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The KE0VH Hamshack for December

December 18, 2019

December 2019

                                         Well MERRY CHRISTMAS

                                               YES, it’s HERE AGAIN!


After the Monday Night NET here recently I was listening to “America Link” on 449.625 and noticed a similar signal popping up 25Khz down on the spectrum screen on my FT-991A.  Tuned down and saw this:

Hmmm, I thought must be another FUSION repeater also tuned into America Link.  SO, I turned down and sure enough, saw that the NØPUF repeater was there.  So, I looked up the call on, and sent an email to the address listed there and got a response from Dan NØPUF listing Tom KD4DT as the contact for more information. I soon then heard from Tom with this email note:

“This is Tom, KD4DT, glad you have found us.  The 449.600 is a repeater that is located on Warren mountain SW of town..  About six weeks ago I replaced our GE Master2 repeater with a DR-1X. Just this week I got the Node set up here at my house using an FTM-100 with the SCU-40 cable.  No HRI-200 yet. Had planned on reaching out to you once I got everything up and running but you beat me to it. Would love to talk to you about being part of the Sky Hub Network”.

That being said Tom and I of course communicated and now the 449.600 FUSION Wires-X repeater is now connected to the SkyHubLink system while just like 449.625 is steerable to other Wires-X rooms defaulting back to SkyHubLink.  This is very exciting since we were really lacking coverage in the SW corridor of the Metro area with the other repeaters being shadowed tremendously along what we refer to as the “hogback”.  The “hogback” is a very sharp ridge that runs N/S along the C-470 highway on the W and SW side of the Metro Area.  The repeater is a Yaesu DR-1 with 50 watts output atop Warren Mountain on the southwest side of town.  See for the details on the system.


The Warren Mountain 449.600/146.88 site


Pictures courtesy Tom KD4DT

Try the repeater out and especially if you are in the coverage area south and southwest of town.  It covers really well in the shadows of 448.350 & 449.450.

Tom KD4KDT at the Lookout Mountain SkyHubLink site

Monitoring ADSB tracking airplanes in the hamshack is fun and interesting to see the amount of traffic out of KDIA (Denver International).  Using the RTL-SDR USB dongle and a homebrew 1090 MHz co-linear antenna nets great receive coverage, and, on the Saturday, I took these pictures there was SO MUCH air traffic!  DIA is one of the busiest airports in the country, and today was no exception!

You can see the aircraft lining up in traffic patterns for takeoff and landings.  Plus, you see little curvy tracks of small general aviation aircraft flying around the city.  You can do this too with a $20 RTL-SDR USB dongle and easy to make 1090 MHz antenna.  Pretty amazing what you can see with these easy and inexpensive receiving systems.

Here is a picture of the antenna temp mounted next to my NWS receive antenna.  The coaxial co-linear antenna is housed in PVC piping.   It is built in this fashion:


I get great reception as you can see in the map above with this antenna, look at this site for a lot of great idea’s on how to build one.

It had been my intention for quite some time to change out the mount on my work truck (Tacoma) from a mag mount to a permanent on the roof mount to improve the reception and transmission characteristics plus to be more stable for the big Diamond SG7900 Supergainer antenna.  This antenna has been a great performer but doesn’t do well without being anchored very securely.  It either takes a good static mount or a huge magnet mount.  It really doesn’t do well though at highway speeds without a Tri-magnet setup like WØSKY has.  I decided to buy a Breedlove Antenna Mount after hearing about them from Matt KEØLNU, who had installed one in his vehicle.  See & my son Alexander,  who works for a company that installs custom equipment for police and official vehicles came over and professionally installed the mount for me.  He knew how to remove the headliner properly then setup and seal the antenna mount.  With our Colorado weather he really knew how to do the job efficiently and quickly.

Alex removing the headliner in the Tacoma

The inside of the room with the mount connected to the coax

The mount sealed and on top of the truck

The mounts come in different diameters as you can see on their website.  They make all kinds of mounts with different connectors for just about any antenna and setup you can imagine.  I am really looking forward to how well this setup works, and so far, it is

really performing well, both in coverage and stability.

The final installation of the mount and Diamond antenna. 

Here is yet another system that is working towards getting on the SkyHubLink system. 

NØSTY Andy & KEØHFK Corey in Akron Colorado have set up this repeater for part of north eastern Colorado and are working on frequency co-ordination.  More will follow on this one in 2020.  AND we are working on other repeater connections in Colorado and SE Wyoming currently.  Its really exciting to see how the system is growing and the participation from other systems is furthering towards the communication needs of the region!

OK now this is cool!  This is the Bakerville APRS digipeater solar powered at 13,000 feet on a mountain near Grays and Torres Peaks in Colorado.  This APRS Digi covers the front range and along I-70 from 100 miles east of Denver to way up in the mountains, and as you can see in the above picture can only be accessed well in summer, although obviously someone took this picture when the snow wasn’t that bad.  See the link:!mt=roadmap&z=11&call=a%2FBVILLE&timerange=3600&tail=3600

To see the real time information.  Skyler and I want to hike up to this sometime near Georgetown CO.  There is a road that goes nearly up to it as I understand it but will have to search before making a trip like that!

