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CQ Radio Amatuers de G4MYD

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  #51  
Old 7th April 2018, 19:29
johnvvc johnvvc is offline  
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Congratulations Bob - you'll be running with the big boys in no time !!!
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  #52  
Old 7th April 2018, 19:50
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Originally Posted by johnvvc View Post
Congratulations Bob - you'll be running with the big boys in no time !!!
Many thanks, I am putting in a bit of practice on the old twin paddle .. but have dug out the old up and downer and connected it up.

It's a bit humbling to realise how bad you've become through lack of doing.
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  #53  
Old 8th April 2018, 08:40
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I had the pleasure of a few QSOs using Icom's latest over the weekend.

A 7610. Magnificent.
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  #54  
Old 8th April 2018, 17:49
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At 3600 a go it should be.
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  #55  
Old 9th April 2018, 02:48
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Incredible rx. As good as a $20000 R and S from 2 years ago....
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  #56  
Old 9th April 2018, 10:14
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Further to my last. Rx performance as good as a 100K Hagenuk military HF transceiver....
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  #57  
Old 9th April 2018, 11:25
Dave McGouldrick Dave McGouldrick is offline
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Speaking of receivers and costs... I remember in mid/late 70s, 2/Eng had bought a Sony HF2000(?)one of the first 'domestic' digital receivers. We connected it to the ship's communal aerial, and while we were at anchor off Fujairah for a number of weeks, I used to take tfc lists whilst enjoying his cold beer.
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  #58  
Old 9th April 2018, 13:18
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If that's the Sony Digital with the LCD display Dave I had one of those too and did occasionally use it as 'backup.'

Nice little set but I made the mistake of lending it to somebody to go camping and never saw it again …
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  #59  
Old 9th April 2018, 15:23
Dave McGouldrick Dave McGouldrick is offline
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Yup - that's the one. Nice little set. (And indeed a very handy size for someone sticking in their pocket and forgetting to return it)
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  #60  
Old 9th April 2018, 15:53
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Looking at these recent posts it's interesting to see how receiver technology has changed since we first went to sea, both commercially and domestically.
The first receiver I sailed with as a Junior was the Marconi Atalanta. Perfectly good analogue receiver using valves (mutter mutter ... not tubes ... ) but a bit clunky.
The next analogue receiver I sailed was the Redifon R408, (Dave might remember this from Leith Nautical) which was about as good as an analogue receiver as you can get in my experience. After that I sailed with ITT digital receivers (first time I'd seen one) and I thought I'd duff up I was so impressed.

THEN I SAILED WITH THE REDIFON R50M

I still have nightmares about that. The little Sony digital receiver would have been about a googolplex times better than that bloody thing.

And now we have wonderful little digital receivers with spectrum analyzer displays, both traditional and waterfall, that literally tell you to go away and we'll do the QSO's for you, bloody humans are slow and filled with errors anyway.

(You'd know about that wouldn't you DAVE, (think a HAL9000 voice) ... had to get that one in. )

Shall I wire up a keyboard with a computer, let it talk over the air and poke me with a cattle prod when it needs some human advice (and I say advice, not instruction on purpose ... ) ... is this the way for amatuer radio to go ?

(Judging by my performance on a morse key last week it might not be a bad idea.)
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  #61  
Old 9th April 2018, 16:12
Dave McGouldrick Dave McGouldrick is offline
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Had the R50M on my first ship. Came complete with the classic slight freq drift as the ship rolled. Something to do with the varying of the capacitance between the aerial wire and earth.
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  #62  
Old 9th April 2018, 18:34
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Just for you Dave .

https://www.shipsnostalgia.com/galler...o-room/cat/all
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  #63  
Old 12th April 2018, 04:31
Naytikos Naytikos is offline  
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posted by BobClay:
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The next analogue receiver I sailed was the Redifon R408
,

Agreed. I would buy one today if I found it.
There were two common problems: the little LES lamp in the aerial circuit would blow when one transmitted if there was no aerial disconnect relay as part of the 'desense' system. I actually came across one example where this had obviously happened to my predecessor and, instead of taking a bit of sleeving to extract and replace the lamp through the tiny hole in the front panel, he had reamed out the hole to about half an inch.
The other problem was if/when the cord driving the frequency scale drum broke.

But, to my mind, one really appreciates a piece of equipment when one has taken it apart and fixed it a few times.
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  #64  
Old 12th April 2018, 09:28
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I still have nightmares thinking about the 408....

