Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #21   Report Post  
Old April 13th 08, 12:30 AM posted to rec.radio.shortwave
RHF RHF is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default Do-It-Yourself -alternative-to-the- Watson-Miller Shortwave{Listener} (SWL) Receiving {Only} Antenna

On Apr 12, 2:53*pm, wrote:
-
- Dahhhh,,,, Boolsheeit.
- Watson Miller doesn't sound like much to me.
- I can stick a wire on one of my naked girlfriend's
- arses and pick up much better than that.
- cuhulin
-

Cuhulin - She must have a Mighty Wide Ass ! ) ~ RHF
-ps- Maybe you should try a Dyke-Pole Antenna ;-}

Do-It-Yourself -alternative-to-the- Watson-Miller Shortwave
{Listener} (SWL) Receiving {Only} Antenna

# 1 - Start with a 1/4 WL 10 Metre / CB 102" Whip Antenna

# 2 - Use a 9:1 Matching Transformer* {UnUn}
* Grounded directly to the Top-Rail near the top.

# 3 - Connected to a Coax Cable feed-in-line to the
Matching Transformer.

# 4 - Whip Antenna is mounted on a 21 Foot piece of Top-Rail*
* A Single free-standing piece of Metal Pipe with 2~3 Feet
in the ground** using a larger metal pipe sleave or Concrete
Post-Hole Anckor.
** Locate the Base of the Top-Rail at least 25 Feet away
from the House and other structures.

# 5 - Eight Foot (8-Ft.) Ground Rod at the base of the
Top-Rail with short heavy Ground Strap directly to the
Top-Rail. The whole piece of Top Rail is Grounded.

# 6 - Fifty to 100 Feet of Coax Cable feed-in-line connected
from the Matching Transformer to the Radio / Receiver.


about as simple and basic as it gets - iane ~ RHF {pomkia}
  #22   Report Post  
Old April 26th 08, 07:27 PM posted to rec.radio.shortwave
RHF RHF is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default What It Is Is . . . Off-Center-Fed Dipole Antenna {Windom} that isBent into the Shape of an Inverted "L" Antenna

On Apr 5, 5:23*pm, "vangellis" wrote:

Vangellis -wrote-

- Hi RHF
- The actual longwire start is about 40 foot high,
- the centre of the V is about 35 feet
- and the end of the V is about 40 foot
- ( all in all it is about 80 foot long overall)

Basically starts to sound like a Horizontal Wire Antenna
with a sway-back.

- it is connected to a balun/transformer,

# 1 - That is good.

- then I have coax cable conected to the balun

# 2 - That is good.

- with a very thick earthwire going from the balun

# 3 - That is good.

- and receiver to ground (a 8 foot underground spike.

# 4 - That is good.

- regards
- vangellis
-

Vangellis,

FWIW - If you have a Ground Wire going from an 8-Foot
Ground Rod 'up' 40-Foot to the Balun then most likely
that Wire is a Grounded {Terminated} Vertical Radiator;
and at least at some Frequencies part of the Antenna
Element System.

Effectively an Off-Center-Fed Dipole Antenna {Windom}
that is Bent into the Shape of an Inverted "L" Antenna.

and that is the way 'i' see it - iane ~ RHF
  #23   Report Post  
Old April 26th 08, 08:18 PM posted to rec.radio.shortwave
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 4,494
Default What It Is Is . . . Off-Center-Fed Dipole Antenna {Windom} that is Bent into the Shape of an Inverted "L" Antenna

In article
,
RHF wrote:

On Apr 5, 5:23*pm, "vangellis" wrote:

Vangellis -wrote-

- Hi RHF
- The actual longwire start is about 40 foot high,
- the centre of the V is about 35 feet
- and the end of the V is about 40 foot
- ( all in all it is about 80 foot long overall)

Basically starts to sound like a Horizontal Wire Antenna
with a sway-back.

- it is connected to a balun/transformer,

# 1 - That is good.

- then I have coax cable conected to the balun

# 2 - That is good.

- with a very thick earthwire going from the balun

# 3 - That is good.

- and receiver to ground (a 8 foot underground spike.

# 4 - That is good.

- regards
- vangellis
-

Vangellis,

FWIW - If you have a Ground Wire going from an 8-Foot
Ground Rod 'up' 40-Foot to the Balun then most likely
that Wire is a Grounded {Terminated} Vertical Radiator;
and at least at some Frequencies part of the Antenna
Element System.

