KF4DJQ Amateur Radio Blog of Blogs

Sunday, March 22, 2015

I added a solar data and propagation panel from N0NBH earlier in the week, my decision to add this panel was triggered by the CME on Tuesday / Wednesday and the subsequent drop out of HF bands,

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Radio Blog List

What's up on aprs.fi

aprs.fi for Android is here! - For 10 years, every time a new version of the aprs.fi iPhone app came out, the first question was always the same: "when can we have it on Android?" For ...
13 hours ago
Roger G3XBM's Amateur Radio Blog

Each to their own - Yesterday, I chanced upon a Facebook page of a radio shack. The guy had all manner of radios and linears. I would guess there was over $30000 worth of k...
17 hours ago
Q R P e r

Summer in the UK: Please Put These Callsigns in Your HamAlert! - by Thomas (K4SWL) I will be spending much of the summer in the United Kingdom, and I plan to be quite active with portable radio. If all goes according to ...
21 hours ago
PE4BAS Amateur Radio Weblog

#6m ZL1RS received? - Spot on 075745 GMT My initial thought was that this has to be a pirate. There was no evidence of any propagation in the direction of New Zealand here...
2 days ago
marxy's musing on technology

Sunday FreeDV net - very interesting discussion - A terrific net this morning in south east Australia. Amazingly there has been mobile FreeDV activity during the week! Most people are now on 2.3.1 which re...
3 days ago
PA0O radio-blog

Stop that bloody war! - Put an end to that terrible war!
6 days ago
Ham Radio

ADSB DX? - Greetings to one and all! Its been a while so I hope you are all doing well and enjoying the season so far. I have been busy working, having fun with ...
1 week ago
Indiana QRP

Tough Sledding! - US-4183 Teal Marsh Headed out to Atterbury again on May 7th in hopes of better conditions, and more contacts. Did not work out that way though. Took m...
5 weeks ago
Dave Richards AA7EE

A PTO Kit From Ken WA4MNT at QRPBuilder - The Soldersmoke Direct Conversion Receiver was the first time I had ever built anything with a permeability tuned oscillator (PTO for short). I had never p...
5 weeks ago
W2LJ's Blog - QRP - Do More With Less.

QRPTTF a bust? - Until Paul NA5N starts posting some claimed scores it will be difficult to definitively gauge participation in QRPTTF 2026. However, if chatter on the ...
1 month ago
LA3ZA Radio Amateur Blog

Why didn't I come up with this simple upgrade to the QMX+? - This is an upgrade to the QMX+ which is so simple that I keep saying to myself: why did it take so long for someone to come up with it? It consists only o...
1 month ago
IK1ZYW Labs

Spelling and calling IC part names - The idea behind this post started after one person on X asked how people pronounced the 80486 processor: 80-4-8-6 or 80-486? Then I realised that in ever...
1 month ago
CQ CQ CQ de W0VLZ

W0VLZ Shack - Ham radio supports a lot of different facets of interest. One interest of mine happens to be radio technology and the way it has changed ham radio over t...
1 month ago
A ROMANIAN RADIOAMATEUR'S BLOG

Voice Activated Squelch - From time to time I use to set the dial of my HF radio to some frequencies where voice QSO’s are expected - like local nets or WWF/SOTA/POTA. The nois...
2 months ago
PA3GNZ's blog about..........

FT8 met W11 computer, oplossing bij geen ontvangst - Het overkomt mij zo nu en dan dat ik WSJT-X opstart voor o.a. FT8. In de waterval zie ik ontvangst maar geen info in het rechterscherm. Na het e.e.a. ge...
2 months ago
M1KTA's QRP ham radio blog

Translation ear buds - On recent C5 trip I travelled via Morocco and despite speaking a bit of Arabic thought it might be interesting to try a pair of the new translation earbuds...
2 months ago
G4VXE.COM

After over ten years....I'm back! - Somehow I got out of the habit of blogging - life got in the way, I guess. When my logging program, Cloudlog started to offer a Station Diary feature, I re...
2 months ago
N4KGL QRP

Registration is Open for the April 4th, 2026 RaDAR Rally - The RaDAR Rally is an exciting test of your portable operating skills on the first Saturday of April and November. Make five contacts and move! See www.rad...
3 months ago
PA1B's QRPp Blog

99 QSO's with the Ten-Tec on 14 MHz - I got the Ten-Tec 1320 for *20 meters* from a fellow HAM, who ended the hobby. *Tnx Henk.* I used the Ten-Tec 1320 in *CW *Contest QSO's. Look at the *Ta...
3 months ago
WA0UWH - Electronics & HAM Radio Blog

3D Printing Filament Spools - Today I have been working on my relatively new 3D Printer; a Creality K2 Plus. I have started printing filament spools to be used with Filament Refills. ...
4 months ago
G0KYA's Amateur Radio Blog

Updated HF Propagation Charts from the UK - I have just updated my short-path propagation charts from the UK with the latest predicted smoothed sunspot numbers. It takes about half a day to do - it...
4 months ago
M1AVV

Frodsham Hill - Just a few photos from a visit to Frodsham Hill last month. Some antennas on the hotel
4 months ago
Ham Radio Ireland - EI2KC

Great conditions on 10 metres for the CQWW CW contest 2025 - I had no intention of making a serious effort in this year's CQWW CW contest, held this past weekend. I had some other commitments, so was not going to b...
6 months ago
G4FRE BLOG

BK 1856D Frequency counter repair - I have a BK 1856d 3.5GHz freuency counter which was bought in the USA 20 years ago. It has been languishing in the wardrobe for 5 years as it wouldnt wo...
8 months ago
Advancing Ham Radio.. different ideas

