George KJ6VU walks us through the most common components found in a modern FM repeater. We cover antennas, duplexers, coax, radios, controllers, and other helpful information for those who are considering taking on the project of an analog repeater build.
Save 10% off of a PowerFilm Solar 30 Watt Panel with Anderson Powerpole Adapter with code WORKBENCH 10 at checkout (through Dec 31, 2018) - 30 Watt Foldable Solar Panel with Anderson Powerpole Adapter Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ BrandMeister Talkgroup 31075 - https://hose.brandmeister.network/group/31075/ Case for 12V DC Power Strip from Rocket City 3d - https://rocketcity3d.ecwid.com/Ham-Radio-Workbench-12V-DC-Power-Strip-Case-p114464423 OpenSpot 2 - https://www.sharkrf.com/products/openspot2/ POCSAG - https://en.wikipedia.org/wiki/POCSAG Google Assistant enabled Repeater - https://www.youtube.com/watch?v=m52-3EuQfnk Benchduino - https://groups.io/g/benchduino KJ6VU’s Previous Repeater Episode - http://hamradio360.com/index.php/2014/10/08/10/ Repeater Builder - http://www.repeater-builder.com/rbtip/index.html CDM Repeaters - http://www.repeater-builder.com/motorola/cdm/cdm-index.html MaxTrac Repeaters - http://www.repeater-builder.com/motorola/maxtrac/maxtrac-index.html Sierra Radio Systems Repeater Controllers - http://www.sierraradio.net/ Hustler G6 440 - https://www.dxengineering.com/parts/hsr-g6-440 PAVE PAWS Over the Horizon Radar - https://en.wikipedia.org/wiki/PAVE_PAWS Coax Feedline Loss Calculator - http://www.timesmicrowave.com/calculator/ Remote Site Monitoring Episode - https://www.hamradioworkbench.com/podcast/remote-repeater-site-monitoring QST Voter Article - http://www.ldgelectronics.com/assets/discontinued_manuals/RVS-8.pdf
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Most of us have several devices connected to the Internet in our Ham Shacks. A computer, a digital mode hotspot, and a Raspberry Pi are several common items one would find. We may not give much thought to these devices because affordable commercially available equipment make it a breeze to connect devices to each other and the Internet. But, have you ever stopped to think whether your hotspot should have network access to the computer you do your taxes on? This week Nick KN6NK and Smitty KR6ZY join us to give an introduction to basic networking topics and a primer on basic but powerful practices to secure our networks in the ham shack and beyond.
Nick KN6NK - https://twitter.com/explodinglemur?lang=en Smitty KR6ZY - https://twitter.com/smittyhalibut Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ BrandMeister Talkgroup 31075 - https://hose.brandmeister.network/group/31075/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ Save 10% off of a PowerFilm Solar 30 Watt Panel with Anderson Powerpole Adapter with code WORKBENCH 10 at checkout (through Dec 31, 2018) - 30 Watt Foldable Solar Panel with Anderson Powerpole Adapter Closed-loop spindle speed control (Arduino PID controller) for my 3040 router (they’re all over eBay) Watching developments on uBITx harmonics/spurs and related fixes Retro DOS gaming on real hardware instead of DOSBox! Thin client and sound card Proposed ARES standard headset interface: http://www.sloecc.org/headsets/proposal_ares_standard_headset.pdf EEVBLOG Raspberry PI PoE Hat Issues - https://www.eevblog.com/2018/09/20/eevblog-1122-raspberry-pi-3-poe-hat-fail-investigation/ Raspberry Pi PoE Hat Issues Forum Post - https://www.raspberrypi.org/forums/viewtopic.php?t=220984 Raspberry Pi PoE Hat Issues - The Register article The 7-Layer OSI Model - https://www.webopedia.com/quick_ref/OSI_Layers.asp 802.11 WiFi Standards - https://en.wikipedia.org/wiki/IEEE_802.11 Dynamic Host Configuration Protocol (DHCP) - https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol Network Address Translation (NAT) - https://en.wikipedia.org/wiki/Network_address_translation Stateful vs Stateless Firewalls - https://www.lanner-america.com/blog/stateless-vs-stateful-packet-filtering-firewalls-better/ Virtual Private Network (VPN) - https://en.wikipedia.org/wiki/Virtual_private_network Demilitarized Zone (DMZ) - https://en.wikipedia.org/wiki/DMZ_(computing) Domain Name System - https://en.wikipedia.org/wiki/Domain_Name_System Dynamic Domain Name System (DDNS) - https://en.wikipedia.org/wiki/Dynamic_DNS COTS wifi+router with third-party firmware - Tomato / dd-wrt / OpenWRT Overview of basic commercial wifi+router security - https://lifehacker.com/how-to-make-your-wifi-router-as-secure-as-possible-1827695547 Wired Network sniffing - http://www.halibut.com/~mark/EtherSniff-v1.0.pdf Wifi security talk Virtual Local Area Network (VLAN) - https://en.wikipedia.org/wiki/Virtual_LAN Ubiquiti Unifi Networking Gear - https://unifi-sdn.ubnt.com/ 
Rod Hardman VA3ON joins George for part two of the “Workbench in the Field” series. Rod and George discuss portable radio selection and field build projects.
Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ BrandMeister Talkgroup 31075 - https://hose.brandmeister.network/group/31075/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ PowerFilm Solar Lightsaver Max - https://www.powerfilmsolar.com/products/lightsaver/lightsaver-max-portable-solar-charger New SharkRF OpenSpot2 Wireless Announced - https://www.sharkrf.com/products/openspot2/ Hytera AR482G Handheld down to $209 at HRO - https://www.hamradio.com/detail.cfm?pid=H0-015987 DMR Registration is Changing - https://www.radioid.net Ham Radio 2.0 Discussion - https://www.livefromthehamshack.tv/2018/06/26/episode-142-radioid-net-updates-with-ve9gln/ AMSAT QRM from Hotspots - https://twitter.com/amsat/status/1034124525011697665 Hans Summer’s QRPLabs - Ultimate3S QRSS/WSPR Transmitter Kit -https://www.qrp-labs.com/ultimate3/u3s.html SOTA Beams WSPRlite - https://www.sotabeams.co.uk/wsprlite-antenna-tester/ Sling pack From 5.11 - https://www.511tactical.com/push-pack.html) Icom IC-7300 Side Panel Handles - https://www.ebay.de/itm/Seitengriffe-fur-die-ICOM-Modellreihe-IC-7300-8600-9700-Gespreizte-Version/263857776249 Palm CW Paddles - http://www.morseexpress.com/palm/ Pignology Programmable Controller “Pigknob” - http://pignology.net/pigknob/ Battery Capacity Calculator - http://www.4sqrp.com/Battery_Capacity/index.php Coax Loss Table - https://www.qsradio.com/coax-and-connector-info.html Full Coax Loss Calculator - http://www.timesmicrowave.com/calculator/ 
This week we are joined by Rob KA2PBT and Evan KD2IZW to talk about building creative solutions to post emergency or disaster communications problems. Rob is engaged with his local high-school and has been working with youth to engage them in hands-on engineering and problem-solving using amateur radio. Evan is a former student who lead a team to design and build a balloon launched cross-band repeater for search and rescue purposes. He presented this project at the 2017 Dayton Youth Forum. He shares with us the components utilized in the repeater and the processes that he went through to design and build a solution. Rob continues to work with students today and he shares with us the most recent project-a portable solar-powered digipeater meant to handle text-based traffic in remote disaster areas with no infrastructure. Along the way, Rob also shares some of his tips on how to get youth interested in amateur radio.
Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ Echolink SVXLink - https://www.svxlink.org/ Power Wheels Racing Series - http://www.powerracingseries.org/ Arduino Mega - https://store.arduino.cc/usa/arduino-mega-2560-rev3 IKEA Ekby Shelf Bracket Indoor Antenna Mount - https://www.ikea.com/us/en/catalog/products/10136135/ MultiRX on GitHub - https://github.com/pabutusa/multirx ICECast Streaming Media Server - http://icecast.org/ Amateur Radio Emergency Data Network - https://www.arednmesh.org/ 2017 Dayton Youth Forum Balloon Based Repeater for Emergency Applications - https://www.youtube.com/watch?v=G4eaChIjk8E 2018 Dayton Youth Forum Data Network for Emergency Communications - https://www.youtube.com/watch?v=WHHmJ4FJBHM 818 VHF / UHF Radio Modules - www.dorji.com/docs/data/DRA818V.pdf Arduino Due - https://store.arduino.cc/usa/arduino-due Balloon - https://www.amazon.com/dp/B004I45LX0 First Science and Technology Programs - https://www.firstinspires.org/ Emergency Antenna Platform System (pole climbing robot) - http://wc2fd.com/index.php?title=Emergency_Antenna_Platform_System Raspberry Pi TNC - https://tnc-x.com/TNCPi.htm Plans for projects (721st Mechanized Contest Battalion) - http://wc2fd.com/ 
Dr. Jack Mandelman K1VT joins us to talk about being a Ham and living in a neighborhood with an HOA that restricts antenna installations. We will talk about approaches and some equipment that one can use to be active on HF when living with such restrictions. We also touch on the role that transmitting and receiving magnetic loop antennas can play in getting you on the air from within an HOA restricted area. Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ Field Radio Podcast Ammo Can Repeater Episode - https://fieldradiopodcast.org/FRP10.php Changes to FRS and GMRS Regulations - http://www.arrl.org/news/fcc-personal-radio-service-revisions-will-affect-gmrs-frs-cb-other-part-95-devices Light Saver Max Portable Solar Charger - https://www.powerfilmsolar.com/products/lightsaver/lightsaver-max-portable-solar-charger QSO Today Interview - https://www.qsotoday.com/podcasts/k1vt BlueDV AMBE Software - https://www.pa7lim.nl/ambepage/ NWDigital ThumbDV AMBE Dongle - http://nwdigitalradio.com/wp-content/uploads/2012/04/ThumbDV-A.pdf DVMega DV Stock AMBE Dongle - http://www.dvmega.auria.nl/DVstick.html AFEDRI SDR - http://www.afedri-sdr.com/ HDSDR SDR Software - http://www.hdsdr.de/ OTARD - https://www.fcc.gov/media/over-air-reception-devices-rule Tarheel Antenna Mounts - https://www.tarheelantennas.com/mounts Tarheel Antenna Ground Radial Kit - https://www.tarheelantennas.com/accessories MFJ-2286 BigStick Telescoping Whip Antenna - http://www.mfjenterprises.com/Product.php?productid=MFJ-2286 MFJ-1886 Receiving Loop - https://www.mfjenterprises.com/Product.php?productid=MFJ-1886 LZ1AQ Receiving Loop Antenna Amplifier - https://active-antenna.eu/ LZ1AQ - http://www.lz1aq.signacor.com/ RCA Antenna Rotor for Loop Receiving Antennas - https://www.amazon.com/AUDIOVOX-Remote-Antenna-Rotator-VH226F/dp/B008468PWC/ref=sr_1_4?ie=UTF8&qid=1533953076&sr=8-4&keywords=antenna+rotor&dpID=41fgb5C1okL&preST=_SY300_QL70_&dpSrc=srch RFForb - RemoteHams - http://remotehams.com/ MFJ Window Antenna Feedthrough - http://www.mfjenterprises.com/Categories.php?sub=1&ref=99 
Get geared up for field operating and setting up your field workbench with John Jacobs W7DBO from the Field Radio Podcast. In segment 1, John outlines his method for organizing and planning your field radio adventures. In segment 2 we list essential tools, parts, and test gear you need for light weight trail ops and full scale Field Day deployments. We wrap up the show with an introduction to the Powerfilm Lightsaver MAX portable battery and solar panel.
Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ John Jacobs W7DBO Field Radio Podcast Comms To Go Field Radio Podcast on YouTube Segment 1 - Plan your Event Mission First Gear Second Identify what you want to accomplish and select gear to match What is your goal?
Field Expediency Doing work in advance selecting gear to maximize time on air versus time setting up / breaking down Field Tested Gear: Load out in living room, then load out in back yard, then load out in local park, then once gear is tested, attempt the big trip. Field test in your driveway or at the park first. Personal prep / Safety First: Personal Emergency Preparations, travel itinerary, weather observations, red flag warnings. 4 Goals:
Gear Must Be:
Segment 2 - Field Workbench Light weight radio events – SOTA, travel, casual operating, emergency prep Have a common simplex frequency Review the wilderness protocol Simplex frequencies:
Big radio events – Field Day, Contesting, Public service events TIP: Get a good cheap tool kit at Home Depot – HDX tool set $20. TIP: Get a bunch of cheap tools at Harbor Freight for the club. Goals
PowerFilm Solar Lightsaver MAX Portable battery and flexible solar panel
Cables Included:
Runs the KX2 fine. No charge controller noise detected on initial trial. 
