Showing posts with label 20 meters. Show all posts
Showing posts with label 20 meters. Show all posts
Saturday, November 16, 2024

Video -- Mythbuster II Rig Gets a Front Panel -- Circuit Build Almost Done

›
Yesterday I built a front panel for my Mythbuster II 20 meter SSB transceiver.  I used 1/8 inch plywood available from Amazon.  I cut holes ...
1 comment:
Friday, November 8, 2024

Video Update on the Mythbuster II 20 meter SSB Transceiver

›
I have added the transmit circuitry. I described building practices. We listen to the receiver again. I talk about plans for transmit/rec...
5 comments:
Wednesday, October 30, 2024

Bill N2CQR Builds Yet Another Mythbuster Transceiver

›
  This one is for 20 meters (no need for 75) and will go to the Dominican Republic. 6 crystal filter at 5.2 MHz. VFO from old Yaesu FT-101 ...
7 comments:
Monday, September 30, 2024

Homebrew Receiver -- AG5VG's 20 Meter "Mythbuster" Receiver

›
Michael has the receiver done and is wisely heeding Farhan's advice about pausing to enjoy the homebrew sounds.   I was pleased to see s...
Wednesday, February 14, 2024

We Get Mail! Red Poster? Really a Tapestry from Ecuador

›
Listener Tobias was laid up yesterday, following the extraction of wisdom teeth. (This seems like an appropriate follow-up to our talk in So...
1 comment:
Wednesday, February 7, 2024

Videos from Mike AG5VG -- His Homebrew BITX Rigs

›
Here are two great videos from Mike AG5VG showing his two homebrew receivers in action.  (The transmitter portions of Farhan's circuit w...
5 comments:
Sunday, January 15, 2023

Working Vienna Wireless Society member (KA4CDN) from Hispaniola

›
We'll be heading back to the States soon and I was feeling guilty about  not having worked anyone from my home club (the Vienna Wireless...
Tuesday, September 6, 2022

Michael AG5VG Builds a Sub-Harmonic Receiver and Moves it to Higher Bands

›
Michael AG5VG built a Sub-Harmonic Direct Conversion receiver.   But then he took it a step further and moved it up from the 80/40 meter ver...
Saturday, July 16, 2022

Hex DX! First Long-Haul Contact with the New Hex Beam - VK4KA on 20 SSB

›
This morning at around 1345 UTC I had the chance to try out my new Hex beam on some "down under" DX.  9,548 miles, 15,222 km    Th...
1 comment:
Wednesday, May 25, 2022

HF Bandsweep with the Hammarlund HQ-100 (video)

›
It has been a while since we last did a bandsweep.  Too long.  Here is one using my recently fixed up Hammarlund HQ-100.  Repair details are...
Saturday, August 7, 2021

Mythbuster Video #13 -- RF Power Amplifier, and Relay Switching Plan

›
In this episode we enter into the most fraught part of the construction project: the production of RF power. This is where amplifiers stub...
2 comments:
Friday, July 16, 2021

Mythbuster Video #6 -- On to 20 Meters (But With Bandpass Filter Woes). Please help solve the mystery!

›
Here's how I started with the Elsie program. Note that to get a 50 ohm match on both ends it needs an impractically low value for the co...
10 comments:
Thursday, June 17, 2021

The Stubborn Myth about USB and LSB

›
It  has been repeated so often and for so long that many of us have come to believe it.  I myself believed it for a while.   Like many myths...
7 comments:
Sunday, May 30, 2021

QRP - QRP Contact from Dominican Republic

›
It took some brass pounding on my homebrew key, but on May 28, 2021 I made a real QSO from the eastern tip of the island of Hispaniola.  KJ4...
1 comment:
Friday, May 21, 2021

AA7EE's Amazing Homebrew SST QRP Transceiver

›
  Look at that rig.  It is truly a thing of beauty.     I was very pleased to see Dave AA7EE's comment on my SST rig.  This caused me to...
1 comment: