[SADXA] HF amplifier for sale

n7bxx at q.com n7bxx at q.com
Wed Jun 26 18:06:13 EDT 2013


The first work that comes to mind i S**T!

I was on a TVI comittee a long time ago but the focus then was to pasafy heighbors when the hamn got into there TV or phone.
I am willing to take an active part.
Gail


----- Original Message -----
From: "JERRY" <jdwothe at cox.net>
To: "Southern AZ DX Association E-Mail Reflector" <sadxa at mailman.qth.net>
Sent: Wednesday, June 26, 2013 1:58:44 PM
Subject: Re: [SADXA] HF amplifier for sale

Gail:

Did Tucson ever have an RFI team. I know in the past RFI teams were 
primarily out to get the ham out of the TV and other devices but I 
wonder if there was a group and if they got involved locating other RFI 
sources. I know someone who has some of the right equipment to do RFI 
Fox hunting that might be receptive to be invited to join a group like that.

How about if you be the king of RFI?:-)

Jerry
On 6/26/2013 1:54 PM, n7bxx at q.com wrote:
> is it time to organist some sort of RFI group? Might be fun/productive to get together for dinner some evening and see what happens.  I am sure interested.
>
> Gail N7BXX
>
>
> ----- Original Message -----
> From: "JERRY" <jdwothe at cox.net>
> To: "Southern AZ DX Association E-Mail Reflector" <sadxa at mailman.qth.net>
> Sent: Wednesday, June 26, 2013 1:49:54 PM
> Subject: Re: [SADXA] HF amplifier for sale
>
> Hi Tom:
>
> The noise issue is a messy one at best and now days with all the
> electronics its very difficult to pin down what is making the noise.
> Anyone who has tried to listen to the weak signals  for very long have
> run into the problem whether they know it or not. The problem is far
> worse now than when I began in the 50s when just about the only thing
> that made noise was  the TV sets.
>
> Through the years I have had several cases of various kinds of RFI and
> have had  good success with Ferites with a lot of the problems. Just the
> addition of adding a computer to the station is introducing RFI. Then
> there are the peripherals for computers, like printers, USB hubs,
> routers etc. Been there with all of them at one time or the other.
>
> Unfortunately I did not record with any of those things sound like and
> would not now recognize many of them if I did hear it. Some times I get
> noises one would say for sure is a power line noise but isn't. The TEP
> guy from Tucson, who is now gone, a couple of times came out and
> listened to what I was hearing and tracked the items down even though we
> knew up front it was not Power line stuff. That will never happen again
> I would bet. No anyway if the management knows about it. Gary, the TEP,
> guy found a water heater thermostat causing problems and it was over a
> quarter mile away. He also found a dog fence causing a huge problem  for
> me until he came up with it.
>
> I know Dick, W1KSZ, has looked at this a bit and maybe someone in the
> club will come up with some of the  typical sounds for all the identify
> with. We will see.
>
> Heard you on 6 last night calling Jimmy at V31 but did not hear you make
> a report. I did not hear a  thing from him when you were calling. I
> worked him a couple of days ago so that took the pressure off. I also
> caught the VP2V/W9DR a very few minutes after V31IV. They were both new
> ones for me, Nos 62 and 63 worked.
>
> In any event I guess we will have to work around the noise thing until
> something better comes along.
>
> Jerry
>
> On 6/25/2013 9:00 AM, Tom Kramer wrote:
>> Hi Jerry,
>>   A sad commentary on corporate America but becoming more and more
>> common as companies simply ignore regulations until they get litigated
>> in some way. However, my main objective is to highlight this part of
>> your message:
>> ".. folks ... seem not to either know what they are hearing..."
>> as that is often my problem.  I get all kinds of interference but have
>> a hard time deterring what it might be.
>>
>>    I am not certain how we might do this but a nifty club program would
>> be demonstrating what different RFI signals might sound like, not just
>> power line, but plasma TVs, internet Wi-Fi, washing machines etc.  I
>> can with relative ease record what my neighbors washing machine sounds
>> like on 6m ( and 17, 15,12,10, 2 and 222 mHz).  Also can record the
>> Wi-Fi interference from my ISP on 160 -> 10m.   Can others in the
>> group record plasma TV RFI and other interference that they can identify?
>>
>>   I just had an occurrence this morning while running FSK441 Meteor
>> scatter on 2m.  Suddenly was hit but an S9 noise.  Off the center
>> frequency it sounded like white noise but tuning to the signal peak it
