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

• QRP-Labs - https://qrp-labs.com/
• Hans’ personal site - http://hanssummers.com/
• Presentation and thoughts from FDIM - http://www.qrp-labs.com/dayton2018.html

Dr. Jack Purdum W8TEE

• Co-author “Arudino Projects for Amateur Radio” - https://www.amazon.com/Arduino-Projects-Amateur-Radio-Purdum-ebook/dp/B00O2A7I5O
• The JackAl board for the uBITX - https://ubitx.net/2018/05/21/jackal-is-here/
• Jack’s presentation from FDIM - http://traffic.libsyn.com/workbench/W8TEE-FDIM-2018-Homebrewing-Radio-Gear.odp.pdf

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/

Our Interview coverage from the floor of the 2018 Hamvention hosted by the Dayton Amateur Radio Association.
​
00:02:29 - QRP Labs - Hans Summers G0UPL
00:26:07 - Siglent America - Jason Chonko
00:37:09 - Hytera America  - Matt Lunati N7OEI
00:52:20 - Small Batch Assembly -  Bob Coggeshall KW4WQ
01:14:48 - FlexRadio Systems - Mike Walker VA3MW
01:31:04 - Open Research Institute - Michelle Thompson W5NYV
1:37:17 - TAPR - Steve Bible N7HPR
1:45:33 - LOOP Antenna - Sergio I3VHF
1:50:44 - Rigol North America - Steve Huss KC7ZVM

​This week George KJ6VU and Jeremy KF7IJZ are together in Xenia, OH for the 2018 Hamvention.  This episode celebrates the two year anniversary of the Workbench concept, and we are joined by our extended family for the occasion - Mark “Smitty Halibut” Smith KR6ZY, Kenneth Finnegan W6KWF, Gerald “Powerpole the World” Wilson KF5JNU, and Brittany Mrs. IJZ sit in for this roundtable.  We discuss Hamvention impressions, spending other people’s money, and (of course) DMR this week on the Ham Radio Workbench.

Eric Swartz WA6HHQ, co-founder of Elecraft, joins us to guide our understanding of RF receiver performance specifications.  Eric introduces us to common receiver specs such as Sensitivity, Noise Floor, Dynamic Range, Intermod Dynamic Range, Phase Noise, and RMDR.  He tells us what they mean in real-world receiver performance terms, how they are tested, and whether it’s better to have a higher or lower number in each one.  It’s also the final episode before the 2018 Hamvention and George and Jeremy share our plans for our Booth, special offers, and exclusives for show listeners who stop by booth 3104 in Xenia.

Show Topic Begins at 1:09:36

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/

Hamvention DMR Hotspot - 439.3125 TG 31075

George will be giving a forum presentation - Saturday, May 19 - 2:45 Room 3  - “Quick tips for setting up your workbench, HamRadio Workbench Build Projects”

Want to be on the show?  Come to the booth and tell us what’s on your workbench!

Project documentation will be indexed and available on this page - http://hamradioworkbench.com/ham-radio-workbench-project-board-index

PowerFilm Solar 30Watt Foldable Solar Panel giveaway - http://bit.ly/WorkbenchPodcast

We will announce the winners via our company Facebook page on or around June 1.

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/

Visit Digilent at booth 3002

QRP ARCI - Four Days in May - http://www.qrparci.org/fdim

QRP Labs - https://www.qrp-labs.com/

Arduino Projects for Amateur Radio - https://www.amazon.com/Arduino-Projects-Amateur-Radio-Purdum/dp/0071834052

W6DQ QRZ Page - https://www.qrz.com/db/w6dq

Sam Zeloff - Garage Chip Fab
https://hackaday.com/2017/02/25/the-fab-lab-next-door-diy-semiconductors/
https://hackaday.com/2018/04/24/first-lithographically-produced-home-made-ic-announced/
https://hackaday.com/2018/05/03/more-details-on-that-first-home-made-lithographically-produced-ic/

Amp Hour Interview with Sam - https://theamphour.com/390-an-interview-with-sam-zeloof/

Sam Zeloff Youtube Channel - https://www.youtube.com/channel/UC7E8-0Ou69hwScPW1_fQApA

Bletchley Park - https://bletchleypark.org.uk/

Update on George’s Projects on his blog - http://www.kj6vu.com/

Anker Powerline Cables - https://www.anker.com/products/110/Cables

USB In-Line Multimeter - https://www.amazon.com/Eversame-Multimeter-Chargers-Capacity-Banks-Black/dp/B01D9Y6ZFW/ref=sr_1_3?ie=UTF8&qid=1525531260&sr=8-3&keywords=usb+meter

