By Arnie Coro
radio amateur CO2KK

Si amigos ,  I am Arnie Coro in beautiful La Habana Cuba , and it is my pleasure to present this edition of Dxers Unlimited…. When I began to write the script of this show, early this week, the main headline that was seen at several Internet sites devoted to the radio hobby , Monday morning, highlighted the fact : thirty two days in a row… without sunspots !

There is no doubt that we are now well into a period of very low solar activity that resembles what happened during the end of solar cycle 23 in 2008. Despite solar flux figures that have hovered near 70 units and even lower values, the propagation conditions on the HF bands show a slight improvement that can be attributed to the Earth now entering into the equinoctial period, when both northern and southern hemispheres receive the same illumination for a few weeks…

Then on Tuesday , the fifth day of March , very interesting news started to reach headlines… A new small active sunspots region was born on the solar Northern Hemisphere, and it showed a different magnetic polarity than the one that has characterized the sunspots of the now ending solar cycle 24….. the magnetic signature of solar active region 2734 is telling us that it should belong to the new solar cycle 25 now overlapping with the tail end of solar cycle 24.

You are listening to  Dxers Unlimited, our station’s long lasting contribution to the development and enjoyment of the wonderful hobby we all know as RADIO… I am your host Arnie Coro, radio amateur CO2KK and here is now item two of today’s middle of the week program.

QSL on the air to listener Alex Daugherty who sent an unusual report from Missouri, USA… It is related to our 6000 kiloHertz English language program as received Monday March 4 at 0431 UTC. I now read his reception report as seen on the e-mail —

Date – Time        03/04/2019 – 0400 (UTC) Frequency (kHz)        6000 Language        English

Program Details         Cuban trust in the electoral process. Later, broadcast included listener news from India and Massachusetts .

SINPO        42233

Receiver/ Antenna        Tecsun PL-880 with random wire ant.

Then listener Alex added the following Comments

Listened from 0400-0415 until fading out mostly. Regained signal at 0425 (UTC). Surprised at how well I received the transmission considering I was in a basement in Missouri!

Yes, it is quite unusual to receive reports from receivers located below the ground level…. Yes amigo Alex from Missouri , here is your QSL on the air , and the QSL card will be sent as soon as we receive your postal mailing address !

Now another QSL on the air to listener Randall who lives in Utah and enjoys both short wave listening and operating his amateur radio station, that includes using several of his homebrew regenerative receivers. Randall is also using the now very popular FT8 digital communications software, but he agrees with me that FT8 contacts lack the warmth of a real human , not a robot, at the other end of the two way QSO !

Yes you have just heard CUBAN CONGA DRUMS, that are played by hand hitting different areas of the tight goat skin membrane to extract the most amazing sounds.

QSL on the air to Italy Michele  Amico callsign iz2eas@gmail.com Asunto: Reception report from Milan, Italy For: Radio Habana Cuba <radiohc@enet.cu>

Dear Friends, Radio Habana Cuba,

Here I am back to you again, with a reception report relative to a transmission heard on the *26th of February 2019,* from *06:00 to 06:40 UTC*  on the frequency of *6000 kHz*, with a broadcast in *English*; the receiving conditions where good, with a *SINPO 44444.* The alternative frequencies: 6060 kHz was weaker and 6165  kHz was as strong but with heavy interference from another station on the same frequency .

Then he adds a detailed list of the program contents and continues. It is always a pleasure to tune into your station, and I try and listen regularly, especially in our morning, before going to work… for me, it’s more convenient than in the evening, when you have a broadcast directed to Europe. As usual, may I ask for your QSL card, if it is not a problem ?

I shall stop here. Please receive the best wishes of good work. Yours Truly,

Michele D’Amico (IZ2EAS) Milano, Italy

Yes this is Radio Havana Cuba broadcasting to the world from sunny , beautiful Cuban archipelago with its two main islands and more than three thousand islets and keys — We are using the following international short wave broadcast bands… 49, 31, 25, 22, and 19 meters plus our 60 meters Tropical Band transmitter operating on 5040 kiloHertz. In a few days we will be starting to use the A19 period spanning from the end of March to the end of October…

By the way we continue to receive excellent signal reports from Northern Mexico, the Pacific Coast US states and Northwestern Canada picking up our 6100 kiloHertz frequency on the air during our local mid night to two o’clock in the morning English language broadcast beaming at 315 degrees azimuth , using a four by four curtain array of dipoles, ITU antenna type HR 4, 4 dash 0,8 .

