2019 Venge and EW-WU111
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If you have the 2019 S-Works Venge or Venge Pro, where are you putting the Di2 wireless transmitter EW-WU111? I have mine in the seat tube but i am getting occasional disconnect/reconnect on my Garmin Edge 820.
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I've never had any issues running the older Ant+ EW-WU-101 and current BLE EW-WU111 in my S5 seattube over the past 3 years.
That's paired with an Edge 1000, Edge 520 Plus and Whaoo Bolt.
That's paired with an Edge 1000, Edge 520 Plus and Whaoo Bolt.
SL8 S-Works Project Black - 6.29kg
IG: RhinosWorkshop
IG: RhinosWorkshop
On my Madone, I run it inline with the FD wire in the downtube. Obviously, our bikes are different, but you can pretty much put it anywhere.
Madone 9 - https://bit.ly/2Nqedbn
Emonda SLR - https://bit.ly/2UK5FP8
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Emonda SLR - https://bit.ly/2UK5FP8
Crockett - https://bit.ly/2Xem4sk
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Throw in my technical 2 cents.
While I've seen a lot of people say that placing a wireless transmitter inside a carbon fiber tube works "fine", I've actually seen on network vector and RF spectrum analyzers what you get. And it's a huge drop in RF performance. It's not as bad as inside a metal tube but think like -20 to -30dbm. A good signal starts around -30dbm, and thin carbon might be in the sub -20 range. So think of this as line of sight transmission but now at like 10 - 20 meters away. So combined -50 - -60dbm. Or your neighbours apple watch on the far side of their home.
A human body because of all it's water in practical varies a lot. But in practical areas where there is some reflection of the signal off stuff, I've seen it in about -15 to -40dbm. So a transmitter on your back in super flat open area is like line of sight 10 - 40 meters away. Now combine those. It's not like your transmitter is like 20 - 60 meters away.
The problem with the "works fine" statement is that because it's about 4hz ( I recently ripped open an original d-fly to reverse engineer it, video on my youtube) and so little meaningful data is tranmitted and changes. That means you can loose 75% - 88% of all transmissions before someone will notice a delay in the button response that is "abnormal". If you see it saying "connected" multiple times, your loss is about 95%+ or about 1 page every 4 seconds trips out system to search again for it.
So beware of works fine. The closer you can get it to your head unit if you stick it inside a carbon tube the better, so if you're passing this near 90% loss that you're noticing it, or if it's reconnecting at 95 - 98% loss (2 - 5 % making it), then I'd try and get it up to the downtube so the human waterbag problem at least goes away and that would probably be enough to solve your problems.
I don't have a 2019 Venge so specific placement advice I can't give.
While I've seen a lot of people say that placing a wireless transmitter inside a carbon fiber tube works "fine", I've actually seen on network vector and RF spectrum analyzers what you get. And it's a huge drop in RF performance. It's not as bad as inside a metal tube but think like -20 to -30dbm. A good signal starts around -30dbm, and thin carbon might be in the sub -20 range. So think of this as line of sight transmission but now at like 10 - 20 meters away. So combined -50 - -60dbm. Or your neighbours apple watch on the far side of their home.
A human body because of all it's water in practical varies a lot. But in practical areas where there is some reflection of the signal off stuff, I've seen it in about -15 to -40dbm. So a transmitter on your back in super flat open area is like line of sight 10 - 40 meters away. Now combine those. It's not like your transmitter is like 20 - 60 meters away.
The problem with the "works fine" statement is that because it's about 4hz ( I recently ripped open an original d-fly to reverse engineer it, video on my youtube) and so little meaningful data is tranmitted and changes. That means you can loose 75% - 88% of all transmissions before someone will notice a delay in the button response that is "abnormal". If you see it saying "connected" multiple times, your loss is about 95%+ or about 1 page every 4 seconds trips out system to search again for it.
So beware of works fine. The closer you can get it to your head unit if you stick it inside a carbon tube the better, so if you're passing this near 90% loss that you're noticing it, or if it's reconnecting at 95 - 98% loss (2 - 5 % making it), then I'd try and get it up to the downtube so the human waterbag problem at least goes away and that would probably be enough to solve your problems.
