Frequency hopping on Low Band today

[mancow]

I am seeing quite a bit of frequency hopping today from somewhere. The band seems to be open to the South from here (near Kansas City) since I am also hearing Mexican traffic on 34.820.

The hopping is at 30.00-30.550 and 32.150-32.700.

 

[prcguy]

What antenna was feeding your receiver? I see the noise floor tapering off rapidly below 30MHz and am curious if its the antenna response or receiver characteristics.
prcguy

 

[mancow]

That's a result of the Airspy normal function. It rolls off sharply on the edges like that and tracks with the tuning. Anti-imaging is the reason I believe.

The antenna is a 32 MHz dipole about 30 feet up in a tree fed with RG6.

 

[kkn50]

What identifies it as Mexico?
>I am also hearing Mexican traffic on 34.820.

 

[mancow]

I don't know what the hopping is from. I assumed maybe from the south since I was getting Spanish on that other freq at the time.

 

[NC4RR]

30-50-mhz

yes i have been maualy tuning my 570s through these freqs very interesting would be more fun with sdr radio good luck
Railroad