Date   

Re: antenna issue found

George H. Gates
 

One of the ham mags had a article about using a tree as a vertical. Don't remember the issue or what the conclusion was. Must not have been good or guys would be using it for portable work!  72 Geo/W2BPI
 

In a message dated 3/12/2013 5:47:14 A.M. Eastern Daylight Time, bbarley48@... writes:
 

- I think the answer here might be, "Yes - but..." Even at QRP power levels, there can be varying amounts of interplay depending on where the tree is touching the antenna along the voltage/current (impedance) profile of the antenna. The affect can also be influenced with how wet or dry is the bark of the tree. There was an article years ago about the US Military using living trees as vertical antennas... not overwhelming results if I remember correctly....

72,
Bruce - KK0S

--- In 4sqrp@..., Nick-WA5BDU wrote:
>
> My antenna wires touch tree limbs all the time. That shouldn't cause
> you any problems.
>
> 72,
>
> Nick, WA5BDU
>
> On 3/10/2013 7:20 PM, Dg Arnholt wrote:
> > kinda thought it was that. still the kenwood shuting down is a
> > mystery..i didnt think it had swr shut down.. hope the finals are ok.
> > oh yeah the antenna problem simple :) wire touching a tree..gonna get
> > a rope and pull it off and in the future get some help to move the
> > antenna leg. i would cut the tree but this is rental property
> >
> > <http://groups.yahoo.com/group/4sqrp/post;_ylc=X3oDMTJwMGdzcWM5BF9TAzk3MzU5NzE0BGdycElkAzg3MDE2MjU2BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM2NDUEc2VjA2Z0cgRzbGsDcnBseQRzdGltZQMxMzYyOTYxMjIz?act=reply&messageNum=645>
> >
> >
> >
> >
> >
>


Re: antenna issue found

KK0S
 

- I think the answer here might be, "Yes - but..." Even at QRP power levels, there can be varying amounts of interplay depending on where the tree is touching the antenna along the voltage/current (impedance) profile of the antenna. The affect can also be influenced with how wet or dry is the bark of the tree. There was an article years ago about the US Military using living trees as vertical antennas... not overwhelming results if I remember correctly....

72,
Bruce - KK0S

--- In 4sqrp@..., Nick-WA5BDU <nick-wa5bdu@...> wrote:

My antenna wires touch tree limbs all the time. That shouldn't cause
you any problems.

72,

Nick, WA5BDU

On 3/10/2013 7:20 PM, Dg Arnholt wrote:
kinda thought it was that. still the kenwood shuting down is a
mystery..i didnt think it had swr shut down.. hope the finals are ok.
oh yeah the antenna problem simple :) wire touching a tree..gonna get
a rope and pull it off and in the future get some help to move the
antenna leg. i would cut the tree but this is rental property

<http://groups.yahoo.com/group/4sqrp/post;_ylc=X3oDMTJwMGdzcWM5BF9TAzk3MzU5NzE0BGdycElkAzg3MDE2MjU2BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM2NDUEc2VjA2Z0cgRzbGsDcnBseQRzdGltZQMxMzYyOTYxMjIz?act=reply&messageNum=645>





Re: Pig Rig

Mike Fairleigh
 

#199 arrived today – fast, like a greased pig!

 

73,

Mike, KC0KBC


Re: Multi-Freq Pig Rig

Todd K7TFC
 

I was thinking about using single pin sockets cut from a female "breakaway" header. I'd just install them in the pcb holes already provided. Here's a link to a source and picture. They're handy for a lot of hack jobs.


73,

Todd
------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design


On Mon, Mar 11, 2013 at 8:12 PM, David Martin <davemrtn@...> wrote:
 

Great idea......

The crystals are spaced at .200", but the problem is the "individual crystal" leads are spaced at .200" apart and a dip socket spacing (one side to the other) is .300"

You might use a "wire-wrap" socket which has longer pins and bend them to fin into the .200" spacing thus adapting the crystal lead spacing to .300" allowing crystals piggy-backed (no pun intended) on a dip socket to be used.

