Date   

Re: Sudden very weakaudio on my modified PL-380

gordstaples49
 

I had a similar problem with my PL390. The volume was lower than normal and when turned up past about the 10 volume setting became very distorted. It turned out that there is a tiny FET which switches power on/off to the audio chip (right near pin 16 on the chip) that had blown only allowing a very low voltage (something like 2V) to power the audio. Replaced this and everything was fine again.

Regards
Gord

--- In ultralightdx@..., Patrick <aunumero73@...> wrote:

No, the battery is OK.
I noticed that the audio volume is actually fine when using headphones,
only very low when listening through the speaker.


Re: Three new Stations WLAT off-air

ferrite61 <dxrx@...>
 

An update here... WXCT 990 Southington, CT is also off-air, but WQUN 1220 is still on. Hamden/New Haven reletively unaffected, My town Cheshire and North wiped out. WPOP 1410 Hartford (B'cast Ant. Newington) was off air for quite a bit, but is on again. Phone service here only, everything on UPS device, including sharging celphones. Gotta go TC all will check in again soon.

Paul S. in CT

--- In ultralightdx@..., "ferrite61" <dxrx@...> wrote:

Tonite during DXing I noted that WLAT 910 Hz from New Britain, CT was off-air likely due to the nor'easter dumping a foot plus in the area.

I was able to find two new stations with the channel clear.

First was a nice callsign of WJCW from Johnson City, TN just after 2330 EDT. A lookup indicated ESPN programming, and in about 45 minutes WJCW came to the top rather well with "All-Night" show. Good copy for about 10 minutes, including a second call.

I moved up the band to try 1240 in case WWCO was having problems... they were not, but nulled them to see what was there tonight. I got some standards from 50's 60's, in/out for a while and heard a call for WFTN[M]. THis was a problem, as both WFTN and WFTM are both listed as "Adult Standards" one in NH, and the other in MD. Had to stay on this longer than I wanted, but was rewarded with a few local spots for Keene and Manchester. This would be NH, and am logging as WFTN.

For the 0100 EDT ID's I went back to 910 to see if I could pick up any. I did catch a nice 910 WBZU Scranton, and then into what I think is C2C.

There is some singing going on, sounds like Country or maybe S. Gospel, but no ID's.


#512 910kHz WJCW Johnson City TN 1000W 998km using PL-210
#513 1240kHz WFTN Franklin NH 1000W 244km using PL-210
#514 910kHz WBZU Scranton PA 440W 230km using PL-210

WFTN is also GY #61.

Happy listening!, from snowbound/ crackling trees CT

Paul S. in CT


Newfoundland Ultralight Radio Trans-Atlantics & Domestics Report Oct 28-31

Allen Willie
 

Ideal propagation conditions prevailed during the weekend with the solar indicators at zero and zero early on , however the lower end of the band seemed to be somewhat suppressed compared to the higher end. A good variety of countries heard including the Vatican logged by Dianne for the very first time at this new location.




549-ALGERIA-Alger Chaine 1 Les Trembles 2:04 UTC Oct 31 Arabic music & talk
558-SPAIN-R. Nacional various 23:37 UTC Oct 28 woman in Spanish talk
612-MOROCCO-RTM Sebaa-Aioun 22:22 UTC Oct 28 woman in Arabic, mention of Morrocaine (Fair)
621-CANARY ISLANDS-R. Nacional, Tenerife 2:02 UTC Oct 31 woman with news in Spanish
684-SPAIN-Radio Nacional 1 Sevilla 2:05 UTC Oct 31 Spanish commentary
837-SPAIN-COPE Sevilla 23:38 UTC Oct 28
855-SPAIN-R. Nacional, various 20:34 UTC Oct 30 Spanish talk (Good)
909-ENGLAND-BBC 5 Live, Moorside Edge 00:09 UTC Oct 31 talk (good)
963-TUNISIA-R. Tunisia Cultural Channel, Tunis 22:11 UTC Oct 28 Chants
999-SPAIN-COPE Madrid 20:02 UTC Oct 29 Sports commentary in Spanish
1035-PORTUGAL-Star FM Belmonte 2:00 UTC Oct 31 Star FM ID Jingle, Cat Stevens song
1062-ITALY-RAI1 Cagliari 20:08 UTC Oct 29 Italian talk & music
1089-ENGLAND-Talksport Radio, Brookmans Park 00:11 UTC Oct 31 ID then talk about Vincent Price
1098-SPAIN-R. Nacional 5, various 22:20 UTC Oct 28 Spanish political talk
1116-SPAIN-SER Pontevedra 20:31 UTC Oct 30 Spanish sports commentary
1134-CROATIA-Glas Hrvatske, Rasinovac 22:16 UTC Oct 28 news in English (Very Strong)
1197-SPAIN-Euskadi Irratia, Vitoria 1:02 UTC Oct 29 news in Basque language
1242-FRANCE-France Info Marseille Cabries-Realtor 23:40 UTC Oct 28 French talk (Very Strong)
1251-LIBYA-Voice of Africa, Tripoli 19:40 UTC Oct 29 man in Arabic talk (Very Good)
1305-SPAIN-R. Nacional, various 20:30 UTC Oct 29 news in Spanish (good)
1314-UNITED ARAB EMIRATES-R. Farda, Al-Dhabbiya 00:07 UTC Oct 31 Arabic talk & music (Very Strong)
1341-NORTHERN IRELAND-BBC R. Ulster, Lisnagarvey 21:40 UTC Oct 28 ID, Elvis song "Suspicious Minds"
1377-FRANCE-France Info, Lille-Camphin-en-Carembault 23:33 UTC Oct 28 French talk, ID (Like A Local)
1395-ALBANIA-Transworld Radio via Fllake Relay 20:03 UTC Oct 30 Polish programme (This one was very strong all evening)

