[TEC] Radio depth

Bubblehead1980 · 05-06-21, 09:08 PM

Issue want to correct for forthcoming TMO update (if possible) is should be able to send contact reports at periscope depth(from what understand fleetboats could and in sim already receive messages at periscope depth) not have to go to 35 ft or so exposing sub.

Which file(s) do need to look at? Have not located them thus far.

propbeanie · 05-06-21, 09:52 PM

I've been wanting to do that also. The subs could actually "talk" deeper than PD later in the war, so I was wondering about raising the level of the 'antenna' maybe, but haven't gotten around to experimenting with it yet. I haven't looked to make certain, but I think it is tied to "radar depth", aka: "Snorkel depth", or, if modded further - aka: "Decks Awash"...

KaleunMarco · 05-07-21, 10:24 AM

I agree. I would add length to the radio antenna such that it would break the surface at whatever depth you deem appropriate.

Why not make it match the periscope length. Then you can radio from PD.

ETR3(SS) · 05-08-21, 10:51 AM

I've changed it...somehow. All I can remember is that it is not something simple or obvious.

As for the radio side of things, this is where my experience comes in. Fleet boats had the following receiving radio sets:

RAK-6: This set covers the VLF, LF, and MF radio bands from 15 kHz to 600 kHz

RAL-6: This set covers the MF and HF radio bands from 300 kHz to 23 mHz

RBH-2: This set covers the MF and HF radio bands in frequencies from 300 kHz to 1.2 mHz and 1.7 mHz to 16 mHz.

The lower frequencies (VLF,LF) would be data only in the form of morse code, while the higher frequencies (MF,HF) would be voice circuits. As such receiving radio signals while submerged would only be possible on lower frequencies, with VLF being the best being able to penetrate to a depth of 40m or 131ft.

Now the transmit side of things:

TBL-5/6/7: Can transmit voice (75kHz-600kHz, 2mhz-18mHz) and data (175kHz-600kHz, 2mHz-18mHz) in the LF, MF, and HF ranges.

And the final puzzle piece, the antenna:

Note the Transmit Antenna and the separate Receive Antenna. In order to transmit and be received, that antenna needs to be out of the water. There are of course other antennas onboard but those are for LOS comms, basically short range.

propbeanie · 05-10-21, 12:32 PM

Surely it's a sim file setting... at least, I ~hope~ it is... lol - thanks for the info ETR3(SS)!

KaleunMarco · 05-10-21, 06:20 PM

Quote:

Originally Posted by propbeanie

Surely it's a sim file setting... at least, I ~hope~ it is... lol - thanks for the info ETR3(SS)!

the antenna length is in a sim file. C:\Ubisoft\FOTRSU 1.46\Data\Library\USSubParts\Sensors.sim

and stop calling me Surely.
(too easy to pass up)

propbeanie · 05-10-21, 10:42 PM

Surely is the one sitting behind you, with the pleated, short skirt, funky jacket, and saddle shoes with Bobby socks...

Bubblehead1980 · 05-11-21, 03:44 PM

[QUOTE=KaleunMarco;2747126]the antenna length is in a sim file. C:\Ubisoft\FOTRSU 1.46\Data\Library\USSubParts\Sensors.sim

and stop calling me Surely.
(too easy to pass up)

[/QUOTE

I have that file open in TMO. I do see a radar but no radio antenna , unles labeled something else. I see where on SensorType the radio antenna is an option along with visual, radar, etc

Jeff-Groves · 05-11-21, 04:23 PM

obj_Extensible has the radio option.
Only the German boats use it.
Not saying you can't cheat and do a US Sub that way.

ETR3(SS) · 05-11-21, 07:30 PM

I'm working on what it was I did to change it.

KaleunMarco · 05-11-21, 07:51 PM

Quote:

Originally Posted by ETR3(SS)

I think you're confusing radio and radar here. Also, this will not work. I'm working on what it was I did to change it.

you are correct.
please edit or delete your response as i have done to mine so that there is no confusion moving forward.

ETR3(SS) · 05-13-21, 05:57 PM

Still looking into the how I did this. I'll add this bit of info though, the game considers you either surfaced or submerged with no in between. Once flagged as submerged the radio is disabled along with the diesel engines, unless you have a snorkel equipped. New options become available once submerged as well like emergency surface, deploying decoys, and silent running. There is another controller for when the deck crew moves below decks that doesn't coincide with the surfaced/submerged flag. Using my Skipjack as an example, you can be "submerged" at 32ft with the bridge still manned until 35ft!