Randy K7AGE YouTube channel - https://www.youtube.com/user/K7AGE

Eric 4ZIUG QSO Today Podcast - https://www.qsotoday.com/

Jeremy’s Workbench made from IKEA Algot Shelving - https://pbs.twimg.com/media/Db6TKjGUQAAfvQ8.jpg:large

IKEA Algot Shelving - https://www.ikea.com/us/en/catalog/categories/departments/bedroom/22798/

IKEA Bekant Desk - https://www.ikea.com/us/en/catalog/products/S09022804/#/S19022808

RF Receiver Specifications Guide from Eric Swartz WA6HHQ

Elecraft Mailing List - http://www.elecraft.com/elist.html

Sensitivity - How well can the receiver hear weak signals?

• Minimum Discernible Signals - noise is generated inside the radio from the amplifier stages and how much amplification is available in the receive chain to bring a signal above the radio’s internal noise floor
• As sensitivity increases, you can degrade dynamic range
• To measure, start by injecting weak signals until you observe the signal level out of the speaker roughly double in amplitude (3dB)
• Lower values are better (bigger negative number), allowing you to detect weaker signals
• Most HF radios are between -125 to -130 with -135 to -138 being on the higher side of performance

Noise Floor

• The internal noise figure generated by the radio with the antenna removed

Dynamic Range

• Strong Signal Handling - how does the radio perform when there are strong signals adjacent to where you are tuned?
• IMDR3 - Intermodulation Dynamic Range
• When multiple strong received signals overload the first receiving amplifier in your radio, the signals get clipped
• When the radio has a broad banded receiver, this clipping begins to act as a mixer and creates intermodulation showing up at different frequencies
• Additional unwanted signals are created in the receiver when multiple strong signals are present
• To measure, begin with two signals apart - the difference between the MDS/sensitivity and the level required to set the signal generator to to cover up the weak signal
• Higher values are better - 90dB range above noise floor is average, mid 90’s to 100 dB is on the higher side of performance

Blocking Dynamic Range

• A strong signal overloading your receiver thereby reducing the gain of the receiver.
• Receivers can have challenges when a strong signal is physically near the radio
• To measure, inject a signal until it causes receiver overall gain to drop one DB
• Higher values are better - typical better than 130dB of BDR, mid 130s to 140s is on the higher side of performance

Phase Noise

• An indication of the quality and “cleanliness” of local oscilator (VFO, or Crystal Master Oscillator)
• Denotes whether they introduce jitter or noise to the received signal
• Lower is better

Reciprocal Mixing Dynamic Range (RMDR)

• RMDR is tied to phase noise
• Impacted by how clean your oscillator is
• To measure, listen in 500hz bandwidth and measure how strong an injected signal has to be to raise the noise floor on the freq you are tuned to (1-3dB noise floor increase)
• This ratio is the RMDR
• Higher values are better - 110-115 dB
• As multiple signals get closer, the RMDR drops

​
Sherwood Engineering Receiver Comparison List - http://www.sherweng.com/table.html

Smitty KR6ZY joins as co-host this week as George is on vacation.  Smitty will be making a road trip to Xenia, OH to attend the 2018 Hamvention for the first time.  We talk about the preparations he’s undergoing to maximize his mobile Ham Radio experience as he drives cross country.  He talks to us about operating and charging a Bioenno Battery from his car as well as a speaker level audio mixer he’s designing to mix the audio of all of his radios.  Finally, we talk about Hamvention in general - including what to expect and what to look forward to. We look forward to seeing all of you at Hamvention in booth 3104 this year!
2018 Hamvention Discussion begins at 1:43:09

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/

Mark “Smitty Halibut” Smith - KR6ZY
Twitter - https://twitter.com/smittyhalibut
YouTube - https://www.youtube.com/user/SmittyHalibut

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/

D-Star Amateur Radio Satellite - http://www.d-star.one/

German Orbital Twitter Feed - https://twitter.com/germanorbital

CubeSat - http://www.cubesat.org/

Our conversation on the Phase 4 B Ground Station - http://hamradioworkbench.com/hrwb040-amsat-phase-4b-ground-station-design

