AmateurRadio.com

Calling all Olivia-mode operators with experience using the Olivia digital mode in all areas of the world:

Please join our Facebook group at the following link. We are discussing important operational changes!

If you are on Facebook, and interested in the Olivia HF radioteletype chat mode, please join the community group at the following link: https://www.facebook.com/groups/olivia.hf/

If you want to join our discussion by way of the Olivia group on Groups.io, please feel free to spread the news, and also to subscribe to that group email reflector. We’ll start discussions, soon. Here’s the link: https://groups.io/g/Olivia

OLIVIA (Also, Olivia MFSK) is an amateur digital radioteletype mode designed by Pawel Jalocha, SP9VRC, starting in 2003, and in use by 2005. The Olivia-mode goal was to be effective even in poor propagation conditions on the high frequencies (shortwave).

OLIVIA can decode well under noise, propagational fading (QSB), interference (QRM), flutter caused by polar path propagation and even auroral conditions and sporadic-E. Olivia uses a 7-bit ASCII alphabet. There were a handful of amateur digital modes that were derived from Olivia, including RTTYM and PAX.

Outside of amateur radio two-way communication, this mode is utilized during the tests run by the VoA every weekend. See the VoA RadioGram website, VoARadiogram.net, for the schedule.

The first on-the-air tests were performed by two radio amateurs, Fred OH/DK4ZC and Les VK2DSG on the Europe-Australia path in the 20-meter amateur band. The tests proved that the protocol works well and can allow regular intercontinental radio contacts with as little as one watt RF power. Since 2005 Olivia has become a standard for digital data transfer under white noise, fading and multipath, flutter (polar path) and auroral conditions.

Voluntary channelization

Since Olivia signals can be decoded even when received signals are extremely weak, (signal to noise ratio of -14 dB), signals strong enough to be decoded are sometimes below the noise floor and therefore impossible to search for manually.

As a result, amateur radio operators have voluntarily decided upon channelization for this mode. This channelization allows even imperceptibly weak signals to be properly tuned for reception and decoding. By common convention amateur stations initiate contacts utilizing either the 16/500 or 32/1000 modes and then switch to other modes to continue the conversation. The following table lists the common center frequencies used in the amateur radio bands.

The traditional channels are now under heavy use by newer modes. Thus, this Olivia group is working on refiguring the strategy for continued use and channelization. Please join us for discussion.

https://www.facebook.com/groups/olivia.hf/

Thank you,

Tomas / NW7US

Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

In this episode extra episode, Martin M1MRB / W9ICQ and Martin Rothwell M0SGL visit the YOTA 2017 event at Gilwell Park to talk to the participants, organisers and volunteers at this year's event.

We would like to thank our monthly and annual donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

In this episode extra episode, Martin M1MRB / W9ICQ and Martin Rothwell M0SGL visit the YOTA 2017 event at Gilwell Park to talk to the participants, organisers and volunteers at this year's event.

We would like to thank our monthly and annual donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

AmateurLogic.TV Episode 107 is now available for download.

Peter operates the new FT8 Digital Mode from Joe Taylor. Tommy builds the DSO138 Scope Kit. George discusses the Raspberry Pi Zero W. Wayne build an Antenna Tripod.

1:24:08

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George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

The question I raised in my article about JT65’s success (“Who’s next?”) has already been answered: Joe Taylor. The same guy that brought us the JT mode of families has devised the mode FT-8, developed together with Steven Franke (K9AN). It’s basically turbo charged JT65, with a message length of only 12.64 seconds and transmission beginnings synced to the next 15 second interval. It’s not as sensitive as JT65, but that might change when a priori information is added at a later stage.

My version of WSJT-X was automatically updated to 1.8.0-rc1 on July 11th and just for fun I decided to check out if there was any FT-8 activity. There was: a couple of VKs and JAs. I was a bit surprised, because I had been monitoring FSQ which has been around for a while already and I couldn’t find any activity. FT-8 had only just been introduced so that was a good sign. It got even better when I noted some European stations popping up in the local evening. I tried my hand at making a QSO, but couldn’t get through, so my first ever FT-8 QSO was with HS7WMU from Thailand. The reason why I couldn’t get through became clear later: the delta loop for 6 meters was still hooked up to the rig! After switching to a proper antenna if became apparent that even my modest verticals didn’t have any problem in getting through to Europe. Even better, stations from the east coast of the US were also coming in fine early evening and I also had no problem working them. (Over here in Taiwan the eastern US is one of the more difficult regions of the world to work).

Over the course of the next few weeks I noticed a steady increase in the number of stations I could receive. The statistics page of pskreporter.info backs this up. As I write this the number of FT-8 spots over the last 2 hours outnumber the JT65 spots 2 to 1. JT9 has already been relegated to the margins, so it seems Amateur Radio’s new favourite mode has become FT-8.