The ARRL needs to exit publishing - In my opinion the ARRL needs to exit publishing, and come up with a new game. At least their books. They have already done this at least with their magazin...
9 months ago
Popcorn QRP

A Curious 9 MHz Crystal from Mouser Electronics - Just a quick post to share info about a good 9 MHz crystal sold by Mouser Electronics. I last purchased batches of crystals for xtal IF filters back in 2...
1 year ago
The MØTZO Blog

Gridfinity 3D Print - I don’t think I’ve said on here before, but I have a Bambu Labs A1 Mini (with AMS Lite) 3D Printer.This weekend I’ve been printing an Interlocking Gridfini...
1 year ago
ON5ZO - OQ5M

Enter 2025 - I think blogging is out. At least for me. I didn’t post anything new last year (2024). Chances are not much will happen here in 2025 either. I still really...
1 year ago
2E0SQL

2024 Wrap up - It has been a while since I last posted on my website, but with 2025 on the horizon, I thought now was the perfect time to make a comeback. It is fair to...
1 year ago
Steve G1KQH's Amateur Radio Blog " The Font of all knowledge"

zBitx from HF Signals - It was only a few years ago Ashhar Farhan's small company HF Signals from India launched the Bitx40, a small 40m rig that was sold as a completed PCB, it...
1 year ago
KO7M - Ham Radio Blog

Happy Holidays Everyone! - As the year draws to a close, I wanted to take a moment and wish everyone the Happiest of Holidays and all the best in the upcoming new year. All the be...
1 year ago
BITX SSB QRP TCVR FOR HAM RADIO

- My Journey with Amateur Radio: Sunil Lakhani (VU3SUA) Shares His Story Hello, fellow radio enthusiasts! This is Sunil Lakhani, also known as VU3SUA,...
2 years ago
Ripples in the Ether

POTA Activation of K-6033 Three Peaks BLM Recreation Management Area - My family and I just returned from a short road trip to visit with family in southern Utah. We typically try to get in at least one significant summer trip...
2 years ago
The "Speaky" HF SSB transceiver and other homebrew projects

Simple ESR meter - Almost a copy from here. Only added provision for self "TEST", that is; the switch disconnects the terminals and connect internally to know resistor v...
2 years ago
VE3WDM's QRPower BLOG

My blog is moving to a new location. - * VE9KK blog has moved we are not located at.........* *https://ve9kk.blogspot.com/ *
3 years ago
M0BPQ Amateur radio - Radio Blog

Effect of antenna height on 21MHz performance at GB2GP - The next contest band for HFTA analysis is 21MHz. The GB2GP antennas are either 3 elements on the 100ft tower or 4 elements on either the 80 or 60ft towers...
5 years ago
Fi-Ni Report

The TRUTH About Hara!!! - Photo via WHIO.com News out of Dayton Tuesday revealed that the aftermath of severe storms and tornadoes on Monday caused extensive damage in the Dayton ...
7 years ago
GW0KIG's radio blog

160 metres - 160 metres isn't really a band I have ever done much operation on. When I was first licensed I suppose I had the space for a decent 160m antenna but wasn't...
7 years ago
Patrick's VK2PN blog

On DX expedition Norfolk Island as VI9NI - The beautiful Norfolk Island. Chris VK3QB, Luke VK3HJ and David VK3BDX offered me a spot in the four members team. I've accepted fast and gratefully. Aft...
7 years ago
WØEA Blog!

Upgrades, planning, the future... - Over the last couple of weeks, I've started participating in a little round table on 80m at *5 AM*. Yikes. These group of guys are outstanding CW ope...
7 years ago
N8ZYA's QRP Radio Blog

Making Adjustments - This entry will have nothing to do with radio, but hopefully will be an explanation for my long absence of writing on this blog. In essence, I've been f...
7 years ago
AA6E Station Log

Some AREDN progress - We have been working on bringing up an AREDN mesh network at ARRL HQ and here at AA6E. AREDN, the Amateur Radio Emergency Data Network, has developed fr...
7 years ago
Ham Radio Weblog PD0AC

Review – BTech AMP-25 series for Analog & DMR - by John ‘Miklor’ K3NXU The AMP-25 series VHF / UHF Amplifiers The recently announced BTech Digital and Analog amplifier series puts a whole new spin on ...
8 years ago
Wheels, Wings and Radio Things

- Waiex Trip to Ocracoke NC Fall 2014 Took Trish to Ocracoke for a couple of days for our anniversary. She really does not like to fly with me but was ama...
8 years ago
SV8YM

Bringing back the memories - restoring a Graetz tube radio - *A heartbreaking sight...* *Courage old chap! You'll make it!!* *After a rather loooong hiatus,* here I am back again! No semiconductor stuff this time, ...
8 years ago
m0xpd's 'Shack Nasties'

Gaelic WSPRs - I was fortunate to spend a week on the banks of Loch na Deasport on the Isle of Lewis and (as previously advertised) I decided to throw out some WSPR signa...
8 years ago
ham electronic homebrewer

PIN diode T/R switch - 100 W T/R switch in box I like to play with separate transmitters and receivers, either those I'm building or a few classic boat anchors I'm hanging on t...
9 years ago
YO9IRF

Si5351 output waveforms - I finally managed to have myself some shack time this weekend and one of the curiosities I had was to check the output waveform of the Silicon Labs Si5351 ...
9 years ago
KC4BQK

- Linux has really come a long way here lately. I have been playing with UbuntuMate, and I like it. It has a good feel and also works on the new Raspberry Pi...
10 years ago
VE3MPG's Blog

Canadian CBC Monitoring Station at Richmond Ontario c.1983 - From my amateur radio collection of photos - these were shot on Ektachrome 100 way back in 1983. CBC used this station to record and re-broadcast BBC and...
11 years ago

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Sunday, March 22, 2015

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