So while on a work away mission I ran the SBE Chapter 73’ of the Air SKYHUBLINK NET from my hotel room using the cell phone hotspot to connect to the internet, and the Raspberry PIØ radio hotspot and the FT-2DR handheld while monitoring the SkyHub ( on the laptop and using TeamViewer on the iPad to monitor Fusion connections.  The NET went really well even though I had a drop or two in audio.  And it really showed the versatility and easy connection made with this system from a remote location.  We are also starting to get folks checking into the NET with Hotspots using both DMR and Fusion.  The system now has a D-STAR connection via the XRF031C DSTAR BRIDGE.  PLUS, for those of you who still can and want to use IRLP, The DENVER REFLECTOR # 9870 is online into the SkyHubLink system.  Skyler has worked hard getting the system on all modes in the last month.  Now, analog AllStar, Fusion, DMR, P-25, and IRLP are all available.  See the list of normally connected repeaters at

NET CONTROL OP running the NET from Sterling CO

And then back home in Denver listening to aircraft talking to KDEN (Denver International Airport) on the Yaesu FT-991A.  Very versatile and fun radio with many features to enjoy!  My favorite rig of all time for sure!

One evening while watching one of the Denver TV stations during a snowstorm in Denver recently I spotted this.  The news/weather vehicle sported a “Flux Capacitor” behind the reporter.  Really very visible in the video, and you could tell they framed the shot to make sure it showed.  Pretty clever I thought!

And thanks to my contractors and ALL HAM CREW for the help in getting up the brand new dish at one of the sites in NE CO!  Yours truly KEØVH, NØSTY, KEØHFK, and WØSKY!

AND, Say HELLO TO Bernie N3ZF, operating Yaesu Fusion on Wires-X from his FT-991A in Wheat Ridge CO!  He has worked nearly 100 countries via Wires-X and the America Link room on the 449.625 Fusion repeater on Lookout Mountain above Golden Colorado west of Denver.

Check this out!  A 3D printed case for the Nano VNA antenna analyzers that are really

making a hit on the amateur radio market.  You can get one of these for $35 to $100 on Amazon and other vendors.  Next month I will try to do a small review on these as I own one myself.  It really works well.  Robert KC8GPD has the really cool set that includes a shielded case, calibration kit and other cables.  Check them out at:

and the 3D printed cases at:

Thanks to my good buddy Mark NØXRX for turning me on the case webpages.


Are you doing digital modes on HF where accurate time is very important? Here are two time sync programs that a lot of hams use:

I wonder if we can’t get budget for this next year!  Thanks W9BNO!


SEE YOU NEXT YEAR! Here comes 2020!




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SBE VHF/UHF Chapter 73’ of the Air SKYHUBLINK HAMnet

The SBE Chapter 73 of the Air SKYHUBLINK Hamnet is every Monday at 9 p.m. ET (6 p.m. PT) worldwide via Echolink KG0SKY-L, node 985839 (available via computer and radio), Allstar node 46079, DMR Talkgroup 310847, AND try it with your hotspot on YSFtoDMR then TalkGroup 310847.  The SBE UHF/VHF Hamnet is based in Denver on 449.450, pl 103.5, KDØSSP-RPT 448.350, Fusion/Wires-X, 449.600 Fusion and the 449.625 Fusion repeater, linked to WiresX room “DenverSkyhubLink” node 46361

You can listen on the LIVE STREAM thru Broadcastify at:


We hope you’ll join us. 

See the latest edition of “The KE0VH Hamshack” for more information at



The Society of Broadcast Engineers

9102 North Meridian St, Suite 150
Indianapolis, IN 46260
317-846-9000 ■ Fax 317-846-9120






The KE0VH Hamshack for November

November 9, 2019

November 2019

Starting out this month I want to let you know about the new SkyhubLink website at:  You can get all the information now about the linking system, real time monitors and control, net schedules and more including interactive coverage maps of the main repeaters.  Thanks to Skyler for setting it up and getting it active.  Look for more additions and editing coming up.  Check it often and pass it around!

Many of us are using hotspots to fill in for when we are out of communication with repeaters with our portable and mobile radio’s.  One of the functions of the Pi-Star dashboard screen shows a bit error rate display.  This is where a lot of folks have a difficult time tuning the hotspot especially with a DMR handheld.  I haven’t seen it so much be out of tolerance with the Fusion radios.  The pictures below show the dashboard in transmit and then the bit error rate after you let go of the PTT.

After I transmitted above using my C4FM Fusion FT 3027 radio, I see my bit error rate in green below.