1413-SPAIN-R. Nacional, Jaen 21:44 UTC Oct 28 Spanish talk (Strong)
1422-ALGERIA-R. Culture, Alger 22:34 UTC Oct 28 man & woman in Arabic (good) at times over Germany the past few evenings)
1431-DJIBOUTI-R. Sawa, Arta 23:31 UTC Oct 28 Katy Perry song, Arabic talk, ID
1440-SAUDI ARABIA-General Arabic Programme, Dammam 21:42 UTC Oct 28 Arabic talk over CRI Relay Luxembourg at times)
1449-LIBYA-Voice of Free Libya, Meserata 19:42 UTC Oct 29 Arabic talk (good)
1458-ALBANIA-China Radio via Fllake Relay 20:02 UTC Oct 30 Hungarian lang. programme
1467-FRANCE-Transworld Radio via Romoules 20:20 UTC Oct 29 Religious talk in French & Englsih (good)
1485-SPAIN-SER various 21:43 UTC Oct 28 Spanish talk (Strong)
1494-FRANCE-France Bleue, Bastia 00:15 UTC Oct 31 France Bleue ID Jingle, American pop song then French song (good)
1503-IRAN-IRIB1 Bushehr, 00:12 UTC Oct 31 Chants
1521-SAUDI ARABIA-BSKSA Duba 00:53 UTC Oct 29 Arabic talk (Like A Local)
1530-VATICAN STATE-Vatican Radio 19:55 UTC Oct 30 Religious ceremony then into Interval signal & then Italian language programming (good) **NEW**(DF-BH)
1550-WESTERN SAHARA-R. Democratic Sahara Rep, Rabuni 20:12 UTC Oct 30 Arabic talk (fair with good peaks)
1557-FRANCE-France Info, Nice-Fontbonne 20:06 UTC Oct 29 French talk & promos
1575-ITALY-RAI1 Genova 20:14 UTC Oct 30 Italian talk & American pop song
1584-SPAIN-SER various 20:15 UTC Oct 29 Sports commentary in Spanish (good)
1602-SPAIN-Euskadi Irratia, R. Vitoria Cerro Estibaliz 00:14 UTC Oct 31 R. Vitoria ID Jingle, Spanish talk


Receivers: SRF-M37V, SRF-39FP , SRF-59, SRF-M37W , DT-210V barefoot

Good DX

Allen Willie & Dianne Froude
Bristol's Hope,Newfoundland
47:43N 53:11W
http://nldxers.summerhost.info


Re: The Green Giant FSL

Michael <michael.setaazul@...>
 

Very impressive, Kevin.

Of course I mean : the serenity of your wife!

