[PSUBS-MAILIST] OTS comms headset.

Fri Nov 20 17:06:31 EST 2020

 David, let us know what you discover from bench testing.Cliff
    On Friday, November 20, 2020, 03:51:38 PM CST, David Colombo via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Cliff, I have a spare headset that I am using for parts. It will be a perfect test rig for your idea which I like a lot. The vhf radio I have in the SeaQuestor unfortunately does not have a removable mic chord, so I will have to play around with the wiring a bit. I might be able to wire the switch in my flight stick which has a toggle feature on one of the switches. Time to build a test rig.
 Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com

On Fri, Nov 20, 2020 at 9:46 AM Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 I for one like the OTS combination headset and boom mike for operations inside my boat.  It feels rugged and robust.   As I am a one-man sub, I don't have the issue that Alec has of trying to listen to comms on the headset as well as a passenger in the boat.  Having said that, I do have one gripe with the installation on my boat. When I switch between  the OTS radio, with it's associated headset and boom mike, and surface comms using a marine VHF radio and speaker with its associated mike, I have to pull the headset off and leave it dangling on my neck.  The switching back and forth is bothersome.  As such, I took the OTS headset and boom mike apart to see how easy it would be to combine the operation of the two radios by utilizing the boom mike on the OTS radio for the VHF radio and piping the VHF speaker output to the speakers in the OTS head set.  The thought was to add a switch to the OTS headset or to VHF radio case to switch between VHF and OTS comms. This would solve the problem of switching between radios when diving or surfacing. The electronics in the OTS gear looked straight forward to understand but I got distracted on other stuff and never finished the project.  I have no experience with audio electronics so was unsure if the mike and speakers were compatible.   I am still interested in doing this so if someone with audio electronics expertise on the list  wants to take a crack at it, I would be willing to lend the my radios and OTS headset.  Contact me off list at cliffordredus at sbcglobal.net if you want to discuss.
Cliff
    On Friday, November 20, 2020, 07:55:11 AM CST, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

  David, let Hank have it.  I'm in the process of providing an open-source DIY version of my SEM project to the group as a community contribution so don't want to take advantage of the situation and "sell" it to you then make it available to everyone else for free a month later.  As well, I find the OTS headset overly heavy and bulky especially within the confines of the submarine.  That's one reason I'm interested in a lightweight alternative.
Jon

    On Thursday, November 19, 2020, 06:31:03 PM EST, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

  David, if you are selling the head set I will take itHank
    On Thursday, November 19, 2020, 2:28:42 PM MST, David Colombo via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Bid and bid fast.
On Thu, Nov 19, 2020, 1:00 PM David Colombo <seaquestor at gmail.com> wrote:

Jon, I might have an extra OTS headset. I had 6 at one point. Wanna trade for one of your electronic goodies??
Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com

On Wed, Nov 18, 2020 at 9:18 PM Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Nice score Sean.  That is an excellent price point for that unit second hand.
Alan, I, and a few others have discussed a DIY conversion in the past.  There's nothing magical about the OTS headset and microphone so should be many possibilities to use off the shelf "gamer" headsets as a replacement.  I plan on doing this with the STX-101 since I intend to use it with a headset inside the submarine, however I am not going to pay $460 for the OTS headset.
We have talked to OTS in the past and they were not willing to provide PSUBS with a discount.  Likewise, I personally spoke with the owner of DiveLink years ago and he flat out told me, no discounts.
Jon

    On Wednesday, November 18, 2020, 06:56:16 PM EST, irox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Congrats on the price (compared to new anyway)!
The $730 price tag for the CDK-6 is a bit tough to swallow.  The transducer extension cable is $270, sothat's $460 for the head phones, microphone and headset connector...
If we could source (or design) a compatible connector we could potentially save $100s by building out ownsurface conversion kits.   Since the transducer extension cable comes in a 55' length, it would be used tomake many conversion kits.  For the connectors, if they are for using inside the sub, they don't need to bepressure resistant connectors, they just have to work properly, if not thing is available off-the-shelf we coulddesign and 3D print a compatible connector.  But for the end attaching to the transducer we would definitelyneed something that is pressure resistant.  Might not be feasible, but given I'll likely have to buy two CDK-6sets it seems worth exploring.
Has anybody talked to OTS about psubs?  Might they be interested in helping us?  
Cheers!  Ian.

-----Original Message-----
From: "Sean T. Stevenson via Personal_Submersibles" 
Sent: Nov 18, 2020 12:24 PM
To: personal_submersibles at psubs.org
Subject: Re: [PSUBS-MAILIST] OTS comms

It was me. Having a second unit will allow me to test them against each other now to see if I inadvertently bought a dud.

That said, now I need to decide whether I want to buy a CDK-6 conversion kit to gain wireless 1:1 surface to diver capability, or upgrade my second FFM with comms for wireless 1:1 diver to diver capability. I already have hardwire surface to diver comms, so I'm leaning towards the latter. 

This is getting to be an expensive experiment.

Sean

-------- Original Message --------
On Nov. 18, 2020, 11:41, irox via Personal_Submersibles < personal_submersibles at psubs.org> wrote:

Did somebody on psubs get it?  
It ended up selling for $485.00, which seems like a great deal compared to the other offerings.
Ian.

-----Original Message-----
From: David Colombo via Personal_Submersibles 
Sent: Nov 12, 2020 4:56 PM
To: Personal Submersibles General Discussion 
Subject: Re: [PSUBS-MAILIST] OTS comms

Hi Sean,I might next week. I will let you know if I do. I will ultimately need one for the SeaQuestor, since I borrowed it for the yellow sub. 
Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com

On Thu, Nov 12, 2020 at 6:14 AM Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

David, are you bidding? Otherwise I will, again maxing out at about 1/2 of MSRP.

Sean

-------- Original Message --------
On Nov. 12, 2020, 06:51, Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote:

 For anyone looking and wanting to coordinate with others, I just got notification of this unit on Ebay.

Ocean Technology Systems Aquacom SSB-2010 | eBay

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Ocean Technology Systems Aquacom SSB-2010 | eBay

Up for grabs is a really clean SSB-2010 transceiver. Not the smaller, less powerful buddy phone.
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