HFU HF Underground

Loggings => North American Shortwave Pirate => Topic started by: Ct Yankee on April 14, 2016, 2340 UTC

Title: Red Beacon Radio 7610 AM 2340z 4/14/16
Post by: Ct Yankee on April 14, 2016, 2340 UTC

Weak reception, some static

2340z  "Ah-ah-ah" song
2342z Roll Over Beethoven
2345z Old time rock n roll song unid
2346z Maybelline
2349z Some Elvis tune
2351z See ya later alligator
2353z Unid Rockabilly
2355z Jailhouse Rock
2357z She's My Baby
4/15/16
0006z  Jailhouse Rock
0009z  Roll Over Beethoven
0013z Honeycomb

Title: Re: Unid 7610 2340z 4/14/16
Post by: MDK2 on April 14, 2016, 2342 UTC

AM or USB? I'm not hearing anything either way, but we like having it included in the subject heading. Thanks!

Title: Re: Unid 7610 2340z 4/14/16
Post by: Ct Yankee on April 14, 2016, 2344 UTC

Hmmm...I don't know if I'm that deft.  AM I believe.

Title: Re: Unid 7610 AM 2340z 4/14/16
Post by: JoeFLIPS on April 14, 2016, 2348 UTC

2346- hearing music right at the S3-4 noise level
2354- "Jailhouse Rock"

Title: Re: Unid 7610 AM 2340z 4/14/16
Post by: JohnS on April 14, 2016, 2359 UTC

7610 is dead quiet here.

Title: Re: Unid 7610 AM 2340z 4/14/16
Post by: Rafman on April 15, 2016, 0101 UTC

I have confirmed it was Red Beacon Radio that I logged earlier...

Title: Re: Unid 7610 AM 2340z 4/14/16
Post by: Red Beacon Radio on April 15, 2016, 0140 UTC

thanks for the logging and reception reports ;) but im just running well under a watt of power doing continuous testing.
low level modulation affords this ability to operate at very low levels of power without compromising the modulation level and allows real world testing at low power levels.
ive purchased new audio manipulating software in an effort to tweak and utilize as much amplitude modulation as possible with minimal distortion, maximum dynamic headroom, phase cancellation elimination and minimal compression but as anyone who is into this hobby as much as i am knows, its quite difficult to adjust and calibrate very good sound for AM with a bandwidth of 5Khz, tailoring this for weak reception but not overdoing it for strong reception, there is always a trade-off when dealing with AM broadcasting, when trying to squeeze as much flat response sound as possible into 5hz to 5Khz.
the testing is comprised of a remote SDR that is located 5 miles away from the transmission site, receiving the test transmission at a steady S3-4 simulating poor reception conditions with occasional noise and interference allowing me to calibrate and adjust the modulation as necessary.
as the saying goes, the better you can improve your modulation, sound and efficiency for AM, the better listeners will hear you during points of poor reception.
as i continue to test, the tektronix scope will record any thresholds crossed that i can correct later.
im quite the stickler for this  ;D
stereo tool - https://i.ytimg.com/vi/3bdrT29H5Xw/maxresdefault.jpg
this is some really damn good audio manipulating software.