Here is now our popular technical topics section of Dxers Unlimited…TODAY I will again be telling you about end fed wire antennas for shortwave reception and transmission, focusing on an antenna type best described as a asymmetric almost end fed dipole…. Now let me clarify… YES it is a dipole because it has two legs, but one is much shorter than the other, and almost end fed because the feed point it located at the antenna insulator that separates the long leg from the short leg that is used as the feed point of the antenna… But, I have not finished yet… the asymmetric almost end fed dipole is connected to the coaxial cable downlead using a balun transformer. Or in some cases best results are achieved using a matching device known as a U N U N.

A popular version of this type of asymmetrical antenna is known as the Carolina Windom, that is now in use by several Cuban radio amateurs Dxing enthusiasts with good results… The Carolina Windom requires experimenting looking for the optimum matching system as Izquierdo CO2QU told me recently during a local two meters  band FM contact… If a half wave center fed dipole antenna places the feed point too far away from your transmitter’s location, then any version of the Carolina Windom will be a good choice…

Jesus CO2DC , our 40 meters band Dxing guru used an asymmetrical fed dipole with the short leg of a quarter wavelength cut for seven thousand one hundred, and the long leg made using three or five quarter wave length , with the long leg aiming at the area where you want your signal to provide a maximum. In the case of CO2DC antenna , he had it aiming at Europe, a azimuth of 45 degrees from Havana , making possible for him  to work many European CW and even SSB signals while running just five watts to a Russian compact transceiver known as the ALMAZ…..

Si amigos , experimenting with antennas is one of the more than 93 ways of enjoying our radio hobby…. and I can assure you that it brings many nice rewards when you are operating the ham radio station using a home brew antenna system. It happened to me way back in 2009 when after finishing installing a one third of a wavelength vertical antenna with four quarter wave radials, a quick CQ DX call on 28.495 kiloHertz brought back a five by nine signal from a station in Antarctica !

By the way the antenna system is an excellent low take off angle system ideal for working F2 layer DX on the 20, 17, 15, 12 and 10 meters bands where its overall size makes it a practical antenna to be installed at any rooftop , garden or backyard !

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30-Meter Digital Multi Mode Weekend – March 16th & 17th 2019

From: “dhobson123@aol.com [wsjtgroup]”
Subject: [wsjtgroup] 30 Meter Multi Mode Weekend – March 16th & 17th 2019
Date sent: 24 Feb 2019 13:54:13 +0000
Send reply to: dhobson123@aol.com


30 Meter Multi Mode Weekend
When: March 16th and 17th 2019
Where: 10 MHz – 30 Meter Band (10.100 – 10.150)
Objective: To promote experimenting and using different digital modes on the unique 30 Meter Band

Please join in if you have time this weekend. Those of you who want to participate using the more common modes of CW, FT8, BPSK31, RTTY, we welcome that, but those wanting to try other less used modes please do so and turn your RSID/TXID on to help others know what mode you are transmitting (common modes i.e. BPSK31/RTTY no need for RSID, do use RSID on the less common/exotic modes i.e. QBSK/HELL/MSK/DOMINOEX/ THOR/THROB/CONTESTIA/OLIVIA/etc.).

A number of digital mode groups will be participating this weekend so if you have wanted to try out a new digital mode or make some contacts using less common digital modes this weekend might be of interest to you. There are a number of multi-mode digital software programs so this is also a chance to get on the 30 Meter Band to try them out.

Most of them have RSID/TXID (Reed Solomon Identifier- automatic mode detection and tuning which will help or aid for the less commonly used digital modes so turn on the RSID/TXID).

This event is NOT a contest…no set times…no rules…no exchanges…no logs to send in or to anyone….no winners other than
those that participate with casual use of the 30 Meter Band knowing that others with like interests will be on this weekend to experiment, ragchew, DX and have some fun trying different digital modes!

