eHam

eHam Forums => Elmers => Topic started by: KJ4DHI on October 10, 2012, 05:33:58 PM



Title: antennas
Post by: KJ4DHI on October 10, 2012, 05:33:58 PM
I have been fretting about antennas for a couple of tears now, instead of just asking you guys. I am antenna restricted in the worst sort of way, the xyl way. I'm not just antenna restricted, I'm station restricted. It doesn't matter where I pot the damn thing, it ain't right. I've been married 4 times. I don't want to be divorced 4 times. So, here's the deal. My shack will be my 1996 Town and Country van. I operate 10, 6, and 2 SSB and 40 CW. So, I'm a Tech. I wouldn't exactly be operating mobile, more likely operating from a hilltop or farmers field. Can someone come up with some wortwhile antenna suggestions? I haven't had a log entry for 2 years.


Title: RE: antennas
Post by: WA2ONH on October 10, 2012, 05:40:46 PM
Everything you ever wanted to know about operating Mobile, see K0BG site at ...

LINK: http://www.k0bg.com/

This site is dedicated to mobile amateur radio operators, old and new alike. Whether you're into HF, or VHF operation, I trust the information presented will increase your enjoyment of our great hobby.

Yes, he talks about Antenna issues as well.

Good Luck!


Title: RE: antennas
Post by: W8JI on October 10, 2012, 05:48:50 PM
I have been fretting about antennas for a couple of tears now, instead of just asking you guys.


Dry those tears.

Quote
I am antenna restricted in the worst sort of way, the xyl way. I'm not just antenna restricted, I'm station restricted. It doesn't matter where I pot the damn thing, it ain't right. I've been married 4 times. I don't want to be divorced 4 times. So, here's the deal.


Me neither. Next time I'm just going to go steady.

Quote
My shack will be my 1996 Town and Country van. I operate 10, 6, and 2 SSB and 40 CW. So, I'm a Tech. I wouldn't exactly be operating mobile, more likely operating from a hilltop or farmers field. Can someone come up with some wortwhile antenna suggestions? I haven't had a log entry for 2 years.


Hmmm. I don't want to get into marriage counseling, but it seems odd your wife would rather have you off in the van than home on the radio.  The first and second time I got divorced was actually because I was in a van in farmer's field.

Anyway, you could easily get a nice mobile setup without too much expense. What kind of music do you listen to?

73 Tom


Title: RE: antennas
Post by: AC5UP on October 10, 2012, 06:11:13 PM
I haven't had a log entry for 2 years.

...which could explain the divorces.

<rimshot!>


Title: RE: antennas
Post by: KJ4DHI on October 10, 2012, 06:19:22 PM
Stones, Eagles, Seger, but seriously, help me out here.


Title: RE: antennas
Post by: WB6BYU on October 10, 2012, 06:33:17 PM
Mobile and portable antennas aren't exactly the same thing, but neither need be
difficult or expensive.

For example, you can get the 4' military mast sections online, or at many local
surplus stores, and there are other options including telescoping fiberglass, etc.

A simple mount made from a few chunks of wood and a piece of pipe give you
a mount that you can drive a wheel onto as a support, or lean the mast against
a road sign, tree branch, secure it to a fence post with a bungee cord, etc.

A couple simple yagis on top will give you 2m and 6m SSB.  Try these for starters -
they are easy to build:

http://www.wa5vjb.com/yagi-pdf/cheapyagi.pdf


Then make wire dipoles for 40m and 10m on a common feedpoint.  Put a pulley on
the mast just under the VHF antennas and use that to hoist the HF wires - you can
use them (extended by ropes as needed) to guy the mast.  Tune the wires for
best SWR in the frequency range of interest.  The 40m wire will also allow you to
operate 15m, though that may require a tuner or some extra bits of wire hanging
from the 40m wire.  Obviously the antenna system can be extended to include
other bands as desired.

Doesn't have to be high - 20' is adequate to get you on the air, and ~30' is
practical for a single person (though it takes a bit of practice.)

