?  Covenants don't allow obvious outdoor
types.

72, Doc K5OSA

--
Charles Moizeau, W2SH

--
This email has been checked for viruses by AVG.
https://www.avg.com


Re: Attic?

Wayne Dillon
 

Worked 2 of my 1000 mile/watt awards with an attic mounted 1/2 size G5RV (mounted at the ridge) with normal shingles. It actually proved better on 40 than an outdoors 134'6" wahr/9:1 unun. Mu current location has a metal roof so I'm going the "ground mounted vertical" route (as soon as the rain stops!)
Be blessed all,
Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
God Bless from Wayne Dillon - NQ0RP

Fate whispered to courageous "You cannot withstand the storm"
Courageous  whispered back "I am the storm"


Re: Attic?

John - KK4ITX
 

Doc,

Opinions and suggestions are great but I have found that trying is best.... because each location is different for way too many reasons to cover here.  You may find that a Dipole works better ?

Build the endfed, should be less than $10 at QRP levels.  See how it works. If it doesn’t work out you already have the coax run to try something else.  I have many failures in my shed and it’s part of the hobby.

I use a 35ft EF and cover the U.S., Canada and more at both QRP and WSPR levels, from Florida.

To see how my antenna is performing I use WSPR....... yes it is a Digital Mode but what it tells me is that my 5w CW should be heard wherever WSPR reports hearing me at just a 200mw signal.  A 200mw signal is equal to about 4w CW.  The comparison between my Vertical and the EF is quite clear........ sometimes better or not, I use WSPR to help me to determine which antenna to use.

Using WSPR will tell you more about your system than just about anything else because it’s a real time result, not theory..... doesn’t depend on perfect CW for the RBN to decode.  

We are fortunate to now have tools (FREE) at our disposal that can give us real time answers to which antenna is best......... at this minute !

72,

John
KK4ITX 

Visit:  www.zaarc.org.   👁

On May 11, 2020, at 20:42, w2sh@... wrote:

Another suggestion is to view the June 1949 QST with several indoor antenna designs.

72,

Charles, W2SH

From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of John Nicholas <stnick@...>
Sent: Monday, May 11, 2020 20:25
To: main@4sqrp.groups.io <main@4SQRP.groups.io>
Subject: Re: [4SQRP] Attic?
 
My Elmer,  has the same problem.  He has lived 25 years in this home.  Multiple antennas in his attic.  He does just fine.  The biggest thing is they are closer to the ground.  You should check the October, 2007 issue of QST. Article on a 48' end fed in the attic with a J-Pole.  There would be many variations on this one.

FYI:   If the metal foil is on the rafters or part of the roof sheathing, it will cause problems.  It is  a radiant barrier.  South of 34* N in CONUS they have some value for efficiency.  If it is just stretched out across the ceiling joists and insulation,  you can remove it.  That installation is just expensive snake oil.  My day job is a Home Energy Auditor.

73 KE0ZUW  John

On May 11, 2020, at 6:47 PM, Michael McEwen <michael.t.mcewen@...> wrote:

There is no metal above the attic of our conventional construction home. The roof is shingle over frame.   What's the effect if I put a ENDFEDZ  10.20.40 up there?  Covenants don't allow obvious outdoor types.

72, Doc K5OSA 


--
Charles Moizeau, W2SH


Re: Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 05/13/2020 20:00-21:00 #cal-reminder

Martin
 

I have had the 4SQRP NS-40+VXO, SS-40 and Magic Box for some time. Bought them as kits, built and used them. They were all work as far as i know. The NS-40 has the VXO circuit installed in the cabinet with it and a switch selects it or a xtal jack on the front. The cabinets are DIY that I built.

I have not used them for several years and they need a home as I have moved on. Perhaps someone can put them to use and enjoy them. I've long since lost track of what I paid or what they might be worth so I'm suggesting $110 for the batch including shipping in the US. But feel free to make me an offer.

Thanks,
Martin
K0BXB

On Mon, May 11, 2020 at 8:00 PM main@4SQRP.groups.io Calendar <main@4sqrp.groups.io> wrote:

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 13 May 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP Operator to be determined.

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 
The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operators are Johnny AC0BQ or Paul N0NBD.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 05/13/2020 20:00-21:00 #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 13 May 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP Operator to be determined.

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 
The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operators are Johnny AC0BQ or Paul N0NBD.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.


Re: Attic?

w2sh@...
 

Another suggestion is to view the June 1949 QST with several indoor antenna designs.

72,

Charles, W2SH


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of John Nicholas <stnick@...>
Sent: Monday, May 11, 2020 20:25
To: main@4sqrp.groups.io <main@4SQRP.groups.io>
Subject: Re: [4SQRP] Attic?
 
My Elmer,  has the same problem.  He has lived 25 years in this home.  Multiple antennas in his attic.  He does just fine.  The biggest thing is they are closer to the ground.  You should check the October, 2007 issue of QST. Article on a 48' end fed in the attic with a J-Pole.  There would be many variations on this one.

FYI:   If the metal foil is on the rafters or part of the roof sheathing, it will cause problems.  It is  a radiant barrier.  South of 34* N in CONUS they have some value for efficiency.  If it is just stretched out across the ceiling joists and insulation,  you can remove it.  That installation is just expensive snake oil.  My day job is a Home Energy Auditor.

73 KE0ZUW  John

On May 11, 2020, at 6:47 PM, Michael McEwen <michael.t.mcewen@...> wrote:

There is no metal above the attic of our conventional construction home. The roof is shingle over frame.   What's the effect if I put a ENDFEDZ  10.20.40 up there?  Covenants don't allow obvious outdoor types.

72, Doc K5OSA 


--
Charles Moizeau, W2SH


Re: Attic?

John Nicholas
 

My Elmer,  has the same problem.  He has lived 25 years in this home.  Multiple antennas in his attic.  He does just fine.  The biggest thing is they are closer to the ground.  You should check the October, 2007 issue of QST. Article on a 48' end fed in the attic with a J-Pole.  There would be many variations on this one.

FYI:   If the metal foil is on the rafters or part of the roof sheathing, it will cause problems.  It is  a radiant barrier.  South of 34* N in CONUS they have some value for efficiency.  If it is just stretched out across the ceiling joists and insulation,  you can remove it.  That installation is just expensive snake oil.  My day job is a Home Energy Auditor.

73 KE0ZUW  John

On May 11, 2020, at 6:47 PM, Michael McEwen <michael.t.mcewen@...> wrote:

There is no metal above the attic of our conventional construction home. The roof is shingle over frame.   What's the effect if I put a ENDFEDZ  10.20.40 up there?  Covenants don't allow obvious outdoor types.

72, Doc K5OSA