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-   -   500 Khz in the 70's (https://www.shipsnostalgia.com/showthread.php?t=71914)

R651400 4th July 2014 05:39

500 Khz in the 70's
 
Just found this and don't think it has been on before.
Lsn closely KR!

http://www.youtube.com/watch?v=RRak_yBhrwA

Searcher2004 4th July 2014 07:22

Quote:

Originally Posted by R651400 (Post 929330)
Just found this and don't think it has been on before.
Lsn closely KR!

http://www.youtube.com/watch?v=RRak_yBhrwA

I think it's been linked to before but always good to listen to.

I have a recording I made the night 500kc closed down in the UK, using a ham transceiver. The audio file is 465 Mb and too big for my YouTube account, so I wonder if anyone has any ideas for putting it up on YouTube or somewhere for general consumption?

As my laughingly-called "broadband" can only manage 350 kb/s upload, on a good day, downhill and with a following wind, I'd be quite happy to mail a CD of the recording and the text copy to someone with a faster connection.

King Ratt 4th July 2014 08:25

Thanks R651400. However I have this stored in my favourite Youtubes. My wife thinks I am crazy because I sometimes run it as background in my study. She is probably quite correct.
For Searcher 2004. I recorded the coast stations going QRT on that Hogmanay many years ago. I have it stored in my iTunes files. I will endeavour to post it on here. I am only 50 miles from GPK and he roared in at my QTH with the opening of the closing "ceremony".

Searcher2004 4th July 2014 08:37

Quote:

Originally Posted by King Ratt (Post 929450)
Thanks R651400. However I have this stored in my favourite Youtubes. My wife thinks I am crazy because I sometimes run it as background in my study. She is probably quite correct.
For Searcher 2004. I recorded the coast stations going QRT on that Hogmanay many years ago. I have it stored in my iTunes files. I will endeavour to post it on here. I am only 50 miles from GPK and he roared in at my QTH with the opening of the closing "ceremony".

OK KR,

That will save me a lot of messing about! I recorded the last evening in East Anglia and I'm sure there's a few "DX" callsigns in the operator's chat at the end, maybe Newfoundland, IIRC. Amazing how quiet the background noise was on 500kc then, no plasma TVs and noisy routers to contend with.

73

R651400 4th July 2014 09:15

Quote:

Originally Posted by Searcher2004 (Post 929394)
I think it's been linked to before but always good to listen to...

Has it?
I've linked 500 kc/s before but this appears to be new.
Reason? Bringing KR's attention to GPK calling ELML for a link call.
Liberian ELML is a very early Liberian call-sign and I don't recall hearing it on previous threads or from my experience being part of the Niarchos group.
I'd also like to add that 500 kc/s from what I remember in the 50's to twenty years later the morse on this transcript is appalling.

King Ratt 4th July 2014 09:31

For R651400 and Searcher2004. i have been trying with no success to post my rercording of the closing on here. I will have another go failing that, it will be coffee time.

73
KR

Troppo 4th July 2014 10:20

Fantastic. Many thanks.

I am sitting here in London, after having attended IMO for 4 days.

Marine comms is, frankly, a mess. The GMDSS is a debacle.

Listening to that recording makes me very sad....

Mind you, some of the morse is indeed awful..

Dave the Vicar 4th July 2014 10:22

Heck that brings back memories. Weird how I can still read most of it too!!! Tks

(I'm missing the Q codes though; All the ones google finds are 'new'... Ham/modern.
Is there a PDF of the 1970's RO handbook on the net?)

endure 4th July 2014 10:29

Some real chirpers on there (Jester)

Dave the Vicar 4th July 2014 10:42

Quote:

Originally Posted by Searcher2004 (Post 929394)
I think it's been linked to before but always good to listen to.

I have a recording I made the night 500kc closed down in the UK, using a ham transceiver. The audio file is 465 Mb and too big for my YouTube account, so I wonder if anyone has any ideas for putting it up on YouTube or somewhere for general consumption?

As my laughingly-called "broadband" can only manage 350 kb/s upload, on a good day, downhill and with a following wind, I'd be quite happy to mail a CD of the recording and the text copy to someone with a faster connection.


If you've any audio tools you could cut it up and post it? What's their limit?
pm me if you want a hand? Hopefully cleaner than the US recording if made close to the UK N Sea?

R651400 4th July 2014 11:50

I'm very grateful to the American who modified his transistor receiver to receive and record this unique part of RO history.
Let's face it to catch EJK/Valentia and ICB/Genoa in almost the same breath in my humble opinion is unique.

