NLK vs NAA de NQC

[NQC]

Hey RobRich and All,



I noticed on your LW list you have NLK but not NAA.

In the past I have logged a strong beat note/ data stream on 24 KC for NAA as copied at Boston.

Then a SECOND ( weaker at Boston) beat note/ data stream would rise up from the upper “edge” of NAA . This would occur as I approached NLK on 24.8 Kc.

So the two may be “ blended “ together to a degree, but to sum ,look for NAA JUST A BIT below NLK.

Not sure why the USN put these so close together, but I guess they had their reasons.

Not sure about conditions in FL, but again, if you look JUST below NLK, you may be able to add NAA to your list.

Just figured I’d try and toss another station your way if you can get separate copy.

de

NQC

[RobRich]

A quick VLF skim at ~0100z via Airspy HF+D and 31' vertical.

NAA Cutler 24.0
NLK 24.8
NPM 21.4
HWU 21.75
NML 25.2
NAU 40.75
NAA Arlington 50.0
WWVB 60.0

Those were obvious waterfall traces. There might be more under 100KHz if digging deeper.

[NJQA]

NAA Arlington has been gone for a long time.

https://en.wikipedia.org/wiki/NAA_(Arlington,_Virginia)


DISA had their HQ there for years, but they have since moved to Ft. Meade.  I don’t know who uses the site now.

(edit: correction to URL)

[NJQA]

This list shows two possibilities for a station heard near 50 kHz:

https://sidstation.loudet.org/stations-list-en.xhtml

[NQC]

 Hey All,

RobRich- Good to see it on your list

NJQA, The NAA Call sign was moved from Arlington ,VA to Cutler,  ME many, many years ago.

de NQC

[RobRich]

I just did a rather quick glance at the waterfall, so 50Hz might have been even local RFI/EMI.