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  #2376  
Old 12-02-2018, 17:23
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Quote:
Originally Posted by harry.gibbon View Post
David, you have already featured these in #2359 & #2363


Little h
Ah but the first two - 2354 and 2363 - were black and white. Now you have glorious colour Harry!
By the way 2359 was one of Jan's.
Now how about this? Dipping comes to mind?
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File Type: jpg 89Q.jpg (79.4 KB, 8 views)
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  #2377  
Old 12-02-2018, 19:37
Dave Hutson Dave Hutson is online now
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Default Re: Communications in the Royal Navy

Hi David ,

Is that not an 87M ?

Dave H
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  #2378  
Old 12-02-2018, 19:49
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Default Re: Communications in the Royal Navy

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Originally Posted by Pelican View Post
Ah but the first two - 2354 and 2363 - were black and white. Now you have glorious colour Harry!
By the way 2359 was one of Jan's.
Yes David should've been #2354 - my bad - failure to proof read before transmitting.

I've nearly finished doing a short voluntary refresher during the 'last dog'

Little h
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  #2379  
Old 12-02-2018, 20:10
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Default Re: Communications in the Royal Navy

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Originally Posted by Dave Hutson View Post
Hi David ,

Is that not an 87M ?

Dave H
With respect Chief Tel. - might I suggest the Transmitter Type 89M or 89P.

It might even be an 89Q, although I'm not sure if the difference could be established by the outward appearance of the 'Q' compared with the 'M' or 'P' versions


Little h
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  #2380  
Old 12-02-2018, 22:20
Mitch Hinde Mitch Hinde is offline
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Default Re: Communications in the Royal Navy

Hi All

I think one of the differences between the 89P and Q was the P was coil controlled and the Q was crystal controlled. Maybe wrong, mists of time and all that.

Mitch Hinde
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  #2381  
Old 12-02-2018, 22:45
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Default Re: Communications in the Royal Navy

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Originally Posted by Mitch Hinde View Post
Hi All

I think one of the differences between the 89P and Q was the P was coil controlled and the Q was crystal controlled. Maybe wrong, mists of time and all that.

Mitch Hinde
Mitch,

HMS Collingwood Historic Collection (CHC) (formerly the rnmuseumradarandcommunications2006.org.uk site) is a bit more lucid about the difference than that contained in the BR333.1 'thricer'. The CHC entry reads as follows:-

Types 89M and 89P are essentially the same electrically.
In the 89Q, in place of the External Crystal Multiplier and Variable Frequency Unit, a Master Oscillator Unit and a Crystal Oscillator Unit have been incorporated. Either of these may be plugged in depending on which type of control, crystal or variable frequency oscillator is required. Type 89Q has an additional intermediate stage.

----------------------------------

I am not aware what (if any) external appearance changes the incorporation of 'a Master Oscillator Unit and a Crystal Oscillator Unit' would make


Little h
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  #2382  
Old 12-02-2018, 23:23
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Quote:
Originally Posted by harry.gibbon View Post
Mitch,

HMS Collingwood Historic Collection (CHC) (formerly the rnmuseumradarandcommunications2006.org.uk site) is a bit more lucid about the difference than that contained in the BR333.1 'thricer'. The CHC entry reads as follows:-

Types 89M and 89P are essentially the same electrically.
In the 89Q, in place of the External Crystal Multiplier and Variable Frequency Unit, a Master Oscillator Unit and a Crystal Oscillator Unit have been incorporated. Either of these may be plugged in depending on which type of control, crystal or variable frequency oscillator is required. Type 89Q has an additional intermediate stage.

----------------------------------

I am not aware what (if any) external appearance changes the incorporation of 'a Master Oscillator Unit and a Crystal Oscillator Unit' would make


Little h
Only remember using the Q with crystals but cannot remember its appearance. We had to 'detune' sometimes because it belted out too much juice and annoyed nearby ships.
However, even I remember this one and applying bluebell via cotton waste to its AE.
There used to be some D/F stations down the western Portuges coast. Handy for the Pilot when he could'nt shoot the sun. The skipper reckoned a pair of those bearings were more accurate than the sextant.
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File Type: jpg FM12.jpg (34.9 KB, 3 views)
File Type: jpg FM12 AE.jpg (89.2 KB, 2 views)
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  #2383  
Old 13-02-2018, 14:52
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TDC

But I need a minimum of 10 letters so take a gander down memory lane:

http://www.godfreydykes.info/JUST_A_...R_THINGS .htm
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  #2384  
Old 13-02-2018, 16:35
Dave Hutson Dave Hutson is online now
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Default Re: Communications in the Royal Navy

Quote:
Originally Posted by harry.gibbon View Post
With respect Chief Tel. - might I suggest the Transmitter Type 89M or 89P.

