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Digital Mobile Radio Hotspots May Be Interfering with Satellite Uplinks, AMSAT Reports
by Levi C. Maaia, K6LCM 06 Sep '18

06 Sep '18

SBARC DMR users: This came out in the ARRL letter today. DMR hotspot usage is interfering with amateur radio satellite users! If you have a hotspot, please, please, please be sure you are operating on an appropriate simplex frequency. When picking a simplex frequency to operate a hotspot on it is important to maintain good operating practice. The important consideration here is not as much the 10 mW hotspot devices themselves but the 5W handheld transceivers and the 25W-50W mobile DMR units transmitting on the hotspot frequency. As there are NO suitable hotspot frequencies in the 435-450 MHz band segment, we suggest starting at the lower edge of the 431.00-431.60 MHz segment. Specifically 431.0125 MHz, 431.025 MHz and 431.0375 MHz are three good hotspot simplex channels that conform with the local SoCal 70cm bandplan. If you have neighbors close by who are using these frequencies already or you are on a promontory, you might consider using higher frequencies between 431.0375 and 431.600 MHz in 0.0125 MHz (12.5 KHz) increments. LCM Digital Mobile Radio Hotspots May Be Interfering with Satellite Uplinks, AMSAT Reports This week, AMSAT News Service (ANS) cited an August 27 report from AMSAT Vice President-Operations Drew Glasbrenner, KO4MA, saying that a digital mobile radio (DMR) signal has been interfering with the AO-92 (Fox-1D) satellite's 435.35 MHz uplink frequency. Glasbrenner said hotspots, repeaters, terrestrial simplex, and "anything not satellite" should never transmit in the segments 145.8 - 146.0 MHz or 435 - 438 MHz by international band plan. Well-known satellite enthusiast Patrick Stoddard, WD9EWK/VA7EWK, told ARRL that one DMR hotspot operating on the AO-92 uplink frequency in the St. Louis area has shifted to another frequency. But, he added, "I think there are still issues, since not all hotspots will report their frequencies and positions to websites such as BrandMeister or via APRS, where they appear on other sites such as http://aprs.fi." "There are others surely operating near satellite uplinks," Stoddard added. "For many, the 435 - 438 MHz satellite subband is a big piece of quiet real estate in a busy part of the 70-centimeter band for weak-signal work, repeater links, amateur TV, and other possible uses." Patrick Stoddard, WD9EWK, does a satellite demonstration at the Palm Springs Hamfest in 2017. Stoddard points out that FCC Part 97 addresses Amateur Radio operation in these segments, although regulations in many other countries may not be as detailed. §97.3(a)(7) defines auxiliary stations as, "an amateur station, other than in a message forwarding system, that is transmitting communications point-to-point within a system of cooperating amateur stations." Stoddard said this would include remote bases, EchoLink and IRLP nodes, and hotspots used for digital voice modes, as well as stations using these hotspots and nodes. Auxiliary stations may not transmit in the 145.8 - 146.0 and 435 - 438 MHz satellite subbands (among others in the 2-meter and 70-centimeter amateur bands), per §97.201(b). Further: §97.3(a)(40) defines a repeater as, "an amateur station that simultaneously retransmits the transmission of another amateur station on a different channel or channels." Stoddard said that because most hotspots operate on a discrete frequency, they would not qualify as repeaters, even if they operate like a repeater, per §97.205(b). §97.101(a) stipulates, "In all respects not specifically covered by FCC Rules, each amateur station must be operated in accordance with good engineering and good amateur practice." Stoddard remarked, "Whether the hotspot is interfering with a satellite downlink in a particular area, or it is interfering with the satellite uplink affecting a much larger area, this would not be good amateur practice." In addition to subbands where hotspots are not permitted, Stoddard said, §97.101(b) is also relevant. It states, "Each station licensee and each control operator must cooperate in selecting transmitting channels and in making the most effective use of the Amateur Service frequencies. No frequency will be assigned for the exclusive use of any station." Stoddard noted that frequencies used by satellites are usually incapable of being changed and are coordinated in advance of launch, while hotspots typically are frequency agile, and the frequencies used by those systems can be changed to avoid potential interference to satellites and other stations. -- Thanks to AMSAT News Service, Patrick Stoddard, WD9EWK/VA7EWK LCM Levi C. Maaia, K6LCM Director at Large | Co-Chair, Telecommunications Services Committee Santa Barbara Amateur Radio Club, Inc. a 501(c)(3) nonprofit public benefit corporation www.levi.maaia.com +1.805.604.5384

