Interesting when we lived in Albuquerque from 1980 to 1995. Most of the RF
services for the city and much of central and northern New Mexico resided
on Scadia Peak at the eastern side of Albuquerque. The FCC made an annual
trip up from Denver. Two weeks before that trip, there was a scramble up
"The Crest" to clean things up. A couple of months after the visit, things
went back to "normal". Remember, New Mexico is known as Manna Land (don't
put off to tomorrow what you can put off to the day after tomorrow).
Dave - WØLEV
On Wed, Oct 27, 2021 at 7:12 PM Jim Brown <jim@audiosystemsgroup.com> wrote:
> On 10/27/2021 6:29 AM, Gary Peterson wrote:
> > Every AM broadcast station is required to perform annual measurements,
> searching for these types of problems. I contract to perform spectral
> measurements for most of the AM stations within a 100 mile radius of my
> home. I have the necessary equipment and travel to within approximately 1
> kilometer of each transmitter site. I measure each station’s occupied
> bandwidth, measure harmonics, up through and including the 6th and search
> for spurious signals, below, in and above the broadcast band.
>
> Yes. But do those spectral measurements also include intermod products?
> I started out in ham radio in jr high school with two 5kW non-DAs within
> a mile of each other and about 1.5 miles from me, on 930 and 1470 kHz
> producing a strong product at 3870 kHz. There may have been others
> products, but that one gave me a lot of grief.
>
> 73, Jim K9YC
>
>
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
--
*Dave - WØLEV*
*Just Let Darwin Work*
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|