Date   

Re: MP/PM

Bill Cromwell
 

Hi,

I have used 24 hour time format (sometimes referred to as "military time) since my teens and I automatically see 16:00 when the little hand is the 4 and the big hand is on the 12 (remember hands?) with a westering sun. But other people - those who use "kindergarten time" use PM to mean after noon. Context is everything but can be inadequate.

73,

Bill  KU8H


On 05/27/2015 09:45 AM, w7aqk@... [4sqrp] wrote:
 

For us, here in the U.S., "MP" does tend to suggest the military police.  Any army vet would probably think of that first.  However, if you get a little more "worldly", the Brits refer to their representatives in Parliament as "MP's".  To further complicate things along that same line, if you use the term "PM", that refers to the Prime Minister!  It just "shows to go ya" how difficult it is for any acronym to have only a single connotation.  Yes, context helps, but all too often folks just make up their own stuff, and confusion results.  I see that a lot in posts, and also on CW, where there seems to be a propensity to try to shorten everything!

Dave W7AQK



Re: MP/PM

AA4GA <aa4ga@...>
 

On Wed, May 27, 2015 at 9:45 AM, w7aqk@... [4sqrp] <4sqrp@...> wrote:  

It just "shows to go ya" how difficult it is for any acronym to have only a single connotation.


Yep, only about 675 unique combinations of two letters!

73 de Lee, AA4GA


Re: MP/PM

w7aqk@...
 

For us, here in the U.S., "MP" does tend to suggest the military police.  Any army vet would probably think of that first.  However, if you get a little more "worldly", the Brits refer to their representatives in Parliament as "MP's".  To further complicate things along that same line, if you use the term "PM", that refers to the Prime Minister!  It just "shows to go ya" how difficult it is for any acronym to have only a single connotation.  Yes, context helps, but all too often folks just make up their own stuff, and confusion results.  I see that a lot in posts, and also on CW, where there seems to be a propensity to try to shorten everything!

Dave W7AQK


Re: Punk antenna

John C. Demuth - K8CQA
 

I have a 32-foot fiberglass pole which collapses to about 3 or 4 ft. total length.  I believe it was marketed by MFJ several years ago.  It has a loop on the top so you can attach a wire; you only need extend it as far as you want for a quarter-wave vertical on any band 10 through 40 meters.  It can be taped or tied to almost anything - fence, deck railing, etc..  It makes for very quick set-up.

72 de John - K8CQA - member #278
K8CQA@...
330-243-6701


Re: MP/PM

Bill Cromwell
 

Lee,

You are confused - Shore Patrol is not related to Man Portable.

73,

Bill. KU8H


Sent from my Galaxy S®III


-------- Original message --------
From: "AA4GA aa4ga@... [4sqrp]" <4sqrp@...>
Date:05/26/2015 16:19 (GMT-05:00)
To: 4sqrp@...,Michael McEwen
Subject: Re: [4sqrp] MP/PM

 

I thought "MP" was "Military Police" - or is that obsolete?

73 de Lee
--
Lee Hiers, AA4GA

Submit your QRP DXCC totals to www.qrpdx.com!


On Tue, May 26, 2015 at 4:02 PM, Michael McEwen mcewenk5osa@... [4sqrp] <4sqrp@...> wrote:
 

Sorry for reverting to old habits...MP used to mean "man portable" not PC now...I will try to remember PM...
_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412



Re: Punk antenna

Don Wilhelm <w3fpr@...>
 

Doc,

If you are only interested in 40 meters, the best solution is a dipole fed with coax and a push-up telescoping pole to support the center - a couple of test stakes and a bit of mason line will allow you to quickly erect an inverted Vee.

I like center fed antennas because they are less troublesome and have a low impedance feedpoint.

You might ask what happens if you do not have enough horizontal space for the inverted Vee configuration.  My solution is to create a vertical with one radial from the same antenna - use a 32 foot telescoping pole, and connect one end of the antenna to the top of that pole - push it up and string out the single radial (the other half of the dipole) along the ground or bushes as best you can (it can even bend a bit) - it will radiate just fine as a vertical.

The telescoping pole can be anchored to most any convenient vertical support with a couple of bungy cords.

The real solution is the 32 foot telescoping pole.  It can make a very versatile full size antenna for you.  It will be resonant so a tuner will not be required.

73,
Don W3FPR

On 5/25/2015 8:17 PM, Michael McEwen mcewenk5osa@... [4sqrp] wrote:
 
I have recently been given a neat 2 1/2 W crystal controlled transmitter (7.030 and 7.040 crystals).