I have always been critical of the JT modes, mainly because they reduce QSOs to a 599 exchange with no possibilities to engage in a more meaningful conversation. Plus, JT65 is boringly slow. So, how do I feel about FT-8? Well, it’s not slow at all. In fact, you don’t even have time to push the appropriate macro buttons on the screen, so let WSPR-X do all the work for you. Even answering a reply to your own CQ can be handled automatically, which frees your hands into doing something else (In my case practising guitar. I’m working on Lindsey Buckingham’s “Never Going Back Again“, but don’t expect any performance soon). Arm chair DXing but still no possibility to start a real conversation with the other party. Not great in my book.

Still, I’ve been playing with FT-8 a lot and it is kind of fun. I normally only log some four hundred QSOs a year and in the last two years that has been reduced to forty or less. Honestly, till July 14 I only had 22 QSOs in my log for 2017. Now I’m way over 240 of which 212 are FT-8 QSOs. July 8th was the highlight so far: SSN of 11 and the K index only 1, so pretty good ionospheric conditions. Within 4.5 hours I worked 50 stations from 19 DXCC entities, working from the east coast to the west coast of the US (I added four new states for my WAS), then into Europe. I hardly had any time to put out CQs, because the next station was already calling me before the previous QSO was finished. The pass band on the scope was filled to the brim, when one anonymous ham sent out the cry that became the title of this post: “What a Zoo!”

He may have found it a zoo, but I like zoos, a lot. All joking aside, the one thing that really attracts me to FT-8 is the fact that you can do real time ionospheric observations. WSPR was meant for this, but the number of WSPR stations is too small and signals are too infrequent to be very accurate in my opinion. By constantly monitoring the FT-8 pass band I already noted a couple of sudden ionospheric disturbances and even a complete black out. Sometimes it only takes minutes for conditions to change from favourable to abismal and as a self reliant ham FT-8 is then a nice monitoring tool to have.

So apart from Antenna Summer, this has also become FT-8 Summer. Until the end of August (summer break) I will be active from 05 to 15 UTC most days, calling CQ a lot. I’m on 20 meters only, so if you see me on your waterfall there give me a call.

Hans "Fong" van den Boogert, BX2ABT, is a regular contributor to AmateurRadio.com and writes from Taiwan. Contact him at [email protected].

I’m sure that all of you have heard about Amelia Earhart and how she wanted to become the first woman to fly solo around the world. On June 1, 1937, she and her navigator took off from an airport in Florida and attempted to do just that. She however didn’t make it, but she came close. Her plane disappeared somewhere in the Pacific ocean.

Eighty years later, Brian Lloyd, WB6RQN, decided that he would attempt to fly around the world solo following(for the most part) her historic flight. Thankfully, Brian made it home back here to Texas, however it wasn’t without it’s problems.

In this episode of the Everything Ham Radio Podcast, we talk with Brian about his trip We talk about all the highs and lows, about all the awesome people that helped him along the way and generally about his adventure.

Give this episode a listen, I had a great time talking with Brian and I hope that you enjoy listening in on our conversation. You can find the show notes for the episode as well as listen to it at:

http://www.everythinghamradio.com/podcast/81

Curtis Mohr, K5CLM, is the author/owner of Everything Ham Radio Blog and Youtube channel. Contact him at [email protected].

Mount Peck (W0C/SP-053) is a 12,208 foot summit near Monarch Pass, accessible via a 2.5 mile hike with ~900 feet of elevation gain. This is one of the most pleasant Summits On The Air (SOTA) peaks along the Continental Divide. For most of the route, you are hiking on the Continental Divide Trail (CDT), with outstanding views in all directions. It is always a treat to hike on the CDT, which is like walking on top of the world.

The hike starts at the parking lot at Monarch Pass. (I’ve adapted these directions from Walt W0CP’s notes on the SOTA website.) Take the marked trail that goes behind the building of the Monarch Crest Scenic Tram. Proceed on this trail (really a road at this point) until the CDT exits off to the right (follow it). This section of the CDT is a popular mountain bike trail, so you may encounter bikers on the route. In fact, dirt bikes are also allowed…we encountered a few of them, too.

Stay on the CDT until you see an old 4WD road heading off to the left. Leave the CDT at this point and follow the road uphill. When the road crests and before it starts to go back downhill, leave the road and hike off-trail towards the summit. This is the steepest section of the hike where you gain the most elevation. Don’t forget to stop and enjoy the view. (My spouse started singing songs from The Sound of Music at this point.)

Often hiking on old 4WD roads can seem just like that: hiking on a road and not very enjoyable. This route is not that way…it is actually quite pleasant as the “road” is not rocky or rutted and just seems like an extra-wide trail.

We had great weather on the summit and managed to work a number of stations on 2m fm (Yaesu FT-1D driving a 3-element Arrow yagi antenna). This is a hike that we want to repeat in the future.

Another SOTA summit, South Monarch Ridge (W0C/SP-058) is nearby and it is possible to do both of these summits in the same day.

73, Bob K0NR

The post SOTA Activation: Mount Peck (W0C/SP-053) appeared first on The KØNR Radio Site.

Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].