Thus far I've tried changing settings in the sim and cfg files to no effect. I want to say it's either 3d model based or node location based, which one of either one is anybodies guess at this point. I'm going to try to recreate one of the nuc subs this weekend and perform more rigorous testing to see if I can uncover an answer.

propbeanie · 05-13-21, 07:34 PM

I've been looking at the US subs in FotRSU, and none of them have a "real" radio, only a virtual one, attached to a virtual antenna, which visually is rendered as a part of the sub, not on its own node... Snorkel depth, or radar depth is when you can use the radio in FotRSU, but changing that would not be the way to get the radio to work, since they the radar would not work... it uses the underwater controller for on and off... in FotRSU, that is. A nuc, it wouldn't matter...

KaleunMarco · 05-13-21, 09:12 PM

Quote:

Originally Posted by ETR3(SS)

Still looking into the how I did this. I'll add this bit of info though, the game considers you either surfaced or submerged with no in between. Once flagged as submerged the radio is disabled along with the diesel engines, unless you have a snorkel equipped. New options become available once submerged as well like emergency surface, deploying decoys, and silent running. There is another controller for when the deck crew moves below decks that doesn't coincide with the surfaced/submerged flag. Using my Skipjack as an example, you can be "submerged" at 32ft with the bridge still manned until 35ft!

Thus far I've tried changing settings in the sim and cfg files to no effect. I want to say it's either 3d model based or node location based, which one of either one is anybodies guess at this point. I'm going to try to recreate one of the nuc subs this weekend and perform more rigorous testing to see if I can uncover an answer.

i can understand this explanation being reality....it is very UBI.

Jeff-Groves · 05-14-21, 11:30 AM

Quote:

Originally Posted by ETR3(SS)

I'm working on what it was I did to change it.

You did use a U-boat Snorkel.

05-06-21, 09:08 PM	#1
Bubblehead1980 Navy Seal Join Date: Apr 2009 Location: Florida USA Posts: 6,922 Downloads: 550 Uploads: 42	Radio depth Issue want to correct for forthcoming TMO update (if possible) is should be able to send contact reports at periscope depth(from what understand fleetboats could and in sim already receive messages at periscope depth) not have to go to 35 ft or so exposing sub. Which file(s) do need to look at? Have not located them thus far.

05-06-21, 09:52 PM	#2
propbeanie CTD - it's not just a job Join Date: May 2016 Location: One hour from Music City USA! Posts: 9,743 Downloads: 439 Uploads: 2	I've been wanting to do that also. The subs could actually "talk" deeper than PD later in the war, so I was wondering about raising the level of the 'antenna' maybe, but haven't gotten around to experimenting with it yet. I haven't looked to make certain, but I think it is tied to "radar depth", aka: "Snorkel depth", or, if modded further - aka: "Decks Awash"... __________________ "...and bollocks to the naysayer/s" - Jimbuna

05-07-21, 10:24 AM	#3
KaleunMarco Silent Hunter Join Date: Sep 2007 Location: Chicago area, which is more dangerous than Omaha Beach. Posts: 3,910 Downloads: 433 Uploads: 27	I agree. I would add length to the radio antenna such that it would break the surface at whatever depth you deem appropriate. Why not make it match the periscope length. Then you can radio from PD. __________________ there are only two things in the world: submarines and targets. Fortis et stabilis et fidelis, semper ------------------------------------------------------------ Silent Hunter 4 1.5 Gold Edition on CDROM LAA enabled Dell XPS with 32 GB Ram running Win10

05-08-21, 10:51 AM	#4
ETR3(SS) Ocean Warrior Join Date: Dec 2007 Location: Between test depth and periscope depth Posts: 3,021 Downloads: 175 Uploads: 16	I've changed it...somehow. All I can remember is that it is not something simple or obvious. As for the radio side of things, this is where my experience comes in. Fleet boats had the following receiving radio sets: RAK-6: This set covers the VLF, LF, and MF radio bands from 15 kHz to 600 kHz RAL-6: This set covers the MF and HF radio bands from 300 kHz to 23 mHz RBH-2: This set covers the MF and HF radio bands in frequencies from 300 kHz to 1.2 mHz and 1.7 mHz to 16 mHz. The lower frequencies (VLF,LF) would be data only in the form of morse code, while the higher frequencies (MF,HF) would be voice circuits. As such receiving radio signals while submerged would only be possible on lower frequencies, with VLF being the best being able to penetrate to a depth of 40m or 131ft. Now the transmit side of things: TBL-5/6/7: Can transmit voice (75kHz-600kHz, 2mhz-18mHz) and data (175kHz-600kHz, 2mHz-18mHz) in the LF, MF, and HF ranges. And the final puzzle piece, the antenna: Note the Transmit Antenna and the separate Receive Antenna. In order to transmit and be received, that antenna needs to be out of the water. There are of course other antennas onboard but those are for LOS comms, basically short range. __________________ USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine.

