Showing posts with label IOTA. Show all posts
Showing posts with label IOTA. Show all posts

Saturday, May 1, 2021

Please give 17m a chance....


With nice weather finally returning, its time to take some green pictures of some outside operating compared to the last still frosty excursion with the Icom IC-705 promoting some upcoming combined IOTA, SOTA  and POTA activity here in the Hudson Valley via the Hudson River Radio Relay event on June 12th.

After some portable antenna discussion with Nolan KE8JCT who will be a guest presenter on HVDN Live scheduled for May 17th at 8:00 PM Eastern US time, I was tempted to build an even lighter antenna out of some really nice yellow Teflon 24 gauge wire acquired from the local candy store known as P&T Surplus.

While Nolan will be talking about the recent USMA Balloon Sat in a few weeks time with us, he is also very interested in portable operations and CW QRP!

There is a growing number of portable focused operators in the Hudson Valley like myself, Nolan, Jonathan KC2BNW and a number of others interested in the convergence of radio and the outdoors.


With a freshly mowed and goose poop free lawn for the moment at casa de K2GOG, I set up my just constructed "Lazy Linked Inverted L" to see how well it would work on 17m.  I needed a back up antenna for my pack and this seemed like a good idea.

This antenna which is supported by the 20ft version Jackite pole in orange is supported by a simple $4.99 Tiki Torch stake at the bottom with a piece of PVC that the pole slides over.

Dimensions for the simple 52 foot long chunk of yellow wire is as follows:

  • 40m Band = 52 feet, plus 12 foot counterpoise, half wave, medium Z
  • 30m Band = Link at 46 feet, half wave, no counterpoise, high Z
  • 20m Band = Link at 33 feet, half wave, no counterpoise, high Z
  • 17m Band = 52 feet, full wave, no counterpoise, high Z
  • 15m Band = 46 feet, full wave, no counterpoise, high Z

The SWR was about 3:1 on 17m, but the magical ZM-2 antenna tuner got things quickly under control at 1.2:1 to help maximize my 5 watts of RF outwards on 18.1575 MHz.  The "long" end of the antenna not visible in the picture was tossed into a nearby tree.

Admittedly, my first contact with this antenna had a much better station down in Texas that probably helped a little, but a contact is still a contact. QSL? YES!

Tom K5VWZ has a world class station and was able to pick me up out of the noise as documented by the recording function on the IC-705. 

I really like this feature and how flexible it is, but to get the file off the radio still means I have to remove the SD card from the radio which is sort of annoying so I could trim it and convert to an MP3 to share with y'all in this article.

Click to play K5VWZ & K2GOG QSO on May 1st 2021

While this was far from an optimal antenna for 17m band and a dipole would have probably done much better, its still always amazing what low power communications without the internet can accomplish.

17m is your next challenge

Be sure to keep an ear on 18157.5 kHz USB as it is known as the 17m HFPACK calling frequency where portable people like me are likely to pop up, but usually not from the backyard.

During the upcoming Hudson River Radio Relay event next month,  expect to look for N2B located on Bannerman's Island (USIAP NY047) which has never been activated by radio before and also N2D, which will be operated by the United States Military Academy at West Point on Constitution Island that now has been awarded USIAP NY073 thanks to this event and its goals.

A few of the eight participating stations like N2B are also technically going to be part of Hudson Highlands State Park K-2079 which actually counts as separate parks such as K-5161 and which you will hear N2U operating on thanks to the PEARL club.  The Orange County Amateur Radio Club operating as N2O from K-2010 and possibly K-2081.

There is much more happening too, so hopefully this article excites you about 17m and some MAJOR upcoming activity across the Hudson Valley.

Learn more about Hudson River Radio Relay - June 12th 2021 and help support Bannerman's Island too!



Thursday, January 7, 2021

Hacking in USB CAT control to the Kenwood TS-50


The Kenwood TS-50 was a great radio in its day and still holds its own against modern radios over 30 years later.

When Kenwood released this mobile 100W HF radio back in 1993, it was in the early days of modern computer aided transceiver or CAT evolution.  

This article explains how to add USB based CAT control to a vintage Kenwood TS-50 and maybe squeeze some extra life out of this great radio when it comes to digital modes.

Gathering Supplies

The bottom of the TS-50 has a small removable plastic disk that allows the user to access a 6 pin connector which the no longer available (and expensive) Kenwood IF-10D computer interface connected to along with the also expensive (and no longer available) Kenwood IF-232C serial converter.  

The original Kenwood IF-232C accessory permitted the inverted TTL communications native on the TS-50 to work via standard RS-232 serial communications at a blazing 4800 baud which is more than fine for simple communications between a radio and computer.

While there are some other aftermarket solutions still available in 2020, there is a cheaper way.

For less than $20 in parts, you can add modern CAT control to your TS-50 for easier use of digital communication modes like PSK31, FT-8, FT-4, JS8CALL and so much more. 

We will also not need to be removing that little plastic disk, so leave that alone.




To add modern USB CAT control to a Kenwood TS-50 you will need:


Both items can be easily sourced via Amazon.com and you will even end up with 9 more sets of wires and matting PCB mount connectors that you can save for some other projects. Mounting inspiration is illustrated and detailed below.  

A small donation from the purchase link of either item is also headed to the Overlook Mountain Amateur Radio Club located in the Hudson Valley to help them maintain its famous 146.805 analog FM repeater and to add to its treasury for future additions like a DMR repeater or advanced APRS digipeater plus support great events like ARRL Field Day, Winter Field Day and other special outdoor events.

Connections on the TS-50

The below photo diagram illustrates which  of the six pins on the Kenwood TS-50 offers what function.



On the CP2104 USB-TTL UART serial adapter, we are going to need to attach the following wires.

For this to work, matching up the TX to the RX and RX to TX pins are needed between both devices.

While some other less detailed guides made it seem that only the TX, RX and GND pins were needed, on the recommended UART serial adapter, we also need to connect the 5V line for a total of 4 wires used. The remaining two wires from the 6 pin pigtail were just left for future use and taped up.



You will see the onboard green LED blink to show that communication is happening between the radio, TTL adapter and computer. You will not be able to see this LED since it will be hidden inside your radio if you install it the way that I did.

Mounting the CP2104 inside the TS-50

After removing all the outside case screws, go ahead and remove both covers of the TS-50.  You may wish to use a piece of painters tape to hold the TS-50 speaker in place while you flip the radio chassis over.

There are not many places to put the TTL adapter inside the Kenwood TS-50 unless you want wires hanging out of the TS-50 which looks messy and unsafe, so now is the time to get organized. If you wish to be neat with this modification, you will need to cut a hole into the side of your TS-50 on the side of the bottom cover.

The support bracket  for the TTL adapter was fashioned out of a brass corner bracket on hand and was insulated with a piece of heat shrink to ensure the metal to did not contact any PCB traces on the bottom of the TTL adapter.

Some zip ties were used to hold the TTL adapter in place, but another piece of heat shrink was used during final assembly to hold things in place. A screw and double nut were also used to attach the bracket to the radio for mechanical strength, but this is optional if you trust glue 100%.

Finally, some epoxy was used to fill up some small gaps left behind from cutting the TS-50 case so that the TTL adapter PCB can add additional structure to the finished modification.

To complete the assembly, simply route the connector end of the 6 pin wire between the front face and main chassis near where shown below.

You can then plug the connector into the radio and reassemble your radio carefully.




If cutting a hole in the side of the bottom cover of your radio, be sure to make sure your mounting bracket or the TTL adapter will not accidently squish board level components such as the picture toroid's.



Using the TS-50 CAT Upgrade

When using software like FLdigi, you can use the "hamlib" for control and select the TS-50 from the menu of supported radios. This is the easier path for CAT control. 

Be sure to set your speed to 4800 baud and you select the correct COM port. Most other settings should be automatically found when using FLdigi and most other software.


After you have the software configured, then go ahead and power up your radio after connecting the USB cable to the TS-50 and into the USB micro port. 

You should be easily be able to change frequency on the radio and have it track correctly in your software of choice. 


Using a TS-50 on digital modes with CAT control

Adding CAT control only offers control of frequency and some other basic functions of your TS-50.  This upgrade does not route any transmit or receive audio, nor does it offer PTT control.


It is possible to use the TTL adapter and a simple 4N26 optocoupler with the CTS wire to add on PTT, but its possible to accidently trigger transmit while the radio powers up or down when the USB wire is connected between the radio and computer, so this feature was left out of this article on purpose. If you wish to enable this convenience, that is up to you.


You can follow this article by HB9AMO  to add PTT if you wish and by using the extra wires we taped up before from the 6 pin connector.  