Where on the 30 Meter Band to find different digital mode activity:
(Note: these are suggested only and observations of known digital
mode activity….all dial frequencies are USB for digital modes….. below ” **** ” indicates for the more active or used frequencies & modes)

10.100 – 10.130 CW ****
10.130 – FT8Call
10.132 – SSTV-Narrow (MP73-N) Region 2
10.132 – 10.134 ROS Region 1 (Region 2 – note not legal in USA)
10.135 – OPERA
10.136 – FT8 (WSJT) ****
10.138 – JT65 JT9 (WSJT)
10.1386 – MEPT/WSPR
10.138 – 10.140 – JT65 (WSJT)
10.1405 – PROPNET & PropNet Robots (BPSK31)
10.140 – 10.141 BPSK31 QRP
10.140 – 10.142 BPSK31 – DX Region 1,2,3 (or
BPSK/QPSK,31,63,125,etc.) ****
10.142 – 10.144 RTTY
SIM31,etc. -note:Turn on TXID/RXID
10.144 – FeldHELL (10.137 – 10.144)
10.144 – SSTV-Narrow (MP73-N) Region 1
10.142 – 10.144 – ALE-400hz
10.145 – 10.148 – ALE-2khz
10.147 – 10.148 PSKMail/APRS
10.1491 – 10.1495 APRS
For a more detailed 30 Meter Band Utilization Chart our digital
friend Ian G3NRW has helped us on that so please go here:
http://g3nrw.net/30m/ http://g3nrw.net/30m/

Operating hints for the weekend:
– Do use RSID (RXID/TXID) for the less common/exotic modes (i.e. Contestia,Olivia,Domino,etc)
– Do CQ with RSID for more than just a few of CQ’s, don’t
expect to have someone to reply on a less common used mode the first few CQ’s…give it a while for others to find you and the mode being used
– Do use good operating habits – clean signal, lowest wattage to
complete the QSO, QRL in common mode first, if band is busy or crowded spread out or use narrower width modes (i.e. if band is busy don’t use OLIVIA 8/500 in the middle of the 30 Meter PSK 10.141 portion of the Band-not good operating habit if the band is busy and you will not make many friends)
– Do not let not having a dedicated 30 meter antenna stop you from
joining in….load up what antenna you do have and give it a go on 30 meters.
– Do have fun and compare modes, wattage, antennas, etc with other operators that are interested to do the same..most the 30 Meter Digital Operators are not Call,599,73 most want a QSO (even DX) but also keep in mind that for poor band conditions or weak signal work WSJT modes of FT8 (JT65/9) is hard to beat!
– Do use http://www.HamSpots.net http://www.hamspots.net/ for
spotting, announcements of mode, etc.

****Please note we are secondary users of the 30 Meter Band and to use good operating procedures


Have fun and hope to see you on the waterfall!

Thanks from the 30 Meter Digital Group (30MDG) celebrating over 10 years and 10,000 members on the 10mhz 30 Meter Band!

Don kb9umt 30MDG#00001
http://www.30mdg.org/ http://www.30mdg.net/

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Dxers Unlimited’s weekend edition for Sunday  3 March 2019

Top Headline:

Solar cycle 24 at rock bottom… 28 days with ZERO SUNSPOTS… the whole month of February

Dxers Unlimited’s weekend edition for Sunday  3 March 2019
By Arnie Coro radio amateur CO2KK

Hi amigos radioaficionados… Yes my friends living North of the Equator…. we are all now enjoying the typical spring equinoctial propagation conditions on the short wave bands especially HF band openings that are happening around local sunset and again near sunrise. The sporadic e  layer events are few and of short duration at this time, but that will change by the end of April. The summer E skip season is still a couple months away. Now let me say that the  Six Meters band, spanning from 50 to 54 megaHertz is very much underused and activity on it is very low, something that puts that frequency band assignment in jeopardy, as there are many potential users for that marvelous part of the lower VHF spectrum. But as always even now around the spring equinox openings via sporadic E layer events have happened here in Havana up to the FM broadcast band when some very strong E layer clouds make that possible. Aurora Borealis reflections, backscatter signals from the auroral curtain, sudden changes in signal levels along propagation paths that go through the North Pole, and the appearance of very high maximum usable frequencies will from now on become less and less frequent as solar cycle 24 continues its downward slope towards its present minimum to be reached by the end of 2019 or early 2020, depending on the different forecasts and predictions.

Yes amigos , let me remind you all that  way back during 2011 when the daily solar flux some days peaked at up to almost 200 units, 6 meters did open up for F2 propagation for the first time during this solar cycle. But those openings simply do not happen when the daily solar flux is down to below 75 units, as it is happening at this moment..

Item two: For those of you that enjoy minimum parts count electronic circuits… more information following the great interest shown by many listeners that wrote to me requesting information about the ultra simple minimum parts count transistorized regenerative receiver… today I will talk about the diagram of yet another simple radio, that requires not one but three transistors, but that is also easy to assemble and easy to adjust. No danger for children also, because it operates with very low voltage fed to the collectors of the transistors… Three or four penlight cells will power up this radio for quite many hours of listening. The number of electronic components of this other radio is not at the bare minimum, but there are not so many after all.. and believe me that it does work and picks up ham radio stations on the 40 meters band with excellent quality. You will need three NPN high gain transistors and good quality headphones . This new little radio provides what can best be described as also truly amazing performance, considering the very few added parts that it uses.