Excellent idea about putting all crystals on one dip socket then rotate socket to swap frequencies.



On 03/11/2013 09:41 PM, casey kerchner wrote:
 

While using a switch is pretty much out, has anyone given thought to adding an IC Socket and mounting the Rocks on a DIP Plug (or header)? Then it should be quick and easy to change frequency. And it they were plugged in backwards, it would not matter. Or go to a 16 pin DIP, with one side for the 7.031 Xtals and the other side for 7122, just reverse the plug to change freq. Just a thought.

73 de Keith ~ KC9IH ~ in Northern IL

~ ex-WD9GKA ~ ex-WB9HCL ~ ex-K9UCF
10-X 38221, SKCC 9396, NAQCC 6165,
QRP ARCI 5435, Flying Pigs 2926,
GORC 414, MI QRP 1163, 4SQRP



--
David Martin - K5DCM ---o0o---
Mountain Home, Arkansas

Guns don't kill people, any more than spoons & forks cause obesity.

 



Re: Multi-Freq Pig Rig

David Martin <davemrtn@...>
 

Great idea......

The crystals are spaced at .200", but the problem is the "individual crystal" leads are spaced at .200" apart and a dip socket spacing (one side to the other) is .300"

You might use a "wire-wrap" socket which has longer pins and bend them to fin into the .200" spacing thus adapting the crystal lead spacing to .300" allowing crystals piggy-backed (no pun intended) on a dip socket to be used.

Excellent idea about putting all crystals on one dip socket then rotate socket to swap frequencies.


On 03/11/2013 09:41 PM, casey kerchner wrote:
 

While using a switch is pretty much out, has anyone given thought to adding an IC Socket and mounting the Rocks on a DIP Plug (or header)? Then it should be quick and easy to change frequency. And it they were plugged in backwards, it would not matter. Or go to a 16 pin DIP, with one side for the 7.031 Xtals and the other side for 7122, just reverse the plug to change freq. Just a thought.

73 de Keith ~ KC9IH ~ in Northern IL

~ ex-WD9GKA ~ ex-WB9HCL ~ ex-K9UCF
10-X 38221, SKCC 9396, NAQCC 6165,
QRP ARCI 5435, Flying Pigs 2926,
GORC 414, MI QRP 1163, 4SQRP



--
David Martin - K5DCM ---o0o---
Mountain Home, Arkansas

Guns don't kill people, any more than spoons & forks cause obesity.

 


Re: Perfect pig rig accessory

KD4OBQ
 

Looks like a perfect cloths line. Even though a little high but could work just fine. Might have to try one with some #10 and wooden fence poles with an insulator in the centre and compare it with a loop and also use it for hanging out cloths.

72
Pat
____________________________________________________________
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Re: Multi-Freq Pig Rig

Todd K7TFC
 

On Mon, Mar 11, 2013 at 7:41 PM, casey kerchner <kc9ih@...> wrote:
 
 While using a switch is pretty much out, has anyone given thought to adding an IC Socket and mounting the Rocks on a DIP Plug (or header)? Then it should be quick and easy to change frequency.

Casey,

That's what I'm going to do. X1 will be easy to do. X2-X4 will be a little trickier. I'm going to try to "unitize" them with a second ground bus wire across the top for strength. Each will get it's own 2-pin socket, and the ground wire will get a single. I'll solder the sockets in place, install the xtals and ground lead, and then solder the two buses across the top. With a little wiggling, the whole set ought to come out, leaving C17 and C18 in place. 

The other issue here, of course, is that any other xtals have to be matched as a set. I'd like to know more about that.
 
73,

Todd
------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design



Re: antenna issue found

Todd K7TFC
 

On Mon, Mar 11, 2013 at 6:53 PM, Nick-WA5BDU <nick-wa5bdu@...> wrote:

My antenna wires touch tree limbs all the time.  That shouldn't cause you any problems.

Does it make a difference if the wire is insulated or bare when it touches trees?
 