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Fwd: Goodearl trap 40/80 dipole specs
by David Hackleman 01 Sep '18

01 Sep '18

By the way gang, here are those gorgeous coils. Jack Goodearl WA6DQK included the instruction sheet with the sale. It’s time I put them to use. K6VML Sent from my iPhone

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OSH Closing early November
by Marvin Johnston 28 Aug '18

28 Aug '18

Hi all, OSH is closing all of their stores. Right now, there is a 10% to 30% discount on most things out there. I just found out when I went in to buy some tools, and figured some people here might be interested. Some of the hand tools were cleared out, but it seemed like most things were still available. Marvin, KE6HTS

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The New Improved Nevada QSO Party in October!
by Levi C. Maaia, K6LCM 27 Aug '18

27 Aug '18

FYI, this came in to the club webmaster today so I am passing it along … ==For release in publications in September, 2018== The New Improved Nevada QSO Party in October! The Sierra Nevada Amateur Radio Society is proud to present the Nevada QSO Party which will be an annual event on the second full weekend in October. This year it will start at 2000 hours Nevada time (PDST) on Friday, October 12 (0300z 10/13/2018) and run until 1400 on Sunday, October 14 (2100z 10/14/2017) The objective of this contest is to activate and work all 17 of the counties in Nevada. Nevada stations will work anyone, anywhere, and out of state stations will work Nevada Stations. All stations may be worked on the three different modes for up to three times on each HF band and only once on the VHF+ frequencies. Rovers in Nevada can be worked again when they change counties. The state of Nevada is one of the rarest U.S. States on the air. Be sure to work Nevada in the upcoming Nevada QSO Party; it will be helpful you when going for ARRL WAS (Worked All States award) and other awards like grid zones and counties. The VHF+ band will consist of all legal frequencies from 50 MHz up to 1300 MHz. In order to bring a lot of new hams into contesting, we are allowing the use of repeaters on these frequencies. There are linked systems which will allow out of state contacts. All modes will be allowed with the exception of the WSJT modes. On the HF side, Phone, CW, and Digital modes will add multipliers to the QSO points. All conversational digital text modes are allowed with all counting the same. Currently, the WSJT modes do not have a contest exchange message that is handled as a valid regular message, so those modes are not allowed. (This may be changed if this is added to the WSJT program in the future) Logging software from N1MM will have the ability to work on this contest. For those that are using paper and pencil or some other logging method that does not produce a Cabrillo file, we also have the WA7BNM Cabrillo log maker which will allow you to build a Cabrillo file. All entries over 10 contacts must submit an electronic Cabrillo log. We also have a sign-up form to allow stations to sign up for the counties which they will activate and what modes they will be using. We are going to try and get operators out in all counties and have all modes covered. Please use this form if you are going to be operating in Nevada. The Nevada QSO Party website is http://nvqso.com/ Complete rules are listed under the “Rules” tab and please read the FAQs for additional information. Information is subject to change on the website so be sure to check back regularly. Please visit this site often and pass the word onto your friends! We are looking forward to your participation in this contest! ==30== For further information on this news release, contact Jim Shepherd at W6US(a)SNARS.ORG Levi C. Maaia, K6LCM Director at Large | Co-Chair, Telecommunications Services Committee Santa Barbara Amateur Radio Club, Inc. a 501(c)(3) nonprofit public benefit corporation www.levi.maaia.com +1.805.604.5384

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Fwd: Goodearl trap 40/80 dipole specs
by David Hackleman 26 Aug '18

26 Aug '18

Oh wow, that is so cool, thanks Al!!! I had a feeling you might track this down. It is loaded with helpful detailed instructions. FB on QST references. Jack lives! Sent from my iPhone Begin forwarded message: > From: Alan Soenke <ajsoenke(a)aol.com> > Date: August 25, 2018 at 6:17:22 PM PDT > To: d.hackleman(a)verizon.net > Subject: Re: [Sbarc-list] Goodearl trap 40/80 dipole specs > > here is a copy of the sheet you requested. Note: upper left corner has ARRL QST references. This antenna was originally designed as a Novice HF band antenna in the 1960s era. > > > -----Original Message----- > From: David Hackleman via SBARC-list <sbarc-list(a)lists.netlojix.com> > To: SBARC-list <SBARC-list(a)lists.netlojix.com> > Sent: Sat, Aug 25, 2018 11:02 am > Subject: [Sbarc-list] Goodearl trap 40/80 dipole specs > > Hello all, Long ago, I bought the coils (traps?) that Jack Goodearl used to make for 40/80 meter dipoles and sell at SBARC meetings. I never happened to use them but stored them away all these years. Well now they might come in handy for a fellow ham with space limitations. But I misplaced Jack’s sheet of instructions telling where exactly to place them along the wires. Does anyone have this instruction sheet?! Thanks, Dave Hackleman K6VML Sent from my iPhone _______________________________________________ SBARC-list mailing list SBARC-list(a)lists.netlojix.com http://lists.netlojix.com/mailman/listinfo/sbarc-list > <AREC_Goodear_antennal.pdf>