The next stage would be to build one of similar
dimensions round the inside of a weekend
suitcase - but maybe not for air travel :-)

Michael UK


MW-Ultralight logs

patrice.privat
 

Hi
 
1215 Voice of Russia, Bolshakovo, RUS, English ulr #297
 
1224 COPE Valencia , E, Spanish ulr #298
 
585 RTT Gafsa TUN, Arabic // 630 khz ulr #299
 
Good day
 
Patrice
 
Beauvais
 
Tecsun PL-380


The Green Giant FSL

Kevin Schanilec
 

Hi all:

I finally was able to assemble an antenna I have been working on for some time, a 22" (coil size) FSL, dubbed The Green Giant. Housed in a 24-inch diameter holiday wreath box, it tunes the full LW and MW spectrum in three bands. Being perhaps the largest FSL in the world (so far), it has the signal-grabbing power to match.

The file "Green Giant FSL Summary.pdf" is now in the Files section here, in the "Ferrite Sleeve Loop Antenna" folder, if you want to take a look. It is more of a summary rather than a detailed construction blueprint – Gary's recent guide is the gold standard as far as a detailed step-by-step manual for building an FSL. However, hopefully it gives you a clear idea of how it was built, and feel free to drop me a line with questions if you embark on building one!

Some things learned in building this beast:
- loop antenna theory, which predicts that signal is generally proportional to turns-times-area, seems to be holding true
- the distributed capacitance becomes a very significant factor in an FSL this large, even with Litz wire. As a result, I needed to allow for three separate tuning bands and throw in extra capacitance. To go much larger than this (my wife is wincing...), I will probably have to stick with either MW or LW only
- as with the Backpack FSL that I posted a couple days ago, shorter (and cheaper) ferrites, in this case 62x12x4 mm bars, continue to work just fine. Since the coil is much narrower on a large FSL, there is plenty of room for the winding, even for LW, although longer ferrites would allow for more space between windings, decreasing the distributed capacitance

I hope to have some decent weather in the next few days in order to do some testing out in the park, since being indoors with all the metal and other interference hampers the performance of FSLs. However, even with the handicap of being indoors, this looks to be the next Giant step beyond even the 11-12 inch FSLs currently in existence.

Kevin S
Bainbridge Island, WA


Re: CKWX 1130 Made it to Houston!

Stephen Ponder <stephen_ponder@...>
 

Keith,

I don't recall ever having heard CFFR before. But, I now have it in my "Target DX" list!

I didn't hear a "peep" from KWKH on frequency, which is unusual, because they normally have some sort of presence on 1130 down here.

Thanks & 73,

Steve Ponder, N5WBI
Clear Lake City, TX USA
----------------------

On Oct 30, 2011, at 3:30 AM, keith beesley <keith1226@...> wrote:

 

Congrats Steve, they're one of my favorite late-night stations here. I noticed they seemed to have an unusually strong signal tonight. Wonder if that's the furthest south and east they've ever been heard?

Have you heard CFFR ("660 News") from Calgary? Some nights they're even stronger here, despite being further away. Co-owned with CKWX and similar all-news format.

73,
Keith Beesley
Seattle WA USA 


MW-ultralight log

patrice.privat
 

Hi
 
 
945 Gold, Bexhill, G ulr #292
 
1107 Talksport, Lydd, G ulr #293
 
1305 Gold Christchurch, G ulr #294
 
1242 Gold, Hoo St Werburgh, G ulr #295
 
1098 SRo5 Nitra, SVK ulr #296
 
Patrice
 
Tecsun PL-380


Re: Sudden very weakaudio on my modified PL-380

eberhard keller
 

Hello Patrick,my PL-380 went dead shortly,1-2 hours
after completing mod for external 1/8" connector.
Headset volume was fine as you report on yours as well.
I opened the set and removed the main circuit board
enough to touch the speaker terminals with an ohm meter,
open coil on speaker.I found a speaker at a surplus place in milpitas,california,of same mechanical size as the pl-380's,
but 45 ohm.Replaced the speaker,not easy to do and it works
ok.I suspect a bad batch of speakers is possible.

--- In ultralightdx@..., "Patrick " <aunumero73@...> wrote:

Hi all,

This morning, my 7" loopstick PL-380 shows a VERY WEAK audio level. Reception is fine as usual, but I have to set the volume to 20 or 25 to have a decent audio (usually, it is set to abt 7 to 10).

Any idea ?

Patrick, south east France


Re: BOG antennas

Rick Robinson <w4dst@...>
 

Tom and Farmerik,

The BOG, or radial antenna, has apparently not been investigated to determine why a wire on the ground, at a fraction of a wavelength in length, could be directional toward the unterminated end. Maybe someone with antenna modeling software like EZNEC could determine the reason.