Of course, if you have trees you can hang the HF wires from them and use the
mast for VHF.  Maybe you can find a friendly farmer who will let you leave your
antenna in place, so you just drive up and plug in.  Or another ham who will let
you come over and operate their station.  Does one of the nearby clubs have
a club station available to members?


Title: RE: antennas
Post by: VA7CPC on October 10, 2012, 06:58:01 PM
My antenna is in the attic.  It's not ideal, but it's better than no antenna.  And it's invisible to anyone inside, or outside, the house.

When I operated portable/QRP, I used a 31' windsock pole to hold my wire up.  Not too expensive, and very easy to guy single-handed:

http://www.jackite.com/product_info.php?cPath=41_44&products_id=132&osCsid=f3863a6a3bf943c7c6e2a9259fc812a1 (http://www.jackite.com/product_info.php?cPath=41_44&products_id=132&osCsid=f3863a6a3bf943c7c6e2a9259fc812a1)

A 31' vertical wire, and 4 radials on the ground, will give you a reasonable (not optimal) 40m antenna.

     Charles


Title: RE: antennas
Post by: K5LXP on October 10, 2012, 08:21:48 PM
Fifth time is the charm.

Mark K5LXP
Albuquerque, NM



Title: RE: antennas
Post by: K8AXW on October 10, 2012, 08:54:18 PM
5UP: 
Quote
I haven't had a log entry for 2 years.

...which could explain the divorces.


Nasty......nasty....... just couldn't help it could you?

DHI:  Ever thought of getting a dog instead of getting married?  Four times?  Daymn!!!


Title: RE: antennas
Post by: AG6WT on October 10, 2012, 09:10:22 PM
I haven't had a log entry for 2 years.

...which could explain the divorces.

<rimshot!>

 >:( Thanks alot! Now monitor is covered in coffee!


Title: RE: antennas
Post by: AG6WT on October 10, 2012, 09:22:04 PM
I have been fretting about antennas for a couple of tears now, instead of just asking you guys. I am antenna restricted in the worst sort of way, the xyl way. I'm not just antenna restricted, I'm station restricted. It doesn't matter where I pot the damn thing, it ain't right. I've been married 4 times. I don't want to be divorced 4 times. So, here's the deal. My shack will be my 1996 Town and Country van. I operate 10, 6, and 2 SSB and 40 CW. So, I'm a Tech. I wouldn't exactly be operating mobile, more likely operating from a hilltop or farmers field. Can someone come up with some wortwhile antenna suggestions? I haven't had a log entry for 2 years.

Start off simple and cheap. Use ham sticks for 10 and 40 meters on the van. If you can operate stationary and have time to set up a fixed pole, you can use ham stick dipoles for 10 and 40. 40 won't be great but using CW will certainly help. Being mobile isn't so bad as you can operate well away from the typical RFI that plague many residential stations.

For 6 and 2 meters, use loops or small yagis. Not hard to make, plenty of plans in the ARRL books and on the internet. M2 is once source for antennas if you want to buy a finished product.


Title: RE: antennas
Post by: N3QVB on October 11, 2012, 05:29:59 AM
AC5UP Nelson, that was priceless!


Title: RE: antennas
Post by: AC5UP on October 11, 2012, 07:26:13 AM
What can I say?

It's a gift...........................  Or a curse.     ::)


Title: RE: antennas
Post by: W0FM on October 11, 2012, 10:45:41 AM
Quote
The first and second time I got divorced was actually because I was in a van in farmer's field.

73 Tom


Was the farmer's daughter in that van with you Tom?

73,
Terry, WØFM


Title: RE: antennas
Post by: NO2A on October 11, 2012, 11:16:10 AM
You could use a 3-magnet mag mount on the van roof with a hamstick. They work quite well,providing an excellent ground plane. One word of caution,once they`re put on they`re very hard to remove!    :D


Title: RE: antennas
Post by: WB2WIK on October 11, 2012, 02:58:51 PM
Instead of getting married, next time I'd just pick a woman I don't like much and give her half my stuff.