A BER of .5%!  That’s GREAT.  When it starts to be >1% the hotspot will have trouble receiving the transmission from your radio.  A VERY EASY tuning procedure can be found at this website:

K9NPX does a great job showing how to do this procedure on your Pi-Star software with your hotspot.  This always seems to be one of the more difficult area’s of operating a hotspot that people have difficulties with.  When I was starting I was really glad when some of these descriptions became available via the amateur digital community.  Of course, someone figured it out.  So I hope this information will be helpful!

One other note on the SkyHubLink system, we have thru the help and equipment provided by the DWARC now have a local server computer that Skyler is configuring for deployment at the 449.625 KEØVH Repeater site. This is a totally new system with the “HBLink” protocol. (see for more information and description.) This will allows connections for DMR bridging without having to be dependant on Brandmeister links.  AU Wireless of Golden is providing our internet fiber connection and Mark NØXRX and Scott KDØSIY from DWARC have of course provided the Fusion repeater there.  The node radio is my FTM-100 DR fusion mobile that links the repeater to the HRI-200 and the network providing links to the Fusion Wires-X network.  I wanted to thank everyone for the help, loaning and/or donations made to the SkyHubLink system, and invite any and all interested amateurs to use the system.  There are some general operating guidelines though we ask that you follow.  This will include ALL repeaters linked to the system, including 449.450 analog.  I wanted to publish these here in the newsletter as well on our webpage so they could be seen as well.  It is very important in today’s digital communications “age” that we modify our operating practices just a bit so that everyone can join in and have FUN, which is what it is all about anyway!


We ask that as you are using the system on one of the associated repeaters that due to digital linking, (see whats linked normally at: and in real time at: please leave spaces between transmissions to allow someone on another mode repeater to be able to break in.  Ask frequently if there is anyone else who would like to break in or join the conversation.  Being too tight with the PTT can exclude someone trying to get in from another mode.  Don’t be quick on the trigger as it were or others may not be able to join in.  While we encourage rag chews on the system, please observe this operating practice to allow others to join in or in case of any urgent or emergency traffic.  Thank you.

ALSO, it is very important that you do not “KERCHUNK” the repeaters on the system.  This causes issues with the BRANDMEISTER DMR links and will lock out the DMR system which is bridged into the AllStar system.  Please DO a full call and ask for a radio check.  The DMR and Fusion repeaters have virtually no squelch tail to hear.  Thank you for your attention to this matter.  It’s good amateur operating practice and very helpful!

By the way, on the 449.625 KEØVH Lookout Mountain Fusion repeater above Golden most Saturday nights you can hear the The International Wires X Fusion NET in Room —America-Link- (21080)*** reminder
When: Saturday, 09:00 PM to 12:00 AM
(GMT-05:00) Eastern Time (US & Canada)  Either myself or Bernie N3ZF will link up “625” if it isn’t already connected.  This “Wires-X “Room” has many operators from all over the world on frequently.  If you are in range of the repeater you can use it to make contacts all over the world and have a lot of fun doing so.  ALSO, “625” is our “play” around with Fusion repeater able to access any Wires-X room you can find, so get on and have fun if you can get into it!  See the America Link facebook page at:


Back in the early 90’s I had the great honor and opportunity to be able to be in contact with Joe WB2JKJ and his “crew” of kids a the NYC PS 22 amateur radio club.  Joe has now for 39 years been using amateur radio in the classroom to bring “Education thru Communication” to inner city school kids.  I had a great time talking to his kids and Joe about different happenings of the day and what I was doing as a radio DJ (the kids loved that!) and in my ham radio hobby.  This was such a great way to reach out to kids and help teach them science and the radio art, and today it is still going strong!  They are a 501 c3 charity and could always use donations of radio’s, and can turn any excess radio’s or related gear into a tax credit for you .  GREAT JOB JOE AND KIDS!  Check out their website at!


                               P.O. BOX 1052                                                         

NEW YORK, NY 10002

Bringing Communications to Education Since 1980

So I dug back to the August 2018 edition of “The Hamshack” and wanted to put this information in again to the ariticle.  Another way to connect into the AllStar system is thru your cell phone! It is a portal that will connect into whatever AllStar node/repeater you want to dial into. Just think of it as a remote audio link to your radio, repeater, or connection into the AllStar system. I have used this thru my motorcycle helmet blue tooth communicator into my iPhone to connect into the local Denver repeaters thru  the Skyhub. Jeremy, N5JER showed me how to set up an automated dialer contact in my phone to one button dial like a regular phone number. When you dial into the phone portal you must tell it what node you wish to connect to, your personal PIN number (given to you when you register with AllStar) and whether or not you want to use VOX or a command to “PTT”. You can program this into your cell phone contacts.