Routing of audio signals and PTT is done via the 8 pin microphone connector through your interface of choice such as a Rigblaster, Signalink or something like those devices.

 Summary

So now that we have near total control of the TS-50 using only two sets of wires, one for CAT and one for audio/PTT, the old Kenwood TS-50 is much easier to use for digital modes. 

It was decided that the Kenwood TS-50 was the perfect radio to use as part of an inexpensive dedicated digital data station for the Overlook Mountain Amateur Radio Club and joint HVDN special events. 

Given that the radio, computer, power supply, antenna tuner came from inventories held by both organizations, this was the perfect project to show how old and new can be used together to aid in digital awareness of amateur radio in the Hudson Valley and beyond.

If you enjoyed this radio, please support HVDN or OMARC with a small donation via the links below:




And, if you happen to be looking for a great portable case for your own go kit digital or otherwise, the Kenwood TS-50 along with its supporting cast of support components as a self contained digital station has a new home in this great 4U Gator Case and if purchased, a small donation also goes to the Overlook Mountain Amateur Radio Club too!  

You can see this in action at the upcoming COVID compliant Winter Field Day event at Ferncliff Forest in Rhinebeck between the hours of 2:00 PM to 6:00 PM Saturday January 30th and from 9:00 AM to 2:00 PM on Sunday January 31st 2021.



Saturday, January 2, 2021

Virtual HVDN Field Trip: The Farmacy Seeds Network & Making the HV Green

the farmacy seeds network


CJ KD2IIN of The Farmacy Seeds Network had Steve K2GOG of HVDN on as a guest for his live stream back on December 29th, 2020 and was only interrupted by paranormal activity once during filming, no thanks to a famous occultist visitor from 100 years ago who heard us talking about him!  

Be sure to check out this informative two hour long interview partially related to our upcoming special event on Bannerman Island this spring. Date for that is still TBD.  Sign up for news to get more details.





Sunday, December 20, 2020

6 Hudson River islands & a mission....


The Hudson Valley of New York gets its name sake thanks to the 315 mile long Hudson River. which starts in the Adirondack Mountains and empties out into the Atlantic Ocean between Manhattan Island and Jersey City.

There are only six present recognized islands in the Hudson River but many former islands that have been lost thanks to human based expansion. 

Over the last 200 years, islands which were close to shore were reattached to the mainland by filling them in with construction debris or earth materials to help make room for rails, bridges and roads.

As of 2020, the remaining official six islands of the Hudson River are:

  • Schodack Island
  • Esopus Island
  • Pollepel Island
  • Constitution Island
  • Iona Island
  • Hudson River Islands Park

HVDN & Islands


When Hudson Valley Digital Network was formed in 2017, the goal was to find areas of convergence between wireless technology and other hobbies. 

The word "convergence" is referenced many times across our website, other articles and presentations. 

This article will help share a great example of convergence thanks to these six islands and some ways that area outdoors enthusiasts and conservation groups can work with amateur radio aficionados to broaden the reach for needed donations related to the upkeep of these island treasures.

Esopus Island, Iona Island, Constitution Island, Bannerman Island, Pollepel Island

Lets explore some history of these six islands and why they matter to the future of the Hudson Valley and the evolution of amateur radio activities related to these treasures and extending to other destinations in the future like the man made Walkway Over The Hudson and our many peaks that flank either side of the mighty Hudson River.

Schodack Island

This 1,052 acre island is actually no longer an island since it became a continuous peninsula in the early 1900s, but its still called an island, just like New York City's famous Manhattan Island which some may call a peninsula too. 

A small land bridge at the north end of the Schodack Island now connects it to the mainland, while the New York State Throughway Connector passes over the island and links I-87 and I-90 together for more efficient transportation. 

Before a federal government project dredged up material from the river to create deeper water navigation, Shodack Island was actually six islands. 

Schodack Island
Going back to the time before Europeans had settled in the area in the 1500s, the native Mahicans called the area home and was considered a major settlement area dues to its abundance of life sustaining animals, fertile farming conditions, access to fresh water and natural security brought on by the river.

Little Shodack Island, Moesmans Lower Schodack Island, Mull Island, Houghtaling (Schutters) Island, Schodack Island and Mull's Platt are the six islands that now are simply referred to as Shodack Island. The only free standing island of Schodack is the tiny Little Schodack Island.

In 2002,  Schodack Island State Park was created to help maintain its conservation and enjoyment.  

