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ARRL Field Day 2018

ARRL-Field-Day-JUN2018It’s time to stop doing what you were doing and get ready for the ARRL Field Day – (Saturday – Sunday) June 23rd and 24th 2018.

This annual event is centered on putting HF QSO’s (short 10 second HF radio contacts) into a computer log file for a 24 hour period.  Day and Night.

Operators are encouraged to run the Radio’s off of Emergency Power Generators – to simulate Amateur Radio Operators – Operating during Emergency Environmental situations…(Hurricanes, Tornados, generic power/cell phone) outages and the like.  To learn more about the history of Field Day (Click Here).

To learn where you can join in (you don’t have to be a licensed Amateur Radio Operator) to join the weekend activity.  It’s an easy drive to the Field Day site for folks living in Aspen, Carbondale, Glenwood Springs and Rifle.  (Click Here)  Yeah, that’s Mt. Sopris in the (back right)

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The New Frontier – Digital Amateur Radio

by N0ECT

Today’s Digital Amateur Radio (DAR) – has almost nothing to do with HF

Arguably, DAR is the fastest growing segment of Amateur Radio Hobby today.

ALThe big Commercial Radio companies were first to enter that Digital Radio market – however Amateurs have been quick to catch up – and are now providing Digital Radio “cross-connections” between different proprietary Digital Radio systems and they’re running those online today.

Are you Ready to explore genuine Digital Radio for Amateurs?

Step 1 – Turn OFF your HF Rig

What you’ll need…is some new Radio vocabulary to hang with the younger Hams that are pushing the limits of what Digital Amateur Radio can do today.  Did you know that Amazon’s “Echo/Alexia” product is being integrated with DAR today?  Young Hams with well developed SW and Programming Skills are leading and testing those new innovations right now.  Who would have thought?

Step 2 –  Think of the Internet as your worldwide Repeater System.  The “band conditions” on this Repeater System are always open 7x24x365.  “BrandMeister” servers are something you’ll likely be using for day to day World Wide DAR communication.  The growth in BrandMeister DMR connections has been exponential over the last year.  The focus in this DAR community is testing, exploring, engineering and building new Radio Repeater/Hotspots and interconnections.  Adding endless, brief QSO’s in a log file is not what DAR is all about.

Step 3 – You don’t have to “break the bank” with your choice of a new Digital Radio – some models are under $100.00/Amazon.  You also might need a “HotSpot” you can build or buy for about $100.00  DMR (Digital Radios)BM are by far the most affordable compared to DSTAR (Icom’s Digital Radio) and C4FM (Yaesu’s System Fusion) Digital Radios – so we’ll stay focused on DMR for now.  “PileUps” don’t exist in the world of DMR.  If you click on the graphic to the right you can listen to the Digital Radio World of BrandMeister – just by using your computer, no need for a DMR Radio – just to listen – to perfectly clear Digital Radio Audio.

DMR (Digital Mobile Radio) is an “open” spec developed in Europe.  (side note) Motorola adopted it, added their own proprietary digital extensions – and market their Motorola Commercial Digital Radios as part of their “MotoTrbo” product line.

DMR for Amateur Radio can be used with or without a (example: Mountain Top) DMR Repeater.  There is no requirement to be connected to the Internet to have DMR Radio working for you.   DMR/Simplex (example: 146.520Mhz) works just fine.

Q.)  If I’m the only Ham in my geography with a DMR Radio – how do I use it to communicate with other Hams?

Answer:  You can use a DMR HotSpot that you can buy as a Kit or build one yourself for about $100.00.  Photo below shows a DMR Hotspot with a standard USB Battery PowerPak and a Radioddity GD-77  VHF/UHF DMR (Tier II) Radio.  Yes, the DMR HotSpot below uses a WiFi connection to the Internet to reach the BrandMeister Servers.  Below is using the WiFi my iPhone can provide for complete Portable/DMR operation anywhere in the world.DMR-Portable-4FEB2018

DMR Hand-held (HT) Radios (Tier II) can be had on Amazon for well under $100.00  They provide traditional analog FM (VHF & UHF) capabilities (just like your Baofeng) in addition to DMR.  Other Models of DMR HT’s include (TYT/MD380 and 390 – AnyTone AT-D86UV – Retevis RT82).  Interestingly, these new DMR HT’s are (SDR – SW Defined Radios) that can be easily upgraded by loading new (Firmware/Software) into the HT.  Bug fixes and in particular new DMR features are being released all the time.  Be aware that you won’t find much information on the ARRL web site – about this – the younger Hams are using Facebook, dedicated Facebook Groups and Vendor Web sites and Blogs to share their new information, capabilities and upgrades. (Click Here)