My plan is to put together an ultraminimalist station.  Believe it or not, I have a Sony SW 7600 portable which receives CW really nicely. I have a tiny Whiterook Products MK-32 sideswiper key. And a 12V for the TX power. 

What I want is the simplest TX antenna that would work for this.  I could use my 40M dipole here at home, but I really want some smaller than that for taking the station to the park, picnics, etc.

The best idea I can up with is a hamstick, but I afraid that the efficiency will be so low as to simulate a dummy load.  Is there some kind of vertical other than a standard 1/4 wave I could use?  A full 1/4 wave vertical is a no-go.

I'd rather not use a tuner although I have a good one...I really would like this to be as simple as possible, just for grins...



Re: re anti-static mat

Dale Putnam
 

Wayne has experience with that exact mat.. so you're good to go.. as you already figured out..
Good Luck with the fix... and touch the ground with one hand often too...


Have a great day,
 
 
--... ...-- Dale - WC7S in Wy
 
 



To: 4sqrp@...
From: 4sqrp@...
Date: Tue, 26 May 2015 21:17:45 +0000
Subject: [4sqrp] re anti-static mat

 

Thanks for the info about cutting the mat.  Based on Dale's comment, I'm thinking maybe I should not cut it. I'll see if I can fold it or make it fit the work space somehow..

Tim, as for the snap location, with this one the snap is not installed so I can punch a hole in the mat and mount it in a convenient spot after I figure out exactly where I am going to put the mat.

73,

Sam, AL7V





RMRC today on 7.0625 and 20m

Dale Putnam
 

Lets try this.. lightning within 15mi tho...
now!
With any luck.. it will be gone in half hour for the 20m session.. on 14.0625 at 2245z
Have a great day,
 
 
--... ...-- Dale - WC7S in Wy
 
 


Re: anti-static mat

Sam Binkley <zut1369@...>
 

I replied before I saw  Wayne's post which is specific to the brand of mat I have . (Yahoo has a way of hiding emails)  So I will trim it to fit my work space. Thanks again.

Sam, AL7V



On Tuesday, May 26, 2015 7:55 AM, "Wayne Dillon wayne.dillon@... [4sqrp]" <4sqrp@...> wrote:


 
Sam,
No harm at all, We use Desco matting at work and I'm constantly "trimming them to size when we replace them. Try and organize it so that you keep the press-stud on the piece you want to use.
Blessings
Wayne - KC0PMH

--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
Membership Chairman - 4SQRP Group
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
CW Ragchewers Anonymous #40
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686



re anti-static mat

Sam Binkley <zut1369@...>
 

Thanks for the info about cutting the mat.  Based on Dale's comment, I'm thinking maybe I should not cut it. I'll see if I can fold it or make it fit the work space somehow..

Tim, as for the snap location, with this one the snap is not installed so I can punch a hole in the mat and mount it in a convenient spot after I figure out exactly where I am going to put the mat.

73,

Sam, AL7V




Re: MP/PM

AA4GA <aa4ga@...>
 

I thought "MP" was "Military Police" - or is that obsolete?

73 de Lee
--
Lee Hiers, AA4GA

Submit your QRP DXCC totals to www.qrpdx.com!


On Tue, May 26, 2015 at 4:02 PM, Michael McEwen mcewenk5osa@... [4sqrp] <4sqrp@...> wrote:
 

Sorry for reverting to old habits...MP used to mean "man portable" not PC now...I will try to remember PM...
_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412



MP/PM

Michael McEwen
 

Sorry for reverting to old habits...MP used to mean "man portable" not PC now...I will try to remember PM...
_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412


Punk, Part 2

Michael McEwen
 

Great discussion folks.  My issue may have been misunderstood...my bad.  I just wanted the simplest antenna for 40M CW for my homebrew rig tht I use to entice (I hope) people, especially kids, in to considering our avocation.  I do have a multiband/mode TXCVR and Par Endfedz and AlexLoop antennas for my "hard core" MP/portable ops.

I was hoping that my "no cabinet" open rig, simple "quick up" antenna and straight key might attract some people who assume our hobby is only for rich folks who spend many thousand $ for the super rigs/amps/antennas.  I have been donating copies of QST to Army libraries and public schools for years...by far the greatest interest has not been them but rather "radio in the park" with simple gear. 

My punk antenna to start is going to be a 40M hamstick mounted on a large pizza pan with 4 wire coat hanger radials attached by bolts/wing nuts.  I will appreciate any more discussion on the issue, but want to give this a test and post results.
_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412


Re: Punk antenna

Michael McEwen
 

Martin, I sold my 817 for three reasons:  weight incl external batt, complicated menues, and small display...it was a great radio in the shack, but not what I was looking for "in the field".  KX-3 looks great but is way $ for my "play radio" budget...that's why I kept looking and found the LNR LD-5...Everyone has favorites but it just depends on what you want/need.

