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Anthony has created and given nearly 400 presentations covering every aspect of the hobby with a focus on encouraging new and experienced hams to explore new things. He maintains a Google Doc page with a live spreadsheet with links to online versions of the presentations and to YouTube links of recordings. All of his presentations have dozens of active links to related resources. To reach this page, just type the following in your browser address bar (no 'www' needed): tiny.cc/k8zt-p He also maintains a web page with hundreds of links to resources: https://www.k8zt.com/home Anthony is on the Board of the RATPAC - the Radio Amateur Training Planning and Activities Committee - which hosts weekly Zoom sessions Wednesday evenings for those interested in general Ham topics and Thursday evenings for public service and emcomm topics. Their groups.io site is here: /g/RATPAC Last but not least, this link will take you to a dynamically updating webpage with the schedule for future RATPAC Zoom presentations, and links to artifacts (presentations / YT recordings) of past sessions: tiny.cc/ratpac-list ( http://tiny.cc/ratpac-list ) -- 73, DaveT

All, The Radio Amateur Training and Planning Committee (RATPAC) is hosting a series of Zoom presentations on Winlink use in Auxcomm and Emcomm applications. The next one is Aug 24, 2023. There are more than 20 previous sessions captured on YouTube. Both the upcoming schedule and links to previous presentations are available here: https://www.ratpac.us/WL 73 DaveT

Hi all, This is a "pinned" topic containing a sampling of other amateur radio-related groups.io groups of interest - there are many more groups than are listed here. NOTES: Most of these groups are "Premium" groups (owner pays a yearly fee) and have "Files" and "Wiki" sections which may contain very valuable resources - be sure to check them out - these areas are accessed by links in the left pane of the web page. The K3CUJ group operates under the "free tier" of groups.io and does not have these sections. Some of these are "Public" groups and you can post on those without joining. Others are "Private" groups that will have a "Join" button on their home page - most of these expect you to set your identity to your First Name and Callsign after joining. Usually you can read and search the messages/topics regardless of your "join" status. Antennas Ham Antennas - https://ham-antennas.groups.io/g/main Anytone Anytone 878 - /g/ANYTONE-878 AT-D578UV - /g/AT-D578UV Clubs Northeast Maryland Amateur Radio Club and Contest Society (N3FJP) - /g/NEMARC Digital Modes - Keyboard (e.g., RTTY, PSK31, Olivia, MFSK) fldigi suite (Windows users): /g/winfldigi/topics mmtty - /g/MMTTY-SB-RTTY PSK31 - /g/PSK31 Olivia - /g/Olivia Digital Modes - Non-conversational / Weak Signal (e.g., FT8) GridTracker (powerful adjunct to WSJT-X) - /g/GridTrackerApp JTAlert (popular adjunct to WSJT-X) - https://hamapps.groups.io/g/Support MSHV (WSJT-X derivative used by some DXpeditions) - /g/MSHV WSJT-X - /g/wsjtgroup Do NOT post anything related to MSHV on a WSJT-X forum; there is contention regarding the use of WSJT-X core code in MSHV Digital Modes - Voice (e.g., SystemFusion, DMR, D-STAR, AllStar) AllStar - /g/Allstar BrandMeister - /g/BrandMeister Digital Ham Radio (all modes) - https://digitalhamradio.groups.io/g/main DroidStar - /g/DroidStar Echolink - /g/EchoLink HamShackHotline - /g/HamshackHotline Hotspots - /g/Hotspots OpenSpot - /g/OpenSPOT System Fusion - /g/SystemFusion DX Cluster / Spotting CC - /g/CC-Cluster Note: W3LPL's server is running CC software; this is a popular client / server combination Elecraft KX - https://elecraft-kx.groups.io/g/main K3 - /g/Elecraft-K3 Win4K3Suite - rig control software - /g/win4k3suite K4 - /g/Elecraft-K4 Win4K4Suite - rig control software - /g/win4k4suite Flex Flex - /g/FlexRadioSmartSDR ICOM ID-52 - /g/id52 705 - /g/ic-705 706 - /g/IC706 905 - /g/IC905 7300 - /g/ic-7300 7610 - /g/ic-7610 A lot of information from Adam Farson (AB4OJ) [SK 2024] and Rob Sherwood captured in the posts 7610 Technical Discussion - /g/ic-7610-tech PW2 - /g/ic-pw2 RS-BA1 V2 rig control software - /g/rs-ba1 wfview rig control software - no longer on groups.io; see forum https://forum.wfview.org/ Win4IcomSuite rig control software - /g/win4Icomsuite Official - /g/ICOM, /g/icomradio Kenwood TS-590 - /g/TS-590 TS-590S/SG - /g/TS-590S TS-890 - /g/TS-890 TS-990S - /g/TS-990S General - /g/Kenwood-Amateur-Radio APRS Radios (with subgroups for each radio type; e.g. TH-D72/D74) - https://kenwood-radios.groups.io/g/main TH-D74 (and some D75)- /g/KenwoodTH-D74 TH-D75 - /g/Kenwood-TH-D75 Logging Programs DXLog - /g/DXLog Ham Radio Deluxe - /g/HamRadioDeluxe N1MM Contest Logger: /g/N1MMLoggerPlus/topics N3FJP Logging programs: /g/N3FJPSoftwareUsers/topics nanoVNA Nano-VNA users: /g/nanovna-f/topics Particularly rich Files section with beginner and advanced users guides; Smith chart explanations; antenna matching guidance; etc. Radio Hobby - All Hobby Types and Activities (e.g., Ham, FRS/GMRS, SWL, CB, CW) /g/AmateurRadio New Hams - /g/NewHams Radio Amateur Training and Planning Committee (RATPAC) sponsored RATPAC - /g/RATPAC NewHams - /g/NewHams EMCOMM - https://sec-emcomm.groups.io/g/main Rig and Station Control flrig - /g/linuxham NodeRed - /g/nodered-hamradio rcforb - not on groups.io but has a forum - https://www.remotehams.com/forums/index.php/board,1.0.html SSTV MMSSTV - /g/MMSSTV TenTec Argonaut V - /g/TenTec516 Omni VII - /g/TentecOmniVII Xiegu G90 - https://xiegug90.groups.io/g/main G90 - /g/XieguG90G90S X6100 - /g/xiegu-x6100 Yaesu FT-DX10 - /g/ftdx-10 FT-DX101 - /g/FTDX101D FT-710 - /g/ft-710 FT-991A - /g/FT-991A FT2DR / FT3DR - /g/FT3DR FT5DR - /g/ft5dr FTM-300 - /g/FTM300 FTM-400 - /g/FTM-400dr FTM-500 - /g/FTM-500 Win4YaesuSuite - rig control software - No current groups.io group 73 DaveT