MMDVM-HS-HAT Raspberry Pi Zero Hat - https://github.com/mathisschmieder/MMDVM_HS_Hat

MMDVM-HS-Dual-HAT Raspberry Pi Duplex Hat - https://github.com/phl0/MMDVM_HS_Dual_Hat

Mathis Schmieder DB9MAT - https://twitter.com/DB9MAT

Florian Wolters DF2ET - https://twitter.com/flo_0_

Smitty’s Speaker Level Audio Mixer Design - https://www.youtube.com/watch?v=Su6cF3tQ1cM

RD DPH3205 buck boost digital control Power Supply LCD display voltage converter - https://www.ebay.com/itm/292040615803?ul_noapp=true

Case for DPH3205 - https://www.ebay.com/itm/132427419443?ul_noapp=true

PI Zero USB Hub - Zero 4U USB Hub for Raspberry Pi Zero - https://www.adafruit.com/product/3298

Shutdown Pi via GPIO - https://www.raspberrypi.org/magpi/off-switch-raspberry-pi/

Pimoroni On/Off SHIM - https://shop.pimoroni.com/products/onoff-shim

Raspberry Pi Voltage Regulator - power a pi from 5V-16V!  - https://shop.pimoroni.com/products/wide-input-shim

IKEA Algot Shelving - https://www.ikea.com/ca/en/catalog/categories/departments/bedroom/11751/

Online Design Tool to test for Fit and Finish - https://www.draw.io/

Hackaday - To Ferrule or not to Ferrule - https://hackaday.com/2018/04/12/to-ferrule-or-not-to-ferrule/

Ferrules - https://www.amazon.com/gp/product/B01LCG52C6/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1

IWISS Hexagonal Ferrule / Radial Crimper - https://www.amazon.com/gp/product/B00H950AK4/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

Hamvention 2018 - http://hamvention.org/
List of Indoor Vendor - https://info.pcboard.ca/hamvention/hamvention2018-indoor/

List of Outdoor Vendors - https://info.pcboard.ca/hamvention/hamvention2018-outdoor/

​2018 Hamvention Forums - http://hamvention.org/wp-content/uploads/2018/03/2018-Forum-3-Day-Chart-v5.pdf

​Today we bring you a BayCon 2018 presentation from David Ranch KI6ZHD on Yaesu’s contribution to the Digital Voice radio market - Yaesu System Fusion.  David gives a brief overview of the mode and then talks about the state of Yaesu System Fusion in 2018. George and Jeremy spend a long time catching up on projects, many related to Digital Mobile Radio (DMR).  George gives a brief update on the Ham Radio Workbench Build projects for the 2018 season.
Yaesu System Fusion Content begins at 2:20:23

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/

Slides for David’s Presentation - http://www.bay-net.org/docs/ki6zhd-fusion-baycon2018.pdf

Goodbye Curtis K5CLM from the Everything Ham Radio podcast - http://www.everythinghamradio.com/

Cale Nelson K4CDN, founder of http://www.HamRadio360.com/ has relaunched his Modern Christian Men podcast - http://modernchristianmen.com/caleanewseason/

Uniden announces new “SDR” direct sampling scanner - SDS100 - https://www.uniden.com/newsroom/press-releases/sds100-coming-soon/

New Raspberry PI 3 B+ Launched - https://www.raspberrypi.org/products/raspberry-pi-3-model-b-plus/

Raspberry Pi UARTs - https://www.raspberrypi.org/documentation/configuration/uart.md

History Skunk Works Book - https://www.amazon.com/Skunk-Works-Personal-Memoir-Lockheed/dp/0316743003

History of AT&T Bell Labs - The Idea Factory
https://www.amazon.com/Idea-Factory-Great-American-Innovation/dp/0143122797/ref=sr_1_1?ie=UTF8&qid=1523073483&sr=8-1&keywords=the+idea+factory

Internet Labs D-STAR Hot Spot - the Digital Voice Access Point - http://www.dvapdongle.com/DV_Access_Point_Dongle/Home.html

Ultibots D300VS Plus Delta Style 3D Printer - https://www.ultibots.com/d300vs-plus-3d-printer-diy-kit

Anytone AT-868UV Amateur Friendly Dual Band DMR Radio - https://powerwerx.com/anytone-atd868uv-dmr-dual-band-handheld

SharRF OpenSpot Digital Voice (DMR, D-STAR, Yaesu System Fusion) - https://www.sharkrf.com/products/openspot/

