PA3CLQ's Leuke Linken Nr. 503


To make your own slide coil for ATU or so?

Replace the resistance wire with enamelled copper wire.

Do not forget to make the wire clear at the level of the two or one sliding contacts.

Good for a collective project?

Would the V or U shape of the slide be a problem?

Would the coil body HF be resistant?



Night of Nights 2018, to be sure.

We begin operations of all stations (KPH/KFS/K6KPH) at 0001 UTC on July 13.
K6KPH operations may start earlier, but no later than 0001 UTC.
K6KPH operations will continue until at least 0430 UTC.
KPH and KFS will end with a Closing Message at 0700 UTC.

KPH (5kW):
426 Henry MF5000D Marconi T
500 Henry MF5000D Marconi T
4247.0 RCA 252K EDZ
6477.5 RCA 251K EDZ
8642.0 RCA 303L EDZ
12808.5 RCA 304L H/2
17016.8 RCA 305L H/2
22477.5 RCA 298H H/2
KFS (5kW):
12695.5 PW-15 H/2
17026.0 Henry HF5000D H/2
KPH and KFS operators will listen for calls from ships on 500kc MF and ITU Ch 3 HF.

Listen on these frequencies if you want to hear the ship side of the QSO.
K6KPH (1.5kW):
3550.0 Henry HF5000D End-fed wire
7050.0 Henry HF5000D EDZ
14050.0 Henry HF5000D H/2
21050.0 Henry HF5000D H/2
For more info are:
Best Regards,
Operations Department

To receive some stations without a MF receiver or so, go to:

Choose: at Delfi-C3 groundstation for receiving CW stations ~ 500 KHz at: has a problem



Mark Your Calendars! SKCC will be having it's first ever QSO Party!
Starts on Saturday October 6th, 2018 at 18:00 UTC and ends on Sunday October 7th, 2018 at 18:00 UTC.
Contest period is 24 hours with no operating time limits.
The exchange must include: RST, SPC, Name and four digit Grid Square. SKCC SPC = US-State/Canadian-Province/Country Codes for the rest of the world.
There is an SKCCPARTY UDC module = User Defined Contest module that can be implemented in N1MMLogger that is not yet uploaded to the N1MMLogger+ site.

If you have the opportunity to test this UDC, I would like to hear the result.

See Attachment pse


Today ~11:00 UTC i have made my first QQRP QSO, with IZ3SOI.

Transmitter: S-Pixie 1,2 Watt into an inverted V 2x10m up 9m, base ~19 meter, end up ~2meters, Key UNI-730A wired as a cootie

RST~339. 865KM ~720KM/Watt can better.


UNI-730A at:,searchweb201602_4_10152_10151_10065_10344_10068_10342_10343_10340_10341_10696_10084_10083_10618_10304_10307_10820_10821_10301_10846_10843_10059_100031_10103_524_10624_10623_10622_10621_10620,searchweb201603_6,ppcSwitch_2&algo_expid=bbea91b2-2d4e-44a2-bdf2-b735273f49ce-0&algo_pvid=bbea91b2-2d4e-44a2-bdf2-b735273f49ce&transAbTest=ae803_2&priceBeautifyAB=0



Last month a good friend in the UK gave me his Begali HST Mk 2,



I have sent the following request to the n1mm+ development team.
I definitely agree with all three suggestions.

Anatomically speaking, there is no neurological pathway from your ears to your hands that doesn't go through your brain.
Steve AI9IN


Here's an nice old key:

73, David N1EA


Someone wrote me for information on the history of the Time Signal.

I threw everything I had up for him up on Google Drive.

You can get it at this link, if you are interested.

There is one additional item in there.

It is my work on the history of Wire Signals (a,k.a. "the Numeral Code,") and you will need Excel to open it.

The file was simply too wide to put into a manageable PDF.

-- 73 SW & (abram burnett)

May be interesting there is a large group that deals with precision measurement of Time,

Google: Time Nuts and find:

Time-Nuts -- Precise Time and Frequency for Amateurs

Description. Time-Nuts™ is a mailing list for amateurs who are interested in precise Time & Frequency.

Topics include stability of quartz oscillators, measurements



All of you VHF and meteor scatter guys,
there is a daylight shower today, around 1 meteor a minute and they are slow movers so they should leave nice long, hopefully persistent, trail.