Simultaneous use of and charging of LiFePO4 batteries Question posed: Recently I picked up a 12AH LiFePO4 battery from ExpertPower and a 12V/5A smart charger. My clever idea was to rig the battery with a dual set of power poles, one set for the radio and the other for the smart charger. The charger could be plugged in charging the battery as needed and the radio would draw from the battery. The setup works well when the charger is not plugged into the 120V A/C. However, when plugged in and the radio keys up the charger thinks there is a short (due to the 8A current draw) and executes a funky power on/off dance. Other than replacing the 5A charger with something like a 20A charger, is there something I can do to create a stable setup? Thanks..... 73, DE John / KC3FDL John, LFP batteries do not need to be trickled charged like SLA batteries. You can charge them up to maximum capacity and leave them that way for a year with minimal loss of charge. However, i was told by the customer service rep at Bioenno that it’s recommended you connect them to a charger every 2-3 months to allow the Protection Circuit Modules (aka Battery Management System) to rebalance the individual cells in the battery. If an LFP battery sits on the shelf for a year or more without any charging, it’s possible the cells might become too unbalanced to start recharging them. The other reason to do a top off charge every 2-3 months is it will prevent the battery from losing any significant amount of maximum charge capacity. LFP batteries don’t lose more than 3% of total charge capacity if uncharged for a year which is amazingly low. However, loss of charge capacity accelerates over time, and doing a top off charge every 2-3 months prevents loss of even that low 3%. Battery companies generally do not recommend leaving a charger on LFP batteries. They definitely don’t recommend trying to charge the battery while it's simultaneously connected to a load. If you need to keep your rig on the air during utility outages without missing a second of operation time, you need to build or buy a purpose built charger like the one ( https://www.westmountainradio.com/product_info.php?products_id=epic-pwrgate ). It switches the rig between utility power and battery power seamlessly. It’s charging program for LFP turns off battery charging when the battery is fully charged. Note, if you are operating using only solar panels and batteries you must use a solar charger between the panels and the battery. In this case, solar chargers are actually designed to allow the battery to power a load while the solar panels are contributing power. Bioenno recommends not using the load connector on the solar charger if it has one, but connecting the load directly to the battery. See their FAQ for LFP batteries at https://www.bioennopower.com/pages/faq Regards, Mike NN3I ==== [DaveT] Edited amalgamation of a technical exchange on the K3CUJ "elmer@" e-mail list, reproduced here with permission from the two participants and for the purpose of making the information available to all club members now and in the future. -- 73, DaveT

