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Author Topic: antennas  (Read 2503 times)
KJ4DHI
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Posts: 39




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« 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.
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WA2ONH
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Posts: 250




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« Reply #1 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!
« Last Edit: October 10, 2012, 05:44:48 PM by WA2ONH » Logged

73 de WA2ONH dit dit    ...Charlie
----------------------------------------------------------------------------
"No time is ever wasted that is spent LEARNING something!"
W8JI
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Posts: 9304


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« Reply #2 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
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AC5UP
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Posts: 3825




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« Reply #3 on: October 10, 2012, 06:11:13 PM »

I haven't had a log entry for 2 years.

...which could explain the divorces.

<rimshot!>
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KJ4DHI
Member

Posts: 39




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« Reply #4 on: October 10, 2012, 06:19:22 PM »

Stones, Eagles, Seger, but seriously, help me out here.
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WB6BYU
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Posts: 13040




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« Reply #5 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?
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VA7CPC
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Posts: 2358




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« Reply #6 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

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

     Charles
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K5LXP
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Posts: 4450


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« Reply #7 on: October 10, 2012, 08:21:48 PM »

Fifth time is the charm.

Mark K5LXP
Albuquerque, NM

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K8AXW
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Posts: 3685




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« Reply #8 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!!!
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AG6WT
Member

Posts: 442




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« Reply #9 on: October 10, 2012, 09:10:22 PM »

I haven't had a log entry for 2 years.

...which could explain the divorces.

<rimshot!>

 Angry Thanks alot! Now monitor is covered in coffee!
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AG6WT
Member

Posts: 442




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« Reply #10 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.
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N3QVB
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Posts: 81




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« Reply #11 on: October 11, 2012, 05:29:59 AM »

AC5UP Nelson, that was priceless!
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AC5UP
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Posts: 3825




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« Reply #12 on: October 11, 2012, 07:26:13 AM »

What can I say?

It's a gift...........................  Or a curse.     Roll Eyes
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W0FM
Member

Posts: 2053




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« Reply #13 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
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NO2A
Member

Posts: 760




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« Reply #14 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!    Cheesy
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