_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412


On Tue, May 26, 2015 at 1:10 PM, 'Martin Huyett' huyettmeh@... [4sqrp] <4sqrp@...> wrote:
 

Dave (W7AQK) and Michael,

 

I’d be interested in any info you care to share about end fed half wave antennas you’ve had experience with, Dave, including the tuner and deployment of the actual antenna, counterpoise, etc. Like Michael I’m playing with the idea of taking a QRP setup with me on a hike in Glacier National Park and have been trying different antennas in my back yard. I describe in some detail what I’ve tried and my experiences so far on my web pages starting at http://www.huyettm.net/portable-antennas.html. The two rigs I am contemplating are my Yaesu FT817nd and a TenTec R4020. I love the full range of the 817 but wish it didn’t weigh 3 pounds! And in the end I may not take anything, given it is a six day wilderness trip and weight will be a premium. But it is fun to play with the stuff anyway.

 

Have fun, Michael!

 

Martin

K0BXB

 

From: 4sqrp@... [mailto:4sqrp@...]
Sent: Tuesday, May 26, 2015 7:27 AM
To: 4sqrp@...
Subject: [4sqrp] Re: Punk antenna

 

 

Hi Michael,

You will probably get some pretty good antenna suggestions here, but I want to caution you in case this might be your first attempt at QRP.  Since 40 meters is the band you will be using, the antenna you select needs to be as good as you can possibly make it.  So, if there is any way you could go with a dipole, and maybe even just one of those collapsible poles for a support, you may find that works a lot better.  I've operated QRP on 40 a bunch, and often with just something much simpler, like an MP-1 or similar, but 40 is a tough band for using small portable antenna systems like that.  You really need to pay attention to putting out a good ground radial system.  If you do, you can have some very good results with smaller systems like that.  An End Fed Half Wave, or even one of the Mag Loops might be a good option too, but both have some disadvantages.  Even a random wire and a counterpoise can work well, but you probably would need some kind of tuner.  There are some very good small tuners--like a Z match--that will do a good job and not take up much space in your pack. 

Check out what some of the SOTA folks are using for antennas.  They usually have it down to a science as far as keeping things as simple as possible while still being effective. 

Good luck and hope you have lots of fun with that rig.  QRP is a hoot once you get into it.

Dave W7AQK



Re: Punk antenna

Martin Huyett <huyettmeh@...>
 

Dave (W7AQK) and Michael,

 

I’d be interested in any info you care to share about end fed half wave antennas you’ve had experience with, Dave, including the tuner and deployment of the actual antenna, counterpoise, etc. Like Michael I’m playing with the idea of taking a QRP setup with me on a hike in Glacier National Park and have been trying different antennas in my back yard. I describe in some detail what I’ve tried and my experiences so far on my web pages starting at http://www.huyettm.net/portable-antennas.html. The two rigs I am contemplating are my Yaesu FT817nd and a TenTec R4020. I love the full range of the 817 but wish it didn’t weigh 3 pounds! And in the end I may not take anything, given it is a six day wilderness trip and weight will be a premium. But it is fun to play with the stuff anyway.

 

Have fun, Michael!

 

Martin

K0BXB

 

From: 4sqrp@... [mailto:4sqrp@...]
Sent: Tuesday, May 26, 2015 7:27 AM
To: 4sqrp@...
Subject: [4sqrp] Re: Punk antenna

 

 

Hi Michael,

You will probably get some pretty good antenna suggestions here, but I want to caution you in case this might be your first attempt at QRP.  Since 40 meters is the band you will be using, the antenna you select needs to be as good as you can possibly make it.  So, if there is any way you could go with a dipole, and maybe even just one of those collapsible poles for a support, you may find that works a lot better.  I've operated QRP on 40 a bunch, and often with just something much simpler, like an MP-1 or similar, but 40 is a tough band for using small portable antenna systems like that.  You really need to pay attention to putting out a good ground radial system.  If you do, you can have some very good results with smaller systems like that.  An End Fed Half Wave, or even one of the Mag Loops might be a good option too, but both have some disadvantages.  Even a random wire and a counterpoise can work well, but you probably would need some kind of tuner.  There are some very good small tuners--like a Z match--that will do a good job and not take up much space in your pack. 

Check out what some of the SOTA folks are using for antennas.  They usually have it down to a science as far as keeping things as simple as possible while still being effective. 

Good luck and hope you have lots of fun with that rig.  QRP is a hoot once you get into it.