GL.INET Mini Wireless Router with external antennas AR300M16-EXT - https://www.amazon.com/gp/product/B07794JRC5/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

GL.iNet AR300M16 Product Page - https://gl-inet.com/ar300m/
Portable USB-powered travel 5-port 10/100mbps network switch - https://www.amazon.com/gp/product/B074W5NW95/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1

Nextion Displays for MMDVM/Raspberry PI based HotSpots - https://nextion.itead.cc/
Demonstration of custom Nextion MMDVM displays - https://www.youtube.com/watch?v=fYXADw9a6WU&t=375s

2014 Counterfit FTDI articles - https://hackaday.com/2014/10/24/ftdi-screws-up-backs-down/ https://hackaday.com/2014/10/22/watch-that-windows-update-ftdi-drivers-are-killing-fake-chips/

DMR Automatic calibration for SharkRF OpenSpot - https://www.youtube.com/watch?v=j3LEsYw-cig

Download DMR contacts and Talk Groups for several different radios - http://amateurradio.digital/

New Codeplug Management software for various Chinese DMR Radios - http://n0gsg.com/contact-manager/

Wago Wire Lever Nuts - https://www.amazon.com/Wago-Lever-Nut-Assortment-Pocket-Pack/dp/B01N0LRTXZ/ref=sr_1_3?ie=UTF8&qid=1523081377&sr=8-3&keywords=wago+lever+nuts
https://www.amazon.com/Wago-221-412-221-413-Lever-Nut-Assortment/dp/B01GVS7ZES/ref=sr_1_4?ie=UTF8&qid=1523081377&sr=8-4&keywords=wago+lever+nuts
https://www.amazon.com/Wago-221-412-221-413-221-415-Assortment/dp/B018MGMFDI/ref=pd_sbs_60_4?_encoding=UTF8&pd_rd_i=B018MGMFDI&pd_rd_r=11XH628EY8XAKM61TSZ9&pd_rd_w=EZ1Lt&pd_rd_wg=e6GeM&psc=1&refRID=11XH628EY8XAKM61TSZ9

​AvE on YouTube - https://www.youtube.com/user/arduinoversusevil

We finish the second half of our DMR Basics conversation with Kirk K6RCT.  In this episode we talk about DMR networks such as Brandmeister and cBridges.  We also discuss the various options for equipment available to hams from Motorola to the venerable Tytera MD-380.  Jeremy is also on the road from the 2018 Midwest RepRap Festival, (think Hamvention but for 3D Printing).

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/

Kirk Smith - K6RCT
Twitter - https://twitter.com/k6rct
DMR of Anarchy Network - http://www.dmrofanarchy.org/

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/

Everything Ham Radio Podcast - http://www.everythinghamradio.com/

Midwest RepRap Festival in a nutshell - https://twitter.com/search?q=%23MRRF2018

Ultibots D300VS Delta Style 3D Printer - https://www.ultibots.com/d300vs-3d-printer-diy-kit/

Special thanks for to Noman SnoLabs Filament - https://snolabs.com/

Special thanks to Michael Hackney, the 3D Printer Whisperer - http://www.sublimelayers.com/

Take your SharkRF OpenSpot on the road with a GL.Inet Travel Router -https://www.amazon.com/gp/product/B01I92T754/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=A364119SDJA4QG

SharkRF OpenSpot Hotspot - http://www.grapevineamateurradio.com/store/?model_number=Openspot1

DV Mega UHF Hotspot for Raspberry PI - http://www.grapevineamateurradio.com/store/?model_number=DVmega_UHF

ZumSpot UHF Hotspot with Raspberry Pi Zero W - https://www.hamradio.com/detail.cfm?pid=H0-015993

Jonathan Naylor talk on MMDVM - https://www.youtube.com/watch?v=xDLogbi8R7w

MJLorton on how to get Motorola CPS Software - https://youtu.be/Gs0qi5p--CA?t=3m21s

MD-380 Tools Installation via Windows Applications - http://www.miklor.com/DMR/DMR-Toolz108.php

Installing MD-380 Tools using VIrtual Box Images - https://youtu.be/8F8G_Cqayrs

Setting up an OpenSpot - https://www.youtube.com/watch?v=ON1HdC_RbcA

DMR Marc - http://www.dmr-marc.net/

cBridge - https://rayfield.net/c-bridge

Brandmeister - https://brandmeister.network/

MD-380 Hacked Firmware MD380 Tools - http://md380.tools/

Comparison of Import DMR Radio Features - https://radiosification.blogspot.com/2017/11/comparison-of-dmr-radios.html