All, Reposting from the AARC club news (which was posting for BARC) - looks like some good social and learning net opportunities: 2 New nets: From BARC: Could you please let your members know that BARC will be starting 2 new nets within our repeater's coverage area. Freq/Tone: 146.670-/107.2 EchoLink N3FQC-R node 286640 New Net # 1: Thursday at 1900L: New Ham's Net Purpose: To welcome new hams and give them experience with using their radio under a no pressure environment. Experience with checking into Nets and dealing with "doubling", and to announce news of interest (Hamfests, etc). Net would be open to anyone, but New Hams would be asked to check in first. Topic to follow check-ins. Will solicit new hams to practice being Net Control. New Net # 2:Tuesday at 1900L: Tuesday Round table Purpose: All hams are invited. Check in and bring a topic to discuss if you wish. It doesn't have to be a ham-related or technical topic. Gives ham within the BARC repeater area a chance to chit chat and talk on the air in a group. Thank you and 73. Warren KN6HXP -- 73, DaveT

All, The NCR&TV museum holds an amazing collection of old radios, televisions, and radio and TV programming memorabilia in a small 2-story house in Bowie. If you have any interest in radios and TVs from their inception to the late 20th century, I highly recommend a visit. They are also going to participate in the World Amateur Radio Day event on April 18th. They have a well-equipped ham equipment configuration at the entrance to the museum. Note there is a fee to enter the museum if you are not a member, but no fee to see the ham set-up. I joined the museum several years ago which allows access to the museum and access to their monthly zoom sessions where they cover many aspects of the early broadcasting networks, personalities, and programming. ======== Join NCRTV for World Amateur Radio Day! NCRTV will be taking part of a nationwide amateur radio event highlighting our very own Ham Radio station – K3RTV! World Amateur Radio Day, held on April 18 each year, is celebrated worldwide by radio amateurs and the International Amateur Radio Union (IARU). It was on this day in 1925 that the IARU was formed in Paris. Join us in celebrating 100 years of IARU! Our Ham Radio Open House is an exciting opportunity for all community members to get hands-on with ham radio and wireless technology. NCRTV’s Ham Station – K3RTV – will be broadcasting all day long, providing demonstrations to the public, and highlighting some of the unique and interesting ways that amateur radio can intersect with fun and learning! We will also be demonstrating smaller “Handie-Talkies,” discussing the role amateur radio can play in emergency communications and how the SKYWARN Amateur Radio Network assists the National Weather Service! This event is part of a nationwide effort organized by The National Association for Amateur Radio (ARRL) and is part of Citizen Science Month in April where ordinary people across the country will work to document 1 million acts of science! Tours of the museum will be offered at a discounted rate of $5.00 per person ($3.00 for Bowie Residents)! There is no charge to join us for our HAM activities! The Museum is in the 1906 Harmel House located at 2608 Mitchellville Rd., Bowie, Maryland, 20716. If you are an amateur radio operator and are interested in helping out by volunteering for this event, give us a call at 301-390-1020, or email Judy at info@...! -- 73, DaveT

Winter Field Day is this weekend. If you aren't up for testing your outdoor or mobile EmComm skills, you can call those who are and keep them busy making contacts. WFD runs Saturday starting at 11:00am to Sunday ending at 4:59pm. If you are calling from home all you need to send is 1H MDC. This means home, one person, Maryland DC (ARRL section). See more info, rules, and details at https://winterfieldday.org/ Mike NN3I

I ordered some Meshtastic gear, and I'm going to start playing with it when it comes in. Is anyone else interested? I ordered 3 of the "RAKwireless WisBlock Meshtastic Starter Kit US915 Base RAK19007 + Core RAK4631" I'm thinking of putting one of them in router mode out on the balcony, and seeing what I can see and talk to. One of the others connected to my phone, and one connected to my laptop. probably worth noting, I plan to use 915 Mhz

I thought I would pass this information along since it is such a good deal. BTECH has a new dual band HT out that has a built-in TNC that uses KISS mode. It can be used to send Winlink email from your cell phone using Bluetooth. The price right now delivered is $148.40 using the discount code “hr2-uvpro”. I suspect this discount code will expire on 1/1/2025 since it was a Christmas special. I got mine yesterday and it works great. The link to the site for purchase is below. Thanks, Joe W3JWS Site to online store https://baofengtech.com/product/uv-pro/ Youtube video showing the KISS modem in use https://www.youtube.com/watch?v=ZBjuaexWy1c

