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2691 discussions

SBARC: Wtd Rohn 45G Tower Sections
by WB6WCW＠aol.com 21 Aug '12

21 Aug '12

Hello SBARC Members: I have a ham in the northern part of the county that is looking for a few(?) Rohn 45G tower sections..... He does have a suitable trailer for hauling same.... He can't use 'smaller' sections because of the extremely high winds in his are (100+ MPH). Any help would be appreciated. Tnx & 73 Bill Gross W6FF email: _w6ff(a)sbarc.org_ (mailto:w6ff@sbarc.org) Cell: (805) 722-0070

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Still Need Ham Operators for Santa Barbara Triathlon
by Rick Whitaker 20 Aug '12

20 Aug '12

If you are at all interested in supporting the SB Triathlon, there are many positions on the Mesa. For this section (the run) of the event, you don't have to show up until 0800 and should be home by 1300. The more Ham Operators we have, the safer we can make this event. Please contact me at rickwhtr(a)cox.net of phone 964-5440, 73 Rick Whitaker

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Santa Barbara Marathon - It's older than you think.
by Jay Hennigan 20 Aug '12

20 Aug '12

Did you know there was a full marathon in Santa Barbara from 1965 through 1984? Historical notes from the race director regarding the race are at the link below, including a shout-out to SBARC. The marathon was abandoned after the number of finishers declined to 114 in 1984 and returned in 2009 with 1,686 finishers, again with SBARC support. http://sbrunning.org/Races/SBMarathon.html -- -- Jay Hennigan - CCIE #7880 - Network Engineering - jay(a)impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV

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Cheap SDR & Raspberry Pi too
by B.Bascom 16 Aug '12

16 Aug '12

I very cheap USB dvb-t receiver that can be used as a software defined radio with GNU radio running on a Raspberry Pi. http://sdr.osmocom.org/trac/wiki/rtl-sdr rtl-sdr DVB-T dongles based on the Realtek RTL2832U can be used as a cheap SDR, since the chip allows transferring the raw I/Q samples to the host, which is officially used for DAB/DAB+/FM demodulation. The possibility of this has been discovered by the V4L/DVB kernel developer Antti Palosaari. Specifications The RTL2832U outputs 8-bit I/Q-samples, and the highest theoretically possible sample-rate is 3.2 MS/s, however, the highest sample-rate without lost samples that has been tested so far is 2.8 MS/s. The frequency range is highly dependent of the used tuner, dongles that use the Elonics E4000 offer the widest possible range (64 - 1700 MHz with a gap from approx. 1100 - 1250 MHz). When used out-of-spec, a tuning range of approx. 50 MHz - 2.2 GHz is possible (with gap). This little computer runs UNIX (Debian), just plug in keyboard, mouse (USB), Display (HDMI), SD card, Ethernet cable, and away you go! Incredibly cheap and small, and very easy to administrate with 30,000 application packages installed at the click of your mouse! Unbelievable! http://en.wikipedia.org/wiki/Raspberry_Pi http://www.newark.com/raspberry-pi/raspbrry-pcba/raspberry-pi-model-b-board… RASPBERRY-PI - RASPBRRY-PCBA - RASPBERRY PI MODEL B Price: $35.00

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ACTUATOR ( Motor drive ) for medium-sized satellite dish on Craigslist
by Marvin Johnston 15 Aug '12

15 Aug '12

Here is something that some of you may be interested in: http://santabarbara.craigslist.org/zip/3207753408.html It is listed in the free section of Craigslist. Marvin

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SBARC Wednesday Nets - Trivia Night!
by Michael＠NO6O.com 15 Aug '12