Experimenters can easily add an external computer loudspeaker set and connect the radio to it so that you can listen without using headphones…. Experimenting with simple receivers that operate from batteries is one of the more than 93 ways that you and I will be able to enjoy this wonderful hobby..

Item three: Also related to minimalist, low parts count radios, I am working again on a new version of a receiver that uses parts recycled from compact fluorescent light bulbs circuit boards… The first version of that project provided good reception on the AM broadcast band, making it an ideal emergency radio, because it runs with just four penlight cells that will last for several months. If you want to see the circuit diagrams just mentioned,  send me an e-mail to inforhc at enet dot cu…

Now stay tuned on this same frequency or connected to our world wide web internet streaming audio… I will be back in a few seconds after a short break for a station ID…

This is Radio Havana Cuba, the name of the program is Dxers Unlimited , and it is on the air twice weekly… Here is now, at the request of several listeners,  information of our schedule. Dxers Unlimited’s weekend edition, the one that you are listening to now, is on the air just after the top of the hour Radio Havana Cuba’s newscast… The program is on the air several times all along the Sunday and Monday UTC days…. Our mid week edition is on the air just after the half hour news, with the reruns programmed for Tuesday and Wednesday UTC days. I must add that the scripts of the two shows are totally different, and also that both of them include our exclusive and not copyrighted short wave propagation update and forecast…

NOW  our next radio hobby related item follows…

Here is now YOU HAVE questions and Arnie tries to answer them as soon as possible… Today’s question came from Canada where we have many Radio Havana Cuba listeners … a listener Fred from Toronto says he is a frequent winter time visitor to Varadero Beach and the Cayo Santa Maria beach resort too. Now he plans for an extra summer visit, and tells me that he wants to bring his multi-band digital radio receiver, and asks if this type of equipment is allowed to enter into the country. Well amigo Fred, consumer type receivers brought by tourists are OK with the Cuban customs regulations, but sophisticated professional communications type receivers do require a special permission from the Ministry of Communications and that also holds for any type of transmitting equipment.

Now the second question that coincidentally also came from Canada, from Vancouver, where amigo Jonathann is listening very late in the evening to our 6100 kiloHertz frequency and he wants to know how much power and what type of antenna we are using on that 49 meters band channel. Well amigo Jonathan we are running 100 kiloWatts and using a 4 by 4 type of curtain array with an estimated gain of around 16 decibels over a half wave dipole, and that sure helps to deliver such an excellent signal into the Pacific Northwest area of North America

And now just before going QRT here is our exclusive and not copyrighted HF plus low band VHF propagation update and forecast… Solar flux will hover very near 70 80 and solar activity will remain very low, and there are no chances for  solar flares during the next two to three days. The sunspot number was at zero for the whole month of February, but now it seems a new lonely sunspot is emerging on the solar disc . Expect some daytime openings on the  the 20, 17, 15 and even on 12 and 10 meters typical of the spring equinox…… Daytime conditions will not be as good as what we will see after local sunset.

See you all at the mid week edition of Dxers Unlimited amigos… It will be on the air next Tuesday and Wednesday UTC days.. Send your signal reports and comments to inforhc at enet dot cu,,, your radio hobby related questions will be answered on the air during our ASK ARNIE section of Dxers Unlimited, Our e’mail address is: inforhc at enet dot cu, and the postal mail box is Radio Havana Cuba,  Havana , Cuba

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Introduction to Mesh Networking Class

Randy WU2S will conduct a monthly class on mesh networking starting Thursday, March 14 at 7:00 pm.

Registration for this class is required. Use the following link: https://zoom.us/meeting/register/df1daee0b4b6aa7cc5b9141539e44ee6

This class will use the Zoom.us video conference facility. You need to download and install an application to join the Zoom conference. It works on all platforms – including Windows, OSX and Linux computers and all smartphones.

We will schedule some hands-on sessions at FLARC to let you work with mesh networking devices.


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Dxers Unlimited middle of the week edition for Tuesday 26 February 2019.

