AnabolicHippo wrote: ↑
Sun Dec 17, 2017 9:26 am
It is a regulatory agency within Canada, they are responsible for "Spectrum Management"; because of proximity to an airport, they are asking for more detailed scans. I'm thinking that the "2nd harmony" is referring to the second harmonic.
I'd question this - Industry Canada has vans very well equipped with measuring equipment and field engineers very well versed in how to use it - I got to meet two of them the day we were ready to end the test phase of our community's 1kW FM and they were quite insistent that they wouldn't accept any scans from us (coincidentally, I do have access to that sort of equipment), I suspect due to the possibility of us not being versed in how to use the measuring gear the correct way (having an analyzer is one thing, knowing how to use it to take a proper measurement is a very different, much more complex, thing).
I also question that they'd use "harmony" in place of "harmonic" unless that was a transcription error. Did the email come from NavCanada? That would also be strange, as they almost always go straight to Industry Canada with any pilot complaints. I guess what I'm trying to say is to verify that the request is legitimate - having worked with both NavCanada and Industry Canada extensively over several decades, what you're presenting seems quite out of the ordinary. Did the request come from somebody with a navcanada.ca or ic.gc.ca email address? Is this a new station, or have you been on air for awhile? What frequency are you on (it's also very rare for them to ask for any special measurements in the aircraft band unless you're at 107+ MHz)?
In short, the Rigol won't do what you need, not accurately - and an inaccurate measurement is more dangerous than not responding. Best bet, if it's assured that the request is legitimate, would be to book the date with your consulting engineer (or ask them for a referral if there's somebody else they know in the area who they think could do a good job more quickly), then go back to the originator of the email, tell them you've booked the consultant and the measurements are scheduled to be taken on x date. If they didn't send you a "shut it off, now" message, then it's unlikely that there have been any firm complaints, or somebody reported a problem and somebody else is just fishing around trying to find the possible cause.
Two disclaimers - I'm neither a lawyer nor a professional engineer, so this is an opinion only, but that's how I'd proceed if my station got a similar request.
Jeff Welton, CBRE
Regional Sales Manager - Central U.S.
Toll free: 1-877-662-8835, ext. 5127
Halifax Number: 902-823-5127
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