Saturday, April 4, 2026
End of the Line.
The new face of the Ham Radio Operator
Friday, April 3, 2026
Consistent Performance with the new PNP CW Transmitter
Let me put in a context easily understood... You get dates with good looking YLs all the time not just one time with one good looking YL.
Thursday, April 2, 2026
PNP CW QRP Rig now on 40M
The home-grown rig has been moved to 40M on 7013 kHz and gets 12 Volts PTP out of the W3NQN LPF. That is 360 milliwatts. At 7 AM my signal was heard in the 600-to-800-mile range.
I have ordered "rocks" for 7030 and 7055 kHz. (The original MC1496 DCR was built for 40M.) The additional power output can be traced to the crystal itself and that the circuit components in the driver stage favor 40M versus 20M. The emitter bypass cap in the driver plays a big part in the frequency spread.
Them that know, survive. Of note do you believe only a couple of more weeks in the Iran war. Reminds me of when I went to Vietnam... like 10 years. Survival depends on trusting your gut and the actions you personally take.
73's
Pete N6QW
Wednesday, April 1, 2026
PNP Transistor CW Transmitter... SUCCESS!
Productive day yesterday as I came up with a good Colpitts type Oscillator circuit and with some more biasing adjustments we are getting 9.4 Volts PTP at the output side of the W3NQN Filter.
Tuesday, March 31, 2026
I turned on my soldering iron!
You ask why did you turn on the iron when ham radio is not about building things. It is all about contests, operating and watching You Tube Videos of YL's making POTA contacts.
Just because is my answer as I want to explore circuits that may be obscure or not very often used. It is like a technical challenge thing for me. Maybe the challenge for most hams today is staying awake during contests and operating.
But for me right now.... I want to revisit using PNP Transistors in a CW transmitter. Yes, Sony has identified that NPN transistors are better for their products. But unlike the ARRL and their proposed CSI grading system, PNP transistors can work in RF circuits without fear of getting flat feet, jock itch, dandruff, toe fungus or an STD. The key to this project is no cost and use what is in the junk box. Brent Crude today > $113 a barrel.
PNP CW Transmitter
Monday, March 30, 2026
So, how are you doing?
The answer to that question is of course it depends. If you are in the bottom 90% of Americans, the answer maybe not so well.
Sunday, March 29, 2026
The N6QW Blog Demographics
A YL Ham who went from no License to Extra Class in a short period of time has a very active You Tube channel with over 8K followers and over 50 videos in just a few months of 2026. To this YL ham, a tip of the cap and well done. Her videos individually get thousands of views.
Friday, March 27, 2026
One Half the Peace Sign Salute to the ARRL CSI
Thursday, March 26, 2026
Build, Test, Enjoy, Ignore the ARRL
Something for the notebook. In the course of things, displaying 1/2 the Peace Sign to the ARRL CSI.
Wednesday, March 25, 2026
Who is in Charge?
We live in the era of poor service. Count how many times a week where you have an expectation of service (and paying dearly for same) only to experience the short shrift.
Tuesday, March 24, 2026
More Breaking News about the ARRL CSI
Some have asked why the Brouhaha about the Clean Signal Initiative being touted by the ARRL. That is a genuine question that needs a full investigation.
Monday, March 23, 2026
Prepper #2 ~ The Antenna
OK Preppers, The Most Critical Piece = The Antenna! Tattoo that on a significant part of your anatomy. Your radio no matter how expensive has to have a good antenna for maximum performance.
DXE-TFK46-HD ($300)
Sunday, March 22, 2026
We Interrupt this program for Breaking News
The Original intent of today's post was to cover Prepper Antennas. You will see that in a couple of days.
๐ก What “Predistortion” Means in Apache Labs Radios
PureSignal (developed by Warren Pratt, NR0V) is an adaptive predistortion system built into the OpenHPSDR/Thetis ecosystem.
๐ What it does
- Samples your actual RF output via a sampler or coupler
- Measures distortion products (IMD)
- Applies an inverse polynomial correction in real time
- Produces an extremely linear transmit signal
- Cleaner SSB, AM, and digital modes
- Dramatically reduced splatter on adjacent frequencies
- Ideal for driving solid‑state amps, which are more IMD‑sensitive
- Makes your signal look “lab‑grade” on panadapters
๐ Apache Labs Models That Support PureSignal Predistortion
Below are the major models known for PureSignal capability, with notes from the search results.
ANAN‑10E
- Proven PureSignal performer
- Frequently used in demonstrations of predistortion effectiveness
- Example setup: ANAN‑10E + HF Packer Amp + Ameritron AL‑811 using PureSignal sampling
- Modern successor platform
- 16‑bit ADC, 100+ dB dynamic range
- Thetis‑compatible
- Designed for high‑performance TX/RX with PureSignal support
- Pre‑order model from Apache Labs
- Next‑generation architecture with massive FPGA horsepower
- Designed for extreme linearity and high‑power operation
- Ideal for PureSignal with built‑in sampling ports on some amps
- Pre‑order deposit model from ML&S
A real‑world example from WA6NUT shows:
- ANAN‑10E running PureSignal
- Output sampled via directional coupler
- Amplified chain (HF Packer → AL‑811)
- Before/after panadapter images show dramatic IMD reduction
๐งฐ Why Apache Labs + PureSignal Is Unique
- Clean transmit audio
- High dynamic range
- Open‑architecture SDR
- Ability to integrate external amps cleanly
- Experimentation with DSP and waveform shaping
The CSI rating will likely impact home grown rigs and then the ARRL's unstated goal of 100% operating and contests will be achieved. The ARRL argument boils down to a Lab Grade SDR in every ham shack.
Them that know, survive.
73's
Pete N6QW
End of the Line.
Life is too short and the Blog of late has consumed a lot of my energy and time. But no more. Thanks for riding along and hopefully we will ...
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Cruise through the lower part of the ham bands bands and what do you hear? Well, FT-8 and CW. Often you will not hear any SSB stations yet g...
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Shown below is the Block Diagram for the 20M PNP SSB Transceiver steered in the Transmit Mode . The components shown in the dotted block ar...
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Making some decisions is not as simple as flipping a coin and acquiescing to some basic paradigm. If it's heads, I will do this and if t...














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