More on the HotSpot…As shown above the HostSpot uses a Raspberry Pi “ZERO” computer and a small “daughter card” that plugs on top of the Raspberry Pi “ZERO”.  The daughter card is the low power UHF Transceiver that the Radioddity uses to reach the DMR/BrandMeister Servers on the Internet – if you want to operate on the DMR World Wide community.

Setting up the HotSpot:  The MicroSD card that the Pi Zero uses as its hard drive…is powered by FREE software known as “Pi Star”.  The Pi Star SW (developed in the UK) is controlled by an easy to use “Web Browser Interface” that is simple to use for setup from a PC or Mac.  More information on DAR soon.  73s – N0ECTPS

SCARC – Christmas Party 2017

Special Thanks to Sue N0DBY and Bob K9MWM – for opening their home and hosting another outstanding SCARC Christmas/Holiday Party for local Hams!

Photogenic!…doesn’t even begin to describe this happy Mom and Dad couple!  Jeremy KB0HQO and his pretty wife Fanny.  Their two young kids moved too FAST for the party photographer!IMG_7675

The Most Interesting Ham in the World? –  He’s From “Jamaica Mon!”  Bill, N0MID knows a good holiday offshore brew (Red Stripe) – when it’s SCARC Party Time!  How many QSO’s do you have from Kingston Town, Mon?IMG_7666

The 3 Musketeers got the SCARC holiday memo about a Red Shirt or Sweater…

L-R  Ken KB0HP, Richard K4ULD and when he’s in Jolly old England G4ULD and Fred K0VK.  Friends who know Richard – also know he’s rarely stops smiling!IMG_7663

Super Ham Hostess Ms. Sue – N0DBY!IMG_7674

Brent – KD0WAK (left in photo) Jim AD0LIIMG_7672

L-R  Jim AD0LI and Dave KD0WQCIMG_7664

Discussion?  Is an all Digital non-HF QSO – Still a QSO?  Is it OK to store an Analog HF QSO in Digital form – using 1’s and 0’s only – inside an encrypted Logbook of the World file?

L-R   Phil N0KE and Clark K3NIIMG_7670

Gerry N6HUQ – shows he’s in the Holiday Mood!IMG_7671

Ashton KQ0C – (red shirt) and Mike (blue shirt) discussing the finer points of Genuine WiFi calling – with a smartphone!IMG_7662

Guys and Dolls – L-R  Bill N0MID, Betty KD0YDH Dennis AD0VU, and…(sorry, not sure – pretty and nice too!)IMG_7668

L-R  Kevin KE0PGE and “Allstar” Bryan N0THYIMG_7673

L-R  Glenn KE0MMS, Ms. Marcy and Kevin KE0PGEIMG_7665

Rocky Mountain Ham & Ski Country ARC

by Rocky Mountain Ham – RMHAM.org and KD0MA, K0JEG & N0ECT

3 New RMHAM Linked Sites – Installed in one day, including the updated Colorado Connection.

A crack team of 15 RMHAM team members pulled off another 3 site day interconnecting the RMHAM (front-range) network to Leadville and Vail. This push gets DMR into these areas that have not been covered with DMR until now. We (RMHAM) now cover I-70 nearly contiguously from Genoa through Avon. We installed two, new (digital) microwave hops from our Fairplay site to our Leadville and then over to Vail (Dowd Junction) with three dedicated teams. By noon on September 30, 2017, the DMR and Analog FM system were in place and ready to carry digitized voice traffic – simultaneously over the new Digital Mountain Top Microwave Network.https://i1.wp.com/www.rmham.org/wordpress/wp-content/uploads/2017/10/2017-09-30-Mosquito-Pass-77.jpg

Colorado Connection – Vail – Dowd Junction Repeater – FM Analog  147.345 (+) PL 88.5

DMR – Vail Dowd Junction Repeater – 445.07500 (-) Color Code 7, Time Slot 1 – connects you to RMHAM Front Range Talk Group 700