My cellphone dialed into the AllStar SkyHub (Node 46079). You can see part of the automated dialing process, (my pin blocked out) easily done on a cell phone. Once again, just think of it as a “long mic cord” to a radio system!  To use the phone portal, you must register with AllStar and have a PIN number.  You don’t have to setup a node or do anything other than register if you want. Then even where there is no coverage by radio, repeater, or AllStar repeater you can get into whatever node you wish. I can help you with the script when you get registered with AllStar at   This makes operating into whatever AllStar link node you want simple and easy.  Plus I would recommend this over EchoLink for ease of use.  You don’t have to have a laptop or computer available.  VERY COOL SYSTEM!  When I was on my 3006 mile journey this past summer on the motorcycle I used this linkup to keep in touch back home and to talk to Kenny K4KR as I was coming into Chattanooga Tennessee.  Again if you need help setting this up for your phone, this is the script to enter into your dialer:

1 (763) 230-0000,,,,,,,46079#,,1,,,1234567890,,1

The phone number, commas are pauses, the Skyhub Node Number, more pause, 1 for node access, pause, your ten digit Pin number, pause then another 1 for VOX operation.  You will edit in your pin number in place of 1 thru 0.  Call me if you need help!

BTW, the 2 architects of the SkyHubLink System!

Jeremy WØJRL, and Skyler WØSKY seen here with the 900 Mhz repeater and the Fusion Wires-X 449.625 repeater and system in the Lookout Mountain Rack and the repeaters yagi antenna.



And say hello to Clark MM7CEH from Bathgate W. Lothian Scottland!  Clark is an almost daily regular on the SkyHub Link system.  He’s a great guy and lots of fun to chat with.  Listen for Clark and say hello!

And here is Paul MM6ZHC and Clark MM7CEH at the shack of the mid-Lanark Amateur Radio Society meeting near his home in Scotland.  Hey Clark, get Paul and more friends to check in with us on the SkyHubLink system!

MORE PROJECTS.  The KEØVH Office node utilizing an empty Linksys box as a case for a Raspberry Pi3 and MMDVM modem board running the Pi-Star software.  The shiny box in the middle is a small Tekk data radio on 442.700 Mhz.  So if you talk to me while I am in Lakewood, this is the setup being used to link into the SkyHubLink system.

Another project!  A duplex MMDVM Modem board awaiting another RPi-3.  This will be a possible linking radio to the YSF Reflector on the SkyHubLink.  Stand by for more on this!

And the latest addition to the Hamshack “toolbox”!

This is the NanoVna Network Analyzer for HF VHF UHV UV VNA for 50Khz to 900Mhz measuring S-Parameter, Voltage, SWR, Phase delay, and Smith Chart functions.  $60 on Amazon! 

As of this writing I just ordered it after reading reviews and seeing that there are many YouTube videos on it already.  Looks like fun to try out, and I will let you know in the December “Hamshack” what I think!  Free software too for interfacing.  Will let you know!


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The SBE Chapter 73 of the air DENVERSKYHUMLINK Hamnet is every Monday at 9 p.m. ET (6 p.m. PT) worldwide via Echolink KG0SKY-L, node 985839 (available via computer and radio), Allstar node 46079, DMR Talkgroup 310847, AND try it with your hotspot on YSFtoDMR then TalkGroup 310847.  The SBE UHF/VHF Hamnet is based in Denver on 449.450, pl 103.5, KDØSSP-RPT 448.350, Fusion/Wires-X and the 449.625 Fusion repeater, linked to WiresX room “DenverSkyhubLink” node 46361

You can listen on the LIVE STREAM thru Broadcastify at:


We hope you’ll join us. 

See the latest edition of “The KE0VH Hamshack” for more information at



The Society of Broadcast Engineers

9102 North Meridian St, Suite 150
Indianapolis, IN 46260
317-846-9000 ■ Fax 317-846-9120






The KE0VH Hamshack for May

June 5, 2019

May 2019

Welcome to almost SUMMER!

As of the beginning to write this article we get a couple of days of warmer weather and then 3 or 4 days of wet cold and some snow.  Cannot wait for summer to come and STAY!  PLEASE!


We have been experimenting with several ways to link into the Skyhub AllStar/DMR/Fusion system we have operating here out of the Denver area.  I put together a MMDVM audio board along with a RPI3, and the radio was a digital data TEKK Model KS-960.  I have had this radio in a junk box for years with no real use for it until now and cannot remember where it came from.  So, it made a great experiment! It will run off 12 volts thru its DB9 connector with the inputs and outputs to and from the Pi3 running Pi-Star software.  Much better ops and easier than last months experiment with the Motorola GM-300. The system works very well, but the main problem in this case is the radio is crystal frequency controlled, and the crystals in the radio are reverse of a repeater pair here in Denver.  However, if you can find the crystals made anymore it would be relatively easy to change the frequency ops.  I am having fun learning and working with this system and how it all interconnects.  Plus, it allows different modes of and portable operation to stay in touch no matter how or where you go!

The MMDVM board, Raspberry Pi3 and TEKK KS-960 data radio

And with that, here is the almost all FUSION Hamshack article this time around!