I’m still working through antenna problems but I will try to be on for the WES.

See you guys soon, atmospherics and antenna work permitting.
Leslie Hock WB5JWI


[slowspeedwire] How Long Since Two Railroad Presidents Telegraphed Together ?

When was the last time two railroad presidents telegraphed together ?

The last time may have been May 24, 1944, when B&O RR President Roy B. White telegraphed with E. E. Norris, President of the Southern Ry.

The event, of course, was the celebratory re-enactment of of the famous "What Hath God Wrought" message on the first telegraph line (Baltimore-Washington,) after which Mr. White gave a short speech.

Railway Signaling magazine carried an article on the event the following month, June 1944.

Mr. White's speech at the B&O's Mount Clare Station in Baltimore is reproduced in the first two pages of the article.

The following three pages concern Old Man Morse, and are apparently copy written by some reporter, and a close reading reveals some unclarities, both in the text and in the photo captions.

Two bronze tablets cast for the occasion are pictured.

It is stated that one was placed in the B&O Mount Clare Station, Baltimore, where Alfred Vail manned one end of that first circuit.

It is unspecified by the caption, but the other tablet may have been placed in the Supreme Court, where Mr. Norris was apparently located.

(Such unclarities are unforgivable in professional writing.)

Roy Barton White was born in Metcalf, Ill., in 1883 and hired in 1900 as a telegrapher at "DA" office, Dana, Indiana, on the Indiana Decatur & Western Ry.

He made Train Dispatcher in 1902 and Chief Train Dispatcher in 1909.

Ernest Eden Norris was born at Hoopeston, Illinois, in 1882, and hired as a telegrapher on the Chicago & Eastern Illinois RR in 1899, and was thence Train Dispatcher at Chicago on that road.

He was President of the Southern 1937-1951. (Biographical data on both White and Norris are from 1922 ed. of Biographical Directory of Railway Officials of North America.)

Since Yahoo is now very badly fumbling attachments, I have put the article from Railway Signaling up on Google Drive, and you may obtain it by clicking this link:

BTW, I believe Harold H. Hall may have been the last railroad president who started off as a telegrapher.

Hall, born ca. 1917, began as a telegrapher on the Southern at Andrews, NC, in 1943, and was thence Train Dispatcher.

He was president of the Southern Ry 1980-1987, and died in 1991.

I seem to recall that Dots & Dashes carried something on him in the 1980s, wherein he related a story about being "knocked across the room" by grabbing a telegraph key while he was standing in water at a flooded station.

-- 73 SW & (abram burnett)


Does anyone know of a program or app that shows the length of the dots, dashes and spacing between words and letters,,,,

as it decode CW?

Paul kw1L
Precision CW Fistcheck shows a graphical representation of element timing and spacing for each character as you send them.

It's handy for diagnosing common timing errors made with straight keys, bugs and sideswipers.

Here's the FAQ:

73, Drew AF2Z

When i want to check the length i use Audacity (waveform editor) to look at the sound and measure it on screen
Ron Legere.

Google Audacity (waveform editor)



Some observations on bugs

For a proper adjustment of a bug key, there are some informations on Internet.
Try to enter "semi automatic key adjustment" on your search engine.
For example you can see a text and drawing on the Vibroplex page here :

There are several other texts to read.
See you soon on the air with pump, cootie or bug keys !
73 de Bernard, F5DE,


Hello friends,
Slapping a Fat Boy isn't recommended.

However, no risk with Steve's new pal... Meet the Fat Boy Cootie:
Well done Steve, keep up the good work mate.

Have a nice day / week(end) gents, BCNU.

73, Yann, F5LAW

By OM Yann F5LAW SideSwiperNetGroup


73, from the town at the rivers "De Bergsche Maas" and "De Dongen" Geertruidenberg (800+ years city rights) at: 51.702211N 4.853854E

Editor Jan Pieter Oelp PA3CLQ



My simple website about Gigantic DF-Antennas

Part 1 "DF-Antenna Wullenweber Array"

Part 2 "DF-Antenna USSR Variants"

Part 3 "DF-Antenna USA Variant"

Next Part 4 "USSR OTHRA DUGA 1,2 & 3" at: