Radar Repair
 

Does anyone no any good books on marine radar repair?

In article
,
"M.F." wrote:

Does anyone no any good books on marine radar repair?


Unless you hold a valid General Radiotelephone Operators License with
Radar Endorsement, you are not allowed under US Law, to work on
Commercial Marine Radar Equipment.


Me who has one of those.........

On 2005-02-13 06:54:56 +1100, Me said:

In article ,
"M.F." wrote:

Does anyone no any good books on marine radar repair?


Unless you hold a valid General Radiotelephone Operators License with
Radar Endorsement, you a

Not everyone lives in the USA mate! I would be interested in seeing
what is out there too.

--
Regards,
John Proctor VK3JP, VKV6789
S/V Chagall

In article 2005021307093975249%lost@nowhereorg,
John Proctor wrote:

Not everyone lives in the USA mate! I would be interested in seeing
what is out there too.

--
Regards,
John Proctor VK3JP, VKV6789
S/V Chagall

That is true, but if you looked at the Headers of the OP, you would
notice that the OP DOES live in the US, "Mate".....

Me

On 2005-02-14 05:13:42 +1100, Me said:

In article 2005021307093975249%lost@nowhereorg,
John Proctor wrote:

Not everyone lives in the USA mate! I would be interested in seeing
what is out there too.

--
Regards,
John Proctor VK3JP, VKV6789
S/V Chagall

That is true, but if you looked at the Headers of the OP, you would
notice that the OP DOES live in the US, "Mate".....

Me

And the question still stands for those interested in acquiring some
knowledge. Are there any good books on Radar technology
operation/repair?

BTW mate is a bloody good Aussie word meaning friend! So don't take offence.

--
Regards,
John Proctor VK3JP, VKV6789
S/V Chagall

Me wrote:

In article
,
"M.F." wrote:

Does anyone no any good books on marine radar repair?


Unless you hold a valid General Radiotelephone Operators License with
Radar Endorsement, you are not allowed under US Law, to work on
Commercial Marine Radar Equipment.

Me who has one of those.........

I have a GROL with a radar endorsement and would still like to find a
good book on modern radar repair. The FCC test is based on vacuum tube
technology that hasn't been used since the 70's

In article ,
halibutslayer wrote:

I have a GROL with a radar endorsement and would still like to find a
good book on modern radar repair. The FCC test is based on vacuum tube
technology that hasn't been used since the 70's

True enough. Most of the technical stuff involved in maintaince of
modern Maritime Radars would be in the OEM's Operations and Maintainance
Manuals and 99% of the Qualified Tech's in the field gained their current
knowledge via OJT, and not from books that would be obsolete before they
gained an circulation. The basics of Radar Technology was worked out at
MIT in the late 30's after trading the British Magnitron Prototype
for all those Lend - Lease Destroyers.

Bruce in alaska who also has one of those things on the wall......
--
add a 2 before @

"Bruce in Alaska" wrote in message
...
In article ,
halibutslayer wrote:

I have a GROL with a radar endorsement and would still like to find a
good book on modern radar repair. The FCC test is based on vacuum tube
technology that hasn't been used since the 70's

True enough. Most of the technical stuff involved in maintaince of
modern Maritime Radars would be in the OEM's Operations and Maintainance
Manuals and 99% of the Qualified Tech's in the field gained their current
knowledge via OJT, and not from books that would be obsolete before they
gained an circulation. The basics of Radar Technology was worked out at
MIT in the late 30's after trading the British Magnitron Prototype
for all those Lend - Lease Destroyers.

Bruce in alaska who also has one of those things on the wall......
--
add a 2 before @

I also would be interested in what current books or in depth magazine
articles are out there. The days of servos and synchros, long wave guide
runs full of water, etc., are long gone, as are vacuum tubes (except for
maggies). I work on radars quite a bit and a good service manual for the
unit is invaluable, as is a spare magnetron and a spare MIC. Substituting
those one at a time solves the majority of the problems, along with motor
replacement and bad modulator or signal processor circuit assemblies. The
modulator FETS and the power supply FETs fail quite a bit also. And of
course, water damage problems are usually the result of poor installation or
exposed locations.
Although I have seen Raymarine equipment corroded, the problem is always
poor installation. The other brands are just as likely to come in encrusted
with salt, etc. The guys who insist on mounting the all around light in the
lid of a radome are just setting themselves up for water damage later on.
A cheap test instrument for radar transmission is one of those under $ 10
microwave oven leakage meters. Of course, the old neon bulb on a wooden
dowel still works also.
Doug K7ABX

"Bruce in Alaska" wrote in message
...
In article ,
halibutslayer wrote:
True enough. Most of the technical stuff involved in maintaince of
modern Maritime Radars would be in the OEM's Operations and Maintainance
Manuals and 99% of the Qualified Tech's in the field gained their current
knowledge via OJT, and not from books that would be obsolete before they
gained an circulation. The basics of Radar Technology was worked out at
MIT in the late 30's after trading the British Magnitron Prototype
for all those Lend - Lease Destroyers.

Bruce in alaska who also has one of those things on the wall......
--
add a 2 before @

That triggered a nostalgic moment Bruce, I recall reading the entire series
of the MIT Radiation Lab textbooks published at the end of WWII. The books
had quite a bit of dust on them in my college library when I found them in
the early 60s. It turned out one of my school's physics professors (actually
vice president of the college by then) had written one of them. I think we
more that got our money's worth in the lend-lease trade for the technology
transfer/catalyst from the UK.
Doug K7ABX

Bruce in Alaska wrote in news:bruceg-
:

gained an circulation. The basics of Radar Technology was worked out at
MIT in the late 30's after trading the British Magnitron Prototype
for all those Lend - Lease Destroyers.

Bruce in alaska who also has one of those things on the wall......


Huh?? The first radars were on VHF! They operated on common vacuum tubes,
not microwave magnetrons. http://www.bbc.co.uk/dna/ww2/A591545