And I would like to introduce you to the latest edition to the KEØVH fleet of radios!  The Yaesu FT-3207 UHF only mobile joins the handheld FT-70D and the FTM-100 used for the Fusion WiresX link from my home as seen in the March 2019 article   ( )

and the mobile FTM-400 XDR rig in the truck.  This is a 50 watt C4FM/Analog Yaesu mobile that was on sale for only $149 at Ham Radio Outlet.  So, since I wanted a good radio to take over for the FTM-100

doing duty as the WiresX link for my office/backup/travel mobile rig, I found out about this one and had to try to pick one up.  Its operation is the same as the dual band FT-7250 that my friend and across street neighbor Bernie N3ZF has, and the FT-70D handheld that we both have now.  These radios operate on both analog and Yaesu’s CF4M System Fusion digital and WiresX internet connectivity for worldwide linking of communications.  It seems that HRO and other ham radio retailers are having frequent sales on these radios.  They are selling like hotcakes and HRO is having trouble keeping them in stock.  According to Eric KCØWOT at HRO Denver, the mobile FTM-400 is backordered for a month or so now.  Eric says to get on the phone NOW and order as this sale price is the lowest he has seen and probably will ever be.  It is in effect as a “Hamvention Special” until May 31.  I am glad I got mine last November before the rush.  Eric also said the monoband 3207DR (UHF only) and 3200DR (2 meters only) are in stock a little bit more.  Yaesu really hit a home run with these radio’s as popularity has REALLY INCREASED and demand is VERY high.  HRO Denver as of this writing has 50 of the FT-70D handheld so if you are thinking about it now is the time!  In my opinion, I really like the ease of use of the Yaesu radio’s as you can program them easily from the front panel (ADMS programming software is available on the Yaesu website and was free for the FT-70D handheld) without having to use a DMR codeplug, plus the digital audio to me anyway is more robust and sounds less “digital” than the DMR systems.  Connecting the radios to the different Fusion “Rooms” (as compared to DMR “Talkgroups”) is also easy from the front panel.  All in all I am really sold on the Yaesu radios, can you tell?  😊

The Yaesu FT-3207DR and Power Supply

Another cool experiment this month was the sending of messages via APRS that Skyler KGØSKY wanted to try.  Using his RPi3 APRS rig (that he homebrewed by the way) and his cell phone to SSH into his APRS mobile system, he and I were able to send messages back and forth to and from my FTM-400.  APRS was originally designed not just to transmit and display location beacons, but to be able to message back and forth too.  Another reason to contemplate a ‘400 as your next mobile rig.  True dual band/mode capabilities at the same time.  I use one side of mine to beacon my location via APRS, (!mt=roadmap&z=11&call=a%2FKE0VH-2&timerange=3600&tail=3600) and the other to communicate voice.  But you can also transmit data (with the camera microphone) and messaging via APRS.

Skyler KGØSKY sending an APRS message thru his mobile/cell system

And his message coming thru to the FTM-400

And me sending back to him thru the FTM-400

And him receiving my message back!  SO COOL!

As you may have seen in my previous emails via the SBE Monday Night Net announcements, soon we will have the 449.625 repeater on Lookout Mountain again as it is having to move from its current site (it is dark at this writing, but hopefully will be back in operation soon) to the site above the Clear Channel complex and below Buffalo Bills grave & museum above Golden CO.  When it is back on the air it will be doing double duty for both analog as always, plus now it will be on Fusion digital too.  The Denver Water Amateur radio club is upgrading its current Fusion repeater seen in last months Hamshack article to the latest greatest DR-2X system.  The current DR-1X will be assigned over to me for deployment on Lookout Mountain, will be WiresX capable, act as a backup in emergencies for DWARC, and will of course resume its duties as an analog machine that has served for many many years in the Denver area.  Stand by for an update next month.

My FTM-400 monitoring the DWARC KDØSSP Fusion repeater in WiresX mode on “SBENETCOM”

Hey!  A Trifecta of Engineer/Ham Vehicles! KC8GPD, KGØSKY, and KEØVH mobile antenna farms.

KC8GPD wins!

So here is what a handie-talkie antenna looks like when the cover comes off due to glue failure.

Fortunately, some super glue and slipping it back on fixed this issue.  Never seen this one before!


By the way, Amateur Radio Newsline reported a week or so ago that Special Event station K2M will be operating beginning July 16th, the anniversary of the launch of Apollo 11 thru the 24th.  The special event will celebrate the flight and lunar landing.  A special certificate will be available.  And they are looking for any hams who had anything to do with the building of the Grumman company Lunar Module and any information on what and how they may have participated in the building of the LM.  IF you know of anyone or could help in any way you can contact  Look for more information on the ARRL website.  I am sure going to try to work these guys for sure.