R651400 4th July 2014 11:56

KR/Searcher 2004... I posted a spoof tfc list from GLD on here a long time ago.
It required a MP3 format and was broken up into three different files.
That should give you an idea how much SN allows!

endure 4th July 2014 15:28

Quote:

Originally Posted by Dave the Vicar (Post 929586)
Heck that brings back memories. Weird how I can still read most of it too!!! Tks

(I'm missing the Q codes though; All the ones google finds are 'new'... Ham/modern.
Is there a PDF of the 1970's RO handbook on the net?)


http://en.wikipedia.org/wiki/Q_code

R651400 4th July 2014 15:57

The Inspector of Wireless Telegraphy Q code went from QRA to QUZ.. My 1956 PMG2 written regs question QUI?... Are your navigation lights working?

QRA What is the name of your station?
QRB How far approximately are you from my station?
QRC How are the accounts for charges for your station settled?
QRD Where are you bound for and where are you from?
QRE What is your estimated time of arrival at...
QRF Are you returning to...
QRG Will you tell me my exact frequency?
QRH Does my frequency vary?
QRI How is the tone of my transmission?
QRJ How many radiotelephone calls have you to book?
QRK What is the intelligibility of my signals?
QRL Are you busy?
QRM Are you being interfered with?
QRN Are you troubled by static?
QRO Shall I increase transmitter power?
QRP Shall I decrease transmitter power?
QRQ Shall I send faster?
QRR Are you ready for automatic operation?
QRS Shall I send more slowly?
QRT Shall I stop sending?
QRU Have you anything for me?
QRV Are you ready?
QRW Shall I inform ... that you are calling him on ... kHz (or MHz)?
QRX When will you call me again?
QRY What is my turn?
QRZ Who is calling me?
QSA What is the strength of my signals?
QSB Are my signals fading?
QSC Are you a cargo vessel?
QSD Is my keying defective?
QSE What is the estimated drift of the survival craft?
QSF Have you effected rescue?
QSG Shall I send ... telegrams at a time?
QSH Are you able to home on your direction-finding equipment?
QSI I have been unable to break in on your transmission.
QSJ What is the charge to be collected to ... including your internal charge?
QSK Can you hear me between your signals and if so can I break in on your transmission?
QSL Can you acknowledge receipt?
QSM Shall I repeat the last telegram which I sent you?
QSN Did you hear me on ... kHz (or MHz)?
QSO Can you communicate with ... direct (or by relay)?
QSP Will you relay to ... free of charge?
QSQ Have you a doctor on board?
QSR Shall I repeat the call on the calling frequency?
QSS What working frequency will you use?
QSU Shall I send or reply on this frequency?
QSV Shall I send a series of Vs on this frequency?
QSW Will you send on this frequency?
QSX Will you listen to ... on ... kHz?
QSY Shall I change to transmission on another frequency?
QSZ Shall I send each word or group more than once?
QTA Shall I cancel telegram (or message)?
QTB Do you agree with my counting of words?
QTC How many telegrams have you to send?
QTD What has the rescue vessel or rescue aircraft recovered?
QTE What is my true bearing from you?
QTF Will you give me my position according to your bearings?
QTG Will you send two dashes of ten seconds each followed by your call sign?
QTH What is your position in latitude and longitude?
QTI What is your true track?
QTI What is your true course?
QTJ What is your speed?
QTK What is the speed of your aircraft in relation to the surface of the Earth?
QTL What is your true heading?
QTM What is your magnetic heading?
QTN At what time did you depart from ...?
QTO Have you left dock (or port)?
QTP Are you going to enter dock (or port)?
QTQ Can you communicate with my station by means of the Internanational Code of Signals?
QTR What is the correct time?
QTS Will you send your call sign for tuning purposes or so that your frequency can be measured?
QTT The identification signal which follows is superimposed on another transmission.
QTU What are the hours during which your station is open?
QTV Shall I stand guard for you on the frequency of ... kHz?
QTW What is the condition of survivors?
QTX Will you keep your station open for further communication with me until further notice?
QTY Are you proceeding to the position of incident and if so when do you expect to arrive?
QTZ Are you continuing the search?
QUA Have you news of ... ?
QUB Can you give me in the following order information concerning: the direction in degrees and speed of the surface wind, visibility, present weather, and amount, type and height of base of cloud above surface elevation at ... ?
QUC What is the number (or other indication) of the last message you received from me?
QUD Have you received the urgency signal sent by ...?
QUE Can you use telephony in ... (language), with interpreter if necessary; if so, on what frequencies?
QUF Have you received the distress signal sent by ...?
QUG Will you be forced to alight (or land)?
QUH Will you give me the present barometric pressure at sea level?
QUI Are your navigation lights working?
QUJ Will you indicate the true track to reach you?
QUK Can you tell me the condition of the sea observed at ...?
QUL Can you tell me the swell observed at ...?
QUM May I resume normal working?
QUN Will vessels in my immediate vicinity please indicate their position, course and
QUO Shall I search for ... (aircraft, ship, survival craft)?
QUP Will you indicate your position by searchlight, black smoke trail, pyrotechnic lights?
QUQ Shall I train my searchlight nearly vertical on a cloud, and if your aircraft is seen, deflect the beam up wind and on the water?
QUR Have survivors ... (1. received survival equipment, 2. been picked up by rescue vessel, 3. been reached by ground rescue) party?
QUS Have you sighted survivors or wreckage?
QUT Is position of incident marked?
QUU Shall I home ship or aircraft to my position?
QUW Are you in the search area designated as ...?
QUX Do you have any navigational warnings or gale warnings in force?
QUY Is position of survival craft marked?
QUZ May I resume restricted working?