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Goodearl trap 40/80 dipole specs
by David Hackleman 25 Aug '18

25 Aug '18

Hello all, Long ago, I bought the coils (traps?) that Jack Goodearl used to make for 40/80 meter dipoles and sell at SBARC meetings. I never happened to use them but stored them away all these years. Well now they might come in handy for a fellow ham with space limitations. But I misplaced Jack’s sheet of instructions telling where exactly to place them along the wires. Does anyone have this instruction sheet?! Thanks, Dave Hackleman K6VML Sent from my iPhone

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Re: [Sbarc-list] pipe-to-pipe clamp
by Ken Alker - KA6KEN 25 Aug '18

25 Aug '18

Thanks, Al! All good suggestions and I'm going to note them for the future. I ended up temporarily just putting the mast INSIDE the 3.5" OD pipe (it is 3" ID and the OD of my mast is 2.25") and it is working fine for now, but it spins in the wind (not good :-), and is a little crooked. I ended up finding the perfect clamp at Talley which Andrew (KG6END) at Santa Barbara Electronics Supply can order for me at 1/2 the cost that I'd have to pay direct to Talley. That said, I haven't ordered it yet, so if anyone has one they want to sell, I'm still looking. Ken --On Wednesday, August 22, 2018 8:16 PM -0400 Alan Soenke via SBARC-list <sbarc-list(a)lists.netlojix.com> wrote: > You can try back to back 'U' bolt clamps in a pinch. It'll take 4 > if one of the mast is free to prevent it from tipping to one side. > Fence company's have more appropriate clamps for$$. Might try Home > Depot or OSH. When all else fails use some good baling wire and a large > nail to form a figure 8. Do it 2 places., one shoulder high and one ankle > high. For temporary nylon rope will work. > > Al > > > Sent from AOL Mobile Mail > > On Tuesday, August 21, 2018, Ken Alker - KA6KEN via SBARC-list > <sbarc-list(a)lists.netlojix.com> wrote: > > I am trying to attach a 2-1/4" O.D. push-up mast to a 3-1/2" O.D. pipe > that > I have cemented into the ground (my old 9-foot "big ugly dish" mounting > pole). Does anyone have anything they want to get rid of or sell that > might > accomplish this? Old, rusted, and used is fine. > > Thanks! > Ken > KA6KEN > _______________________________________________ > SBARC-list mailing list > SBARC-list(a)lists.netlojix.com > http://lists.netlojix.com/mailman/listinfo/sbarc-list >

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Public Safety RFI
by Bill Talanian 24 Aug '18

24 Aug '18

<http://allthingsfirstnet.com/public-safety-advocate-radio-interference-in-t…>

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pipe-to-pipe clamp
by Ken Alker - KA6KEN 23 Aug '18

23 Aug '18

I am trying to attach a 2-1/4" O.D. push-up mast to a 3-1/2" O.D. pipe that I have cemented into the ground (my old 9-foot "big ugly dish" mounting pole). Does anyone have anything they want to get rid of or sell that might accomplish this? Old, rusted, and used is fine. Thanks! Ken KA6KEN

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WWV Petitions
by Bob Bascom 21 Aug '18

21 Aug '18

Petitions: <https://petitions.whitehouse.gov/petition/maintain-funding-nist-stations-ww…> <https://petitions.whitehouse.gov/petition/proposed-shutdown-nists-wwv-and-w…> <https://www.change.org/p/nist-save-wwv-and-wwvh-the-global-time-standards> >From: "bill" <K7WXW(a)qrpdx.org> >Date: Mon, 20 Aug 2018 08:40:06 -0700 > >The White House budget is a list of administration priorities, not a budget Budget items like the requested changes at NIST (which also include cancellation of measurement programs related to tracking climate change) will be addressed in Congress, which is responsible for actually producing the federal government's budget. To mount an effective response, people must contact their senators and representatives directly. Petitions are easy but, for the most part, not nearly as effective as an email or phone call to your congressional offices. 73 de bill

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