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View Full Version : Radar detectors - which values are correct?


jaxa
05-21-06, 05:35 AM
I've compared radar detectors values from stock SH3, GW and radar detection mod by Stiebler:

1. stock SH3:
FuMB1 Metox - 4000 m
FuMB7 Naxos - 7500 m
FuMB10 Borkum - 5000 m
FuMB26 Tunis - 10000 m

2. GW:
FuMB1 Metox - 4000 m
FuMB7 Naxos - 12000 m
FuMB10 Borkum - 8000 m
FuMB26 Tunis - 16000 m

3. Stiebler's radar detection mod:
FuMB1 Metox - 30000 m
FuMB7 Naxos - 15000 m
FuMB10 Borkum - 20000 m
FuMB26 Tunis - 30000 m

Historical values:
Metox - up to 34000 m (!) (Clay Blair 's "Hitler's Uboot War")
Naxos - about 8000 m (uboat.net), about 5000 m (FuMB Ant.11 antenna) or 20000 m (Fliege antenna) (www.radarworld.org, other military sites)
Borkum - ? (can't find range anywhere)
Tunis - 25000 m (Fliege antenna) - 50000 (Mucke antenna)(www.deutschesatlantikwallarchiv.de)


Do you know anything else? Which of them are correct?
Do you know any links to interesting sites about German uboot radar detectors?

Stiebler
05-21-06, 12:05 PM
It will doubtless astonish you, but the figures that I provided for Stiebler's radar detectors are approximately correct.

This is with the proviso that, owing to the earth's curvature, warships with radar can be detected at a shorter range than air-borne radar. Thus I have rounded down all radar detection values to 30000m.

The Naxos radar detection value was variable, depending on whether the aerial was manually rotated or not. With manual rotation, the receiver became more sensitive and had longer range.

The Borkum radar receiver in standard SH3 has probably been confused by the programmers with Wanze (which had a shorter range than Metox). However, I have supplied the correct information for Borkum.

There has been some criticism of these radar detection values on the grounds that they see too much, and air attacks become too infrequent. However, they were *intended* to provide as much warning as possible, and they only failed due to mechanical reasons or incorrect operation (or when the Allies introduced a new radar). By 1944, there was no reason for any U-boat to be attacked unexpectedly from the air, if the radar detection eqipement was in good order.

As I've pointed out elsewhere, it is a mistake to rely for information on amateur web-sites.

Stiebler.

NYGM Tonnage War Mod - HEAVILY TESTED Realism (http://www.subsim.com/phpBB/viewtopic.php?t=49428)

jaxa
05-21-06, 12:19 PM
Hi Stiebler, nice to read your post about German radar technology again - big piece of knowledge :up:

Do you know this site:
http://www.deutschesatlantikwallarchiv.de/radar/rtechnik.htm
I'm sure it will be interesting for you, if you don't know it.

Manock
05-21-06, 02:23 PM
Since WWII German radar detectors cannot detect Allied centrimetic radar used by the US from the beginning of the war, & fully implemented by the British from 1943 onward.

Who cares?

German detectors including snorkel technology were german arrogance that anybody could have something they could not understand.

Relying on your detectors no matter what model is a good way to get sunk.

Did I mention their continued use of enigma machines when it was obvious someone was reading their messages.

tycho102
05-21-06, 05:13 PM
Based on the bit I know about radar and 1940's receivers, I'd say Stiebler's mod comes pretty damn close. Airborne radar would be like a spotlight, of course. And ship based is dependent on transmitter height, as well as output.

With all the computer....uh.....malfunctions that I've been dealing with, I can't even remotely begin to keep up with all the mods. I've got so many DVDRW's full of various mods to sort through for all my games, I can't keep track of what version is where. However, I will be taking a gigantic look at Stiebler's.

The stock values are unnervingly horrendous. What the Heck was Ubisoft thinking?! Talk about arbitrary values!



"Hey dude! Let's see how far this laser pointer shines. That'd be about the distance you could've detected radar, don't you think?"

"Cool."

jaxa
05-23-06, 03:19 PM
Based on the bit I know about radar and 1940's receivers, I'd say Stiebler's mod comes pretty damn close. Airborne radar would be like a spotlight, of course. And ship based is dependent on transmitter height, as well as output.

With all the computer....uh.....malfunctions that I've been dealing with, I can't even remotely begin to keep up with all the mods. I've got so many DVDRW's full of various mods to sort through for all my games, I can't keep track of what version is where. However, I will be taking a gigantic look at Stiebler's.

The stock values are unnervingly horrendous. What the Heck was Ubisoft thinking?! Talk about arbitrary values!



"Hey dude! Let's see how far this laser pointer shines. That'd be about the distance you could've detected radar, don't you think?"

"Cool."

I've spent many times reading books and looking for good sites about German radar technology and I'm agree with tycho102 - Stiebler's values are the closest to real.
Unfortunately, there aren't many good sites about this subject, but you can check these:
http://home.hetnet.nl/~jangetongeren/radars/radarafkortingen.htm
http://www.ww2technik.de/dsub_vert.htm

If anybody knows any others, please inform me.

caspofungin
05-23-06, 11:32 PM
great sites, can't read german, but managed to muddle my thru 'em.

@jaxa -- do you know of any sites about asdic/sonar?

jaxa
05-28-06, 09:02 AM
I don't know German either, but I was looking for ranges and it wasn't problem to find values in text.
I didn't look at asdic/sonar sites, but if I find any, I'll send info for you.

pythos
05-28-06, 11:37 AM
Where do I find the set ranges in the game files. I checked basic, but may have passed over it.

coronas
05-28-06, 11:47 AM
Sensors_dat. Use MiniTweker for changing the distance values.
A question for Tweker gurus. What precise range is correct for respective radars? Thanks in advance.

jaxa
05-28-06, 12:05 PM
I think it's necessary to leave these value as it is - 0.