>> was pulsating.  I got out my FT817 and put on a 12 inch wire antenna
>> and walked my yard and near neighbors houses only to discover it was
>> the USB hub on my own desktop. I could copy it up to 100 ft away from
>> the shack.  I use it to connect two USB to serial adapters for
>> connecting my two main radios for computer interface.   Disconnected
>> the hub and connected the USB/serial adapters direct to desktop ... no
>> RFI.  BUT what's even more weird is when I connected the USB hub to
>> the back of the computer and use it for the keyboard and Wi-Fi modem
>> and ...NO RFI.  Hard to figure out.
>>
>>
>>
>> ----- Original Message ----- From: "JERRY" <jdwothe at cox.net>
>> To: "Bob Coomler" <w7swl at yahoo.com>; "Southern AZ DX Association
>> E-Mail Reflector" <sadxa at mailman.qth.net>
>> Sent: Sunday, June 23, 2013 11:27 AM
>> Subject: Re: [SADXA] HF amplifier for sale
>>
>>
>>> Hi Bob:
>>>
>>> Well at issue here is we need folks that have RFI to make a list of
>>> their issues and call them in so we have something to work with.
>>>
>>> The problem I personally have is pretty minor however there are folks
>>> much closer to a big noise source that seem not to either know what
>>> they are hearing or it isn't a big enough issue to do something. What
>>> I am afraid of is one of these days a big source will show up and
>>> there is no quick path to resolve it as there was when Gary was
>>> around. Going the route you suggest and what is probably going to
>>> have to happen will take weeks and maybe even months to resolve.
>>>
>>> I mentioned it a few month ago at radio club before Gary retired and
>>> the reception was like a flock of deer in the headlights. I just
>>> cannot believe no one in town has RFI problems.
>>>
>>> It took Gary and I many months to track down all the issues within
>>> about 2.5 miles of my place that I could hear on one band or the
>>> other. Right now it is great but in time that is going to change.
>>>
>>> I suspect TEP still has the equipment Gary was using but in time I
>>> also know corporations send stuff not being use to salvage, then when
>>> they need it, it wont be in the budget so they cant go out and buy new.
>>>
>>> Thanks for the input.
>>>
>>> Jerry
>>>
>>>
>>>
>>>
>>> On 6/23/2013 10:46 AM, Bob Coomler wrote:
>>>> If you are an ARRL member, I'd suggest contacting Mike Gruber, W1MG,
>>>> at the League headquarters. When I was living in northern
>>>> California, PG&E kept blowing off my complaints, but Mike was able
>>>> to work some magic and I had their undivided attention.  They ended
>>>> up bringing in an independent RFI consultant from the east coast.
>>>> My problem was found, solved and PG&E had the foresight to make it
>>>> an in-service for the staff. I doubt that TEP would similarly
>>>> respond, but Mr. Gruber does seem to get things done.
>>>>
>>>> Bob W7SWL
>>>>
>>>>
>>>>
>>>>> ________________________________
>>>>> From: JERRY <jdwothe at cox.net>
>>>>> To: Southern AZ DX Association E-Mail Reflector
>>>>> <sadxa at mailman.qth.net>
>>>>> Sent: Sunday, June 23, 2013 10:01 AM
>>>>> Subject: Re: [SADXA] HF amplifier for sale
>>>>>
>>>>>
>>>>> Hi Ted:
>>>>>
>>>>> Sad to say that TEP finds that noise abatement  by their power
>>>>> lines is
>>>>> no longer a concern to them. They have not and do not intend to
>>>>> replace
>>>>> Gary. Our only first step is to contact TEP and file an RFI
>>>>> complaint. I
>>>>> have done that and they blew it off without even a reply. Then if I
>>>>> understand the process we are to file a compliant with the state but I
>>>>> am not sure who as I have not looked into it. If that does not get
>>>>> them
>>>>> off the dime then we are to file a complaint with the FCC outlining
>>>>> dates and who we have contacted regarding the RFI.
>>>>>
>>>>> I would hope it doesn't get to that but it might in order for them to
>>>>> get someone in that position.
>>>>>
>>>>> Regarding the tower, it is sold.
>>>>>
>>>>> BTW to put that tower up in Pima county would be just about impossible
>>>>> with the situation we find ourselves in with the county.
>>>>>
>>>>> Jerry
>>>>>
>>>>>
>>>>> On 6/23/2013 9:49 AM, Theodore DOWNING wrote:
>>>>>> Jerry,
>>>>>>
>>>>>> Good to see you at SADXA and an interesting talk. I am ready to move
>>>>>> out into the boondocks after returning home to listen to the urban
>>>>>> noise.  Who is the contact point in TEP now that Gary has retired?
>>>>>>
>>>>>> Second, do you still have Donny's tower?  I may be interested if it
>>>>>> has engineering papers...for my new place in the boonies.
>>>>>>
>>>>>> Ted w7key
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