Longest QSO? - Ships Nostalgia
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Longest QSO?

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  #1  
Old 22nd February 2008, 19:48
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Trevorw Trevorw is offline  
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Longest QSO?

Mine was from just off Singapore to GKI at Portishead - got a QRK/QSA 4 on that particular transmission! Used a Globespan (Marconi) transmitter and an Atalanta reciever.

Last edited by Trevorw : 22nd February 2008 at 19:49. Reason: Ommited some text!
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  #2  
Old 22nd February 2008, 20:01
K urgess K urgess is offline
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Bass Strait to Portishead using an Oceanspan VII and Atalanta. QRK3/4
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  #3  
Old 22nd February 2008, 20:11
sparkie2182 sparkie2182 is offline  
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n.z. coast to dan, marconi commander.
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  #4  
Old 23rd February 2008, 13:28
athinai athinai is offline  
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Athinai Radio SVA Nightly on 4 and 6 mhz Panama to NSW about 1967 and GKI 22mhz daylight to the UK same trip, one call and UP WKG Freq with both stations. Transmitter looked pretty old and one had to tune the Crystal Oscillator first then the first intermediate Amp and so on until finally getting the Antenna setup via the DIP and MAX OUT. I cant remember the name of the TX but it must have came from the ''ARK''
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Last edited by athinai : 23rd February 2008 at 13:31.
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  #5  
Old 23rd February 2008, 13:47
K urgess K urgess is offline
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Shouldn't this be categorised by output power?
Globespan? Commander? Modern trash with too much power.
Although the Globespan is a bit long in the tooth I suppose.
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  #6  
Old 23rd February 2008, 14:03
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Quite right Marconi Sahib - this should be confined to Oceanspan transmitters with their stunning 120 watts max.
I remember on a shore run in Singapore being scoffed at by an SSM sparks because of the troubles I had qso'ing europe with my Oceanspan. Turned out he had a 1.2kW Transmitter !
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  #7  
Old 23rd February 2008, 14:07
BA204259 BA204259 is offline  
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In the days of the Area system. Just about to enter Sydney. Had just sent my TR to Sydney/VIS on 500. As usual asked him to QSP it to VIS H/F. As usual, he refused. Too close to hear VIS on H/F, it was well dark and couldn't hear him anywhere. I did however hear GKG booming in (QSA5 QRK5) on 12 mc/s (or mHz). He answered first call and I had to tell him we were QTP VIS so he could send my TR all the way back. Amazing.

As to transmitter power, I never had more than 100W, never.
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  #8  
Old 23rd February 2008, 14:08
K urgess K urgess is offline
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We know power wasn't everything but there's certainly a difference between an Oceanspan and the later all singing, all dancing models.
Even a difference between Oceanspans from 60 watts to 120 watts but at least a yardstick for measurement.
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  #9  
Old 23rd February 2008, 15:19
athinai athinai is offline  
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Hi Marconi Sab,

I think the RF Out was only about 40 Watts, as in radiated power, A guy tried to explain it to me once, on and on about the Ear being subject to a Logritmig responce curve., and you having to increas power by a high proportion in order for the ear to notice., something like that., anyway we always got through to Europe. P.S. Just noticed that post/question may not have been for me,

73
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Last edited by athinai : 23rd February 2008 at 15:23.
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  #10  
Old 23rd February 2008, 15:49
K urgess K urgess is offline
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S'OK Athinai.
I never could figure out what output power on CW HF was.
Not the sort of thing that concerned you after college.
Besides never had any sort of test equipment anyway.
From QSOing Portishead from Tasmania, which was a reason for celebration, to not being able to raise CWA (Montevideo) from anywhere, including on 500 when anchored in the River Plate, it was always a hit or miss game.
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  #11  
Old 23rd February 2008, 17:36
niggle niggle is offline  
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Regularly used to send telex traffic to GKA from Aussie coast direct as long as I got short bounce route on 8Mhz in a morning if I remember back to the 80's correctly, abeit the Tx was a Redifon RMT1500 and Redifon receiver but can't remember type but it did have a large heavy silver tuning knob and was synth'd, linked to a Marconi sitor telex unit. I also remember being able to trigger GKA telex but if reception or transmission was long path the time between Tx and Rx was to long so it could not sync itself so would drop out. Those were the days when the owners would sent out messages last thing Friday knowing you could not reply until after the weekend.

Niggle
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  #12  
Old 23rd February 2008, 18:26
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Quote:
Originally Posted by Marconi Sahib View Post
S'OK Athinai.
I never could figure out what output power on CW HF was.
Managed Singapore to GKL, Electra receiver Oceanspan Mk 6 100w. I recollect at night on 8 mc/s.

