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40 beam questionaire update

Subject: 40 beam questionaire update
From: JKAHRS@delphi.com (JKAHRS@delphi.com)
Date: Fri Oct 6 00:16:13 1995
On  3-OCT-1995 10:03:32.1 gb546 said to JKAHRS
   > <<Original message somehow left out the choices. Sorry...>>
   > Here's one for y'all (Been hanging around Richard too long...)  -
   > I'm side-mounting a Mosley 2el 40m beam at 75' on Rohn 25, with one
   >face of the tower oriented due north-south. The station is located in
   >the Hudson Valley of New York, and I plan to be active during both
   >stateside and DX contests.
   > Here's the question. The IIX RM-16 sidemount allows 300 degrees of
   > rotation about the tower. This leaves a 60 degree "blind spot". The
   > following is my list of blind spots. Please pick which one you thing
   > would be best (or least bad), and tell me why. I'll try to summarize,
   >or forward the replies to someone who can (listening, Scott?).
   > N (330-30)         S (150-210)        SW (210-270)          SE (90-150)
   > NW (270-330)       NE (30-90) [I know, but I said six choices...]
   > Thanks for the info.
   > 73, Greg
   > Greg Becker NA2N
   > gb546@bard.edu

Greg,
Just looking at my beam heading map centered on NW Florida (Home to OPAL!)
which cant be too much difference than your QTH, I find that 180 gets me to
KC4AA-land and 210 to ZL.  I think I would choose 150-210 and remember that
the beamwidth of a 2 el beam is quite broad.  My guess that the 1/2 power
points are at least +/- 30 deg which would put you only 3 db down at 180
deg....FWIW.
73, Hank/K2UVG
internet: jkahrs@delphi.com

>From floydjr@nr.infi.net (jim floyd)  Fri Oct  6 04:34:25 1995
From: floydjr@nr.infi.net (jim floyd) (jim floyd)
Subject: UPDATE VII
Message-ID: <199510060334.XAA15050@larry.infi.net>



CQWW RTTY CLAIMED SCORES 1995

Compiled by
WA4ZXA

---------------------------------------------------------------------
OPERATOR CLASS               SCORE    QSO's   PTS   QTH    DX   ZONES      
---------------------------------------------------------------------

SINGLE OP/HP ALL BAND
   P40JT                  1,664,569   1485   4369    ?     ?      ?
   K1NG                   1,347,367   1381   2711   181   224    92
   S56A                   1,254,800   1228   3137      322       78
   VY2SS                  1,047,510   1257     ?    123   159    57   
   N4CC                     710,940    957   1734   169   157    84
   WE9V                     703,131   1066   1937   159   139    65
   K2PS                     619,718    805   1657   142   163    69
   NA4M                     430,810    757   1286   147   122    66
   WA3WJD                   314,534    541    986   133   125    61
   W3GG                     302,872    472   1048    94   133    62
   N0AB                     258,475    620   1055   108    90    47 
   W7LZP                    256,563    682    983   147    67    47
   VS6BG                   2 217,536    434   1133    38    57    97 
   NA2M (HP or LP)          148,560    376    619   106    86    48
   JH7QXJ                   143,500    313    875    37    81    46
   WA6SDM                   140,499    426    603   124    61    48


SINGLE OP/LP ALL BAND
   4X6ZK                    804,528    938   2718    41   194    61 
   AB5KD                    639,846   1112   1734   180   122    67  
   4X0A                     487,012    758   2234    40   131    47
   KA4RRU                   437,987    754   1373   125   134    60
   KA1SIE                   399,434    754   1442   119   112    46   
   WA4ZXA                   285,948    512   1014   110   115    57
   WB2HMF                   127,160    313    578    96    80    44
   KB2POP                   105,225    352    575    85    64    34 
   KF2OG                     95,634    317    506    92    61    36
   N7UJJ                     93,696    370    488   110    42    40
   N4PYD                     56,784    189    338    69    61    30
   WA5JWU                    45,474    167    286    73    50    36   
   N2VYU                      1,548     30     43    18     9     9  


SINGLE OP/ASSISTED
   NO2T                     498,624    729   1484   121   149    66
   N4ONI                    485,030    775   1435   143   135    60
   V31JU (UN or ASST)       421,852    734   1604   133    86    44
   JR5JAQ                   355,266    517   1462    46   132    65
   N2OL                     307,840    634     ?       296 
   N2FF                     293,601    525   1023   114   114    59
   KE7GH                    186,935    587    763   145    54    46 
   OH2LU                    158,388    338    788    29   125    47



SINGLE OP/SINGLE BAND
10 Meters

15 Meters
   ZS6NW                    222,120    624   1857     33   64    23
   N4SR                      21,084    117    251     21   41    22 

20 Meters
   JA5EXW                   255,910    565   1630     43   81    31
   WB7AVD                   152,395    576   1051     49   66    30  
   N1OAZ                    114,600    426    955     41   63    16
   VE7OR                     92,575    349    805     45   45    25  
   VE6WQ                     83,625    299    669     44   55    26 
   JR2BNF/1                  31,920    121    336     21   48    26
   K3EST                        ?      113     ?      21   39    14
   WA2WYR                     5,082     48    121      8   25     9


40 Meters
   K1IU                     185,277    674   1227     54   71    26
   9A1A                     156,240    558   1302     35   62    23 
   ZS6EZ                     87,000    275     ?      39   50    20 
   W2UP                      83,760    380    698     49   50    21
   WF5E                      53,954    352    509     50   35    21
   KN6DV                     46,552    363    506     51   22    19

80 Meters


MULTI SINGLE/HP 
   OT5T                   1,983,016   1551   4166    248  142    86
   VP5C                   1,845,152   1767   4232    185  182    69
   WU3V                   1,388,862   1337     ?       ?    ?     ?
   DF7RX                  1,325,280   1164   3012    232  122    86
   PI4COM                 1,108,357   1046   2687    120  214    77 
   K2TW                     868,436   1089           136  188    74
   WA4QVD                   744,640   1153   2080    157  139    62
   PI4CC                    620,165    753   1885     81  182    66  
   N9ITX/7                  519,930   1060   1635    159  101    58
   VK9LZ                    517,000    784   2219     79   91    63
   PI4ZLD                   470,463    627   1563     73  164    63
   VE3FJB                   404,550    606   1450    111  119    40    
   N9ENA                    199,045     ?      ?       ?    ?     ?        



MULTI SINGLE/LP
   AA5AU                    630,400    929   1600    166  151    77 
   K8UNP                    562,872    803   1497    147  158    71
   KF4KL                    432,928    665   1304    132  138    62
   T99MT                    287,523    553   1389     65  107    35    


MULTI OP/MULTI
   W3LPL                  2,154,387   2045   3953    214  237    94 
                                                      

I know it has been awhile since I posted an update but the scores have
just about stopped. I will wait one more week and post it again for 
the last time. I will note that it will be the last. If you have any 
scores or know of anyone wishing to get them they should do it within
the next week. 

You need to look at the entire sheet every now and then. People are 
sending me corrected scores and I am changeing them on the sheet. So 
if someone moves up and down it is because of new info they have sent
me.


When you see a number between the QTH and the DX column it means that
the station added those two together and sent it to me. If they send
me a split of them I will update it.

Don't forget that info beside your call like this (UN or ASST) means
that you never sent which you were. If I do not know then I put you
in the higher one. Let me know if I have anyone in the wrong class.


73's Jim // WA4ZXA @N4ZC <> floydjr@nr.infi.net

ps: Remember if you send me your breakdown I cannot repost them on
the reflector. If you wish for everyone to see the breakdown you will 
need to send them to the reflector yourself.
 




>From Fred Hopengarten" <k1vr@k1vr.jjm.com  Fri Oct  6 01:16:30 1995
From: Fred Hopengarten" <k1vr@k1vr.jjm.com (Fred Hopengarten)
Subject: Slopers
Message-ID: <3074755f.k1vr@k1vr.jjm.com>

Topic:    Sloper Construction

One of the K1VR ops has been complaining that we're not
strong enough into the Caribbean on 80 meter SSB during
contests.  He is, apparently, distressed that some W4's get
through to P40V before we do, requiring us to wait 80
nanoseconds or so.

The present antenna for this purpose is a two element
vertical phased array (lined up at 70 degrees/250 degrees)
in the "bidirectional" mode (160/340), which has, in theory,
virtually no gain (OK, perhaps 1 dB) when we want to talk to
the Caribbean.

Questions:

*    What simple antenna, erectable within the next 20 days,
     would you put up to be loud from New England into the
     Caribbean?

*    Assuming that you say:  "A sloper," at what height
     would you start it?  (Good heights for my situation are
     either 60 feet or 88 feet.)  At what angle would you
     slope it (30-45-60 degrees???).  How long would you
     make it (66-70 feet?, or 135-140 feet?)  Any
     construction tips?  Would you use any radials (and what
     would they look like?)?

I ask for these thoughts on slopers because the "buzz" on
slopers seems to be that sometimes they work, and sometimes
they don't.  KJ9I has recently posted a tip that a sloper
should not begin too close to a tower.  Anyone else got some
thoughts?

In responding, I am particularly interested in your thoughts
on this path (New England to the Caribbean).
-- 
                      Fred Hopengarten K1VR
           Six Willarch Road * Lincoln, MA 01773-5105
     home + office telephone:  617/259-0088 (FAX on demand)
                   internet:  k1vr@k1vr.jjm.com
            "Big antennas, high in the sky, are better
                       than small ones, low."

>From Charles Epps <epps@netcom.com>  Fri Oct  6 06:09:56 1995
From: Charles Epps <epps@netcom.com> (Charles Epps)
Subject: California QSO Party
Message-ID: <Pine.3.89.9510052240.A28525-0100000@netcom23>

Several of us will be operating multi-single in the California QSO Party 
this weekend from rare El Dorado County up in the foothills of the Sierra 
Nevada mountains.  We'll be using the callsign WB6IRC.  Please work us if 
you hear us.

73 de Rusty, W6OAT


>From kf3p@cais.cais.com (Tyler Stewart)  Fri Oct  6 06:19:51 1995
From: kf3p@cais.cais.com (Tyler Stewart) (Tyler Stewart)
Subject: TWO WEEKS WITH THE FT1000MP
Message-ID: <199510060519.BAA07487@cais.cais.com>

>> In the FT1000MP you can now individually select the IF filters in each IF
>> (8.125 MHz and 455 KHz), just like in the TS-850.
>
>Can anyone out there explain just how this "feature" does any good? This is
>the antithesis of how a CONTEST radio's ergonomics should be designed. Things
>should be made **simpler** for the poor overworked operator, not more
>complicated. What's the advantage of selecting, say, a 6 kHz filter in the
>8.125 MHz IF and a 500 Hz filter in the 455 kHz IF, unless you just want to
>see how the rig works without its filter options. Or conversely, why would
>you want a 500 Hz filter in the 8 MHz strip and a 6 kHz filter in the 455,
>unless you just like to listen to broadband noise? I used (and hated) an
>original model TS950 at J6DX in '91 that had this type of filter selection
>mechanism. I'm all for having lots of bandwidth options, but manipulation at
>each individual IF is carrying the concept way too far. I assume the use of
>"can" means that you don't **have to** individually select the filters,
>doesn't it?
>
>Otherwise, the radio sounds pretty good. I'm looking forward to getting to
>fool with one.


I'm just guessing at this point, but you'll notice the vertical row of
buttons to the right of the IF filter displays?  I believe these will change
both IF's with one keypress...then if you want to change one or the other,
you can step it ala Kenwood....looks like the best of both worlds to me!

