[450] Fwd: Mystery QRM (2)

John Foege john.foege at gmail.com
Mon May 20 11:04:29 EDT 2013 

:-)


On Mon, May 20, 2013 at 4:43 PM, Rich <t41 at optonline.net> wrote:

>   Excellent points from the list master....I don’t think that anything
> got out of hand; they were properly upbraided and no-one should be
> butt-hurt at the rocket club...which we all know is a bunch of uber-geeks
> anyway. Maybe this will inspire a couple of them to get their licenses?
>
> I see a couple of future-engineers ....perhaps one of them even speaks
> German?
>
> [image: Winking smile]
>
>
>
>  *From:* David McKenzie <k1fsy at vhfwiki.com>
> *Sent:* Monday, May 20, 2013 10:29 AM
> *To:* 144.450 Mailing List <450 at lists.vhfwiki.com>
> *Subject:* Re: [450] Fwd: Mystery QRM (2)
>
>  sounds like they failed to follow club procedures and that the ham link
> was unused and secondary anyway. while their experiments are cool and
> interesting, we have a few people who worked really hard for their licenses
> and don't like interference! bob did the right thing by emailing them, and
> they are doing the right thing by inquiring about the use of the club
> license. There may not have even been a ham on the balloon project so they
> were potentially breaking federal law with their balloon which is serious
> and deserves some reprimanding.
>
>
> On Mon, May 20, 2013 at 10:20 AM, John Foege <john.foege at gmail.com> wrote:
>
>> And as a clarification, from their own project supervisors....not Bob.
>>  On May 20, 2013 4:19 PM, "John Foege" <john.foege at gmail.com> wrote:
>>
>>> Sure but it's a shared medium....as much as we would like to think we
>>> own it, we don't. It's proper to check if the channel is not in use. I
>>> highly suspect they did in fact do a local check up there and didn't hear
>>> anything. It's different when the QTH is at 35,000 ft. Then it's LOS to the
>>> entire NE. Either way....the probability of them choosing 450 or 440 AND
>>> running into a group of people on VHF is so astronomically low. Moreso that
>>> they only do this for 2 hours a year. And even crazier....we tracked it
>>> down to the source.....
>>>
>>> All in all pretty low odds of any of this happening!
>>>
>>> Certainly, the tone with which the students responsible were addressed
>>> was imho harsh...
>>>
>>> Oh well...
>>> On May 20, 2013 3:40 PM, "Rich" <t41 at optonline.net> wrote:
>>>
>>>>   Sorry, but they WERE in the wrong. If you are going to transmit from
>>>> a 100k foot location, its incumbent upon YOU to make sure the frequency is
>>>> clear. Also Bobs note was not accusatory or nasty. I think we just leave it
>>>> where it is.
>>>>
>>>>
>>>>
>>>>  *From:* John Foege <john.foege at gmail.com>
>>>> *Sent:* Monday, May 20, 2013 4:47 AM
>>>> *To:* 144.450 Mailing List <450 at lists.vhfwiki.com>
>>>> *Subject:* Re: [450] Fwd: Mystery QRM (2)
>>>>
>>>>   Bob,
>>>>
>>>> I agree with Chris...these people certainly feel like they just got
>>>> repirmanded for doing absolutely nothing wrong.
>>>>
>>>> I'd really suggest sending a letter to everyone involved and telling
>>>> them, that by no means does this represent a problem, and that you are very
>>>> happy that the students are using HAM radio for backup telemetry data...
>>>>
>>>> That you were suprised how far they got out...
>>>>
>>>> etc. etc....
>>>>
>>>>
>>>> We don't want to poo poo people just because we managed to hear their
>>>> +10,000 FT ASL transmitters :P
>>>>
>>>>
>>>> On Mon, May 20, 2013 at 5:10 AM, chris <cralt at comcast.net> wrote:
>>>>
>>>>>  Hopefully they are not discouraged from using ham radio for this
>>>>> stuff. Maybe just suggest that they try shifting to a different freq so
>>>>> they dont interfere with us and we dont interfere with them. There is
>>>>> plenty of room in that part of the band for everyone.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>  On May 19, 2013, at 7:01 PM, David McKenzie wrote:
>>>>>
>>>>>  cool, glad it's resolved and that we figured it out
>>>>>
>>>>>
>>>>> On Sun, May 19, 2013 at 5:47 PM, Bob <n1ujs at toast.net> wrote:
>>>>>
>>>>>> The latest:
>>>>>>
>>>>>> ---------- Forwarded message ----------
>>>>>> From: Kristina A. Lynch <Kristina.A.Lynch at dartmouth.edu>
>>>>>> Date: Sun, May 19, 2013 at 5:28 PM
>>>>>> Subject: RE: Mystery QRM (2)
>>>>>> To: Max Fagin <maxfagin at gmail.com>, "David G. McGaw" <
>>>>>> David.G.McGaw at dartmouth.edu>
>>>>>> Cc: "Eric W. Hansen" <Eric.W.Hansen at dartmouth.edu>, "Yorke J. Brown"
>>>>>> <Yorke.J.Brown at dartmouth.edu>, "Maxwell H. Fagin" <
>>>>>> Maxwell.H.Fagin at dartmouth.edu>, Bob <n1ujs at toast.net>, "Todd S.
>>>>>> Anderson" <Todd.S.Anderson.14 at dartmouth.edu>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Dave, Eric-
>>>>>> Please relay my apologies to the group who were disturbed by our
>>>>>> transmissions.
>>>>>> We use the ham radio as our backup telemetry system on our research
>>>>>> balloons,
>>>>>> for about 2 hours once or twice a year;  we have been doing this for
>>>>>> approximately five years.  It is possible that Amanda Slagle (who
>>>>>> graduated
>>>>>> last year) was in the habit of telling Dave McGaw ahead of time?  And
>>>>>> this
>>>>>> protocol got slipped since she left.  We can certainly be sure to let
>>>>>> Dave know
>>>>>> in the future, if that would be helpful.  Also, now that our DNT
>>>>>> system is working,
>>>>>> we could significantly drop the data rate on the backup ham
>>>>>> transmissions if that
>>>>>> would be helpful.  Please let me know.
>>>>>> Regards
>>>>>> Kristina Lynch
>>>>>> Dartmouth Physics/GreenCube Faculty Mentor
>>>>>> www.dartmouth.edu/~aurora
>>>>>>
>>>>>>  ------------------------------
>>>>>> *From:* Max Fagin [maxfagin at gmail.com]
>>>>>> *Sent:* Sunday, May 19, 2013 3:02 PM
>>>>>> *To:* David G. McGaw
>>>>>> *Cc:* Eric W. Hansen; Yorke J. Brown; Maxwell H. Fagin; Bob; Todd S.
>>>>>> Anderson; Kristina A. Lynch
>>>>>>
>>>>>> *Subject:* Re: Mystery QRM (2)
>>>>>>
>>>>>>   The interfering transmission on 144.440 MHz was coming from the
>>>>>> GreenCube 6 balloon payload which was in the air over Mt. Washington from
>>>>>> 10:30-12:30 this morning.  The flight is over, and there will be no more
>>>>>> transmissions on that frequency today. Todd and Kristina (cc'ed) are the
>>>>>> lead investigators on the payload, and should be contacted with questions
>>>>>> about the transmissions.
>>>>>>
>>>>>> -Max
>>>>>>
>>>>>> On May 19, 2013, at 2:21 PM, "David G. McGaw" <
>>>>>> david.g.mcgaw at dartmouth.edu> wrote:
>>>>>>
>>>>>>  Hi Eric,
>>>>>>
>>>>>> It is possible that Yorke and Max have a packet transmitter on their
>>>>>> research balloons.  If so, they need to check frequencies beforehand AND
>>>>>> have to contact you as the trustee of W1ET or me as the officer of record
>>>>>> before using the callsign.
>>>>>>
>>>>>> Yorke, Max?