It might even be an 89Q, although I'm not sure if the difference could be established by the outward appearance of the 'Q' compared with the 'M' or 'P' versions


Little h
You certainly may oh Super Golly . Them sands of time sure shift ........ why ever did I think 87M ......... 89 series is more like ..... we had two 87's and one 89Q on Chevron in '55.

David now throws the FM12 into the pot ...... happy memories of that one on Undine in '54 chasing beacons and listening to Five Ton ..... Stavangar, Bushmills and one other spring to mind .....counting the beeps until they reached a continuous note and sending them relaying them up to the Navvy ..... seemed a bit arry tait at the time but as someone else has said extremely accurate position fixing. Anyone remember the other Northerly beacon. ? Not so happy tho' climbing out over the open bridge to clean the Bellini Tosi in bad weather which the Old Man always insisted on before entering harbour. But then what else were Boy Tels for

Dave H
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  #2385  
Old 13-02-2018, 17:09
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Originally Posted by Dave Hutson View Post
You certainly may oh Super Golly . Them sands of time sure shift ........ why ever did I think 87M ......... 89 series is more like ..... we had two 87's and one 89Q on Chevron in '55.

David now throws the FM12 into the pot ...... happy memories of that one on Undine in '54 chasing beacons and listening to Five Ton ..... Stavangar, Bushmills and one other spring to mind .....counting the beeps until they reached a continuous note and sending them relaying them up to the Navvy ..... seemed a bit arry tait at the time but as someone else has said extremely accurate position fixing. Anyone remember the other Northerly beacon. ? Not so happy tho' climbing out over the open bridge to clean the Bellini Tosi in bad weather which the Old Man always insisted on before entering harbour. But then what else were Boy Tels for

Dave H
Hows about the dit re reciprocal bearings Dave? Still can't remember it all only "bearing on the other ... lies"
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  #2386  
Old 13-02-2018, 22:33
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Default Re: Communications in the Royal Navy

FM12 used to sit on an out of the way shelf on 5 Ton and as a boy sparker I was tasked to sit in front of it and cover the silent periods.
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  #2387  
Old 14-02-2018, 11:10
Dave Hutson Dave Hutson is online now
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Default Re: Communications in the Royal Navy

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Originally Posted by Pelican View Post
Hows about the dit re reciprocal bearings Dave? Still can't remember it all only "bearing on the other ... lies"
I can't David but I would bet my tot that our Harry can ...... if he can't try Godfrey [Geoff] Dykes site.

Jan ... You and me both , never ever heard a distress on there thank the lord.

Dave H
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  #2388  
Old 14-02-2018, 15:49
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Exclamation Re: Communications in the Royal Navy

B40

See: http://www.portabletubes.co.uk/boats/murphy3.htm
And - http://www.shortwaveradio.ch/radio-e/murphy-b40-c-e.htm
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  #2389  
Old 14-02-2018, 20:08
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Default Re: Communications in the Royal Navy

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I can't David but I would bet my tot that our Harry can ......
Sorry to disappoint Chief Tel. .... good job the tot is no longer eh!! Still - you might want to offer a splash from your daily spirit allowance

All that my memory will allow to filter through to the grey matter is ... searching for a/the 'null'... however all is not lost and with the assistance of Jerry Proc's pages once again, I offer up the procedure in the hope that it might jog David/Pelican/Mousey into giving a recitation of his 'dit':-

The FM12 was a very good direction finding set for its day. In taking a bearing, the use of the multi-purpose switch was very important.
An operator would first tune in the signal of the target station with the Aerial switch in the search position.
Then, with the switch in loops, a minimum strength on the outside compass scale of the goniometer was found.
Lastly, the operator would place the Aerial switch in the sense position and would rotate the goniometer slowly clockwise.

If the signal faded away, the minimum position was the true bearing. Had the signal risen, it indicated a reciprocal bearing and true bearing would be found 180 degrees on the opposite side of the scale.



Source; JProc


Little h
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Last edited by harry.gibbon : 14-02-2018 at 20:23.
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  #2390  
Old 14-02-2018, 22:25
Mitch Hinde Mitch Hinde is offline
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Default Re: Communications in the Royal Navy

Quote:
Originally Posted by Pelican View Post
Only remember using the Q with crystals but cannot remember its appearance. We had to 'detune' sometimes because it belted out too much juice and annoyed nearby ships.
However, even I remember this one and applying bluebell via cotton waste to its AE.
There used to be some D/F stations down the western Portuges coast. Handy for the Pilot when he could'nt shoot the sun. The skipper reckoned a pair of those bearings were more accurate than the sextant.
Hi All

I well remember polishing those loops a few times, protect from the elements by smearing with Vaseline on completion.

Mitch Hinde
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  #2391  
Old 14-02-2018, 22:26
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Quote:
Originally Posted by harry.gibbon View Post
Sorry to disappoint Chief Tel. .... good job the tot is no longer eh!! Still - you might want to offer a splash from your daily spirit allowance

All that my memory will allow to filter through to the grey matter is ... searching for a/the 'null'... however all is not lost and with the assistance of Jerry Proc's pages once again, I offer up the procedure in the hope that it might jog David/Pelican/Mousey into giving a recitation of his 'dit':-

The FM12 was a very good direction finding set for its day. In taking a bearing, the use of the multi-purpose switch was very important.
An operator would first tune in the signal of the target station with the Aerial switch in the search position.
Then, with the switch in loops, a minimum strength on the outside compass scale of the goniometer was found.
Lastly, the operator would place the Aerial switch in the sense position and would rotate the goniometer slowly clockwise.

If the signal faded away, the minimum position was the true bearing. Had the signal risen, it indicated a reciprocal bearing and true bearing would be found 180 degrees on the opposite side of the scale.



Source; JProc


Little h
Yes the underlined statement is what the dit was based on Harry - I'm working on it.
It went a bit like this: If to clockward rise, ship on the other bearing lies, - but we were taught a different word to clockward ~~~ e.g. If to ??? signal rise ship on other bearing lies.
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  #2392  
Old 15-02-2018, 20:05
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Exclamation Re: Communications in the Royal Navy

UNDERSTAND THAT THIS IS A TYPE 12?
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Last edited by Pelican : 15-02-2018 at 20:06. Reason: Correction
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  #2393  
Old 16-02-2018, 13:04
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UNDERSTAND THAT THIS IS A TYPE 12?
And a Type 28.
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  #2394  
Old 16-02-2018, 21:10
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Default Re: Communications in the Royal Navy

I always found typing on the type 28 unnerving as they printed eight spaces behind the letter I typed.
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  #2395  
Old 17-02-2018, 13:55
Mitch Hinde Mitch Hinde is offline
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Hi All

Same here, I always remember 2cr 1line feed. Tried to do it when I first started using a computer and couldn't understand why it didn't work.

Mitch Hinde
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  #2396  
Old 17-02-2018, 16:56
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AN "INTERMEDIATE SIGNALLING LANTERN"

Just so the Buntings don't feel left out.
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  #2397  
Old 17-02-2018, 21:40
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Default Re: Communications in the Royal Navy

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UNDERSTAND THAT THIS IS A TYPE 12?

I had to strip and rebuild one of these on my REMs course back in the 50s.

After rebuilding had half-a-dozen bits left over and went to sweep them into the drawer beneath the bench. It was topped up with tens of leftovers!

Made me feel better. Strange thing was the damned thing worked without the bits I coudn`t refit.

Regards

Gerry
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  #2398  
Old 18-02-2018, 15:36
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DIMPS

Evidently not very popular?
Having never seen or heard of it I would not know.
Seems dimps belongs to the gamers now.
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  #2399  
Old 19-02-2018, 18:00
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Exclamation Re: Communications in the Royal Navy

TODAYS OFFERING

'Plugging system.'
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  #2400  
Old 19-02-2018, 20:21
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Default Re: Communications in the Royal Navy

I remember this system being sited inside the door of the Upper and Lower receiving rooms on the Lion and nearly identical on Dido years later.

Strangely I cannot recall anyone changing the plugs over or interfering with them in anyway. Seems that once the sparkers set them up they remained in that position for posterity!!!

Regards

Gerry
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