I'll know better next week!

73, Tyler KF3P


>From ni6t@ix.netcom.com (Garry Shapiro )  Fri Oct  6 08:27:21 1995
From: ni6t@ix.netcom.com (Garry Shapiro ) (Garry Shapiro )
Subject: CQP: Siskiyou County
Message-ID: <199510060727.AAA05855@ix6.ix.netcom.com>

Since my good friend Rusty, W6OAT has put in a shameless plug for his 
M/S effort from El Dorado County, I thought it would be OK to say:


CALIFORNIA QSO PARTY!!!!!!!!!!!!

SIKIYOU COUNTY operation by NI6T.

Siskiyou is a large but aparsely-populated county bordering Oregon near 
Klamath Falls, among other places. I will be contesting from the K6VX 
QTH near Macdoel, a wide spot in the road northeast of Mt. Shasta.

I hope Ray gets a rotor cable on the 40m beam, or at least a rope.

I hope Ray has put up at least something on 80m.

I hope he got his noisy pole fixed.

I hope it doesn't snow.

I hope I don't fall asleep on the 480 mile drive.

CU  in the contest.

BARNUM CORRECTUS FUIT!

Garry, NI6T

>From km9p@is.net (Bill Fisher, KM9P  Concentric Systems, Inc.)  Fri Oct  6 
>13:10:06 1995
From: km9p@is.net (Bill Fisher, KM9P  Concentric Systems, Inc.) (Bill Fisher, 
KM9P  Concentric Systems, Inc.)
Subject: Storm damage...
Message-ID: <199510061210.IAA10062@mail1.is.net>

        
        Pretty rough.  A tree hit our house and took out all of the service
to our house including the phones.  The tree would have hit my guy wires had
I still had a tower at home.   

        I drove up to the mountains at 6:00am, fearing the worst.  One mile
from the hill I could see the tall tower was still standing.  Wind gusts
were still 30-40mph (I figure).  The stream I have to drive through to get
to the top looked like something out of a white water rafting commercial.  I
decided to take my chances (not very smart) and drove through it.  Water was
over the hood of my Landcruiser, but I made it.  No damage as of 7:30am
yesterday to the towers or antennas.  We'll see for sure tomorrow.

        K4JPD lost three towers.  I talked to his wife briefly.  She told me
not to worry about coming over on Sunday to work on the 80m beam...  It and
the tower were laying in the tops of oak trees about 50' up.  She said it
looked like a war zone out there.  She also said they had no idea how they
were going to get the towers out of the trees without cutting all the trees
down.  At 8:00pm the night of the storm I was talking to Steve about the
work we were going to do on Sunday and about the storm.  He said he wasn't
worried because he had good insurance.  Insurance won't replace the hours of
work it took to put up though.

N4RJ's made it through OK.  I'm not sure about the other contesters in the
area.  If they lived on the west side of town, I'm sure they lost antennas.
One guy on a local repeater was commenting about his newly installed TH7 and
how the winds ripped most of the elements off the boom.

Is there a company that insures antennas and towers?  Someone at the ARRL
suggested there was a company that advertised in CQ, but I havn't found it.

Thanks


73

Bill
---
Bill Fisher, KM9P   -    Concentric Systems, Inc.  




>From broz@csn.net (John Brosnahan)  Fri Oct  6 14:43:55 1995
From: broz@csn.net (John Brosnahan) (John Brosnahan)
Subject: Slopers  Fred Hopengarten
Message-ID: <199510061343.HAA00556@uucp-1.csn.net>