My PL-380s are modified with Radio Shack 1/8 mono jacks to accept external antennas on MW, while leaving the internal ferrite bar antenna functional. This weekend I built up an interface box consisting of 2 binding posts and an 1/8 jack for attaching external wire antennas to the PL-380s. Across the binding posts I've installed 2 1N4148 diodes in parallel but reversed polarity and also a Siemens spark discharge tube across the terminals. That will protect the Si4734 chips in the '380s from static discharge. The box cost about $15 and is made from all Radio Shack parts except for the Siemens gas discharge device. This is probably unnecessary but I have a box of them I got at a hamfest for $1 and like to use them rather than have them sitting around.

I have a good lunch time test for the BOG on 1090kHz with 1090 WCZZ in Greenwood, SC, and 1090 WHGG in Kingsport, TN. Again, I'm almost in the direct center of a line between the 2 stations. We have a nice wooded area at the community college where I work with picnic tables to set up on. With the R75 I was able to use the chassis ground on my vehicle but at work I'll be able to use a water faucet pipe that comes out of the ground about 10 feet from the table.

Post your results to the list. BTW, my bogs work well even under snow.

Rick


Re: CKWX 1130 Made it to Houston!

keith beesley
 

Congrats Steve, they're one of my favorite late-night stations here. I noticed they seemed to have an unusually strong signal tonight. Wonder if that's the furthest south and east they've ever been heard?

Have you heard CFFR ("660 News") from Calgary? Some nights they're even stronger here, despite being further away. Co-owned with CKWX and similar all-news format.

73,
Keith Beesley
Seattle WA USA


From: Stephen Ponder
To: ABDX@...; UltralightDX Yahoo Group ; National Radio Club (NRC)
Sent: Sunday, October 30, 2011 12:31 AM
Subject: [ultralightdx] CKWX 1130 Made it to Houston!

 
CKWX 1130 Vancouver, BC, Canada, heard at 0210 CDT on 30-Oct with "News 1130" ID and Traffic/Weather for Vancouver area.
Heard on barefoot DT400W.

73 & Good DX,

Steve Ponder, N5WBI
Clear Lake City, TX USA
----------------------



CKWX 1130 Made it to Houston!

Stephen Ponder <stephen_ponder@...>
 

CKWX 1130 Vancouver, BC, Canada, heard at 0210 CDT on 30-Oct with "News 1130" ID and Traffic/Weather for Vancouver area.
Heard on barefoot DT400W.

73 & Good DX,

Steve Ponder, N5WBI
Clear Lake City, TX USA
----------------------


Re: Sudden very weakaudio on my modified PL-380

Patrick <aunumero73@...>
 

No, the battery is OK.
I noticed that the audio volume is actually fine when using headphones, only very low when listening through the speaker.


Three new Stations WLAT off-air

ferrite61 <dxrx@...>
 

Tonite during DXing I noted that WLAT 910 Hz from New Britain, CT was off-air likely due to the nor'easter dumping a foot plus in the area.

I was able to find two new stations with the channel clear.

First was a nice callsign of WJCW from Johnson City, TN just after 2330 EDT. A lookup indicated ESPN programming, and in about 45 minutes WJCW came to the top rather well with "All-Night" show. Good copy for about 10 minutes, including a second call.

I moved up the band to try 1240 in case WWCO was having problems... they were not, but nulled them to see what was there tonight. I got some standards from 50's 60's, in/out for a while and heard a call for WFTN[M]. THis was a problem, as both WFTN and WFTM are both listed as "Adult Standards" one in NH, and the other in MD. Had to stay on this longer than I wanted, but was rewarded with a few local spots for Keene and Manchester. This would be NH, and am logging as WFTN.

For the 0100 EDT ID's I went back to 910 to see if I could pick up any. I did catch a nice 910 WBZU Scranton, and then into what I think is C2C.

There is some singing going on, sounds like Country or maybe S. Gospel, but no ID's.


#512 910kHz WJCW Johnson City TN 1000W 998km using PL-210
#513 1240kHz WFTN Franklin NH 1000W 244km using PL-210
#514 910kHz WBZU Scranton PA 440W 230km using PL-210

WFTN is also GY #61.

