QSO TODAY AMATEUR RADIO PODCAST
  • Podcasts
    • Eric's Favorite Podcasts
    • QSO Today Podcast Archive >
      • Sortable Podcast List
      • Downloadable Episodes CSV File
      • Complete List of Podcasts - Libsyn
      • iTunes List of QSO Today Episodes
      • Download Podcast List as PDF
  • Blog
  • Transcripts
  • Sponsors
    • icom
    • Sotabeams
  • About
    • Contact
    • Apple Reviews
    • Whitelist
  • Donate
  • Subscribe
  • Learn to Podcast

G0UPL

12/21/2016

3 Comments

 

Episode 125 - Hans Summers - G0UPL

Picture
As a 2009 QRP ARCI Hall of Fame inductee - Hans Summers, G0UPL,  is an electronic experimenter and amateur radio innovator extraordinaire.  Hans pays careful attention to compact and minimal parts count to achieve the design goals of his homebrew projects. Hans is the owner of QRP Labs joins Eric, 4Z1UG, in a conversation about QRSS slow data transmissions, high altitude balloon transmitters, and shares his ham radio and electronic builder story.

Show Notes
Listen to Podcast
 Hans Summers' Links:

  • http://www.hanssummers.com - Hans' lab notebook on all of his projects
  • QRP Labs - Hans' kit business with web store
Early beginnigs:
  • Started electronics Age 6
  • Father was a home brewer in tube/valve receivers
  • Grandfather was electrician on the British Railways

Education: Imperial College, London,  Physics Degree

Imperial College Amateur Radio Club

RSGB - Radio Society of Great Britain

SPRAT - Official magazine of the G-QRP group

​First License: March 1994, Age 23, G0UPL

Hans' Z-80 computer Project

Hans' Nixie Tube project - uses 10 neon digits inside a glass tube

First Rig: All home brew -
  • One valve ECL82 triode-pentode transmitter on 80 meters
  • Receiver: Tayloe Mixer - now the popular front end of all SDR, followed by a Polyphase network
  • Frequency Counter
  • Antenna tuning unit
Pat Hawker, G3VA (SK) - monthly article in Radcom “Technical Topics”.  All 50 years of his Technical Topic articles are avalilable from Amazon. 

Current Rig:
QRP Labs WSPR - QRSS/WSPR mode, 6 band transmitter kit.

Career:  software design for financial institutions

G-QRP Club - founded by George Dobbs

Favorite construction methods:
  • Matrix boards (perf board), no copper tracks on one side.  
  • For RF projects: dead or ugly bug construction on single or double sided copper circuit board
  • Decoupling capacitor for tie point
  • Hans' never does a PCB project for a one off project
Hans' test equipment:
  • Digital Volt-Ohm meter
  • Frequency counter - Racal 9911, Heathkit Frequency Counter with Nixie tube readout
  • Analog oscilloscope with digital frequency readout
  • Spectrum analyzer Advantest 3361 with tracking generator
  • Digital storage oscilloscope, Owon 3102A
  • Signal Generator/VFO

SA-602, NE602 Mixer Chip - designed as a 2nd IF mixer for early cellphones

Hans' spectrum analyzer project  

QRSS - very very slow CW transmissions that takes advantage of a low SNR to copy CW messages with very low power. Often used for propagation beacons.  Modes derived from QRSS is FSKCW and JT65 from

Joe Taylor, K1JT - creator of JT65 and WSPRnet

CW signal to noise ratio

QRSS Software: Argo , Spectrum Lab

WSPRnet

Hans' QRSS Rigs use a microprocessor to do the message encoding.  

AVR Microprocessor Chip

OCXO -  temperature controlled crystal oscillator - only kit built OCXO in the World.

AT cut crystal

Ashhar Farhan VU2ESE - creator of the BitX transceiver

Bitx20 Yahoo Group

Most exciting - huge availability of components and information

VE3KCL balloon launches using WSPR - the tracking logs for 16 balloon flights are on this website behind the QRP Labs website.

Advice to new or returning hams: Build something


The RSS Feed for all audio content from QSO today is available from here. 
​
​Please join our QSO Today community by pressing the button below. It is the best way to suggest guests and topics, and provide feedback to Eric, 4Z1UG.
Join the QSO Today Community
Picture
Hans' Z-80 Computer
Picture
Nixie Tube Clock
Picture
QRP Labs U3S 6 Band WSPR/QRSS
​Transmitter Kit
Picture
G0UPL High Altitude Balloon
​WSPR Transmitter with GPS
3 Comments
Scott Smith
1/3/2017 07:03:03 pm

Wow, another fantastic podcast. Very interesting stuff.

Reply
Trygve Sjothun
4/10/2018 06:10:56 am

A great podcast, I have listened to it a few times so far. Hans is without any doubt a trailblazer in the hobby. Excellent stuff.