Fred, my use of slopers is fairly limited but I have had favorable results.
Originally built the 5 half-wave sloper array that appeared in the antenna
handbook, but for 20M--probably about 1977-- with good results but when I
put up a 2L quad, the quad was of course better.  Recent sloper
installations have included 2 for 160 and 1 for 80.  The 80 and most recent
160 ones were done for the XR0Y and CE0Z operations after I returned from
XR0Y and confirmed what I had learned from my previous experience with the
first 160 sloper and that is that you can't make them too long!  These were
1/4 wave slopers with about 1ft of wire between the feedpoint insulator and
the tower connection on the shield side.  My first 160 sloper was mounted at
160 ft and was cut to 135ft so that I could trim it to length but I had to
ADD 7 ft to get it down to 1825 KHz!  (As in, "I cut it off three times and
it was still too short!" from the late W0ENO.   Or, "Cut it a little short,
we can always splice it later." from K0RF--who is recovering nicely from
surgery and will be home in a few days, BTW.)

So when I installed the latest 160 sloper pointing in another direction(
with a different lay of the land) I just cut it to 142 ft thinking I was on
top of it now and it was still about 18 inches too short for resonance where
I wanted it.  Making me think that some of the reported problems with
slopers may be due to cutting them much too short and, without proper
instruments or patience, the requirement for lots more wire is never understood.

This held true on the 80 meter one which was mounted on another tower at 80
ft, and I had to make it much longer than suggested by the "half a dipole"
first approximation.  The slopers are installed with about a 45 degree tower
slope with respect to the tower and performed quite well with easy shots
into both CE0Z and XR0Y on both 80 and 160.  Which is a similar path to your
New England to Carribean and SA shot.  (Hey, what is wrong with me--why am I
trying to help some big time W1 station?)

So for my ground conductivity and mounting height and angle it has always
been necessary to make them much longer than one would guess.  But they seem
to work wuite well.

gl John  W0UN

John Brosnahan    W0UN
La Salle Research Corp      24115 WCR 40     La Salle, CO 80645  USA
voice 970-284-6602            fax 970-284-0979           email broz@csn.net


>From ni6t@ix.netcom.com (Garry Shapiro ) (by way of broz@csn.net (John 
>Brosnahan))  Fri Oct  6 14:44:00 1995
From: ni6t@ix.netcom.com (Garry Shapiro ) (by way of broz@csn.net (John 
Brosnahan)) (Garry Shapiro  by way of broz@csn.net John Brosnahan
)
Subject: 91B info in response to W0UN
Message-ID: <199510061344.HAA00582@uucp-1.csn.net>

After I suggested that the 91B discussion be taken off line to save
reflector BW, I received 8 or 10 requests from interested parties that it be
kept on line.  In the mean time Garry responded directly to me and with the
outpouring of interest I suggested that he cc: the reflector with his latest
comments, but unfortunately he isn't able to and asked me to repost his
message as well as my final comments, in order to satisfy the cravings for
91B info.

--John  W0UN

-------------------------------------
(from NI6T)

Many thanks for your detailed response, to which I add only a few 
comments.

You wrote: 
>

>The demands placed on a generator by a rapidly varying current load 
from a
>keyed or ssb modulated amplifier are especially difficult for a 
generator
>since the time constant of the varying load is much faster than the 
time
>constant of the response time of the mechanical governors on 
generators.
>This can be helped by running oversize generators (where the mass of 
the
>generator itself provides an additional flywheel effect) but this is
>difficult on an expedition. 

Virtually impossible, in fact. The decision to purchase the 3kVA Robin 
Diesel was made after many FAX exchanges between Mats and myself. I had 
done rough calculations as to what the amp might require or 
--alternatively--what we could expect from it for a given generator 
capapcity. Naturally, cost and weight were issues. Mats was justifiably 
concerned about moving generators across the reef. The Robin was a 
beautiful unit, however, with a self-starter, and ran like a clock. 
Diesel fuel is safer, of course, and there did not seem to be much of a 
weight penalty: it was about the same size as the 3.3 kVA gasoline 
unit. The battery for the self-starter became the means for putting a 
third station on the air, after losing a crucial power supply 
overboard. Mats spliced two battery cables, connecting his IC735 to the 
raw DC output of the Robin; the battery provided the peak current 
needed and he was QRV.

