Sena SR10

Discussion in 'Equipment' started by Tesla, Jul 4, 2011.

  1. tiki01

    tiki01 Adventurer

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    If a passenger and I were both using SMH10 units, and I paired an SR10 with my SMH10 unit and connected a GPS (Garmin Montana) to the SR10, I would be able to hear GPS instructions from the Montana. Is there a way to set this up so that the passenger can also hear the GPS instructions as well?
  2. BlueLghtning

    BlueLghtning Riding is my passion

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    Nope, the SR10 only can pair to one Headset at a time. The SM10 can pair to two headsets at one time, but then you are using your A2DP connection for both of you which takes up your only music connection on each of your SMH10 headsets. Now if you wanted to share your music and pump that in through the SM10, that could work for you

    Sent from my Galaxy Stellar on tapatalk
  3. TowPro

    TowPro Lets ride

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    When I ride with my wife or nephew, I turn the intercom on full time. Plus I have my Montana hooked to my SR10, which is connected to my SMH10. I am pretty sure when the montana talks, I will miss what the passenger says if they are talking.

    I also think I remember that my nephew was telling me he could hear my montana. It might be that my speakers are loud enough, that my mic pickes up the sound and he hears that.

    I just wish the montana would open the audio channel first, then wait 1 or 2 seconds before talking, I always miss the first words of the montana.
  4. lmychajluk

    lmychajluk Long timer

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    I just set up my SMH-10 and SR-10 combo and tried it out for the first time today and have the same problem. I hear "7 miles turn right" instead of "In point 7 miles turn right". Other than that, I'm pretty happy with the setup!
  5. BlueLghtning

    BlueLghtning Riding is my passion

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    I don't have a montana, so not sure if it has this, but I remember past GPS having an optional "tone" that would ding before giving the instructions. It was pretty annoying and I think they are starting to disappear from GPS's, so it may not have it, but if it does, that would give you an extra second or two for the SR10 channel to open up.
  6. TowPro

    TowPro Lets ride

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    I have emailed the montana team about this, but got no reply.
  7. lmychajluk

    lmychajluk Long timer

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    I've submitted a Support Case on it, but recieved a reply to suggest it at http://www8.garmin.com/contactUs/ideas/. Probably won't go anywhere.

    I did check that I do have the tones enabled as well, which I did.

    On a side note, I'm looking to just leave the SR10 under the seat. It would be great if it would just switch on with the bike so I don't have to lift the seat each time I get on as well as remember to charge the unit. It seems that the Cigarette Lighter plug will switch the unit on/off with a switched circuit on the bike. I can wire in a female cigarette plug, but for a cleaner install, can I cut the USB port off the cigarette plug (or the USB / Data cable?) that came with the unit and wire the power leads to a switched circuit in my FuzeBlock? Would it also turn the unit on/off w/ the bike power, or is there something special about the Cigarette Lighter plug?

    While I'm at it, why are there different part #'s for the SMH-10 and SR10 chargers and data cables???:jjen
  8. TowPro

    TowPro Lets ride

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    I was told the 12V Sena cable made for the SR10 turns the unit off when the power goes away. Not sure if it comes on when you apply power, but it would make sense if it did.

    this cable is wired different then the standard USB cable.
  9. lmychajluk

    lmychajluk Long timer

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    Right... but I wasn't sure if it's the cable, or the device. For example, I think some portable GPS units will turn on when power is applied (my old StreetPilot III comes to mind, which had an 'Auto Power' setting in the menu). Anywho... I did some experimenting in the garage tonight after wiring in a FuzeBlock. I got a cheap female cigarette plug from Radio Shack and wired it up. Works fine w/ the SENA cigarette power cable - turn the bike on, power is applied to the circuit, and SR10 comes on. I then swapped the cigarette power cable for the USB cable and a USB cigarette power adapter. This will charge the SR10 (red light comes on), but won't trigger it to come on. So, now, I'm wondering it there's something in the plug end, or just an extra pin in the USB mini-jack. Revzilla has the cables for $5, so maybe the next time I order something from them, I'll splurge and get the cable, cut the plug off, and see if it'll work wired direct. It'll go a long way towards cleaning up the wires under the seat.
  10. D'Artagnan

    D'Artagnan Sharp and Pointy

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    A lot of USB chargers use only Pin 1 and 4, this is where the 5 volts for charging sits. Apple also puts resistors across the data lines (pins 2 and 3) in the charger. Different resistor values put different voltages across the data pins. Depending on the voltage drop, the device being charged (iphone, iPad, etc.) knows if it is hooked up to a 500mA iPhone Charger or the 1200mA iPad charger. The device is then able to set how fast it will draw the current. This is why Apple products will not charge on some of the genereic chargers. No voltage drop across the data pins, no charging. This is probably done to protect the charger and the device.