05-10-21, 12:32 PM	#5
propbeanie CTD - it's not just a job Join Date: May 2016 Location: One hour from Music City USA! Posts: 9,743 Downloads: 439 Uploads: 2	Surely it's a sim file setting... at least, I ~hope~ it is... lol - thanks for the info ETR3(SS)! __________________ "...and bollocks to the naysayer/s" - Jimbuna

05-10-21, 10:42 PM	#7
propbeanie CTD - it's not just a job Join Date: May 2016 Location: One hour from Music City USA! Posts: 9,743 Downloads: 439 Uploads: 2	Surely is the one sitting behind you, with the pleated, short skirt, funky jacket, and saddle shoes with Bobby socks... __________________ "...and bollocks to the naysayer/s" - Jimbuna

05-11-21, 03:44 PM	#8
Bubblehead1980 Navy Seal Join Date: Apr 2009 Location: Florida USA Posts: 6,922 Downloads: 550 Uploads: 42	[QUOTE=KaleunMarco;2747126]the antenna length is in a sim file. C:\Ubisoft\FOTRSU 1.46\Data\Library\USSubParts\Sensors.sim and stop calling me Surely. (too easy to pass up) [/QUOTE I have that file open in TMO. I do see a radar but no radio antenna , unles labeled something else. I see where on SensorType the radio antenna is an option along with visual, radar, etc Last edited by Bubblehead1980; 05-11-21 at 08:19 PM.

05-11-21, 04:23 PM	#9
Jeff-Groves Village Idiot Join Date: Sep 2014 Posts: 5,319 Downloads: 130 Uploads: 0	obj_Extensible has the radio option. Only the German boats use it. Not saying you can't cheat and do a US Sub that way. __________________ I don't do Stupid. So don't ask.

05-11-21, 07:30 PM	#10
ETR3(SS) Ocean Warrior Join Date: Dec 2007 Location: Between test depth and periscope depth Posts: 3,021 Downloads: 175 Uploads: 16	I'm working on what it was I did to change it. __________________ USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine. Last edited by ETR3(SS); 05-12-21 at 04:02 PM.

05-13-21, 05:57 PM	#12
ETR3(SS) Ocean Warrior Join Date: Dec 2007 Location: Between test depth and periscope depth Posts: 3,021 Downloads: 175 Uploads: 16	Still looking into the how I did this. I'll add this bit of info though, the game considers you either surfaced or submerged with no in between. Once flagged as submerged the radio is disabled along with the diesel engines, unless you have a snorkel equipped. New options become available once submerged as well like emergency surface, deploying decoys, and silent running. There is another controller for when the deck crew moves below decks that doesn't coincide with the surfaced/submerged flag. Using my Skipjack as an example, you can be "submerged" at 32ft with the bridge still manned until 35ft! Thus far I've tried changing settings in the sim and cfg files to no effect. I want to say it's either 3d model based or node location based, which one of either one is anybodies guess at this point. I'm going to try to recreate one of the nuc subs this weekend and perform more rigorous testing to see if I can uncover an answer. __________________ USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine.

05-13-21, 07:34 PM	#13
propbeanie CTD - it's not just a job Join Date: May 2016 Location: One hour from Music City USA! Posts: 9,743 Downloads: 439 Uploads: 2	I've been looking at the US subs in FotRSU, and none of them have a "real" radio, only a virtual one, attached to a virtual antenna, which visually is rendered as a part of the sub, not on its own node... Snorkel depth, or radar depth is when you can use the radio in FotRSU, but changing that would not be the way to get the radio to work, since they the radar would not work... it uses the underwater controller for on and off... in FotRSU, that is. A nuc, it wouldn't matter... __________________ "...and bollocks to the naysayer/s" - Jimbuna