Apollo 11 “The Eagle” Wish I could have “worked” these guys! 😊

So in the February 2019 edition of the Hamshack article (  I wrote about the rig shown in the movie about the Italians who in 1954 were the first to climb K2, second highest mountain on Earth and more dangerous than Everest.  back in 1954.  It was shown at K2 base camp being used to communicate with the team on the mountain.  I asked if anyone recognized it in anyway.

Well Shane KØSDT found information on it and sent it to me.  Great Job DUDE!


If you are interested in seeing and reading more check this out:


AND FINALLY, nothing to do with Fusion or Ham Radio in general, scroll down to the next page to see my favorite picture from this month with warm skies in Denver and my other favorite pastime!


 70+ degree day in Colorado, downtown Denver in the distance on Lookout Mountain above Golden CO!

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SBE VHF/UHF Chapter 73 of the Air HAMnet



The SBE Chapter 73 of the air UHF/VHF Hamnet is today (Monday) at 9 p.m. ET (6 p.m. PT) worldwide via Echolink KG0SKY-L, node 985839 (available via computer and radio), Allstar node 46079, DMR Talkgroup 310847, AND try it with your hotspot.  The SBE UHF/VHF Hamnet is based in Denver on 449.450, pl 103.5, and the 448.350 Fusion repeater, linked to WiresX room “SBENETCOM” node 46361

And Soon BACK: WØKU 449.625, Fusion/Analog pl 141.3


You can listen on the LIVE STREAM thru Broadcastify at:


We hope you’ll join us. 

See the latest edition of “The KE0VH Hamshack” for more information at



The Society of Broadcast Engineers

9102 North Meridian St, Suite 150
Indianapolis, IN 46260
317-846-9000 ■ Fax 317-846-9120



 73’ from the “Shack”




The KE0VH Hamshack for April 2019

April 27, 2019

April 2019     

I dedicate this edition of the Hamshack to Barry Thomas, our good friend and engineer supreme who we lost last year to cancer here in Denver.

A memorial fund has been set up in Barry’s memory, accessible here –


This will help his children’s mother take care of the kids needs as he wasn’t able to obtain life insurance because of his condition.  We will miss Barry tremendously.  You can see Barry’s obituary here at this site:


Last month I wrote also wrote about the GOES satellite going away and my buddy Lee, NØVRD in Denver conducted some experiments and says:

“Speaking of the GOES birds, I took down the 2m/440 whip in order to put up a 137 quadrafiliar helix; it’s basically a 2l nested loop with a 90′ twist for polarization, and just recorded the attached pictures  from NOAA -19”.  Lee did some very fine work in getting this to work and the pictures as seen below are really awesome.

From friend K-LOVE engineer Scott, NØBST:

“Saw an ingenious little device today.  It’s a sniffer to find cabinet radiation in cases of suspected LTE interference.  Take an empty can, about the size of a short sweet potato can and install an N connector on the end with a little 50 ohm resistor soldered across it.  Hook it up to your spectrum analyzer and point it at the cracks in your transmitter and you’ll find where the radiation (if any) is leaking out.  The guy who showed it to me had to put a bunch of conductive tape on his Nautel transmitter up in Duluth MN.  He got the design from a consulting firm in MI.  The idea is the small can keeps the resonance well above the FM band.”

Wish we had a picture of the device.  Will have to work on that for a future issue!

One of our repeaters here in Denver that I mentioned before is the Denver Water Amateur Radio Club 448.350 repeater located on the water treatment property in Lakewood CO.  Mark NØXRX contacted me about the repeater after hearing that the Monday Night Net was going to try to set up a Fusion repeater and offered to allow us to be on that repeater.  To that end I set up a WiresX Fusion node with my FTM-100 and WiresX box and the “SBENETCOM” Fusion room for the NET and to be able to access the WiresX digital network.  I actually really like it better than DMR because is is easier to access networks from the front panel of the Fusion radios.  Yaesu makes quite a lineup of radios for analog/digital operations and its repeaters are capable of automatic mode switching between analog and digital modes.  The radios are capable of that as well.

This is the KDØSSP 448.350 Fusion/Analog Repeater owned by the Denver Water Amateur Radio Club (  in Lakewood.  It operates both analog and digital modes based on Yaesu’s AMS (Automatic Mode Select) system that will repeat whatever signal it hears analog or digital.  This is the repeater that my WiresX node I am operating works thru to tie into the Yaesu WiresX Network.  We operate it primarily on the “SBENETCOM Fusion Room 46361.  This is the first generation repeater that will be replaced soon with the latest model.  I will be reporting on that soon.  This repeater is located just a couple of air miles from me at one of the water treatment plants for the city of Lakewood.  This is one of the nicest and well setup sites I have ever visited.  They did a first class job in building this site as seen in the pictures below.  I am going to be helping the folks at DWARC by looking after the repeater and WiresX operations here soon.  The repeater and SBENETCOM is connected into the KGØSKY Skyhub system and thru DMR Talkgroup 310847 during most days and for the Monday night SBE Chapter 73’ of the Air Hamnet.  The fun thing about the node is that you can command it from your radio to go to other rooms in the Fusion network.  America Link, Colorado Link, the MinWis (Minnesota/Wisconsin) and TexasNexus and others are very popular and feature a lot of traffic to different parts of the world too.  I had a fun QSO with a ham in Japan one night with my mobile Fusion rig.  My across the street neighbor Bernie N3ZF has had a great time using the Fusion node and repeater making contacts literally all over the world.  And at todays time of low sunspot activity on the HF bands this mode is really gathering many new hams and old timers to keep in touch and make new friends, of course the essence of ham radio.

