[SPAM] Re: JR 10SX

[Bill Glaze]

Well, John and I flew there just yesterday, for most of the day.  I've 
flown on 14,15,16,17,18,24,32, 44, plus 6 meters.  Never been hit; never 
seen anybody get hit with a VERIFIABLE spurious signal.  I have, 
however, seen wind conditions that looked as if they might be 
interference.  Got a lot of stories about that; it's about the trickiest 
field I've flown on for wind  conditions.  (John did have a radio 
problem yesterday, however; his transmitter battery alarm went off 
because his transmitter battery was going dead.  Is that what they mean 
about a dead spot?)
I remember well Mark Spicer yelling "interference" just as I happened to 
be observing his airplane.  He claimed aileron interference; I could 
plainly see the airplane; I had been watching it.  The ailerons weren't 
deployed.  He was, however, in a "gust" area.  People fly there day 
after day with no problems.  Could it be that the same radio, when 
installed in a pattern airplane, automatically receives some "ghost" 
interference that it doesn't receive when that same receiver is in an 
IMAC airplane?  Or a sport plane? (IMAC contests held with complete 
security.) These next 2 happened when I was new on the scene: Another 
top flyer claimed that his radio quit.  A bystander said he was watching 
him when he just plain stalled it on a landing approach.  Another top 
flyer also claimed he was "blocked."  Later examination showed a dead 
receiver battery.  This, of course, wasn't broadcast to the folks. Funny 
about these pattern airplanes, ain't it?  And, of course, Peter 
Collinson flew with us all day; never got a hit.  As I say, John's 
monitor showed more interference from another field that gets flown at 
all the time, than it did at this one.  Why don't I get hit?  Why don't 
others get hit?  Sorry; even bad luck luck doesn't stretch that far.
But, still and all, my guess is that if the large transmitting antenna 
wasn't visible, there would be nothing said.  As far as handing out 
transmitters, there is no excuse for ineptness; I almost lost one of 
mine at the Joe Nall, (when I used to attend) because of an Impound 
mistake.  As I say, having flown there for some 6 or more years now, I 
would like to be shown, just once, a verifiable problem.

Bill Glaze
Bob Richards wrote:

>Bill,
>
>I am one of the people that will not fly at that
>field. I went to two contests there, at the first,
>lots of people crashed from interference (five or
>six?). At the second, same situation, and I almost
>crashed from interference. Both times all I heard from
>club memebers were "we've never had a problem here". I
>could buy that at the first contest, but not the next,
>since I SAW the problems at the first contest.
>
>I did a check with a spectrum analyzer there at the
>second contest, but it was not conclusive. However,
>while I was there under the shelter, a flyer asked for
>a pin on one of the ham freqs. The club member who was
>handling the impound gave it to him. A few minutes
>later the flyer came back, said he almost crashed, and
>asked if I saw anything on his freq. Before I could
>dial in that freq, the impound person, the one that
>gave him the pin, said "oh, we have a problem on that
>freq". I was appalled.
>
>I would like to know why I was getting hits there.
>I've not had a problem anywhere else that I have
>flown. I had talked with someone after the fact about
>what I should be looking for based on the particular
>radios that seemed to be getting hits. I suspect there
>is a logical explanation for why the hits were
>happening, too lengthy to go into online. I believe
>there is a problem there. I'm sorry, but I will not
>fly there until it can be explained, and I don't think
>that is going to happen as long as the club members
>want to believe there is no problem.
>
>Bob R.
>
>
>--- Bill Glaze <billglaze at triad.rr.com> wrote:
>
>  
>
>>Ed:
>>Do you not think that we will always be subject to
>>interference as long 
>>as we are "secondary" users?  Admittedly, more could
>>be done. 
>>As an aside: I fly frequently at a field that has a
>>huge (2000 ft. tall) 
>>antenna directly behind us.  It is no more than 300
>>yds. away at the 
>>flyers 6 o'clock position.  Yet, even though pattern
>>flyers won't come 
>>and fly there, (probably because of the frightening
>>specter of that 
>>powerful antenna) folks fly there literally every
>>day of the year with 
>>no interference.  I'm one of the frequent flyers. 
>>Unfortunately, it 
>>seems that most of the pattern folks have just
>>enough information to be 
>>dangerous when they shun this field..  BTW: a check
>>for interference 
>>shows that there is less interference literally in
>>the shadow of this 
>>antenna, than there is at another local  field, yet
>>the other field, 
>>which shows a higher level of "hash" is quite
>>popular.  Ignorance is bliss.
>>
>>Bill Glaze
>>
>>    
>>
>
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