Searcher2004 4th July 2014 16:00

Quote:

Originally Posted by Dave the Vicar (Post 929634)
If you've any audio tools you could cut it up and post it? What's their limit?
pm me if you want a hand? Hopefully cleaner than the US recording if made close to the UK N Sea?

Dave,

I think 15 minutes is the YouTube limit unless you upgrade your subscription and the file is 46 min long. I can see if there's any software to chop it up, unless you know of anything that comes with Win7?

Cheers

Searcher

Duncan112 4th July 2014 16:07

43 Attachment(s)
Audacity http://audacity.sourceforge.net/ is a good freebie - I use it to produce mobile ring tones from longer recordings - don't know what the upper limit for size is though.

Dave the Vicar 4th July 2014 17:32

Quote:

Originally Posted by endure (Post 930042)

But note how they are the ham codes? Is it 100% overlap?

Dave the Vicar 4th July 2014 17:33

Thanks. I can't tell if it's complete, but looks so!

Dave the Vicar 4th July 2014 17:34

Quote:

Originally Posted by Searcher2004 (Post 930122)
Dave,

I think 15 minutes is the YouTube limit unless you upgrade your subscription and the file is 46 min long. I can see if there's any software to chop it up, unless you know of anything that comes with Win7?

Cheers

Searcher

Sorry, I'm on Linux - let me know if you're stuck. I'll do it and return it,
or upload it if you like.

endure 4th July 2014 18:16

Quote:

Originally Posted by Dave the Vicar (Post 930250)
But note how they are the ham codes? Is it 100% overlap?


"The original Q codes were created, circa 1909, by the British government as a "list of abbreviations... prepared for the use of British ships and coast stations licensed by the Postmaster General""

They were originally for official use. Hams just stole them (Jester)

LouisB 4th July 2014 20:23

Quote:

Originally Posted by R651400 (Post 929682)
I'm very grateful to the American who modified his transistor receiver to receive and record this unique part of RO history.
Let's face it to catch EJK/Valentia and ICB/Genoa in almost the same breath in my humble opinion is unique.

I think it amazing that when working CW in difficult and crowded conditions, and despite narrower filters with very sharp skirts and latterly variable digital filters, the main discriminator for resolving wanted transmissions was the operators ears and brain. I know not strictly 500 Kcs but never the less an amazing feat in an advanced technical age. Just thought I'd mention it.

LouisB. (Scribe)

Troppo 4th July 2014 20:42

Like someone else mentioned, I just let the file run in the background while doing some work on the laptop....

It felt like I was in a time warp to the mid 80s....back on watch.

Spooky.

Searcher2004 4th July 2014 21:31

Quote:

Originally Posted by Dave the Vicar (Post 930282)
Sorry, I'm on Linux - let me know if you're stuck. I'll do it and return it,
or upload it if you like.

OK Dave, thanks for the offer of help. I'm seeing my son tomorrow and he's got a full YT account and a very fast broadband connection, so I'm going to ask him to upload it. I'll link to it when he tells me where it is.

Cheers

Searcher

R651400 4th July 2014 21:46

Quote:

Originally Posted by LouisB (Post 930466)
... I know not strictly 500 Kcs but never the less an amazing feat in an advanced technical age. Just thought I'd mention it...

Glad you did because I can't explain it either.
I still continue to participate in amateur radio morse competitions and to have the ability to extract one solitary signal from ten or more simultaneous transmissions on the same frequency or close by never ceases to amaze me.
Mind over matter?

31552 4th July 2014 22:41

Quote:

Originally Posted by Dave the Vicar (Post 929586)
Heck that brings back memories. Weird how I can still read most of it too!!! Tks

(I'm missing the Q codes though; All the ones google finds are 'new'... Ham/modern.
Is there a PDF of the 1970's RO handbook on the net?)

try this link


https://archive.org/details/HandbookForRadioOperators

1975 edition

links to the downloadable content at top left of page


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