> It is also important to minimize the percentage
>change from min load to max load by running as much on the generator 
as
>possible so that max load is near the capacity of the generator by 
running
>lights and other gear even during the daytime to increase the current 
drawn
>under "min load"--ie amp not keyed.  This reduces the range over which 
the
>governor needs to to work and makes sure that the generator is not 
coasting
>during receive periods. 

With only a 3kVA generator, adding more loads only served to deprive 
the amp of steady-state power. In a situation like that, you are damned 
either way. 
>
>

>I was momentarily confused by "emitter" resistors in a vacuum tube amp 
but I
>assume that transistor terminology has become pervasive and that you 
mean
>the cathode resistors...

Har! Yes, that is exactly right. After 30 years of solid state 
electronics, I have forgotten what a cathode is.

 But the progressive failure of the cathode resistors
>doesn't explain the time delay that you noted between amp switching 
and the
>appearance of power.

Maybe not, but the time delay did increase, so perhaps the increase in 
cathode resistance influenced the control circuitry.
>
>

>Unbypassed cathode resistors do provide negative feedback (ie 
degeneration)
>and result in more drive being required but in a grid driven amp with 
lots
>of drive this is not a bug but a feature since you are throwing away 
most of
>your drive power in the untuned grid resistor anyway. 

I did not say it was a bug, and I am sure degeneration is used 
precisely to prevent overdrive by lowering gain.

  Any change in plate
>efficiency one way or the other is so small as to be a 
wash--especially in
>view of the requirement to add some series resistance in the plate 
lead to
>limit the energy dissipated inside the tube during an arc over.  
Typically
>this plate resitor will be on the order of 50 ohms and a cathode bias
>resistor will be about 1/5 of this value.  With only a few watts 
disipation
>required in the cathode resistor this is pretty insignificant compared 
to
>the 2 kilowatts of anode input power. 

Good point.

>
>But I must disagree with you on the statement of slightly compromised 
IMD
>statement when using catode resistors. (Snip)

 The Eimac
>design uses 11 ohms for the 4CX600J and the ETO 91B uses 12 ohms for 
the
>Svetlana 4CX800, which is a pretty close match to Eimac's design.

Actually, one always would expect degenerative feedback to reduce 
distortion, but I was actually looking at the published numbers in the 
Svetlana 4CX1600B data sheet--using 24 ohms and an apparently large 
conduction angle. I do understand that IMD numbers are misleading, due 
to to sensitivity of the cusps to operating point.I learned long 
ago--in an undergrad electronics lab project--that 
amplifiers--especially tetrode amplifiers---have so many interactive 
parameters as to make such comparisons quite difficult. My "test amp" 
then was my own homebrew pair of 6146's.



>I have to admit that I am a homebrew fan as well and I am building a 
number
>of single band 8877 amps.  I chose the 8877 since I had a lot of pulls 
left
>over from atmospheric radar projects.  If I were to go out and buy new 
tubes
>I would choose the Svetlana tubes at this point due to their price
>differential.  I feel that they are good tubes at a bargain price.  
Eimac
>tubes in general are also good tubes but are becomming prohibitively
>expensive for ham use, unfortunately.
>
That price differential is providing a feast for George Badger, W6TC, 
and Svetlana. The 4CX800A is priced virtually at the Eimac 3-500Z and 
the retail price for a 4CX1600B is only about $385! And I am told these 
prices are much more than what they can be had for in Russia! Ehrhorn 
is no fool: he has really created some gross margin by dropping his 
manufacturing and parts costs!

DXpeditioning, contesting, my newsletter and DXing have kept me from 
diving into this amp, and I do not have your resources, but I have 
accumulated most of the parts, and am eagerly anticipating the joy of 
building the beast--something I wanted to do as a kid. The local flea 
markets have been productive.  Wish I had a sheet-metal shop, but I do 
have access to help. I could use a 50 ohm 100W globar--the resistors I 
have are larger. Got any kicking around?