Dave W7AQK


Re: Punk antenna

Michael McEwen
 

Very simple and elegant design...TNX...
_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412


On Tue, May 26, 2015 at 8:31 AM, LARRY MAKOSKI w2lj@... [4sqrp] <4sqrp@...> wrote:
 

PAC-12 antenna works reasonably well. Small vertical, which can either be commercially purchased or homebrewed. I used the homebrewed version for years.
 
Here's a link to the homebrew instructions: http://www.njqrp.org/pac-12/
 
73 de Larry W2LJ
QRP - When you care to send the very least!



Re: anti-static mat

Wayne Dillon
 

Sam,
No harm at all, We use Desco matting at work and I'm constantly "trimming them to size when we replace them. Try and organize it so that you keep the press-stud on the piece you want to use.
Blessings
Wayne - KC0PMH

--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
Membership Chairman - 4SQRP Group
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
CW Ragchewers Anonymous #40
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


Re: Punk antenna

LARRY MAKOSKI <w2lj@...>
 

PAC-12 antenna works reasonably well. Small vertical, which can either be commercially purchased or homebrewed. I used the homebrewed version for years.
 
Here's a link to the homebrew instructions: http://www.njqrp.org/pac-12/
 
73 de Larry W2LJ
QRP - When you care to send the very least!


Re: Punk antenna

Donald Sanders
 

Michael, Some good suggestions from others. 
QRPMEkits has a nice small ant tuner as a kit if you decide to use one.
I have used both a full sized dipole as inverted Vee- requires at least 40 foot each side of the center support -but is most efficient and a reduced length of 50 feet and loading coils at 50 to 60 percent of distance toward the end from the center. Both are efficient. 
Short run of RG 174(30 feet) or longer run of RG58C(40 to 50 feet) will do well for feed line.  Look on internet for program "LODIPOLE" . It will help design the loaded dipole and the coils needed.
100 feet of nylon rope can be used to pull it up into a tree.
For a center mast, a jacpole or at least a 7 meter telescoping pole will do. SOTA in England has a nice telescoping pole. 
Also 4 or 5 telescoping sections of PVC pipe can make a center mast. Length of each section as needed for easy transport. I have my mast in 10 feet(3 meter) lengths of 1 inch and 1/2 inch PVC and it works well for a 20 foot mast. Overlap 6 inches and I use adj clamp for portable setup with 3 inch slits in the end of the 1 inch PVC. Tie it to what ever support is available
I also use two as home base masts for ends of a 44 foot inv vee fed with 300 ohm line. The center is a 10 meter bamboo pole.

Dr. Don HC4/W4BWS

On Mon, May 25, 2015 at 7:17 PM, Michael McEwen mcewenk5osa@... [4sqrp] <4sqrp@...> wrote:
 

I have recently been given a neat 2 1/2 W crystal controlled transmitter (7.030 and 7.040 crystals).

My plan is to put together an ultraminimalist station.  Believe it or not, I have a Sony SW 7600 portable which receives CW really nicely. I have a tiny Whiterook Products MK-32 sideswiper key. And a 12V for the TX power. 

What I want is the simplest TX antenna that would work for this.  I could use my 40M dipole here at home, but I really want some smaller than that for taking the station to the park, picnics, etc.

The best idea I can up with is a hamstick, but I afraid that the efficiency will be so low as to simulate a dummy load.  Is there some kind of vertical other than a standard 1/4 wave I could use?  A full 1/4 wave vertical is a no-go.

I'd rather not use a tuner although I have a good one...I really would like this to be as simple as possible, just for grins...
_ _ ...   .. _ _ _

Doc K5OSA - QTH: EM04sr
ARRL  
4SQRP #801 - NAQCC #7625 - SKCC #10098
FISTS #17157 - OMISS #9886
LFSARC (Lawton/Fort Sill Amateur Radio Club)

Michael T McEwen
Lt Col, US Army, Ret

Cellular Phone:  580 919-9205
Residence:  580 529-3412



Re: anti-static mat

Tim N9PUZ
 

With the mats I'm familiar with the only downside to cutting it is the piece you remove may not have a snap to attach the ground connection. That's a minor detail and you may not even care about the extra piece.

Tim N9PUZ

On 5/26/2015 8:09 AM, Sam Binkley zut1369@yahoo.com [4sqrp] wrote:
Greetings,

I recently purchased a Desco anti-static mat in anticipation of doing
some work inside my K3. It appears to be of excellent quality and is on
the list suggested by Elecraft for ESD protection. My question for the
group: would there be any harm in cutting the mat? It is about twice
as large as my available work space and I would like to cut it in half.
Thanks in advance for suggestions.

Sam, AL7V
Juneau, AK
4SQRP #472

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