Most of my main rx'ers were Apollos.
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  #65  
Old 13th April 2018, 06:47
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Quote:
Originally Posted by Dave McGouldrick View Post
Had the R50M on my first ship. Came complete with the classic slight freq drift as the ship rolled. Something to do with the varying of the capacitance between the aerial wire and earth.
G'day Dave,
Was that on a Blue Funnel M-boat? I was on Memnon and have been trying to remember what radio gear they had. Not Marconi like the A-boats,
Richard
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  #66  
Old 13th April 2018, 07:03
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GTZB appeared to give up on Marconi with the last of the A-boats and went for Redifon when the M-boats were built.
Would be nice to see any pic of this installation and the later Super P's and Centaur etc.
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  #67  
Old 13th April 2018, 07:10
Dave McGouldrick Dave McGouldrick is offline
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Quote:
Originally Posted by richardwakeley View Post
G'day Dave,
Was that on a Blue Funnel M-boat? I was on Memnon and have been trying to remember what radio gear they had. Not Marconi like the A-boats,
Richard
Morning Richard
It was Orestes/GNZG ex Nestor.
Now of course I'm thinking was the R50M on Ixion/MLLB (second ship)?
It was 1970 and the brain cells are maybe not so sharp as they might be
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  #68  
Old 13th April 2018, 07:17
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All 50's H (Ixion/MLLB) and P class to the best of my memory were Marconi.
GTZB appeared to give up on Marconi with the last of the A-boats and went for Redifon when the M-boats were built.
Would be nice to see any pic of this installation and the later Super P's and Centaur etc.
Built like a tank with fantastic stage metering never had a any problem with the Redifon R50M except maybe an occasional inaccurate logging scale if mishandled.
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  #69  
Old 8th June 2018, 00:06
majoco majoco is offline  
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Quote:
Came complete with the classic slight freq drift as the ship rolled. Something to do with the varying of the capacitance between the aerial wire and earth.
Wasn't that called a "Banana Boat Swing". Everard's Yellow Perils all sounded like that - and so did the only Liberty Boat that I sailed on - had an early Oceanspan, Elettra and Mercury. Fortunately on the first visit back to Liverpool the nice Marconi guys took it all out and gave me a much newer 'Span and two Atalantas - no more swing on the new Tx!
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  #70  
Old 17th June 2018, 19:56
sparks69 sparks69 is offline  
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Bury a dust bin lid in the soil somewhere near a soakaway.
QED
Oh & don't forget to connect a wire back to the Tx.
Welding cable is best.

Last edited by sparks69; 18th June 2018 at 17:11..
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  #71  
Old 17th June 2018, 19:58
sparks69 sparks69 is offline  
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Quote:
Originally Posted by Dave McGouldrick View Post
Had the R50M on my first ship. Came complete with the classic slight freq drift as the ship rolled. Something to do with the varying of the capacitance between the aerial wire and earth.
"Slight drift" now that is being kind.
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  #72  
Old 17th June 2018, 23:46
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I laid another radial about three weeks ago. The old split with shovel and push the wire down with fingers. But the weather God decided to extract the liquid waste matter and we got a fortnight of hot dry weather. Where I'd split the lawn (and then thoroughly kicked it back !!!) opened up like the bloody grand canyon, making my lawn look like Frankenstein's Monster after he'd downed ten pints of Banks Bitter.

Eventually I bought a bag of dirt in the local agricultural shop (lots of them in Cornwall,) of course they didn't call it dirt, they called it compost but I know dirt when I see it (you might gather from this I'm not much of a gardener, as far as I'm concerned gardeners all wear anoraks and are probably into train spotting as well.)

I patiently went along the crack and filled it full of this 5 a bag dirt. Then LO AND BEHOLD ... it rained. And the expensive dirt disappeared down the crack as if it had never been there.

Agricultural shops . FASCIST CORPORATE LAND BARONS the lot of em.
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  #73  
Old 18th June 2018, 02:00
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Funny how we all see our experiences with different receivers differently.
I never had any problems with the R408, of which two were installed on the "Baby Bays". Eventually, the main R408 RX was replaced by the R5000, an excellent receiver with memory recall, if I remember correctly.
We also had a dual R551 with synthesiser on the bigger bays, a step up in stability but no memory recall.
I own an R551 with synthesiser and the only problem I ever had was the antenna fuse blowing. Once blown, never forgotten.

Regards, John.
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  #74  
Old 18th June 2018, 10:50
Dave McGouldrick Dave McGouldrick is offline
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Quote:
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"Slight drift" now that is being kind.
There was a subtle amount of irony involved....
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  #75  
Old 18th June 2018, 11:17
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I'd like to have been subtle with the R50M preferably with a ten pound sledge hammer.
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