By Arnie Coro radio amateur CO2KK

Hola amigos radioaficionados , you are now listening to the middle of the week edition of Dxers Unlimited. I am your host Arnaldo, Arnie, Coro and here is item one of today’s show:

The Cuban CW Group of amateur radio operators is promoting a project that will help both beginners and experts operate on CW Morse Code Radiotelegraphy mode using a simple low power transmitter… Two versions of the low power rigs are now in the early design stages, one using all solid state devices recycled from retired computer CRT monitors and TV sets, and the other a hybrid transmitter using low power transistors and a pair of also recycled vacuum tubes operating as the driver and final RF amplifier stages…

But, Jav, CO3JK, charlie oscar three Juliet Kilo, the Secretary of the Cuban CW Group wrote an e’mail explaining that the first part of the project aims at building a rugged, reliable power supply for the transmitters. More radio hobby related information coming direct and from the source… in a few seconds after a short break for a station ID, I am your host Arnie Coro, CO 2 KILO KILO in sunny La Habana , Cuba enjoying wonderful early spring weather…

Si amigos this is Radio Havana Cuba… the name of the show is Dxers Unlimited and here is now more radio hobby related information… a few days ago I decided to dismantle an old hybrid amateur radio transceiver that had broken down many times , making each time more and more difficult to repair… It was not an easy decision, but when I started to take the rig apart, it proved to be the correct thing to do, when after testing the first ten electrolytic capacitors removed from the Kenwood TS820S using an equivalent series resistance meter, they all proved to be totally out of the minimum parameters…

Attempting to revive that rig without a supply of high quality fully tested electrolytic capacitors for both the high voltage and low voltages power supplies would be simply an impossible task and it will also require a tremendous amount of time…

Another finding that came out during the first steps of the dismantling process was related to the type of wrap around solderless connections used by Kenwood… that in my opinion was a very poor choice by the designers… The rest of the story is that so far I have carefully removed the VFO assembly,  and the big power transformer that will soon be used for other home brew projects… Other small parts will need to be removed by first extracting printed circuit boards where valuable parts like the single side band filter and many quartz crystals can be recovered for recycling…

Needless to say the Kenwood TS820 S had provided a useful service life of several decades that could have extended further if a different method of assembly had been used…  An before I forget the radio frequency driver stage and the two beam power tubes power amplifier were also neatly removed and could be used for a simple single band rig, making good use of a power supply built using the big transformer recovered from the transceiver…

Item four: ASK ARNIE, la numero uno, the most popular section of Dxers Unlimited is now on the air… answering a question sent by listener Salvatore from Romen , Italy… Amigo Salvatoreo wants to hear my opinion about the possibility of building self excited power oscillators for CW that use the Hartley – Hull circuit…

Well amigo Salvatore, all I can say is that it can be done, but it does require the use of some hard to find parts, like wide spaced air variable capacitors , that are essential to achieve the required frequency stability, and you will also need a very stable fully regulated supply to feed the power oscillator. My very good Italian friend Cris Greggio has built a prototype Hartley Hull single stage power oscillator that sounds very good on the air and does not drift at all.

I remember many years ago building a similar CW rig using a single triode connected 807 type tube , fed from a professional high voltage regulated power supply… It provided about 15 watts output on the 40 meters band and was really stable … Keying was excellent and no chirp was heard from that rig… Using an also home brew regenerative receiver, the 807 triode connected power oscillator made possible making some very nice DX contacts, but I must add that this happened many years ago during solar cycles 20, 21. 22 and 23 that were much more active than the present very weak cycle 24…

Item five: Soon , Radio Havana Cuba will be changing to the A19 transmissions schedule… and very few changes are expected to take place… The reason for not having to change many frequencies has to do with the very low solar activity expected for this season that starts during the spring and comes to an end during October….

You can send your signal reports and comments about our short wave broadcasts to inforhc at enet dot cu,  again inforhc at enet dot cu, and don’t forget to include details of the programs heard so that we may verify your reception reports with a nice QSL card….

More radio hobby related information coming up: Recent radio noise measurements done at several of the world’s most populated cities and also done at smaller towns and villages show something in common… The general background radio frequency noise levels within the frequency range from three to thirty megaHertz has increased dramatically during the past five years where ever measurements made five years ago were available…

The results of those carefully done band scans measuring the background noise demonstrate that services that once where capable of providing good quality coverage like the AM medium wave broadcast band have become, at some urban locations almost useless, even when the stations are using high power transmitters….

Add also that the FM broadcast band is also suffering from many electromagnetic incompatibility problems that reduce the service area of many stations in a significant way….