The DWARC 448.350 Repeater site & antenna at the very top of the 150 ft tower

Mark NØXRX of DWARC with the 448.350 Fusion repeater

And DWARC also operates a Fusion repeater on 2 meters here in the Lakewood CO area.  Its on 147.210 and will detect analog or digital as well, analog with a 100.0 hz tone.


Another project that Skyler KGØSKY and I have been working on is the use of the Raspberry Pi3 computer and the MMDVM audio interface board to make a hotspot for DMR, Fusion, P25 and other modes with the use of a Motorola GM 300 radio as the node radio.  So, far we haven’t been very successful although there are many internet sources that show successful implementation of the system.  So far though no go for us as we have wired and tuned the system for proper operations, and the spectrum analyzer shows proper waveforms, but we are still not getting any better than sporadic audio blips being transmitted.  We had my system at one time operating at least in Fusion mode but it quit and so far we haven’t been very successful at making it work again.  Fusion audio comes out garbled and I haven’t been able to get DMR mode to work at all.  This is the waveform you are after and with the center frequency you are using in your radio and the span set to 15 khz.  We are able to achieve this using the tuning pots and setup in the SSH from the software, but so far no go to passing the audio.  Wonder what kind of magic that the folks on the internet are making that we can’t seem to do here.

And if it stumps KGØSKY, well then…..  For now will use the store boughten Zumspot

Tuning a MMDVM board using the Pi-Star SSH capability

The MMDVM, RaspberryPi3, and the Motorola GM300 experiment

Speaking of KGØSKY earlier, using parts he bought and put together in the proven method, he was able to make quite a nice profit selling hotspots at a local hamfest recently.  He even programmed up (on the “SPOT”) 😊 the sold units with the customers callsign and WiFi connection so they would work when they got the unit home.  He also had an external monitor setup to demonstrate the system, 3 different radio’s to test each unit sold, and managed to sell all his units! Great job and VERY ENTREPENUER-ish Skyler!  Need one or want one?  Let KGØSKY know!

The setup!



One of my co-workers in California in our absolutely EXPERT AMAZING second to NONE IT Department (can you tell I like these folks?) turned me on to this website for scanning files before install and webpages for nastiness!

Bookmark this one friends!  Really does the trick for taking care of the stuff that you DON’T want to step in of the computer/internet canine (worst kind I can think of) variety.  Like the way I didn’t type what I really think?  CHECK IT OUT!


Once again, watching a series on Netflix I saw what I think is an Alinco rig they were using for coms on Mt. Everest talking to the people on the mountain.  VERY COOL!

The Hamshack Archive Links


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SBE VHF/UHF Chapter 73 of the Air HAMnet



The SBE Chapter 73 of the air UHF/VHF Hamnet is today (Monday) at 9 p.m. ET (6 p.m. PT) worldwide via Echolink KG0SKY-L, node 985839 (available via computer and radio), Allstar node 46079, DMR Talkgroup 310847, AND you can join us via Yaesu FUSION SYSTEM “YSF55411 “Skyhub SBE LINK – SBE Linkup”.  Try it with your hotspot.  The SBE UHF/VHF Hamnet is based in Denver on 449.450, pl 103.5, and the 448.350 Fusion repeater, linked to WiresX room “SBENETCOM” node 46361

And NOW BACK: WØKU 449.625, pl 141.3 ALLSTAR NODE 40368


You can listen on the LIVE STREAM thru Broadcastify at:


We hope you’ll join us. 

See the latest edition of “The KE0VH Hamshack” for more information at



The Society of Broadcast Engineers

9102 North Meridian St, Suite 150
Indianapolis, IN 46260
317-846-9000 ■ Fax 317-846-9120




 73’ from the “Shack”


The KE0VH Hamshack for February 2019

March 17, 2019

Harvey Lee Coonts (W0HLC) Passed away peacefully Dec. 10 at home. He is survived by his children: Elaine, Janice, Amanda and Ernest; grandchildren: Tyler, Brandon, Hannah, Lauren and Emily. Great grandchildren: Rosie and Samuel. He was predeceased by his loving wife Rosa Lee and daughter Diana Joy.

