Why FM mode carrier on 107.3MHz from Mount Isa?

[JR4ENY/1]

Yes.

I can hear FMBC stations from Mount Isa every night these days.

101.7 102.5 103.3 104.1 104.9 106.5 107.3

And around equinox we can hear high-power FMBC stations from Cairns

101.1 105.1 105.9 106.7 107.5

and from Townsville

101.5 104.7 105.5.

Attached files are 104.7 from Townsville and 105.1 from Cairns.
Both seems to have carrier-like as the same as 107.3 from Mount Isa.
(only 1 time I could see trace on those frequencies this August)

My antenna is 6el yagi for VOR.
So lower frequencies are no good because of gain.

Anyway it is curious for me to see carrier in FM modulation on 107.3MHz.

de JR4ENY/1 Awa in Kawasaki JAPAN PM95SN