73,

Todd
------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design




72,

Nick, WA5BDU

On 3/10/2013 7:20 PM, Dg Arnholt wrote:
 
kinda thought it was that. still the kenwood shuting down is a mystery..i didnt think it had swr shut down.. hope the finals are ok. 
oh yeah the antenna problem simple :) wire touching a tree..gonna get a rope and pull it off and in the future get some help to move the antenna leg. i would cut the tree but this is rental property








Multi-Freq Pig Rig

Casey
 

While using a switch is pretty much out, has anyone given thought to adding an IC Socket and mounting the Rocks on a DIP Plug (or header)? Then it should be quick and easy to change frequency. And it they were plugged in backwards, it would not matter. Or go to a 16 pin DIP, with one side for the 7.031 Xtals and the other side for 7122, just reverse the plug to change freq. Just a thought.

73 de Keith ~ KC9IH ~ in Northern IL

~ ex-WD9GKA ~ ex-WB9HCL ~ ex-K9UCF
10-X 38221, SKCC 9396, NAQCC 6165,
QRP ARCI 5435, Flying Pigs 2926,
GORC 414, MI QRP 1163, 4SQRP


Pig rig 192

Scotty Long <nu0s@...>
 

Pig rig 192 all inventoried with no missing parts; great board with this kit Diz. Now back to work on the K1...

72/73/Scotty/NUØS

Sent from my Verizon Wireless 4G LTE DROID


Re: antenna issue found

Nick-WA5BDU
 

My antenna wires touch tree limbs all the time.  That shouldn't cause you any problems.

72,

Nick, WA5BDU

On 3/10/2013 7:20 PM, Dg Arnholt wrote:
 
kinda thought it was that. still the kenwood shuting down is a mystery..i didnt think it had swr shut down.. hope the finals are ok. 
oh yeah the antenna problem simple :) wire touching a tree..gonna get a rope and pull it off and in the future get some help to move the antenna leg. i would cut the tree but this is rental property







Pig Rig

Scotty Long <nu0s@...>
 

Thank you Diz Pig Rig #192 is on my work bench today...

72/73/Scotty/NUØS

Sent from my Verizon Wireless 4G LTE DROID


Re: Only 13 days left to Pre-Register for OzarkCon

W0IIT
 

Terry,

After getting this note I went over to pre-register Patsy and myself. I forget how we have done this in the past. As I recall the club covers out registration and the motel for two nights and all we are out of pocket on is the banquet and any extra days we stay at the motel. Is this right?

cu, Bart


Re: Flying Pig

Todd K7TFC
 

You can use 1/4 watt resistors (plenty of 4k7 at Radio Shack) if you can get the slightly-thicker leads through the pcb holes. You may also have to stand the resistor up.

Regarding T2, I think when each leg of the twisted-and-soldered pair goes through its own hole and back out the other hole--that counts as two "turns." In core-winding terms, every time a wire passes through a hole is a "turn." It doesn't have to wrap *around* the core to be a counted as a "turn." That's why I'm putting "turn" in quotes here. To be a bit clearer, take a toroid and just stick a straight wire through it . . . that's one "turn." Goofy, but conventional (as many conventions are).

Since Diz indicated a "turn" on these binocular cores is going through both holes, there's the *one* when you first insert the two legs, and then when you run each leg through the opposite hole (back to the twisted side), that's turn number *2*. According to the instructions, then, with 2 "turns" already on the core, you do that 6 more times.

 73,

Todd
------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design


On Mon, Mar 11, 2013 at 7:35 AM, Graham <grahambloor@...> wrote:
 

Hi started my build on Sunday (10th) but ran into a snag , R2.3.16.26
: 4k7 ohm are missing ! and I have'nt any 1/8w res. in my junk box. And regarding T2 I thought 1 Turn plus 6 more makes not 7 not 8?
regards Graham G3UD 151



Only 13 days left to Pre-Register for OzarkCon

WA0ITP
 

There are only 13 days left to Pre-Register for OzarkCon 2013.