Register for a DMR ID - https://www.dmr-marc.net/cgi-bin/trbo-database/register.cgi

DMR for Dummies! - http://www.dmrfordummies.com/

Brandmeister Network Hoseline - https://hose.brandmeister.network/

Motorola - XPR 7550 - https://www.motorolasolutions.com/en_us/products/two-way-radios/mototrbo/portable-radios/xpr-7000e-series.html#tabproductinfo

Hytera PD682 - https://www.gigaparts.com/hytera-pd682-dmr-handheld-radio.html

Kenwood DMR Radios - https://comms.kenwood.com/en/products/list.php?func=dmr

Grapevine Amateur Radios - http://www.grapevineamateurradio.com/store/?submenuid=51&submenuname=Radios

Connect Systems DMR Radios - http://www.connectsystems.com/amateur.html

Tytera MD-9600 - http://www.grapevineamateurradio.com/store/tyt-md9600-dual-band-vhfuhf-dmr-mobile-radio/

Ailunce HD-1 - http://www.grapevineamateurradio.com/store/?model_number=HD-1

Tytera MD-380 - https://www.mtcradio.com/tyt-dmr-md-380-uhf-400-480mhz-digital-ht-with-programming-cable-software/

RFinder Android Radio H1B - http://www.grapevineamateurradio.com/store/?model_number=H1B

Video on Tytera MD-9600 DMR Mobile Radio Version 3 - https://www.youtube.com/watch?v=159P1NI_EvQ

To mark the launch of the BayNet Brandmeister Talk Group 31075, Kirk Smith K6RCT (Operator of the K6DOA DMR Repeater in SLO) joins us to talk Digital Mobile Radio, or DMR.  DMR is a digital radio standard developed for use in commercial radio applications.  Because of its commercial background, there are several operating and technological concepts that are unique to DMR that differ from what we are used to in other Amateur Digital Voice modes such as DSTAR and Yaesu System Fusion.  In part one of this two part series, Kirk walks us through these fundamental DMR terms and concepts. In part two, we will talk about Brandmeister, cBridges topics and radio gear.

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/

Kirk Smith - K6RCT
Twitter - https://twitter.com/k6rct
DMR of Anarchy Network - http://www.dmrofanarchy.org/

EEVblog - Weller vs Hakko Comparison - https://www.youtube.com/watch?v=tlKg6rSMPEs

KF7IJZ’s Demonstration of what happens when you charge and discharge a battery at the same time (Kirchoff’s Current Law) - https://youtu.be/uA_WEykbGE4

Anytone TERMIN-8R - https://anytonetech.com/TERMN-8R

Anytone AT-868UV Dual Band DMR Handheld Radio - http://www.grapevineamateurradio.com/store/?model_number=AT-868UV

Remote Repeater Site Monitoring Episode - http://hamradioworkbench.com/hrwb017-remote-repeater-site-monitoring

MTR-2000 Repeater - https://www.motorolasolutions.com/en_xl/products/two-way-radios-business/infrastructure/base-stations-and-repeaters/mtr2000.html#tabproductinfo
http://www.repeater-builder.com/motorola/mtr2k/mtr-index.html

Connect Systems DMR Radios - http://www.connectsystems.com/amateur.html

DMR Marc - http://www.dmr-marc.net/

cBridge - https://rayfield.net/c-bridge

Brandmeister - https://brandmeister.network/

MD-380 Hacked Firmware MD380 Tools - http://md380.tools/

Comparison of Import DMR Radio Features - https://radiosification.blogspot.com/2017/11/comparison-of-dmr-radios.html

Register for a DMR ID - https://www.dmr-marc.net/cgi-bin/trbo-database/register.cgi

DMR for Dummies! - http://www.dmrfordummies.com/

​Brandmeister Network Hoseline (listen to traffic online)- https://hose.brandmeister.network/

John Jacobs, host of the Field Radio Podcast, returns join in a discussion of basic DIY HF antennas.  We talk some of the most common and easiest to build antennas such as Dipoles as well as how to build them and where to scrounge for materials!  We also talk about our plans for our respective shows in light of Cale’s recent archiving of Ham Radio 360. We share the details of the Digilent Analog Discovery 2 package (and discount code!) with the audience!

