Date: Jan. 28, 2011

RE: INTERFERENCE SIGNAL I.D. # SNC-01-a

Geographic Location: Salisbury, NC   728 Klumac Rd.

EMS: Band & Frequency: Amateur bands 160m, 80m, 40m, 20m, 17m, 15m, 12m,

           10m (Harmonics also exist outside the Ham Bands!)

Type of Interference: AM carrier with considerable AC hum (modulation).

           In LSB Mode, the strong raspy sound is S7 to S9+ strength.

Time of Occurrence:  Source is present day and night; it is most severe when

           propagation for "sky wave" signals is poor.

Harmonics (interval): On 80m and 40m bands, interval between harmonics

is 40Hz (+ or - 1 to 3 Hz) 

Does Source move up or down the Band?

Yes! Some times it drifts down-band for 15-20 minutes, reverses, then drifts

up-band. It's behavior does not confirm that it is malicious interference.

COMMENTS:

This particular Source is the most prevalent and obtrusive.

Several times brief voice transmissions occurred on 7.136 kc. I believe it was an ambulance enroute to the local regional hospital.

Our first inclination is to ask FCC for a list of all licensed two-way radio operations in Rowan County, NC as a starting point.

Assistance to identify and eliminate the interference is requested as our work to demonstrate the feasibility of a network of Senior Citizen Radio Societies or Clubs, depends upon the quality & condition of the radio spectrum. A Model will be developed for the benefit of residents in Elder Care communities. Thank you!

Submitted by:

C.F.Scheid/W3OHV                                                                                                                          728 Klumac Rd. Apt.#336C                                                                                                                               Salisbury, NC 28144