Re: [IRCA] V7AB 1098 OC with 60 Hz hum!

[Neil Kazaross <neilkaz58@xxxxxxxxx>]

KATK IDed yesterday 1152.:The station you can leave on all day for
America's Best Music, KATK 740 The ??? (certainly didn't say The Hippo and
this seems a slight format change from oldies).

Today in passing KONA 610 good, CKST clobbering WHO. Regular DU's only
at maybe bare audio levels. I expect I will be quite happy with my 1200
recording for domestics.

Do you think Star 657 is undermodulated compared to some? With WSCR IBOC
off a few days ago, carrier was constant SAM lock and often 30 dB above the
noise floor. A clear 10 dB more than need for some non slopped DU audio,
but I could only barely tell the soft mx was Christian.

73 KAZ

On Tue, Oct 3, 2017 at 8:48 PM, Neil Kazaross <neilkaz58@xxxxxxxxx> wrote:

> DXers further east of us who can null WTAM while aiming antenna's main
> beam W to WNW should have chances for V7AB as sunrise at 1130 moves further
> east. On 740 I need the same K's as Tim. I need Texarkana but they are
> silent so off the needed list LOL.
>
> Not usual domestics this morn at 1200 were KNML 610 NM (very rare), KPOW
> 1260 WY (very rare) KCCF 1350 CO and KNAB 1140 CO (easy via SSS) but
> shouldn't be on this early and had mx clearly earlier so not some 6 am PSA.
>
> DU's audible at poor levels were 738 and 594 and a couple other just
> barely maybes. So not so good for DU. Yesterday was lots better.
>
> OK let me go see if I had KATK as good as you. Then more listening to
> yesterday morning and hoping to pull enough audio on 585.  73 KAZ
> Barrington IL
>
>
>
> On Tue, Oct 3, 2017 at 7:34 PM, Tim Tromp <kilokat7@xxxxxxxxx> wrote:
>
>> Noted from West Michigan too, V7AB is now peaking here past their 1130 UTC
>> sign off time.  And as Neil discovered, a distinct 60 Hz audible hum can
>> easily be heard on their open carrier during big signal peaks and clearly
>> visible on the SDR.  Here's a nice Perseus screenshot showing that hum
>> (the
>> +/- 60 Hz lines centered on 1098 kHz) during one such signal peak:
>>
>> http://amdxer.com/spectrograms/1098_V7AB_1136_UTC_25SE17.JPG
>>
>> No audible DUs heard this morning here, just the usual carriers.  One
>> interesting catch was 740 KATK from Carlsbad, NM. at 1140 UTC which hung
>> in
>> there for about 10 minutes all alone until Baraboo, WI. blew it out of the
>> water a few mins before 1200 UTC.  KATK only logged two other times here.
>> I still need these K calls on 740: KIDR-AZ, KVFC-CO & KCIK-HI (I can
>> dream!)
>>
>> 73,
>> Tim Tromp
>> West Michigan
>> Perseus SDR + southwest phased BOGs
>>
>>
>> On Tue, Oct 3, 2017 at 3:53 PM, Neil Kazaross <neilkaz58@xxxxxxxxx>
>> wrote:
>>
>> > This carrier from the Marshall Islands was strong enough this morning at
>> > sunrise (about 1150 UT) for me to hear some 60 Hz hum and also to see
>> the
>> > two carriers about 60 Hz to the sides of 1098.
>> >
>> > If you want audio from this one you need to try no later than 1130.
>> >
>> > 73 KAZ Barrington IL
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