This relatively large island has parts that span Rensselaer, Greene and Columbia Counties.  The island is also located in what is known as grid FN32 for those interested in a really short international standard way of defining a location using the Maidenhead Locator System.  Schodack Island also can be known as K-2136 thanks to the "Parks On The Air" initiative.  Unfortunately, Schodack Island is not part of IOTA or USIAP


Esopus Island

Compared to the expansive Schodack Island, the much smaller Esopus Island can be found in Dutchess County and is roughly 1500 feet long and 120 feet wide. The Lenape native American tribe had made use of the island for centuries and prior to its current name, Esopus Island was once known as Pell Island dating back to the 1800s.

While now uninhabited and under the control of the New York State parks system, back in 1918 there was a Mr. Aleister Crowley who spent 40 days and 40 nights on the island, who has a somewhat sordid story himself involving the occult and magic.  

K-2101 POTA Esopus Island
There is some further mystery surrounding this island, including its stone boat house and a small million dollar cottage on nearby private Bolles Island, which is considered part of Esopus Island under the same park system name linked to Mills Norrie State Park

Sadly, Esopus Island is not currently recognized as an "Islands On The Air" destination, but it is part of POTA thanks to it being officially part of Mills Norrie Park (K-2101), where you can launch a kayak from if you wish to access the island. It is also part of the US Islands Awards Program.


Pollepel Island

This rocky island is also more famously known as Bannerman's Island and is also located in Dutchess County.  

Before it was purchased by Francis Bannerman VI in the mid-19th century, the island was already part of American history as a defense point during the Revolutionary War where "chevaux de frise" were put in place to help slow down British military ships.

Following the American Civil War and the later Spanish-American War, Mr. Bannerman purchased surplus military equipment and he needed a place away from population centers in New York City to store the more "explosive" merchandise in his inventory.

In 1901, Bannerman started construction on his newly acquired and soon to be island fortress.  A castle like structure was built to hold over thirty million munition cartridge's and his name was boldly painted across its widest wall, some of that lettering can still be seen over a 100 years later.

















The same year that Mr. Crowley was squatting on Esopus Island, Mr. Bannerman passed away and two years later in 1920, a large explosion destroyed much of Bannerman's Castle.  Luckily, no one was injured and the family residence building was not harmed since it was located further away on the island from all the arsenal remnants.

Fires and natural conditions have started to reclaim parts of the magnificent buildings, but the Bannerman Island Trust which was formed to protect this national landmark has helped maintain what is left for future generations to enjoy.

While Bannerman/Pollepel Island is now also considered part of the New York State park system, it is not qualified as part of IOTA, but is registered as part of USIAP, but not activated.

Via the core mission of HVDN, we seek to not only change this, but to do so in a way where this historic site will be able to benefit through the generosity of amateur radio enthusiasts wide reach that many do not really think about to help with needed donations.

The bigger challenge is explaining how we will do this, so please keep on reading.


Constitution Island

The name of the island is directly related to our rich regional history and is the only part of the famed West Point U.S Military Academy to be located on the eastern side of the Hudson River.

This island was home to the earliest of the Revolutionary War fortifications and now includes an amazing educational center which details the last 250+ years of natural and human influenced history. 

Constitution Island is home to the important conservation center known as Constitution Marsh Audubon Center, which is a hidden gem along the shores of the Hudson River and nearby the famous Boscobel House and Gardens.

Just like Schodack Island, its possible to access some of the Constitution Island property without needing a boat and this is thanks to a series of walk ways that spread out into the marshlands funded by donations and built by volunteers. 

While almost everything in the surrounding area is considered as historic as you can get in American history, there is no official Parks On The Air,  Islands On The Air or US Islands Award Program designation for this fantastic day trip destination located in Putnam County. 





















Iona Island

The only major island on the Hudson River that is part of the western shore county of Rockland, is Iona Island and is officially part of the USIAP via its NY022R designation. While this island sometimes is referred to as a stand alone park, it is actually part of Bear Mountain State Park.  

Until 1947, the island was used as a Naval Ammunition Depot and has since been added to the National Natural Landmark register in 1974.

Iona Island is part of the POTA program with its K-2081 designation, but is not part of IOTA.  This island located in grid FN31 is also very close to FN21 nearby, which may interest those interested in grid chasing expeditions, another popular amateur radio activity.