Harvey was born March 8, 1934 in Weslaco, TX and spent his childhood there farming his family’s modest tract of land. After helping a heifer give birth he decided farming wasn’t for him and instead pursued a degree in petroleum engineering. He was soon married, served in the army and welcomed his first child. Graduating from Texas A&M with his engineering degree in 1958 he worked for oil companies in TX, as the State Engineer for UT, U.P. Railroad, Southern California Edison. In 1974 he earned his Professional Engineering license and opened Coonts Engineering. Harvey moved to Colorado in 1979 to be more centrally located in the US for his growing business. Retiring in 2001 after a long and prosperous career Harvey decided “he wanted to get away from all the people” (that is, the front range of course) so he moved to Eckert. From this point on Harvey enjoyed “making friends” at Walmart (and anywhere really), chatting with friends on Ham Radio, mowing his lawn and riding his Scooter. Anyone who knew Harvey would know how difficult his wife’s passing was for him after 61yrs of marriage and he never regained the daily happiness he once enjoyed. Harvey always said, don’t cry for me if you see my obituary. So, in honor of Harvey’s wishes, we celebrate that he is spending this Christmas with Jesus and his precious Rosa Lee.  Harvey was a long time friend of the group that talks on 7.166 mhz here in the Colorado region, making friends, laughing, telling great stories, and was very welcoming to all who showed up on frequency.  Harvey exemplified the ways of hospitality and the spirit of amateur radio.   He will be greatly missed.  73’ Harvey and enjoy eternity with Jesus & your beloved Rosa Lee.

I have been writing lately of course about using DMR, hotspots, Yaesu Fusion radios’ and how we are communicating using this very versatile and easy to implement facet of amateur radio.  During our company meetings this past month Shane KØSDT and myself had the opportunity to display and demonstrate how our systems would work both remotely and at the HQ offices.  This was a lot of fun and while our buddy Matt KEØLNU back in Denver provided our contact to demonstrate how this system worked.  The guys who were onlooking were suitably impressed.  We used both our DMR HT’s and Yaesu Fusion radios to show how all worked.  As of this writing Stan K5JNT has become active on the 310847 DMR Talkgroup using a hotspot in Mississippi and on travels around his area in the deep south.  While I was on mission to southern Colorado we had a great QSO between myself while mobile on I-25, Matt KEØLNU in North Carolina, Tim KAØAAI on the island of Lanai in Hawaii, Shane KØSDT in Montana.  If you would like to join us, drop me an email for more information.

Talking to Shane KØSDT in Montana while in the hotel room in southern Colorado via Yaesu Fusion mode to DMR with the Zumspot hotspot

Here you see my name and callsign on the Anytone DMR HT of Stan, K5JNT while he was in Alabama working on a project while I am in the Denver area.  REALLY COOL!


And this is SO COOL!  Shane KØSDT had to make a work trip to American Samoa in the South Pacific, and of course he took the DMR hotspot and his Yaesu handheld radio.  We had many great QSO’s while he was there.  The DMR system is definitely a great alternative to keeping touch for both fun and safety without having to make a DX-pedition with HF gear and is certainly reliable in todays world.   And there has been a new development here on the Colorado Front range that will add to the versatility and usefulness of this network we are in the process of creating!  The Denver Water Amateur Radio Club locally in Lakewood has a Yaesu Fusion repeater located on a water tower in the town.  We are in the planning stages of putting it up at Lookout Mountain west of Denver thanks to our good friend Vic Michael who owns many broadcast sites around Colorado and beyond.  This repeater will give us the possible 4th system to link up thru what I am starting to refer to as the “Skyhub Network” system.  So far, we have the capabilities to link AllStar, DMR, Analog, and for the SBE NET we can utilize the ECHOLINK system.  Adding Yaesu Fusion will enhance the reliability and versatility even more.  Stand by for developments.

While watching an Amazon Prime movie on the first ever successful ascent of K2 in the Himalayas by the Italian mountain team in 1954, I saw these pictures of the base camp radio used to communicate with the climbers on the mountain.  Does anyone recognize this base station setup?

You know, after a little research on the internet and looking up “AVC Signal Generator” which can just be made out in this picture, I believe this isn’t a transceiver at all, but a piece of test gear which was used as a prop.  Any idea’s?

Also, saw this on the Netflix movie “IO”.  Icom and Yaesu HF rigs!  Being used for communications with others left on earth in this story.  VERY COOL!


Stan K5JNT at HQ with the coffee/espresso/everything machine wondering “what is the PL tone?”

“Will it do DMR?” 😊  Me TOO!

See past editions of the newsletter at:




5 Years AGO:


6 Years AGO:

See past editions of the newsletter at:


5 Years AGO:

6 Years AGO:


Don’t forget the SBE Chapter 73’ Of the Air

AllStar, Echolink, and DMR (Talkgroup 310847) Hamnet, every MONDAY EVENING

At 7pm Mountain time (9pm Eastern) for radio discussions, both

Broadcast engineering and amateur radio.

Details on how to join us are at


I hope

You will be able to join us and share your engineering and

Ham exploits!

73’ from “the Shack” & God Be With You!

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