Reply
Takeru
1/29/2021 10:28:19 pm

Hello this is Takeru from Japan. I am trying to contact my friend Hans Summers. I once contacted him but lost past messages. Please ask him to mail me to my mail

Reply



Leave a Reply.

    Picture

    Sponsors

    Picture
    Picture
    Picture
    Picture
    My Amazon Link
    Picture
    #commission earned

    Listen on: 

    RSS Feed

    Picture
    Picture
    Picture
    Picture
    Picture
    Picture
    Picture
    Picture
    Picture

    Podcast Archives

    February 2023
    January 2023
    December 2022
    November 2022
    October 2022
    September 2022
    August 2022
    July 2022
    June 2022
    May 2022
    April 2022
    March 2022
    February 2022
    January 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    August 2019
    July 2019
    June 2019
    May 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    September 2018
    August 2018
    July 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    August 2017
    July 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    December 2016
    November 2016
    October 2016
    September 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    March 2016
    February 2016
    January 2016
    December 2015
    November 2015
    October 2015
    September 2015
    August 2015
    July 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    January 2015
    December 2014
    November 2014
    October 2014
    September 2014
    August 2014
    July 2014

    Categories

    All
    10 GHz
    160 Meters
    3D Printing
    Allstar Link
    AM
    Amateur Radio Testing
    Amateur Television
    Amplifiers
    AMSAT
    Antennas
    Antique Telegraph Keys And Bugs
    Apps
    APRS
    Arduino
    AREDN
    ARES
    ARISS
    ARRL
    Art
    Audio Processing
    Australia
    Aviation
    Ballooning
    Balun
    Beacons
    BITX
    Blind
    Blog
    Boat Anchors
    Boy Scouts
    Broadcast Radio
    CERT
    Collins 74A4
    Collins KWM2
    Contesting
    CQ World Wide
    Crystal Set
    CW
    Dayton Hamvention
    DDS Direct Digital Synthesizer
    Dead Bug Construction Method
    Digital Television
    DMR
    DMR Hot Spot
    DMR Hot-spot
    DMR Marc
    Double Side Band
    Drake TR4
    D-Star
    DX
    DXCC Honor Roll
    DXpedition
    Echolink
    Elecraft
    Elecraft K3
    Elecraft KX3
    Electronic Building Techniques
    Electronic Noise And Interference
    Electronic Tools
    EME Moon Bounce
    Emergency Comm
    Emergency Power
    Enigma
    Ex Military Radio
    Ex-military Radio
    FCC
    Fflghtaware
    FlexRadio
    Flow State
    FM And Repeaters
    FreeDV HF Digital Voice
    FSQ
    FT 8
    FT-8
    G5RV
    Hall Of Fame
    Hamfest
    HamSCI
    Heathkit
    Heathkit Hw8
    Hexbeam Antenna
    HF Digital Modes
    HOA
    Home Brew
    IARU
    Icom
    International Hams
    International Space Station
    Ionosphere
    IOTA Islands On The Air
    IOTA - Islands On The Air
    IRLP
    JOTA
    JS8Call
    JT4
    Kenwood TS 2000
    Kenwood TS-2000
    Kenwood TS440
    Kit Building
    KX2
    Leadership
    LoRaWAN
    M17 Project
    Magnetic Loop Antenna
    Maker Faire
    Manhattan Construction
    Manpack Radio
    Maritime Mobile
    Mesh Networking
    Metal Fabrication
    Meteor Scatter
    MFSK
    Microwave
    Microwave Roving
    Military Cipher Machines
    MMDVM
    Morse Code
    Museum
    Music
    NASA
    Nets
    New Hams
    NTS - National Traffic System
    Operating Practice
    Packet Radio
    PACTOR
    Parks On The Air
    Portable Operation
    POTA
    Propagation
    Public Safety
    QCWA
    QRO
    QRP
    QRPP
    R-390
    Races
    Radar
    Radio Astronomy
    Raspberry Pi
    Remote Control
    Remote Hams
    Repeaters And Remote Base Stations
    RTTY
    Russ Farnsworth Morse Code Method
    Satellites
    SDR
    Short Wave Listening
    Single Operator Two Radio
    Single Side Band
    Slow Scan Television
    SO2R
    Software Defined Radio
    Solar Power
    SOTA
    Space Shuttle
    Special Event Station
    Spectrum Monitor
    Spy Radios
    SSB
    System Fusion
    TAPR Tucson Amateur Packet Radio
    TAPR - Tucson Amateur Packet Radio
    Technology Development
    Test Equipment
    Top Band
    UBITX
    Ugly Construction Method
    UHF
    Unique Contributions
    US Army MARS
    Vacuum Tube Radio
    VHF
    Video
    Vintage Gear
    WinLink
    WSPRnet
    WWFF
    Yaesu FT-840
    Youth
    YouTube
    You Tube

Proudly powered by Weebly