Happy listening!, from snowbound/ crackling trees CT

Paul S. in CT


Re: Recent Ultralight Logs

Mike Sanburn
 

Nice catch on the Maine 1440!  -Mike Sanburn


--- On Sat, 10/29/11, John Cereghin wrote:

From: John Cereghin <jcereghin@...>
Subject: [ultralightdx] Recent Ultralight Logs
To: ultralightdx@..., "abdx"
Date: Saturday, October 29, 2011, 10:51 AM

Some ultralight logs from the past few days, mainly on the DT-200VX
and PL-310 barefoot:

October 25, 2011
1160    WODY, Fieldale VA, 0850, mentions of Martinsville and
“Southside”, into ESPN, new URL log
920  WYBY, Cortland NY, 1830, nice sacred traditional music, BBN liner
(Bible Broadcasting Network)

October 27, 2011
1600    WAOS, Austell GA. 2200, Spanish, Rancheria mx, “La major de
Atlanta” liner at 2200, on late with day power after other DXer
reports, 641 miles, new ULR and overall log

October 29, 2011
1440    WRED, Westbrook ME, 0820, ads for “Maine State Lottery”, program
on “Sea Dogs Radio” and "The Big Jab" liners, 405 miles, new ULR and
overall log, a nice surprise here

Now at 811 ultralight logs and 985 logs overall.


--
John Cereghin WDX3IAO  KB3LYP
Smyrna, Delaware
My radio page http://wdx3iao.wordpress.com/ (please note NEW site!)
The Ultralight Scoreboard
http://wdx3iao.wordpress.com/the-ultralight-scoreboard-2/ (NEW site!)


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Ultralight Longwave DX-- One New Canadian Beacon

Gary DeBock
 

Hello All,

While Rob has been dodging the skunk I've also been outside freezing in
the back yard, chasing Ultralight NDB's for all its worth (although
during the recent propagation skids I myself was getting skunked, in
another sort of way).

During the Ndblist Yahoo group Coordinated Listening Event this weekend
(on the frequencies from 270-320 kHz) I've been spending some serious
time trying to track down new NDB's within this range, and finally came
up with a new logging of a 500w station in Eastern Creek, Manitoba
(305-YQ). This station has an awesome signal, making me wonder why it
was never heard here before. This was Ultralight NDB #182 here,
received with a "G" loopstick PL-380 inductively coupled to a 12"
diameter Longwave FSL.

73, Gary DeBock (in Puyallup, WA, USA)


ULR DX....LONGWAVE....1 More NEW Beacon tonight!!.......

robert ross
 

HI Guys:

Another round out on the Deck.....the Skunk went back to his hole.....and the temp dropped 2 Degrees to 40 F....was starting to get a little chilly on the Keester sitting in a plastic lawn chair...can the Snowmobile Suit be far off????

Also had 1 Longwave TA Broadcaster poking though....with ......

171 Radio Medi Un from Nador, MOROCCO @ 0117 UTC with AA String Music.

Logged 1 More New Beacon ...New to both the OVERALL and ULR LOGS.

RADIO USED........TECSUN PL-380 with DeBock Frankensteiner 7 1/2 Inch Ferrite Rod Antenna

ULR LOG TOTALS are now.............132 Stations Logged
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

73..............ROB VA3SW

Robert S. Ross
London, Ontario CANADA

******************************************************************************
204 GB Buffalo, NEW YORK Oct/30/11 0048 UTC FAIR
"Plazz Greater Buffalo Airport"
NEW STN ULR LW # 132
120 Miles
ROSS, ONT.
******************************************************************************


Re: Working with shorter (and cheaper) ferrites - The Backpack FSL

Gerald Wolczanski <jerrywolczanski@...>
 

Polydoroff's design, found in:
http://groups.yahoo.com/group/ultralightdx/files/Ferrite%20Sleeve%20Loop
%20Antennas/

entitled: "2266262_Antenna_System_for_Wireless.pdf

His design did use a single powdered-iron toroid core with Bakelite ribs
to provide spacing for the wire. Frequency was 300kHz. His bump in
performance, over a non-loaded loop equated to the effective
permeability (Ue) of the material....in his case a modest 1.7 (4.6dB)

I'm not trying to dredge up arguments regarding this antenna type, only
trying to point out that it appears toroid cores have been used - and
powdered iron at that.

His antenna dimensions seem to suggest the specific length-to-diameter
charts (to determine Ue) that apply to rod antennas do NOT seem to apply
to this antenna type. Whether it does in a general sense for this
antenna configuration, I haven't a clue.

Both ferrite and powdered iron appear to be available in ~5 - 6" OD.

Jerry W
KI4IO
Warrenton, VA

On Sat, 2011-10-29 at 08:42 +0100, Michael wrote:
Expanding on this idea, has anyone tried using a row of
25mm or larger dia RF ferrite cores simulating a
thick hollow ferrite rod in a budget FSL?