Thought the group might enjoy this article on the ZD website: https://www.zdnet.com/home-and-office/networking/ham-radio-is-still-a-disaster-lifeline-even-in-the-iphone-era-heres-why/

Your Morse code skills will come in handy: https://www.gchq.gov.uk/news/gchq-christmas-challenge-2024

All, For the sixth year in a row, K2RYD (Salli) has organized the 12 Days of Christmas activity. This is a lot of fun - you attempt contact with 12 specical event stations plus two bonus stations from December 14th through December 25th. Any contacts (and $4) nets you a nice certificate. I did this last year and liked it a lot. Here is the excerpt from K2RYD's QRZ page: 6th Annual 12 Days of Christmas - 2024 W2P - Partridge in a Pear Tree, W2T - 2 Turtle Doves, W2F - 3 French Hens, W2C - 4 Calling Birds, W2R - 5 Golden Rings, W2G - 6 Geese A-Laying, W2S - 7 Swans A-Swimming, W2M - 8 Maids A-Milking, W2L - 9 Ladies Dancing, K2L - 10 Lords A-Leaping, K2P - 11 Pipers Piping, and W2D - 12 Drummers Drumming. BONUS STATIONS VC9XMAS1 VC9XMAS2 Work all 12 Days and 1 or 2 Bonus Stations for a "Clean Sweep PLUS" Certificate Dec 14th through Dec 25th Link to Chasers Worksheet - Just Download it and print it out. (No need to send to me. This worksheet is for your convenience only.) Work 1 for a certificate or work all 12 for a Clean Sweep. This year, any of the 12 Special Event call signs may have a /call area to identify the location of the operator. A B-E-A-Utiful certificate is available for pick up after January 31st, 2025. The 12 Days of Christmas 2024 Special Event Certificate link will appear here after Jan. 31st, 2025. Please DO NOT send QSL's cards. Download Certificate Only! Or send $4. and a return address label and we will send you the certificate. -- 73, DaveT

Hey Gang, Newbie member here... Great to meet a few of you at the club meeting last week! Couple questions/help/suggestions... Coils users? - Has anyone tested any brand of coil antennas locally for portable HF setups & performance? eg POTA w/ CHA, Wolf, Mad Dog, or GRA? Packet Radio? Anyone have good success running locally (and HF) Packet Radio/digital hardware/software to specifically run TNC/KISS & AX.25 (digipi, digirig, mobilinkd) & integrating w/ apps like winlink, APRS (text). I hear K3CUJ will be a winlink -9 to annapolis? Any local APRS iGate/digpeaters? 73 Jay, W3ILD (welcome to send me a winlink email or APRS (text))

This is a good article on using Hamsticks (in my case Sharksticks which are similar) in a dipole configuration. I've done so in the past with good results. However, putting up a ground mounted vertical is easier than erecting and guying a Spiderbeam pole and attaching the Hamsticks to it. However, if you are more interested in NVIS and lesser distant QSOs, then a Hamstick dipole is a better to go than a vertical. You can also turn the Hamstick dipole to get some directional gain too. EFHW or long wire antennas are effective too, but require more real estate than a Hamstick dipole. https://www.eham.net/article/2621

CARA's speakers (W1IS & KC1DSQ) last week are authors of an excellent book on antennas. It's packed with practical, tried and true, information on how to build various types of antennas and the concepts behind them. It's a great reference and will help you understand what works and what doesn't. https://batteryeliminatorstore.com/products/wire-antennas-160-meter-to-70-cm-concepts-construction-and-on-the-air

DXpedition to tiny island northeast of Australia on now. Managed to work him on first call despite there being no visible signals on spectrum scope. https://c21mm.mydx.de/?Operating_frequencies -- 73, DaveT

Do you have any tips, tricks, or advice for running fldigi on Macintosh? I'm using Dan Wilt's (N3YQ) documentation (thanks Dan). But if there are any guidelines or gotchas for Macintosh, I'd love to know. (Would even like to know who uses Mac instead of Windows.) My config: - iMac, Sonoma 14.6.1, Retina 5K, 27-inch, 2020 - Yaesu FTM-300D - Digirig with cables for the Yaesu Thanks, Glenn Miller KC3TVL

Just worked 5H1WX on 14.096 with standard F/H mode - time 01:15 UTC - he's calling CQ and there's no one coming back to him. Worked with 100 watts and 40-10 m EFHW. Received a +05 sig report! -- 73, DaveT