Hudson River Islands Park

We close this journey along the Hudson River with the most unimaginative named island on this important waterway, which also holds the POTA designation of K-2080.

This state park is located in Greene County and is comprised of the Stockport Middle Grounds, the Middle Ground Flats and Roger's Island if you were wondering how did this park get the name. Roger's Island has USIAP NY043P status.

The downriver Esopus Island is not the only island to have a history of those looking to have a temporary island home, but the scenery certainly makes one wish to spend an extended time here, especially in the warmer months in part to its natural beauty in Columbia County.

A second POTA designation exists for the same park, which is pretty rare plus it is also part of USIAP too, making this a triple threat activation or reason to visit by boat, car or bike.

The Middle Ground Flats has K-5417 assigned to it and if you have a boat, its possible visit and make an additional POTA activation that technically should really be an island, but is not recognized by IOTA or USIAP.


Explaining IOTA & POTA Importance

Unless you are an amateur radio enthusiast already, the constant reference to IOTA, POTA, grid squares, chasers and  activations may have been confusing.  

The reason why explaining this last was important and hopefully draw you into something interesting without getting super technical right away, but hopefully you noticed the many hyperlinks you can go back to visit.

Most people associate amateur radio with people spending late nights in a dimly lit basement conversing via Morse code on big radios that have ancient vacuum tubes inside them.

While that image may have been true overly 50 years ago, much has changed in the radio enthusiast hobby which now encourages the ability to get outside and play radio from temporary locations with very modern equipment, a DIY kit or something entirely homemade.


Various recognition awards exist which "gamifies" the ability to either make contact with many other POTA or IOTA based stations or even get out and allow you to become the sought after station yourself.

It is very easy to obtain a General class amateur radio license which permits almost all use of the  "high frequency" 1.8 to 30 MHz spectrum used that amateurs and make wireless contact without the need of any network for long distance communications.


An example station used by Don WV1W is pictured and who also has a great book available for purchase with lots of helpful tips to get started with POTA and related operating activities. 


There are actually other ways to activate parks, islands and even summits on the air (SOTA) using satellite communications capabilities or even simple hand held radios too on the VHF/UHF bands. 

An example is Steve K2GOG who is shown with handheld radio he used to make contact with others from on top of the fire tower in his background since space was limited and did not allow for larger HF antennae at the top of the tower!

Amateur radio offers something for everyone and if you like talking with other people about your recent hikes, bike rides, geocaching adventures or country side strolls where you may end up painting or sketching your destination, imagine the discussion you may start with a fellow human when they ask you about your radio equipment when trying to make contact with other people.

How can IOTA, POTA & XOTA help great causes?

If you have ever participated in different walks or events to raise awareness and donations to support great causes like Wounded Warrior Project, National Alliance for Mental Illness (NAMI) Walks or Relay For Life; its possible with amateur radio to open up new possibilities in creating awareness on a much greater scale and beyond just your local community.

For over 130 years, amateur radio operators have sent each other commemorative keepsakes called QSL cards.  These postcard sized tokens often include a special photo on the front and contact details such as time, date, frequency and location on the back.














During certain contests or special events, sending a small donation to support the event in question, would certainly motivate who you contacted to send you a QSL card.  

In the past, for those extra rare contacts it was even common to mail ahead some extra stamps or something called an international reply coupon (IRC) to help offset return reply costs.

If local communities of amateur radio operators and the clubs they are members of can help raise exposure for great causes like Bannerman Island conservation through a special event activation, it should be easy to raise funds via a donation page where the contact can be confirmed and a QSL card be mailed out.

2021 Resolution: HVDN GO:GREEN Initiative

Using the Hudson Valley Digital Network callsign N2HVD, we expect to schedule an official activation of Bannerman Island in the May/June timeframe.

The 1st initial planning meeting among area amateur radio leadership took place in December and will meet monthly to help organize efforts and to engage in advance with other organizations who may wish to help make the event a success. Things we will be looking for include, but not limited to:
  • A uniquely designed QSL card to commemorate the event
  • Help with a donation landing page, with all proceeds going to Bannerman Island Trust
  • Willing and capable radio operators interested in a boat journey to the island
  • Assistance with marketing and advertising of the event
  • Other area communications and well wishes for success
If you have questions or are interested in more information, please contact:

Steve Bossert K2GOG
Co-Founder, HVDN
info@hvdn.org
Slack:  hvdn.slack.com  
Personal E-Mail:  K2GOG@yahoo.com