Don't miss out on the Midwest's premier QRP Conference. Register now
http://www.ozarkcon.com/Reg/RegisterForm2012.php Checkout the scheduled events
and our great speaker list http://www.ozarkcon.com/index.php Many items will
be for sale by individual hams and FB vendors. Take part in the build session
http://www.ozarkcon.com/BuildingWorkshop2013.html Have and eyeball QSO with
long time on the air friends.

Hope to see you in Branson on April 5 and 6.
----------------------------------
I love this radio stuff !
72 WA�ITP
www.wa0itp.com
www.4sqrp.com
www.qrpspots.com


Hunt in the 40 acre woods!

Dale Putnam
 

The 40 acre hunt with NK6A and N0UR, Don and Jim, as Foxii will begin Tueday evening (local time) at the same local time as always..
so set your zulu  alarm clock to wake the zulu folks at 0100. That way they won't be late (r).   ;-)  
 
Good Luck to each and every one of us hounds.. and of course to the two FOXii...
 

May the Props be EVER in  YOUR favor!! 
 
 
--... ...-- Dale - WC7S in Wy
 
 


Re: Perfect pig rig accessory

Johnny AC0BQ
 

Come on warm wx I wanna try one of these 
Thanks Bert


On Monday, March 11, 2013, Robert wrote:
 

This antenna might be a good thing, for a 4sqrp net

<http://www.hamuniverse.com/supernvis.html>


Flying Pig

Graham
 

Hi started my build on Sunday (10th) but ran into a snag , R2.3.16.26
: 4k7 ohm are missing ! and I have'nt any 1/8w res. in my junk box. And regarding T2 I thought 1 Turn plus 6 more makes not 7 not 8?
regards Graham G3UD 151


Re: Perfect pig rig accessory

Walter - K5EST
 

GM Terry, my horiz loop is 20 ft high, and the reflector loop
is the same length 140 ft closed wire loop. The reflector
loop is just placed under the horiz loop. You can put an
air variable capacitor in the closed loop to do a fine
tuning, but unless you build a remote unit, I would say
just enjoy the simple wire antenna world.

You can also steer the super gain dipole by putting the
reflectors on the ground at the opposite side of the
dipole you want to direct the signal. Its a very inexpensive
great performing antenna. Just be aware the 50 ohm
is gone when the antennas get close to the ground.

73....Walter - K5EST



On Mon, Mar 11, 2013 at 8:33 AM, WA0ITP <wa0itp@...> wrote:
 



GM Walter,  is your reflector a loop also?  How high do you place the driven loop?
 
----------------------------------
I love this radio stuff !
72   WAØITP
www.wa0itp.com
www.4sqrp.com
www.qrpspots.com
 
 
----- Original Message -----
Sent: Monday, March 11, 2013 8:26 AM
Subject: Re: [4sqrp] Perfect pig rig accessory

The super gain works great! St Louis QRP has used one for years at field day.

Myself, I use a horizontal loop at low elevation. Adding a reflector laying on the ground will really make a difference.

73....Walter . K5EST

On Mar 11, 2013 6:09 AM, "Robert" <e1dslr@...> wrote:
 

This antenna might be a good thing, for a 4sqrp net

<http://www.hamuniverse.com/supernvis.html>



Re: Perfect pig rig accessory

WA0ITP
 


GM Walter,  is your reflector a loop also?  How high do you place the driven loop?
 
----------------------------------
I love this radio stuff !
72   WAØITP
www.wa0itp.com
www.4sqrp.com
www.qrpspots.com
 
 

----- Original Message -----
Sent: Monday, March 11, 2013 8:26 AM
Subject: Re: [4sqrp] Perfect pig rig accessory

The super gain works great! St Louis QRP has used one for years at field day.

Myself, I use a horizontal loop at low elevation. Adding a reflector laying on the ground will really make a difference.

73....Walter . K5EST

On Mar 11, 2013 6:09 AM, "Robert" <e1dslr@...> wrote:
 

This antenna might be a good thing, for a 4sqrp net

<http://www.hamuniverse.com/supernvis.html>