<div dir="ltr"><span style="font-size:13.1999998092651px;line-height:19.7999992370605px">You can't compare home range with commercial range. Many commercial buildings have far more challenging environments as far as noise and blocking surfaces. Going from one floor to another is always worse than horizontal range for a variety of reasons. For example, antennas are generally oriented to spread signal horizontally, but not vertically. The higher the dB gain, the more true this is. My best guess is that a DECT base probably has a 3dB antenna, which means 3dB more power to the sides as to the top. Every 3dB is a doubling of the power, because it's a logarithmic scale. Most commercial buildings employee concrete/rebar between floors, unlike the simple wood in most homes. Both of those are terrible for radio signals.</span><div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br></div><div style="font-size:13.1999998092651px;line-height:19.7999992370605px">I've covered single-story 2k square foot restaurants with DECT, but they could barely make the phone work when going next door to their offices in another suite. In a commercial office environment I've found that roaming floors with DECT was a total failure.</div><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><br><div><br><div class="gmail_quote"><div dir="ltr">On Tue, Sep 8, 2015 at 12:49 PM Alex Balashov <<a href="mailto:abalashov@evaristesys.com" target="_blank">abalashov@evaristesys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 09/08/2015 03:35 PM, Carlos Alvarez wrote:<br>
<br>
> The challenge with DECT is that "range" is relative to a single base<br>
> station/AP versus roaming between base stations/APs.<br>
<br>
Also: just how much range do you need in a restaurant, unless the<br>
restaurant in question is the residence of Sheikh Mohammed bin Rashid al<br>
Maktoum?<br>
<br>
You and I both have Plantronics CSxxx DECT headsets and the range is<br>
very impressive. In my case with the CS540, I can straight-up leave the<br>
building, on whose third floor my office is situated, go through the<br>
parking deck, and take a walk up the road without any degradation.<br>
<br>
-- Alex<br>
<br>
--<br>
Alex Balashov | Principal | Evariste Systems LLC<br>
303 Perimeter Center North, Suite 300<br>
Atlanta, GA 30346<br>
United States<br>
<br>
Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)<br>
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