I don't have a 2019 Venge so specific placement advice I can't give.
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- Joined: Wed Apr 25, 2018 11:19 pm
Thanks for the response. The occasional disconnect/reconnect is not bothering me too much, yet. If it does, i'll move it to the downtube. I am hesitant to put it in the handlebar - i did that in the Shimano PRO Vibe aerobar on my Tarmac SL5 - because once it's in there, it's almost impossible to remove it for maintenance.kwakekeham wrote: ↑Tue Mar 26, 2019 4:41 pmThrow in my technical 2 cents.
While I've seen a lot of people say that placing a wireless transmitter inside a carbon fiber tube works "fine", I've actually seen on network vector and RF spectrum analyzers what you get. And it's a huge drop in RF performance. It's not as bad as inside a metal tube but think like -20 to -30dbm. A good signal starts around -30dbm, and thin carbon might be in the sub -20 range. So think of this as line of sight transmission but now at like 10 - 20 meters away. So combined -50 - -60dbm. Or your neighbours apple watch on the far side of their home.
A human body because of all it's water in practical varies a lot. But in practical areas where there is some reflection of the signal off stuff, I've seen it in about -15 to -40dbm. So a transmitter on your back in super flat open area is like line of sight 10 - 40 meters away. Now combine those. It's not like your transmitter is like 20 - 60 meters away.
The problem with the "works fine" statement is that because it's about 4hz ( I recently ripped open an original d-fly to reverse engineer it, video on my youtube) and so little meaningful data is tranmitted and changes. That means you can loose 75% - 88% of all transmissions before someone will notice a delay in the button response that is "abnormal". If you see it saying "connected" multiple times, your loss is about 95%+ or about 1 page every 4 seconds trips out system to search again for it.
So beware of works fine. The closer you can get it to your head unit if you stick it inside a carbon tube the better, so if you're passing this near 90% loss that you're noticing it, or if it's reconnecting at 95 - 98% loss (2 - 5 % making it), then I'd try and get it up to the downtube so the human waterbag problem at least goes away and that would probably be enough to solve your problems.
I don't have a 2019 Venge so specific placement advice I can't give.
What kind of maintenance do you need to perform?changrenyong wrote:
Thanks for the response. The occasional disconnect/reconnect is not bothering me too much, yet. If it does, i'll move it to the downtube. I am hesitant to put it in the handlebar - i did that in the Shimano PRO Vibe aerobar on my Tarmac SL5 - because once it's in there, it's almost impossible to remove it for maintenance.
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Just in case i need to take EW-WU111 out for troubleshooting, or if it becomes faulty and needed to be replaced.TonyM wrote: ↑Tue Mar 26, 2019 10:37 pmWhat kind of maintenance do you need to perform?changrenyong wrote:
Thanks for the response. The occasional disconnect/reconnect is not bothering me too much, yet. If it does, i'll move it to the downtube. I am hesitant to put it in the handlebar - i did that in the Shimano PRO Vibe aerobar on my Tarmac SL5 - because once it's in there, it's almost impossible to remove it for maintenance.
Hello all,
I have Venge Pro 2019 with di2 ultegra. For installation of bluetooth module do I need to buy andything additional to "EW-WU111", like extension cable (150mm -SD50 Di2 Electric Wire 150mm Black)?
Where is the most easiest to install this module ?
Thank you.
I have Venge Pro 2019 with di2 ultegra. For installation of bluetooth module do I need to buy andything additional to "EW-WU111", like extension cable (150mm -SD50 Di2 Electric Wire 150mm Black)?
Where is the most easiest to install this module ?
Thank you.
"Nothing compares to the simple pleasure of a bike ride"
My EW-WU111 sits in the seat post underneath the battery. The wiring has been done so the unit forms a junction, rather than 1 wire running to the main junction on the seatpost wihtout a break. If the seatpost needs to come off I can unclip the unit there and not touch the main junction box.
Signal is strong to the wahoo unit.
Signal is strong to the wahoo unit.
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