>
>I will try to work closely with the Heard group to insure reliable 
operation
>of the 91Bs.  My support is available both before the expedition and 
during
>it.  I feel pretty knowledgeable about the amps but obviously not as
>knowledgeable as the designers at ETO.

I am glad that you are there as a resource for the Heard Herd.One feels 
pretty helpless when the amp craps out in the middle of nowhere. I do 
feel, however, that for most DXpeditions, it probably makes sense to 
bring a moderate-size amp. 500W is a great improvement over 100 watts, 
and such an amp is certainly more manageable in terms of carrying, 
shipping and powering. That was the lesson I took home for next time.
>
Garry, NI6T

-----------------------------
response of W0UN

Garry, after my comment about the lengthy discussion and taking it off-line
from the reflector, I received a number of comments about how our discussion
was one of the more infomative ones in recent months and please don't take
it off the reflector.  Since I think we have wound down a bit at this point
and since I think your most recent comments were sent directly to me you may
way to cc: the reflector just to bring this to a close with all of the lurkers.

Been an enjoyable discussion and you raised a number of interesting
technical issues that got the juices flowing and got the old books down from
the shelf.  The cathode bias resistor is more complex in its effect than I
had recalled but it was nice to review all of my old books (and not find
much, in fact only one reference) and then give Eimac a call.  Been a while
since I have talked to the factory.  

I will continue to try and help ETO with the Alpha 91B issues and at a loss
to figure out what is involved with the delayed output issue.  WIll check
the schematics in more detail for some clue.

73 and thanks for the interesting discussion.

John  W0UN

BTW  if you cc: your latest note to the reflector then I will cc: this one
so that the lurkers know that it has quieted down with amicable results.  HI





>From broz@csn.net (John Brosnahan)  Fri Oct  6 15:53:46 1995
From: broz@csn.net (John Brosnahan) (John Brosnahan)
Subject: Slopers  Fred Hopengarten
Message-ID: <199510061453.IAA10930@uucp-1.csn.net>

>John,
>
>My experience with half slopers is that you need a big top hat above them.
>Usually a 40m beam or big 20.  K4VX's 160m slopers worked great on his 40m
>tower.  Mine at home also worked very well with a TH7 and 402CD above them.
>The problemed ones that I have heard about never have a big top hat.
>Usually just a tribander.  They either don't resonate at all or don't work
well.
>
>Bill

Bill,

This is what I have heard also, but haven't confirmed by testing the
hypothesis with little or no antennas for the sloper to work against.

The 160 sloper at 160ft has a 4L 40M KLM just above it and the 80 sloper at
80ft has a 4L 40M M-squared just above it (well a little further up, maybe 6
or 7 ft, but essentially what you are indicating.

73 John
John Brosnahan    W0UN
La Salle Research Corp      24115 WCR 40     La Salle, CO 80645  USA
voice 970-284-6602            fax 970-284-0979           email broz@csn.net


>From km9p@is.net (Bill Fisher, KM9P  Concentric Systems, Inc.)  Fri Oct  6 
>16:25:50 1995
From: km9p@is.net (Bill Fisher, KM9P  Concentric Systems, Inc.) (Bill Fisher, 
KM9P  Concentric Systems, Inc.)
Subject: Insurance
Message-ID: <199510061525.LAA12541@mail1.is.net>


Sorry for the poor description of my request.  I am looking for insurance
for my antennas that ARE NOT at my home.  This being the case, Allstate will
not cover the antennas under my home owners policy.  My agent said they
would not do a rider.  I felt like he was just trying to get me off the
phone though.  

I understand very few people would actually have antennas not located at
their homes, but was hoping someone have some help for me.

Oh... So far most have indicated that State Farm and Allstate will cover
antennas and towers under home owners policies.  

73

Bill
---
Bill Fisher, KM9P   -    Concentric Systems, Inc.  




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