George KJ6VU takes us through a thorough deep dive of the design of the 4-Port Coax Relay Project. We talk about the five major sections of the project - RF circuit switching with relays, control via PIC Microcontroller, the power supply, the user interface, and serial communications. Each section provides a reference design that could be leveraged in other projects.
Pick up the 4-Port Coax Relay Project Partial Kit from our store - https://www.hamradioworkbench.com/store/p6/4-Port_Coax_Relay_Partial_Kit.html Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ $130 Ham Radio Notebook? - Microcenter Winbook TW110 - http://www.microcenter.com/product/496689/TW110_116_Laptop_Computer_-_Black Windows 10 64 bit Drivers for the Microcenter Winbook TW110 are from the Medion Akoya e222x series - https://www.medion.com/gb/service/_lightbox/treiber.php?msn=30023301&prod=MEDION%20AKOYA%20E2228T%20(MD%2061050)%20A-UK Raspberry Pi B 3/3+ USB Boot Timeout 2 or 5 seconds - https://www.raspberrypi.org/forums/viewtopic.php?t=209416#p1313554 Microcenter Inland MLC SSDs - http://www.microcenter.com/search/search_results.aspx?Ntt=inland+ssd Stuart KB1HQS Portable Gear Loadout YouTube Video Series - https://www.youtube.com/watch?v=y3PF-f4-AUo&list=PLP-XG_VNrkF5ra0ptG0DGtbcBp53sUOii Portable Displays
EEVBlog Debouncing Video - https://www.youtube.com/watch?v=Nj-Q8FQxHhU&t=4s Swordfish basic - http://www.sfcompiler.co.uk/swordfish/ 4-Port Coax Relay Partial Kit
$40.00
The Ham Radio Workbench 4-Port Coax Relay project allows you to connect one radio to four antennas or four radios to one antenna. Two boards can be used to create sophisticated 4 to 4 switching matrix. This project gives you multiple ways to control the relays including local push button, local serial, XBee Wireless, and RS485. This project features:
This item includes the Printed Circuit Board and a Pre-Programmed PIC Microcontrollers Project Documentation and Parts List- https://www.hamradioworkbench.com/4-port-coax-relay.html 
George and Jeremy spend time talking about their 2018 ARRL Field Day Experiences. They discuss their general setups, what worked, what didn’t, and what they would do differently in 2019.
Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ IKEA Office/Workshop Blog Post
FD Logging Thought Exercise
QUAD Net DMR/DSTAR Bridge - https://www.openquad.net/ Netgear Nighthawk MR1100 Mobile Hotspot - https://www.netgear.com/landings/nighthawk-mr1100-mobile-router/default.aspx DVSwitch - https://dvswitch.groups.io/g/main/wiki/DMRlink DVSwitch GitHub - https://github.com/N4IRS MTR2000 Repeater Interface Board - https://www.motorolasolutions.com/en_us/products/two-way-radios/mototrbo/discontinued/mtr2000.html#tabproductinfo Hakko FR300 Desoldering Tool - https://www.amazon.com/Hakko-FR300-05-P-Desoldering-Tool/dp/B00KWM69C4 Full QSK / Semi QSK - https://en.wikipedia.org/wiki/QSK_operation_(full_break-in) Array Solutions Bandpass filters - https://www.arraysolutions.com/filters/bpf-hpf Pignology HamLog - http://pignology.net/hamlog.html Ohio Valley Experimenters Club KD8LBS - http://ovec.club/ Bay-Net Club - http://www.bay-net.org/ Elecraft AX-1 - https://va2ss.com/2017/10/19/elecraft-ax1-ultraportable-1720-meter-antenna-system/ SGC Tuners - http://www.sgcworld.com/ Minix PCs - https://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=minix #WBOTA Walmart Parking Lots on the Air - http://wmplota.org/ 
Jason Chonko from Siglent America is joined by Nick KN6NK to give an in-depth intorudction to spectrum analyzers. We talk about the specs, features, and engineering that make up this handy piece of frequency-domain test equipment. We also explore several common spectrum analyzer uses such as filter and cavity tuning as well as radio purity evaluation.
Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ Siglent America - https://www.siglentamerica.com/ Siglent SSA3000X Series Spectrum Analyzers - https://www.siglentamerica.com/spectrum-analyzers/ EEVBlog Interview with Eric Qin Founder and CEO of Siglent - https://www.youtube.com/watch?v=v9M397sUkEA Spectrum Analyzer Do’s and Don’ts - https://www.youtube.com/watch?v=E6P-R0C9ro0 Sweeping an Antenna for Return Loss - https://www.youtube.com/watch?v=X50qybdiLuk LXI Tools https://github.com/lxi-tools/lxi-tools SSA3021X/SSA3032X reviews: EEVBlog review https://www.youtube.com/watch?v=gkLciTsjGZg teardown https://www.youtube.com/watch?v=-8fr_otW0q4 Block diagram in teardown at 27:05 https://youtu.be/-8fr_otW0q4?t=27m5s The Signal Path http://thesignalpath.com/blogs/2017/09/20/siglent-ssa3032x-9khz-3-2ghz-spectrum-analyzer-tg-review-teardown-experiment/ 
One final piece of content from the 2018 Hamvention. Every year, the QRP Amateur Radio Club International hosts a QRP conference called Four Days in May that proceeds Hamvention. The event is home to a large collection of amateurs passionate about low power operation and building their own radios. George attended the event on Thursday and was able to capture talks by Hans Summers G0UPL of QRP-Labs fame and Dr. Jack Purdum W8TEE, famous in the BITX40 community. Hans talks about the development of his smash hit new transceiver kit, the QCX and Jack talks to us about homebrewing. Special thanks to QRP ARCI President Preston Douglas WJ2V for allowing us to record these great talks.
If you would like more information about QRP ARCI or are interested in joining, please visit http://www.qrparci.org/ We have launched the all new http://www.HamRadioWorkbench.com/ ! This includes our new Online Store where you can order Ham Radio Workbench projects that are currently in production. You can also find documentation for previous projects, an archive of our podcast episodes, and a new Blog where George and Jeremy will post articles. Our Website - http://www.hamradioworkbench.com/ Follow us on Twitter - https://twitter.com/hamworkbench Contact us for feedback and ideas - http://hamradioworkbench.com/contact Connect with us on Facebook - https://www.facebook.com/groups/hamradioworkbench/ Save $100 on the Digilent Analog Discovery 2 Package by using code “HamRadioWorkbench2018” in your cart prior to checkout - https://store.digilentinc.com/ham-radio-workbench-bundle/ Save 10% on a PowerFilm Solar 30 Watt foldable solar panel with Anderson Powerpole adapter cable - no code needed! https://www.amazon.com/dp/B0763QKSXY The giveaway for a free 30 Watt PowerFilm Solar Panel may still be active! http://bit.ly/WorkbenchPodcast Hans Summers G0UPL
Dr. Jack Purdum W8TEE
Adafruit ADABox - https://www.adafruit.com/adabox/ ZUMSpot Digital Voice Radio Hotspot - https://www.hamradio.com/detail.cfm?pid=H0-015993 MMDVM Github - https://github.com/g4klx/MMDVM Pi-Star - https://www.pistar.uk/ Leo Bodnar Mini GPSDO - http://www.leobodnar.com/shop/index.php?main_page=product_info&products_id=301 Time Nuts - http://www.leapsecond.com/time-nuts.htm Uputronics Raspberry Pi uBLOX GPS Module - https://v3.airspy.us/product/upu-rpigps/ KF7IJZ’s Overview of the new Hytera AR482G - the commercial gradio DMR Radio for Amateurs - https://youtu.be/igEXMLJ0QZY Precision Frequency References with Dr. Frank M Howell K4FMH -https://www.hamradioworkbench.com/podcast/precision-frequency-references Airspy R2 with 10MHz frequency Input - https://v3.airspy.us/product/a-airspy/ Airspy Groups.io - https://airspy.groups.io/g/main/topics FlexRadio 6400 - http://www.flexradio.com/amateur-products/flex-6000-signature-series/flex-6400/ |
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