Effectively an Off-Center-Fed Dipole Antenna {Windom}
that is Bent into the Shape of an Inverted "L" Antenna.

and that is the way 'i' see it - iane ~ RHF
.


You sure have lousy vision then. No big surprise.

--
Telamon
Ventura, California
  #24   Report Post  
Old April 28th 08, 10:11 PM posted to rec.radio.shortwave
RHF RHF is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default Ping Vangellis : Watson-Miller Shortwave Listener (SWL) ReceivingAntenna ? -versus- 30 Foot End-Fed Long-Wire Antenna ?

On Apr 5, 5:38*pm, "vangellis" wrote:
Hi RHF
The actual longwire start is about 40 foot high, the centre of the V is
about 35 feet and the end of the V is about 40 foot ( all in all it is
about 80 foot long overall) it is connected to a balun/transformer, then I
have coax cable conected to the balun with a very thick earthwire going
from the balun and receiver to ground (a 8 foot underground spike.
regards
vangellis


- I forgot to mention it is in a V shape, not a L shape,
- with both sides of the V at 45 degrees to each other.
- vangellis

Vangellis,

What does the Balun 'connect' to the "V" Wire ?

[ ] At One End

[ ] At the Point {Bend} of the "V"

~ RHF
  #25   Report Post  
Old May 12th 08, 06:14 PM posted to rec.radio.shortwave
RHF RHF is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default Do-It-Yourself "Alternative" # 2 to the Watson-Miller Shortwave{Listener} (SWL) Receiving {Only} Antenna

On Apr 12, 12:43 pm, RHF wrote:
-
- Here is the KISAP {Keep It Simple And Practical} Evaluation
- of the Watson-Miller Shortwave {Listener} (SWL) Receiving
- {Only} Antenna
-
- Watson-Miller Shortwave {Listener} Receiving {Only Antenna
- 1.8 - 30MHz (Small Vertical Passive SW Antenna)
- WM SWL ANTENNA -http://tinyurl.com/2g2hqx

Do-It-Yourself "Alternative" # 2 to the Watson-Miller
Shortwave {Listener} (SWL) Receiving {Only} Antenna

Still working on a Home Brewed Sort-of-Look-a-Like Antenna
using Copper Tubing and a PVC Pipe Mast Support; along
with a 9:1 Matching Transformer and Coax Cable feed-in-line.

It's a Work-in-Progress with two false starts {Whoops}

The 1/4" Copper Pipe ~ 15 Feet Long Antenna Element
comes from a Icemaker Water Supply Installation Kit
http://frigidaire.stores.yahoo.net/unicemakinki1.html
http://www.lowes.com/lowes/lkn?actio...=53757-131-813

Ten Foot Piece of PVC Pipe Upper-Mast
[ Antenna Element Shape Support ]

Attempting to get a 6" Radius Top And Bottom

RF Junkie 9:1 SWL-1 Long-Wire Feeder [ Matching
Transformer ] with So-239 to "F" Adapter

RG-6 Quad-Shield Coax Cable feed-in-line 50~100 Feet.

21-Foot piece of Top-Rail for the Bottom Mast
[ Free-Standing with a Ground Anchor ]

The Fold-Up and repeated problem so far has been
'forming' the 1/4" Copper Tubing Antrenna Element
with the Straight Parallel Runs and the Six-Inch
Radius at the Top and Bottom.

A Plastic Chop-Stick is being used to Fill the 3" Gap
between the Two Ends of the the "C" and hold them
in 'fixed' Alignment with the other parallel run.

Still have not figured-out whether to use the Top-End
of the "C" Gap or the Bottom-End as the Feed-Point.

? Any Suggestions as to Which and Why ?

yes - i like play with antenna projects - iane ~ RHF {pomkia}
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Watson W-901 Air-Gainer antenna Frank Scanner 1 August 19th 06 06:09 PM
WTB: Watson W-901 Airgainer antenna Frank Scanner 0 March 29th 06 06:16 AM
Watson W-901 Airband Antenna Frank Bals Scanner 1 July 6th 05 12:08 AM
watson all band hf antenna for auction on ebay.co.uk paul405 General 0 April 3rd 04 11:29 PM
WTB: Watson W901 Air Band antenna Frank Bals Scanner 0 February 26th 04 02:27 AM


All times are GMT +1. The time now is 04:44 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017