Jabra sudden significant loss of range

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networkn

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#208545 16-Feb-2017 12:28

I have a Jabra Pro 9470 headset, which has been excellent.

A few months ago, pretty much overnight, I noticed that people were complaining that if I walked away from the base unit in my office, they couldn't hear me and I was cutting out.

The supplier has no idea and suggested a new battery (significant cost), even though the battery seems to be lasting a pretty long time.

I don't see any other changes in my configuration or layout so I am trying to determine what could be the issue and how I can fix it.

It's an expensive unit I don't want to replace unless it's absolutely required.

Disrespective

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#1721235 16-Feb-2017 13:17

Can you test the unit outside? Or better yet, at another location altogether? This would rule out any localised interference/range issues at the least.

gehenna

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#1721243 16-Feb-2017 13:30

Seems like interference. What's new in the vicinity?

networkn

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#1721244 16-Feb-2017 13:32

They are building a freaking massive bunnings next door. The only new thing in our office would be a 5Ghz Wireless Access Point (Prior was 2.4G).

How do I determine what frequencies it's using to communicate between the headset and base station?

Disrespective

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#1721246 16-Feb-2017 13:40

What frequency does the Jabra transmit on? If it's 5.8GHz then you could easily be getting interference. Are you able to change the channel the wifi AP operates on? You could look to drop down to some of the lower channels (36-48) to see if that reduces the trouble.

networkn

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#1721247 16-Feb-2017 13:42

I'm assuming it's DECT but honestly I don't know what that means in terms of actual frequencies.

richms

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#1721252 16-Feb-2017 13:48

There are many dect varients, hopefully it is the correct one because I recall that the US dect channels conflict with cellular for the rest of the world which is why they have big signs up at hong kong airport about not bringing in dect stuff.

Perhaps bunnings have put in a large commercial dect system for the phones they all wander around with and never answer? Or just a broken antenna in the headset or base. Spectrum analyser to see what the noise is like around there, and trying somewhere else to see if the range is still trash are the 2 options left really.

Richard rich.ms

networkn

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#1721254 16-Feb-2017 13:57

Well the datasheet for this model just says "secure dect" nothing about frequencies. Hopeless.

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neb

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#1721437 16-Feb-2017 16:49

networkn:
They are building a freaking massive bunnings next door. The only new thing in our office would be a 5Ghz Wireless Access Point (Prior was 2.4G).

How do I determine what frequencies it's using to communicate between the headset and base station?

Where are you located? I've got a spectrum analyser you could borrow...