[PSUBS-MAILIST] OTS

Tue Oct 16 08:05:20 EDT 2018

At Lake Tahoe we had consistent good communication with R300 with one exception, shallow water (50-70 feet) and a large horizontal distance (500 feet?) between us caused by strong winds pushing the topside boat away from the dive site.  On previous days we had the same horizontal distance or more, but R300 was in deeper water so communication was still good.  So the combination of depth and angle between units matters, but I will say that I was very impressed with the OTS equipment.  It just works.
Jon

      From: Alan via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Tuesday, October 16, 2018 2:14 AM
 Subject: Re: [PSUBS-MAILIST] OTS

Rick,Glad you are not suffering from the early onset of dementia!I still have most of the emails if you can't find them in the archives.Some times the emails don't show in the archives for a while.If Emile was getting reception 3000ft away you may get even morewith the OTS, but in the specs I've seen they always say that there is a broad range variation depending on wave & water conditions.DNV-GL require a range of twice your dive depth, but how that is quantified given the variations due to conditions, I don't know.Alan

On 16/10/2018, at 4:14 PM, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Thanks Alan I’ll start browsing the archives. I was on my sailboat June threw the end of August where we rarely had cell reception or wi-fi so I didn’t keep up with the outside world. I bought my OTS stuff about 5 years ago ( wishful thinking that I would have the sub done by now ) but I sure would like to get at least a thousand feet out of it or so. Rick 
On Mon, Oct 15, 2018 at 11:48 AM Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Rick,we had a good discussion on this subject back in mid July till round aboutAugust 2. You may be able to find it in the archives.Great getting older, we can all have a new discussion about something wethrashed out a month ago!Below is an email from Emile about a cheaper unit he recommends; howeverI could not find any information about how many Watts the unit was & to methat is a big factor affecting the range. I am guessing it is less than the OTSif they are not showing this important stat. Emile has had good range from it.Alan

All, Ocean Reef UW communication  might be  a alternative for those who want a cheaper alternative for OTS. I am using 2 M105 DC units for 5 years now and happy with it. They are more intended for recreational use that OTS but  the units give good quality sound even with the sub at 200 M (600 ft) deep and a Kilometer away on open sea! The M105 is meant as a surface unit but can be used inside a sub. http://diving.oceanreefgroup.com/accessory/m105-digital-dc/The M100  is a more compact unit  http://diving.oceanreefgroup.com/accessory/m100-g-divers-portable-surface-transceiver/ I am a reseller for Europe. Can give at least 10% discount to Psubs members.  Contact at www.nordicsub.comFor USA:  Operator at oceanreefgroup.com Best Regards, Emile van Essen The Netherlands   

On 16/10/2018, at 9:47 AM, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Thanks Jon

On Mon, Oct 15, 2018 at 10:46 AM Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

It was shallow Rick, about 40 feet max I think.  However we were able to communicate with Cliff no problem in Lake Tahoe and I think at one point he was down to 300 feet.  That was cold fresh water, not sure if warm salt water will make that big of a difference.
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