The Oceanspan with a HT of 600V at 100m/a supplying 3 807's in parallel ie 60w each or 180W DC input power should give 100w or more RF to an ideal load.
With the area system, 100w was adequate but there was also the Worldspan high power amplifier driven by the Oceanspan for liners and others who required high power. Saw one on a visit to RFA Fort Beauharnois/MAAR in '58.
Another Oceanspan version was the Trader which was MF only.
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  #13  
Old 23rd February 2008, 20:59
niggle niggle is offline  
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Respect to the previous entry from "R651400" being able to recollect the HT voltage etc etc, crikey I only go back to the late 70's to mid eighties......... seems that maybe the old dits and dahs have been getting too the grey matter too much as I cannot recall such info as to voltage, currents etc but can remember that the Redifon RMT1500 Main Transmitter used 4 x CX250B ceramic output valves.............now that is sad but there again brings back my sea going days with nostalgia which is what this site is all about and long may it continue.

Niggle
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  #14  
Old 23rd February 2008, 23:19
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The 'City of Lucknow' had an Oceanspan III transmitter (and a CR300/2 receiver) but on our 1962/63 trip round the world west-about from Glasgow. we were never out of contact with Portishead. All traffic to the UK was sent direct to Burnham, only the shore-ship traffic was routed via the Area Scheme's overseas transmitters. From some locations you had to be choosy about transmission times but it never proved necessary to hold traffic over to the following day - not even in the Pacific to the West Coast of Panama, which was often a problem area for propagation to the UK.
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  #15  
Old 23rd February 2008, 23:39
K urgess K urgess is offline
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Does anybody remember when Portishead stopped sending ship's traffic blind after the traffic lists?
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  #16  
Old 23rd February 2008, 23:50
Peter4447 Peter4447 is offline  
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Just been reading through this thead and at this late hour I rather wish I hadn't - definately too technical for my old grey cells.
I know this is a Nostalgia site but my word you Sparkie types know your onions and you don't appear to have forgotten much, you make it all sound like you could simply sit down and do it all again today
Peter4447
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  #17  
Old 24th February 2008, 00:03
K urgess K urgess is offline
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It's probably because it was drummed into us at college, Peter.
We were able to operate in our sleep and I suppose the deep dark recesses of our minds still contain the remnants of that training.
It sort of pops to the surface every so often like the bubbles in champagne.
Only the best of vintages you understand.
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  #18  
Old 24th February 2008, 05:06
trotterdotpom trotterdotpom is offline  
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Quote:
Originally Posted by Marconi Sahib View Post
Does anybody remember when Portishead stopped sending ship's traffic blind after the traffic lists?
1972 when the Area Scheme folded and the station had to be contacted like any other station.

John T.
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  #19  
Old 24th February 2008, 11:52
K urgess K urgess is offline
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Thanks JT.
I'd completely forgotten about GKL sending blind until I came across a message that I'd received from GKC5 that I'd QSL'd through ZSL.

Salaams
Kris
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  #20  
Old 24th February 2008, 13:55
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Hi niggle
What a wonderful valve the 4cx250B was. I came across it after I left the sea as the final PA in a 100 Watt VHF transmitter operating in the lower VHF band.
So easy to neutralise and very low 3rd order intemodulation product levels. However the 1500 volt final PS supply used to give me the heebies.
Regards
John
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  #21  
Old 24th February 2008, 14:57
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Quote:
Originally Posted by Marconi Sahib View Post
I'd completely forgotten about GKL sending blind.
Kris
Sending the piles of telegrams at the end of the A/C traffic lists was done exclusively by a cadre of GKA's senior operators, using standard morse key. Bugs and electronic keys were frowned upon and only appeared on night-shift when supervision was a bit more relaxed.
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  #22  
Old 24th February 2008, 15:52
G0SLP G0SLP is offline  
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I know it's not a 'commercial' QSO, but how about an SSB QSO from 250NM NW of Cape Town (LPG/C "Teviot", October 1994, on passage from Venezuela to Thailand) to Hawaii, with the Hawaii station beaming over the North Pole? I couldn't hear him when he tried pointing his beam anywhere other than over the Pole. I was running 200W from the ship's Skanti 7200 & Marconi vertical. It was as though the DX was in the same room. Excellent!
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  #23  
Old 24th February 2008, 20:23
sparkie2182 sparkie2182 is offline  
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sorry folks.......

i thought the thread referred to time on the key, rather than range/power output.

73's

sparkie 2182
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  #24  
Old 25th February 2008, 02:00
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I sent QTC 15 to Portishead from the South Pacific using the lifeboat transmitter with the mates clothes line as an aerial. Oh yes, and I wound the handle myself at the same time !!!!!
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  #25  
Old 25th February 2008, 04:38
trotterdotpom trotterdotpom is offline  
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Gareth, that wasn't a lifeboat transmitter, it was one of those old washing machines like my mother used to have - my sister and I had to work the paddle with the handle on top. I wish we'd known you could send telegrams with it, You tell the kids today....

John T.
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