Follow us on Twitter - https://twitter.com/hamworkbench
Contact us! - http://hamradioworkbench.com/contact
New FaceBook Group - https://www.facebook.com/groups/hamradioworkbench/

John Jacobs W7DBO, host of the Field Radio Podcast
Field Radio Podcast - http://fieldradiopodcast.org/
Field Radio Podcast YouTube - http://www.youtube.com/c/FieldRadioPodcast
Field Radio Podcast Twitter - https://twitter.com/FieldRadioPod

The Ham Radio 360 Archive - http://hamradio360.com/

Keep up with Cale Nelson K4CDN at the 6 Arrows Radio Network - http://6arn.com/

The EXCLUSIVE Digilent Ham Radio Workbench Analog Discovery 2 Package - https://store.digilentinc.com/ham-radio-workbench-bundle/
Use code HamRadioWorkbench2018 to save $100 (view cart to add code before checking out)

The new BayNet DMR Talkgroup is 31075

The new Yaesu FT-818 (the next generation FT-817 QRP Radio) - https://www.universal-radio.com/catalog/hamhf/0818.html

KF7IJZ Demonstrates Kirchoff’s Current Law as it applies to portable power boxes for charging and discharging at the same time - https://youtu.be/uA_WEykbGE4

Powerwerx Panel Mounts - https://powerwerx.com/panel-mounts
Julian - Survival Tech Nord - http://oh8stn.org/ https://www.youtube.com/user/SurvivalTechEU

Stuart KB1HQS - http://kb1hqs.com/ https://www.youtube.com/channel/UCSkFZt2bfUZ-w3xNxUANFVw

KF7IJZ’s ICOM IC-7300 Voice Keyer Video - https://www.youtube.com/watch?v=DqCWsfxDHJw

Comms to Go Portable Power Solutions - http://commstogo.com/
HF Dipole antenna Calculator - http://www.kwarc.org/ant-calc.html (or divide your frequency by 468 as a starting point for a half-wave HF dipole)

Where does 468 come from? by KB6NU - http://www.kb6nu.com/468-ham-radios-magic-number/

DIY End Fed Antenna - http://www.earchi.org/proj_homebrew.html

Bell Labs demonstration on Impedance - https://www.youtube.com/watch?v=DovunOxlY1k

RigExpert Antenna Analyzers - https://rigexpert.com/antenna-analyzers-comparison-table/

DIY Dipole Center Insulator from W6LG - https://www.youtube.com/watch?v=E5OqrvyjTgs

RF-Parts for RF connectors - https://www.rfparts.com/

The Wireman for high-quality antenna wire - https://www.thewireman.com/antennap.html

ARRL’s The Doctor Is In Podcast on Antenna Wire -http://www.arrl.org/files/file/DoctorPodcast/2018/January_18_2018_-_Antenna_Wire.mp3

ARRL’s The Doctor Is In Podcast on End Fed Antennas - http://www.arrl.org/files/file/DoctorPodcast/April%2027%20-%20End%20Fed%20Antennas.mp3

ARRL’s The Doctor Is In Podcast on Feed Line -http://www.arrl.org/files/file/DoctorPodcast/November%2023%202017%20-%20Coax%20vs%20Balanced%20Lines.mp3

NVIS Antenna Build Example - https://static.dxengineering.com/global/images/instructions/WP-NVIS-Rev3.pdf

Mag Loop - http://w8mrc.com/docs/presentations/Magnetic%20Loop.pdf

Making a high quality “Ugly” Balun - http://www.hamuniverse.com/balun.html

Knot Tying is an invaluable skill for outside antenna work

Knot Books
https://www.amazon.com/KLUTZ-Book-of-Knots-Toy/dp/1338106422/ref=sr_1_15?ie=UTF8&qid=1519540475&sr=8-15&keywords=knot+book
https://www.amazon.com/Tying-Pro-Knot-Cards-practice-carabiner/dp/0922273294/ref=sr_1_1?ie=UTF8&qid=1519540512&sr=8-1&keywords=knot+book

W4EDF erecting a 3 painter’s pole multi-band dipole by himself - https://www.youtube.com/watch?v=yM6RGiFkdMM

Small Loop Calculator - http://www.66pacific.com/calculators/small-transmitting-loop-antenna-calculator.aspx

​VK3YE DIY Small 40M Magnetic Loop - https://www.youtube.com/watch?v=Cv_RnLpZ9gw