And now just at the end of the show, here is Arnie Coro’s Dxers Unlimited’s HF propagation update and forecast, expect poor to very poor conditions during the next two days due to the likely to happen effects of a high speed solar wind stream coming from a coronal hole… All  I will recommend is to monitor the lower frequencies for possible propagation anomalies…

Send your signal reports and comments via AIR MAIL to Arnie Coro, Radio Havana Cuba, and use our primary e’mail address inforhc at enet dot cu… See you at the weekend edition of Dxers Unlimited on the air next Sunday and Monday UTC days,

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QSO Today Podcast Interviews Andre K6AH about AREDN mesh networking

Listen to the podcast here.

Eric, 4Z1UG describes his interview with Andre Hansen, K6AH, project manager for the Amateur Radio Emergency Data Network open source project team.

Eric writes “As a nerdy kid of about 10 years old, I used to dream of a brief case telephone and taking it to summer camp. I had it all designed including the use of the now vintage AT&T Trimline handset installed with the radios. Once I had my amateur radio license in the late 70s, the only people who had mobile telephones in Southern California were rich executives, movie moguls, and successful entrepreneurs. These phones were often operator assisted or used a system called IMTS that semi-automatically selected a free pair of UHF or VHF channels to direct dial a telephone call.

At the same time ham radio operators, I mean a lot of ham radio operators, operated “phone machines” or UHF repeaters that had auto-patches or interconnections to the telephone network that were, in most cases, full-duplex and DTMF controlled. On mountain tops radio sites where phone lines were not available, these phone machines had 420 MHz full duplex radio links to telephones lines at the control operator’s house or office. I fulfilled my dream of a briefcase phone by building my own UHF repeater and locating it on Santiago Peak, 5600 feet above Orange County and straddling 3 counties. I was fortunate that I could buy a residential telephone line, on the radio site itself, with Santa Ana telephone number, and a huge calling area.

With my 40 watt full-duplex UHF GE MastrPro, in my car, I could drive from San Diego to Santa Barbara while talking with friends or on the phone. At that time, even the best commercial mobile phones did not work as well as the amateur radio phone machines. I remember one of my ham friends, who worked in a Los Angeles two-way shop, said that Lucille Ball saw his auto-patch rig in his car and wanted one just like it. It wasn’t until the deployment of 800 MHz trunking and then later cellular phones where the mobile telephone user experience equaled that of ham radio auto-patches for many years before.

I start this introduction today to my guest, Andre Hansen, K6AH, and AREDN, because the possibilities that AREDN mesh networking on frequencies above 900 MHz fill me with the same sense of possibility that the childhood briefcase telephone stirred in my imagination. We are almost 50 year past my early briefcase phone dreams where the technology now deployed was hardly a glimmer then. What we hams did with phone machines was cutting edge in those days, is now similar to what we can do in these days with our technology advances. AREDN, as an open source development, by amateur radio operators, for amateur radio operators, has made it easier to make a successful deployment of a mesh network in your community as Andre demonstrates in this episode.

AREDN and mesh networking, is like a parallel Internet, allowing us to connect our own amateur radio servers and services. These networks could even host ham radio exclusive content, like this podcast, for example. The network creates the possibility of contentedness with fellow hams that allows the transport incredible amounts of information, between us. It could be fault tolerant and could survive when the regular Internet fails for a host of reasons we see in the news every day. It should appeal to young prospective hams who can merge their current interests with ours.

For those of you who read this living in major metropolitan areas of the United States and in many points in Europe, if you are not yet connected, you can easily be connected for just a few hundred dollars, today. For those of us who don’t yet have these networks around us, we have to become evangelists in our amateur radio communities to create the “mesh islands” of local hams, then interconnecting our islands to build a regional network, as it is being doing by AREDN in many areas. According to K6AH, the confluence of expertise and available inexpensive hardware has never been better to build out a local, regional, and even national amateur radio mesh network.”

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FLARC’s Own High-Speed DIY’r Presents on his Wireless 3 Way Antenna Switch

K3KKH Presents: A Wireless 3 Way Antenna Switch and Display

The presentation describes a home brew project in which a 2 channel wireless receiver and transmitter is used to remotely select one of the three antennas (two dipoles and a wideband vertical); switch a balun between the dipoles; and perform all of this from the comfort of his shack. The unit is designed to handle 1500 watts (SSB) and operates reliably from his below-ground shack to a switching panel located in the woods 55 feet away.  — Ed Efchak, WX2R




FairLawnARC.org Video Producer/Editor

FairLawnARC.org YouTube Channel Manager

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