October 2, 2014 Club Meeting
Thursday, October 2, 2014 at 7:00 PM Red Cross Building, 60 Hawthorne St., Medford, OR (across from Hawthorne Park)
Program: Basics of DSP using Gnuradio. Building an SDR Receiver, Tom McDermott, N5EG
This month’s program will be a tutorial on Digital Signal Processing, using Gnuradio to demonstrate the results, and to ultimately build an HF SSB/CW SDR receiver from the building blocks in the demo (without writing any code). This presentation was given at the recent ARRL/TAPR Digital Communications Conference in Austin.
Rumor has it that a contingent from SOARC and RVARC will mount a county expedition for the California QSO Party October 4th and 5th. Those interested or curious might want to talk with Scott Cummings or Carl Van Orden at the club meeting on October 2nd.
Announced in the October 2014 issue of The Repeater.
Meeting Notes
From the November 2014 issue of The Repeater.
RVARC - Minutes for October 2, 2014
The meeting was called to order at 1900 PDT in the meeting room of the Red Cross building - Medford, OR by Todd Carney, K7TFC.
Bill O’Brien, KG7NII recently obtained his General Class license. Visitors include Phil and Janis Frazier, who expressed interest in the emergency communications aspects of ham radio.
New Business
Scott, NA7OM spoke briefly about the upcoming California QSO Party, and the County Expedition effort of the Rogue RF Project in Del Norte county. The contest is October 4-5.
Don Bennett, KG7BP announced the next license exam session will be Saturday, October 25 at the firehouse in Phoenix.
Don Bennett, KG7BP was appointed to the nominating committee for the upcoming election of officers. Anyone interested in serving in any of the positions should contact Don before the next meeting.
PACIFICON is next weekend in California. Swaptober Fest will be held on October 25 in Rickreall. OR.
Old Business
Jackie Wobbe, KC7WWJ reported that the women’s club, WHAMS, has 30 members. Complete with t-shirts and hats, the group has access to 3 repeaters, and has active nets, along with many social activities.
Treasurer’s report
Lud, KB2EVN, reported a balance of $3577.93 in the club treasury.
Todd, K7TFC, showed a short video showing examples of HF DXing, using a microphone a lots of audio processing. The meeting was put on hold at 1932 PDT for “eyeball QSOs” and coffee. The meeting was called back into session at 2000 PDT
Presentation.
Tom McDermott, N5EG gave a presentation on Digital Signal Processing using gnuradio. Topics included theory of DSP and software applications. Use of Gnuradio DSP blocks to construct a tunable SSB receiver was demonstrated, listening to a pre-recorded segment of the entire 20 meter ham band.
The meeting was adjourned at 2100 PDT.
Submitted by Carl VanOrden, W7BRO Secretary