DMR – Vail Dowd Junction Repeater – 445.07500 (-) Color Code 7 Time Slot 2 – connects you to RMHAM Front Range Talk Group 720

We also added new digital linking for the Colorado Connection and upgraded both the Leadville and Vail (CC) repeaters to new digital hardware! The Colorado Connection still supports FM/Analog Radios, however the new Mountain Top Microwave Linking System – digitizes that FM Analog Voice traffic into TCP/IP – VoIP packets.  This new Digital Microwave Mountain Top Linking ELIMINATES the old Analog FM Link Radio System problems that has plagued SCARC Repeater Backbone for months!https://i0.wp.com/www.rmham.org/wordpress/wp-content/uploads/2017/10/2017-09-30-Mosquito-Pass-40.jpg

Folks from Ski Country ARC from the Vail area assisted the Vail RMHAM team in completing this task. Fairplay team of K0JSC, N2MED, K0GUR got the microwave in and peaked. Leadville team of W0VG, AC0KQ, AE5IT, N0DEV, K0IBM, K7AIH. Vail team was K2AD, WA1JHK, KI0KN, N7CTM with prework by W0KU. Ski Country folks that helped out KD0MA, K0JEG and N0ECT. They installed microwave, power, routers, and all assorted cabling along with doing lots of antenna rework to handle the new configuration.IMG_2436

ARRL Field Day 2017 – K0RV Style!

The QSO + Fun Factor exceeded last Years effort – if you ask N0ECT!  Some of our favorite Field Day Photos and captions from this (June 24-25) weekend’s 24 Hours of Operating HF using Emergency Power only.

ARRL-FIELD-DAY-2017-Chase-BrentIron Chicken Chef N0AFO…demonstrates to Debbie N0LDB the Art of Grilling Chicken – with his Eyes Closed!So-Easy-I-Can-Grill-Chicken-With-My-Eyes-ClosedK0RV’s most Experienced Drone Pilot – Eric K0JEG.  Armed with his 4K HD Drone Camera and GPS Drone Technology – Eric’s Drone located the MOST COMFORTABLE chair at Field Day and K0JEG and took full advantage after an exhausting day of QSO’s and Flying High!Drone-Master-K0JEG-Best-Seat-In-the-HouseK0RV’s t-Shirt Design Team Phil N0KE and Ms. Betty KD0YDH are busy working on next years Field Day 2018 t-Shirt.ARRL-FIELD-DAY-2017-N0KE-KD0YDHN0ECT is still insisting he found one of these Signs…On N0AFO’s Beer Cooler that Saturday Afternoon!Free-StuffBob KI0G Cutter ran the (GOTA – Get On The Air) Station this year.  Being a former Judge – KI0G must be use to handing out cruel and unusual punishment!  How So?Well…Bob ran the GOTA Station at QRP (5 Watts) – Yikes!  Bob is still trying to explain how to beat an HF Pile Up on Field Day using only 5 Watts…leveraging what looked like Kite String for an Antenna!  At QRP – N0ECT rechristened KI0G’s GOTA Station as the “Waiting for Godot” QSO Station!   Extreme QSO Patience paid off…Occasionally, the GOTA Station confirmed a few 40 meter QRP QSO’s!  Their GOTA Station Blew the Horn targeting their skeptics…for every completed QSO!Always-Running-On-Low-Lower-KI0G-QRP-ManWell if you don’t know what “Frequency Feast” looks like – you do NOW!Field-Day-Feist-K0RV-25JUN2017

Field Day 2017 – ARRL & SCARC

by  N0ECT

Setup for Field Day 2017 starts at 3PM, Friday, June 23rd at our Field Day QTH.  At 6PM Friday nite is the drawing for ARRL Field Day Souvenirs for those helping with Setup.image

Field Day officially starts at Noon (Mountain Daylight Time) on Saturday, June 24th and continues till Noon on Sunday, June 25th.  Sign up Times for operating on HF during the 24 hours of Field Day will be available – starting 3PM Friday.

For more information and a Map to our Field Day Site – (Missouri Heights near Carbondale, Colorado (Click Here)

For all ARRL Field Day Sites & Locations – just CLICK ON the Map below.image

Digital Radio & What’s New from Dayton

The Days of the Digital Radio “Tower of Babel” are coming to an end.

The different Digital Modes promoted by different Radio Vendors are starting to “Converge” via new Digital HUBS and Digital Servers.

Result?  DSTAR folks can talk to C4FM/Yaesu using their native vendor specific Radio, DMR Radios interoperate here too.  The ever popular Digital HT – the MD380 was selling for $75.00ea at Dayton.  Digital Mobile interoperability is improving too because of the availability of WiFi while Mobile due to today’s SmartPhones.

Below is a great summary – of what’s going on in the Digital Radio World – from Dayton last week.

http://www.k6jm.com/wp/dayton-2017-d-star-and-digital-voice/

 

 

Building My Raspberry Pi-3 Portable AllStar Node – for your Car or RV

by  N0AFO

A Portable Allstar Node – means never having to be near a Repeater to use it.  Allstar uses the Internet – to connect to a distant Allstar Node – that is connected to the Repeater System you’re trying to reach.  Portable Allstar means you use a WiFi Hotspot in your Car or RV that provides the WiFi connection for your Raspberry Pi 3 computer – that runs the (free) Allstar software.

I have wanted to build a portable (FM) Allstar node to take on the road with my RV forAllStar-Raspberry Pi-3 several years now. The effort started first with IRLP but never progressed to the finish line because IRLP has a need to do IP port forwarding (from the WiFi Hotspot) of several UDP ports to the IRLP interface board in order for it to function. In the 3G wireless (Hotspot) world that was not difficult to do since wireless providers (usually) handed out publicly routable IP addresses to each wireless 3G hotspot. You were then able to port forward from a Hotspot router that is the wireless hotspot.

Interface-Card

Those days are gone, todays wireless 4G networks no longer give subscriber’s devices publicly routable IP addresses. The only solution for operating portable IRLP on 4G wireless networks has been to use a VPN client service to forward the required ports. To do that requires a fair amount of effort setting up and maintaining a VPN client on the (likely – Raspberry Pi) computer running the IRLP software. Other hams have successfully done this but it requires a more in depth knowledge of Linux than I presently have. You also need a source for VPN services. (money $$) My efforts with portable IRLP stalled at this hurdle. Easier tasks caught my attention and I did not progress beyond setting up an IRLP node at my home. It has operated flawlessly, a tribute to the Linux operating system, for many years.

Thanks to the efforts my good friend Pete, N0ECT, I was recently prodded to reexamine the possibilities of a Portable Raspberry Pi 3 – AllStar Node. AllStar, has been around about as long IRLP but developed more slowly. In its original incarnations it was more (Linux) complex to setup than IRLP. Like IRLP it runs on computers running Linux along with a version of Asterik modified for amateur radio use. Much about AllStar has changed since my last look at this package. Today’s computers are smaller, more powerful, and cheaper. Memory is denser and also cheap. Handheld FM ham radios (SDR) can be purchased today for $13.00. One of the most popular implementations of AllStar today runs on a fast Raspberry Pi 3, using a micro SD card as its hard drive. The Pi 3 computer includes WiFi to connect to your portable Internet Hotspot. The setup process is mostly scripted for you using a Browser based GUI interface. Maintenance chores are all accomplished using the same Browser from your PC or Mac. You no longer have to keep a version of Linux For Dummies at your side as you configure your system. Little, if any, Linux interaction is required to get the system up and going. Compared to IRLP It’s easier to set up, cheaper to build, and the voice quality is superior. After gathering all the parts and pieces, we had AllStar up and going in no time.

During the process of setting up my home based Raspberry Pi AllStar node my thoughts returned to building a portable node. I wondered if I would face the same challenges that thwarted my attempts of making a portable node work under IRLP. The setup instructions for AllStar still made reference to setting up port forwarding from the router firewall/Hotspot, and that seemed like bad news. I searched the web to see if anyone had accomplished this feat yet in an AllStar environment. I did not find a lot, but then IMag-Pi-Case stumbled across a posting from a ham in Philadelphia, that gave some hope. He pointed out that while an Allstar node needs a port forwarded from your router, that port is only used to facilitate other hams connecting inbound to your node! Eureka! It is not required for you to initiate an outbound connection to another Allstar Node or Allstar SERVER/HUB! To me, that meant if you want to operate portable from your car or RV you can initiate Allstar connections to other nodes and hubs all day long without needing a VPN Client to forward your connection request. I called my friend Pete and we tested this point, shutting down port 4969 on his node. It worked! While I could no longer connect to Pete’s node he could add Outbond connections to his. The biggest connection problem with portable IRLP, does not exist with AllStar. My biggest impediment to operating from the RV is not a factor in AllStar. It’s G. O. N. E. Thank you AllStar.