Title: RE: antennas
Post by: K6AER on October 11, 2012, 03:37:30 PM
Move to the country and find a woman who like horses. They never notice the towers. Don't worry about how many time you get married. Most of us have had more than one employer.


Title: RE: antennas
Post by: WB8VLC on October 11, 2012, 05:39:10 PM
Or find a girl who's father and 3 uncles are hams and they always took her to various field day outings for more than 15 years when she was growing up.

After those kind of memories a 40 foot tower, a couple of masts for the wire antennas and a HF/6 meter radio running all the time in the background is nothing to her.


Title: RE: antennas
Post by: KH6AQ on October 11, 2012, 07:42:40 PM
If you want one antenna that covers the bands you want it is the Yaesu ATAS-120 screwdriver antenna. A controller is made for it to allow any radio to be used. I use an ATAS-120 mobile on HF including 40 meter CW. Performance-wise it's about like a 40 meter Hamstick. Not great but good enough to work Japan from Utah while running 100 watts CW.

But no matter what you use for a mobile antenna or antennas you will make contacts and have fun.


Title: RE: antennas
Post by: N8NSN on October 11, 2012, 07:45:34 PM
Oh Lord - the "no log entry in 2 years" coupled to the <rimshot> comment on "reason for divorces..." made me drop my iPhone from laughing so hard ...timing and delivery is everything in sateric humor. A+

anywho, don't want to crash/hijak the thread, but do need to send a shout out and a dit dit dah dah dit dit, to W0FM - Terry. Been a while since last QSO @ 7028ish kc... Lots of updates easier viewed on my updated QRZ, bruh. Catch me some morning on 7028 between 8 & 9 AM Eastern, whilst I make my way into work, or while I'm getting in my QRN-Free CW fix at Carriage Hill Farm. LOVE the S-Zero noise level of being "away from town"

My new wife is a ham... No dilemas, no fussing over radio, no "control" issues. She does Red Cross Emcom stuff, I'm 99.9% CW-HF. We do tons of radio related events, camping, bicycling, hiking... etc. etc. etc. we have the world stop on Thursday nights to watch Big Bang Theory together (the only TV show we actually plan to watch) and all is good in NSNville. Yep, we even got matching hats, t-shirts, and call signs (she vanitied K8NSN) :-)

73 from
NEVER
SAY
NEVER
plural !


Title: RE: antennas
Post by: KG6YSF on October 13, 2012, 12:29:24 PM
I'm no pro but I remember being tought in the Army that if you conect a wire to a slinky that you can get use that as an antenna. I remember that my platoon tryed it one time and did real well. we tossed the end of the slinky over a tree limb and layed a "space blanket" under it. They pack small and work, both should fit in a shoe box size container or smaller.
Just a thought.


Title: RE: antennas
Post by: N6AJR on October 13, 2012, 12:50:46 PM
You can make a 10 meter dipole  for about a dollar, and stick it in the attic.  bring the coax through the back corner of a closet and put the shack ( a table or desk) next to or in the closet, and get on the air.  you can also stick a 2m/440 beam on a small rotor in the attic and use that.  I had a friend who uses an old style roll front desk to hide his station, it looks like an antique piece and when he lifts the roll up , there are his radios and such.  looks good and no one knows its there.

As far as the wife goes, I have been married and divorced 4 times my self.  I am current single and will remain so for  the remainder of my days, unless  there comes a very special lady. But as of now, I do what I want, when I want and spend what I want, because I only have to worry about me. If you are married, you need to keep in mind that you should have your life, she has her life and then you have your combined lives.  You need to be able to go fishin with the boys, and she needs to be able to go shopping with the girls, and then you can both share  your days' adventures over a nice meal in a restaurant together.

as far as antenna go, you can do lots of things, check out google for stealth antennas, home brew antennas and stuff.  good luck