>>>>>>
>>>>>> David N1HAC
>>>>>>
>>>>>>
>>>>>> On 5/19/13 1:32 PM, Eric W. Hansen wrote:
>>>>>>
>>>>>> Interesting hypothesis.  Any ideas?
>>>>>>
>>>>>> Eric
>>>>>>
>>>>>> From: Bob <n1ujs at toast.net>
>>>>>> Date: Sunday, May 19, 2013 1:18 PM
>>>>>> To: Eric Hansen <eric.w.hansen at dartmouth.edu>
>>>>>> Subject: Re: Packet transmissions
>>>>>>
>>>>>>   Some have suggested it might be a weather balloon?  In any case,
>>>>>> it ceased transmitting about an hour ago.
>>>>>>
>>>>>> Thanks for looking into it.
>>>>>>
>>>>>> Bob N1UJS
>>>>>>
>>>>>>
>>>>>> On Sun, May 19, 2013 at 1:08 PM, Eric W. Hansen <
>>>>>> Eric.W.Hansen at dartmouth.edu> wrote:
>>>>>>
>>>>>>>  That is really strange.  Our repeater operates on 444.950, and
>>>>>>> that's the only source of transmission I am aware of.  We haven't operated
>>>>>>> packet for years.  I will forward your message to some other people who can
>>>>>>> help track this down and get back to you if I find anything out.
>>>>>>>
>>>>>>> Thanks for the heads up.
>>>>>>>
>>>>>>> Best,
>>>>>>> Eric Hansen
>>>>>>>
>>>>>>> From: Bob <n1ujs at toast.net>
>>>>>>> Date: Sunday, May 19, 2013 11:25 AM
>>>>>>> To: Eric Hansen <eric.w.hansen at dartmouth.edu>, ham radio club <
>>>>>>> ham.radio.club at dartmouth.edu>
>>>>>>> Cc: 450 <450 at lists.vhfwiki.com>
>>>>>>> Subject: Packet transmissions
>>>>>>>
>>>>>>>     To whomever it may concern,
>>>>>>>
>>>>>>> There are strong packet transmissions being sent on 144.440 that are
>>>>>>> identified by the W1ET call sign.  They are causing a bit of a disturbance
>>>>>>> to a large group of operators on 144.450.  I imagine this is unintended, as
>>>>>>> the last time something like this happened it turned out the transmissions
>>>>>>> were intended for a frequency 600 khz higher, but the operator had
>>>>>>> inadvertently pushed the "shift button".
>>>>>>> Could you please check your station and see if it is responsible?
>>>>>>>
>>>>>>> Here is a copy of the transmission:
>>>>>>>
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150425h4403.66N/07114.**84WO-19C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150430h4403.55N/07114.**74WO/A=041788-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150436h4403.44N/07114.**66WO/A=041928-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150448h4403.20N/07114.**47WO/A=042230-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150454h4403.08N/07114.**40WO/A=042363-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150500h4402.96N/07114.**34WO/A=042468-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150506h4402.84N/07114.**28WO-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>> *W1ET*>WIDE1-1>WIDE2-1>APOT21 <UI>:/150512h4402.76N/07114.**22WO-20C
>>>>>>> Good fix 5 Seconds*
>>>>>>>
>>>>>>> It has been suggested that the actual transmission bothering us may
>>>>>>> be a "retransmission" of your signal by an "unknown station", however the
>>>>>>> only call sign in the transmission is yours.
>>>>>>> The signal I am receiving is quite strong (40-60 over s-9 to a
>>>>>>> phased pair of 10 elements) in the direction of roughly 20 degrees from my
>>>>>>> location in Newtown, CT, and appears to be horizontally polarized.
>>>>>>>
>>>>>>> Thank you for any assistance you can provide us in this matter.
>>>>>>>
>>>>>>> Bob N1UJS
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> 450 mailing list
>>>>>> 450 at lists.vhfwiki.com
>>>>>> http://lists.vhfwiki.com/cgi-bin/mailman/listinfo/450
>>>>>>
>>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
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