Allstar is different from IRLP in another useful way. In the IRLP environment you can only connect to one node at a time. So if you are talking to an individual IRLP node no one else can join the conversation. You can connect to a special node called a reflector that does accept many simultaneous connections, but you can only have one connection at a time. In the Allstar environment a node can connect to multiple other nodes at once. And, (here is where it gets a bit confusing) those nodes can also be connected to multiple other nodes. That can quickly make for some pretty big networks. These are literally star networks connected to other star networks. The star,in AllStar.

So back to my RV node operation, If I, while I’m on the road, I maintain a connection to my home AllStar node, then I will also be connected to whatever nodes connected to my home. Since my home node has port 4969 forwarded to the Raspberry Pi, from my firewall, other nodes can connect to it and in turn, my mobile node will also be connected to them. Inbound connections to me when I’m mobile will not be a problem because of this feature. Callers will think they are connecting to my home node but, no matter, I’ll hear their call because I too am also connected my home node. AllStar call forwarding! Plus, if I choose, I can still connect to other nodes at the same time. In essence I can have all the benefits of a full featured mobile AllStar node without needing to do VPN port forwarding while I’m mobile.

Another nice Allstar feature is that I can manage my home node or, any node, using the proper node password from a Browser. This is accomplished using new browser tool, Supermon. Users can manage connections, adjust audio levels, even reboot the Raspberry pi if needed, all remotely from an iPhone or other internet connected device.

I’ll be talk’n to ya all from the road this summer, I’m a happy camper now! 73, N0AFO

Resources:

https://allstarlink.org/

https://hamvoip.org/

http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/

(16GB – Micro-USB – Click Here) Purchase at least two, one for operating the Raspberry Pi 3 and one for node backup. Be sure they are class 10 speed rated.

Except where otherwise noted all parts were sourced from Amazon.com

USB Radio Interface Card $50.00

Source: http://www.repeater-builder.com/products/usb-rim-lite.htm

You can make your own interface card ( instructions can be found at https://www.hamvoip.org/ )

I decided to spend the $50.00 for the repeater-builder package. It was a time saver, it is the most expensive item in my project.

If you want to roll your own radio sound card interface this is the device you need . The project involves disassembly of the package along with some precise soldering techniques on a surface mount board. This card is responsible for supplying the PPT, COS, Tx audio, and Rx audio to your radio.

My Node’s Parts and Pieces (Shopping List – Click Here)

https://www.modmypi.com/raspberry-pi/cases/modmypi-rpi-a-plus-b-plus-2-and-3-

US $7.40

This case ships from the UK and takes about 10 to 15 days to arrive. This is my favorite Raspberry Pi project case. It has some ventilation slots built in which I think is a good thing. Best of all you can purchase spacers to increase the height of the case to accommodate add on boards. I also recommend purchasing the SD card cover it will protect the SD card from falling out. If needed, two covers for the USB and HDMI ports will help keep dust out if you are using this in a dusty environment.

Using stacking spacers, I was able to stuff a Raspberry Pi based IRLP node into a single case, accommodating the Raspberry Pi, IRLP interface board, and audio sound card inside one small case. It’s worth waiting for. I have not found a US source for this item.

Finished Pi 3 Package

My finished Allstar node. Initially I plugged the USB radio interface card into one of the USB slots on the Pi board which required routing the USB connector to the outside of the case. I found that the plug was sub-ject to intermittent connections as it was bumped. That would not be optimal for my planned use as a portable AllStar node for my RV. The solution was to hardwire the USB cord to the Raspberry Pi board. This still allows for unplugging the cord from the radio USB interface card. I have not had any more connection issues since doing this modification. I placed some electrical tape over the external USB port that I hard wired to preclude inadvertently plugging another USB device into that port. In the top photo the Pi is running off of a battery designed to charge cellphones. It ran the node for three days off of this battery.

Light pipe feature of the Mag Pi case

USB Radio Interface

USB cable routed to USB port on case exterior.