Are diameter and length or is the mass of ferrite inside
the coil more determinant?

A smaller coil diameter might be in part offset by greater
length if more cores were used, pressed firmly together,
and/or by using a trangular array of three rows of cores,
thereby increasing the mass of ferrite.

Pre-empting experimental results, what performance
might theory suggest?

Ferrite cores are, I know not why, more affordable than
a recommended number of rods or bars. However, the
cost-performance ratio might not be better.

Michael UK

----- Original Message ------------------------------------------------------------------------

From:Kevin S
Subject: Working with shorter (and cheaper) ferrites - The Backpack FSL

I've been swamped at work lately, but have managed to do some experimenting with Ferrite Sleeve Loop
(FSL) antennas using shorter ferrites, seeing if smaller and cheaper FSLs are possible. Graham's
initial FSL article indicated that ferrite length in itself is not a critical parameter: it is the
coil of wire that receives the signal, not the ferrite. As long as there is sufficient ferrite in
the vicinity of the coil, providing the "FSL effect" if you will, the signal developed in the coil
should be the same. Some of Steve R.'s experiments earlier this year seemed to confirm this.

To test this, I recently built what I call the Backpack FSL, a summary of which is now posted here
in the Files Section, in the "Ferrite Sleeve Loop Antenna" folder (bottom of the main Files page).
This design uses 65 mm (about 2.5 inch) ex-Soviet NOS ferrite rods, which are of the same #400
ferrite material as most other ex-Soviet ferrite. I have also started to rough out a large FSL
using the 62 mm Soviet bars, sold by at least a couple eBay sellers, which run about three for a
dollar depending on the quantity.

. . .



------------------------------------

Yahoo! Groups Links



ULR DX...LONGWAVE.....2 New Beacons Logged tonight!!...........

robert ross
 

Hi Guys:

Out on the Back Deck again tonight for some Longwave Beacon Dxing...at least until the "Big Fat Skunk" decided to pay me another visit!! Guess he's taken a shine to eating all the Black Oil Sunflower Seeds below our bird feeders!! Or....Maybe he wants to do a little Beacon Dxing with me???!!! Whatever his motive....I'm not tangling with him!! HAHAHA.....

Before I retreated back into the house, I was able to log 2 New Beacons.......both from OHIO. One of these was New to the OVERALL LOG ...and they are both NEW to the ULR LOG!!

Temp out there tonight is 42 Degrees F...but I'm sure it will drop before I go out for Round 2 later tonight (After Joe Skunk leaves!!)

RADIO USED...........TECSUN 380 ULR with DeBock Frankensteiner 7 1/2 Inch Ferrite Rod Antenna

ULR LONGWAVE Totals are now........131 Stations Logged
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

73.........ROB VA3SW

Robert S. Ross
London, Ontario CANADA

*************************************************************************************
239 HKF Middletown, OHIO Oct/29/11 2330 UTC FAIR
Hook Field Airport
NEW STN ULR LW # 130
289 Miles
ROSS, ONT.
*************************************************************************************
380 FZI Fostoria, OHIO Oct/29/11 2345 UTC FAIR
RELOG...But NEW ULR LW # 131
168 Miles
ROSS, ONT.
*************************************************************************************


Re: BOG antennas

Tom McKee K4ZAD
 

Rick,
 
Many thanks for your BOG antennas post and the link that it contained.
 
Having had several great performing long Beverage antennas at a previous QTH I was astounded by the great results achieved with the very short BOG antennas.  Your comments about your lunch time experiments with 30 ft. of wire on the ground and the directivity that it exhibited were extremely interesting.
 
The article that your link suggested contained the following statement: "Now raise the whole wire length off the ground to around head height. They (sic) station should drop very significantly in strength or vanish entirely."
 
Your results plus that statement open a whole new field of antenna experimentation for me as I had always considered Beverage type antennas to be out of reach for me on my small lot and impractical for temporary (a few hours) use due to the support requirements.
 
Do you, or anyone in the group, have any theories about why (and how) these antennas work so differently (and so well for their short length) from the true, slightly elevated, Beverages?
 
A car, a nearby and generally unused big parking lot, a PL-380 and a 7600GR, and two 100 ft. extension cords should provide me with a start at some interesting listening fun. I'll try a few turns of wire around the RX to couple the signal into them. Results to be reported.
 

Tom McKee
============================
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