15 Aug '12

SBARC Wednesday Nets -- TRIVIA NIGHT! ------------------------------------- Beginning at 7:00 pm on the following linked repeaters: 146.79 MHz (La Vigia Hill) 224.08 MHz (La Cumbre Peak) Minus offset, PL 131.8 ---------------------------------- 7:00pm - 7:30pm -- Amateur Radio Newsline (www.ARNewsLine.org) 7:30pm - 8:00pm -- !! TRIVIA NIGHT !! Hosted by Dave Milton, K6HWN 8:00pm - 8:30pm -- Swap Net, hosted by Dave Milton, K6HWN ---------------------------------- Then, at 8:30pm, on 144.210 MHz, is the VHF Single Side Band Roundtable, typically hosted by Ken Owen, N6KTH. This popular roundtable is now in its fourth year. Some People start checking in early between 8:00pm and 8:30pm. For details, visit www.n6kth.com/vhf. ---Michael, NO6O

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Morse Code on Mars
by auditron＠juno.com 15 Aug '12

15 Aug '12

>From EDN Magazine Morse Code on MarsDoug Grant - August 10, 2012 Since everybody else is writing about the Curiosity Rover, I guess I need to write something about Mars—like the fact that there’s Morse code up there. I’m not sure whether this got covered anywhere in the popular media, but the ARRL reported it a while ago. If you look carefully at the treads on the wheels of the rover vehicle, you’ll notice the predominant, zigzag pattern, but you’ll also see a section of tread on each wheel that’s patterned with dots and dashes. The official word is that they serve as “visual odometry markers” that tell the mission controllers how far Curiosity has roved and let them verify that the rover’s wheels are indeed turning when the rover’s telemetry says it is moving. But I think they’re just a really, really cool hack that some ham on the development team at the Jet Propulsion Lab in Pasadena couldn’t resist. The dots and dashes spell out “JPL” in the surface dust on the Red Planet. Detail of Mars Science Laboratory Curiosity Rover with tread pattern that will leave an impression on the Martian surface spelling "JPL" in Morse Code (·--- ·--· ·-··). Photo courtesy of NASA/JPL. Yes, Morse code is alive and well. A while back, I had lunch with a professor and some of his grad students. The prof knew I was a ham and told his students that I could actually deode Morse code signals in my head. They were astonished, partly because they didn’t know Morse was still being used anywhere, and partly because a human could copy it without a computer. Turns out there are a few other examples of Morse code that turn up in unlikely places. The next time you watch a baseball game being played at Fenway Park in Boston, look carefully at the white lines in the scoreboard on the left-field wall. You’ll spot some dots and dashes hiding in plain sight in two of the vertical stripes. They spell out “TAY” and JRY,” for Thomas A Yawkey and his wife, Jean R Yawkey; the Yawkeys were co-owners of the Red Sox for many years. There is also a “Morse Code” wine in the shops; the specific varietal is spelled out in dots and dashes on the label. The next time you’re shopping for wine, bring along a ham to tell you what it is.

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Radio Shack HTX-202 For Sale
by Marvin Johnston 13 Aug '12

13 Aug '12

This HT works great and is in excellent condition. The battery is shot and won't hold a charge longer than a second, if that. Included is a 12V charger, antenna, and dead ICOM (I think) battery - $35.00. Give me a call at 687-8881. Marvin, KE6HTS

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Santa Barbara Triathlon
by Rick Whitaker 13 Aug '12

13 Aug '12

Volunteer Ham Operators are needed for the Saturday August 25th, annual Santa Barbara Triathlon. This is a long course (swim, bike, run) and we will need a lot of help to ensure a safe and enjoyable event. If you are interested please email me at rickwhtr(a)cox.net and I will be happy to give you information. I am pretty sure we will get event T-shirts for volunteering. The event starts at 0700 and is usually over by noon. Please help us support this event. 73 Rick Whitaker VP of Operations SBARC 964-5440

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SBARC will be at Astro-Vaganza on Saturday, August 11 from 10am to 4pm...
by Rod Fritz 11 Aug '12

11 Aug '12

If you want to help out with this event at the Natural History Museum (you get in free), call Rod Fritz, WB9KMO at 637-0985 anytime after 7am Saturday. Hope to see you there. - Rod

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