12 Volt to 5 volt Power Supply

For Raspberry Pi

Portable operation

I found this 3 amp 12 volt dc to 5volt dc down converter with a micro fe-male usb connector to power the Raspberry Pi3 . This makes for a very small and neat package that can easily be tucked away out of. The power drain of the Raspberry Pi and the radio USB interface is under 1.5 amp.

Parts for the Mobile AllStar UHF Node Radio

This is a work in progress . I’m presently using a modified Motorola Maxtrac mobile radio as my home node AllStar radio. This radio was a conversion done by KE0TY , now a SK. Ted removed the final power transistor leaving the radio to use the driver transistor only. About the same power as the BF888s. This allows operating the radio at 100% duty cycle. That radio consumes more power and space than I want so I explored some alternatives. Initially I thought about converting a Baofeng UV-5R to be the Mo-bile node radio since I had one on hand. The parts density of the UV5R is high and things like the DTMF key pad and the display add to the complexity. I decided not to go down that route and reassembled the UV5R before I could break it. After some re-search I ordered a Baofeng BF-888s to be my new Allstar node radio in the RV.

This Radio is cheap, and not difficult to interface to the AllStar Pi . ( a link to the instructions is below ) It has 16 programmable channels. I programed them all to the same frequency so the radio will always be on the frequency that I want it to be on. The BF-888 radio (photo below) will be dedicated just to mobile AllStar. The low power drain of the BF-888s and the Raspberry Pi will allow it to be on 100% of the time. Node DTMF commands will be sent from the handheld or mobile radios that are transmitting to the BF-888s. Based on my experience from my home node the radio’s range should be about 6 miles when using an external 5/8 UHF antenna. If I just use the supplied rubber duck , it is a mile or so. BF-888

To keep the power supply side of the equation simple I purchased the BF-888s battery eliminator. It clips onto the back of the BF888s reducing 12 Volts to the 4 volts required to run the radio. That will be connected into my RIGrunner power buss in the RV. The RIGrunner supplies all my radio gear with DC power via power pole connectors each fused separately. It in turn is sup-plied power from a dedicated deep cycle marine battery that is separate from the rest of the RV batteries. This dedicated battery is automatically charged from any of four sources. The generator, the house solar panels, the RV’s house battery charger if the RV is plugged in to shore power, or the engine alternator when underway. Draining the dedicated radio battery does not affect the other RV batteries. It will charge from, but it can not drain the RV house or chassis batteries.

The BF888s modification details are found here: http://crompton.com/hamradio/baofeng888/

Allstar Radio is Working today on the Ski Country ARC Repeater System

by  N0ECT

At last Saturday’s SCARC monthly (March 2017) meeting the members were introduced to the Allstar Radio system and our new (working today) Allstar SERVER/HUB – 45479  (powerpoint presentation below)

In short – Any (world wide) Allstar Node (~2,000 Nodes) can connect to our 45479 and talk to any HAM connected to our SCARC Repeater Backbone using (example) a Baofeng HT that is also connected to our Repeater Backbone.  Allstar will send your Colorado (Audio) to anywhere in the world, to another Allstar Node that is connect to 45479.

How Allstar can assist operators of EME “Moon Bounce”

N0KE (Phil) has mentioned in the past that he has used “Email” to coordinate (time of day setup) for a “Moon Bounce” QSO with another EME operator – half way around the world…

Now N0KE can use a Radio… example: a 2meter (HT) to coordinate that EME Moon Bounce,  provided that other (example: Australian) EME operator has access to a local Allstar Node.  Recall there are ~2,000 active Nodes today, with more coming online each day.  They can now discuss via their respective Radio HTs – their scheduled time of QSO, Amplifier Power Levels, N-element Yagi Antennas…and much more – all needed for a successful EME QSO.  Now N0KE can spent more time using his Radios rather than his Computer (reading EMails) to setup and have a successful EME QSO!

Saturday’s Allstar Presentation includes a list of parts (Amazon) that HAMs can use to build their own Allstar Node.  It’s way less than $300.00 if you already own a Baofeng HT.

 

Note:  Click on the small icon    in the lower right below..it will change to a full screen of the PowerPoint Presentation!  Once you’re running full screen (at the bottom middle) of that page you can click through the sides using this right arrow.

Below is Eric’s K0JEG’s Video of last Saturday’s Meeting and Presentations.