    The same kind of thing could be happening with the Sena units. There could be resistors in the charger letting the Sena device know what kind of charger it is plugged into. The generic charger won't have those resistors, and while it will still charge, won't turn on since it may just be plugged into a wall charger.

    A lot of generic charging units are using a 200 ohm resistor across the data pins or just shorting them together, now.
  11. D'Artagnan

    D'Artagnan Sharp and Pointy

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    Forgive me if I am mis-reading this. Are you talking about cutting the cigarette lighter adapter off of the charging cable, then wiring the cable straight to the 12v fuse block on your motorcycle? You will fry the Sena if you do this. All USB connection are 5V. The adapter is more than just a plug, it lowers the voltage.
  12. lmychajluk

    lmychajluk Long timer

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    No, you read that right, I just didn't think it all the way through. :D

    Maybe what I'll do then is just wire up another female cigarette adapter or 2. Then I can use 1 for the SR10 w/ the factory cord, and have a couple more for whatever I need in the future.
  13. devians

    devians n00b

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  14. lmychajluk

    lmychajluk Long timer

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    I saw that a couple of weeks ago. As far as I can tell, the only difference is the package contents. The non-'i' seems to include more accessories (PTT button, etc...).
  15. lmychajluk

    lmychajluk Long timer

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    Anyone know if there's an extension cable that will work with the SR10's headset jack? I just got the Kenwood cable (dual-pin) and I don't think the 9" is going to cut it as far as reaching the SR10 that's under my seat.
  16. TowPro

    TowPro Lets ride

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    last I heard they were going to sell a uneversial cable so us Hams can wire our own jacks on the end. You could extend that one.
  17. lmychajluk

    lmychajluk Long timer

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    That cable is up on thier site (link). It doesn't help much, as it's still only 9" long, and I'd have to attach the dual Kenwood jack anyway. Seems like a PITA to have to go through all this. Based on the info in the link, I should be able to use a 'Hirose 6-pin' extension cable, but the only one I can find is $90 for a 3' cable! If I can figure out the correct 6-pin adapters, I should be able to get them and make an extension cable for around $25.
  18. BlueLghtning

    BlueLghtning Riding is my passion

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    What about a kenwood extension cable? Do they even make one? That might be cheaper on that end. Basically a cable that has female hookup on one end and a male on the other just to extend what you already have?
  19. lmychajluk

    lmychajluk Long timer

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    I'll have to look into that... It seemed like an odd thing to have (with the dual pin), but I suppose it's possible.
  20. BlueLghtning

    BlueLghtning Riding is my passion

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    I wanted to respond to this thread as I discovered some interesting things today. My buddy and I just both got our SR10's wired up yesterday to connect to our FTM-10 radio's and used them today on a bicycle ride event. We both have Sena SMH10's, and now SR10's and he's get the FTM-10R, and I have the FTM-10SR.

    Previous to this, we both were just doing direct BT connections form the SMH10 to the BU-1 chip in the FTM-10, but neither one of us liked the toggle effect to key up the radio, nor the fact the audio connection stays open 100% of the time when you do it that way.

    We had 2 different issues we found today. He did some audio testing on his yesterday and it sounded good, but then today, he had a horrible feedback in the background. It was so bad, at times no one could understand him. He was just about to revert back to his direct BT connection when him and I met up and I noticed he had his SR10 plugged into a cig plug and sure enough when he unplugged it and ran off the SR10 battery, his issues went away. Since the SR10 battery life is so good, there really is no reason to actually run the SR10 powered off a USB plug IMOP. Just charge it up when you are stopped.

    My issue was also interference, but not from what I expected. I have 2 cell phones and most times, I keep them plugged in on a bike, especially on an event like this where I'm running APRS off one cell phone and GPS/maps off another one. To charge my phones, I have one of those 2 port USB cig plugs with a 1A charger and a 2.1A on the other slot. That is plugged into a 3 port cigarette adapter that is connected directly to my battery tender plug. I run my GPS off there too. Well I noticed today I was constantly dropping the repeater in places I shouldn't have been and even at times couldn't even hold a steady connection to the repeater it when I wasn't that far away. I started unplugging stuff to trouble shoot my setup and realized this cheap little 2 port USB charger plug I use to charge my phones is a huge culprit in interference. Not only does it severely cut down my receive audio and distance, it drastically reduces my transmit audio also. One of the cell phones wasn't even BT into the equation, and the other was only BT directly to the Sena SMH10 headset, so neither one was directly connected to the SR10, but just being plugged in and that close to the bike electrical stuff was enough to cause issues and introduce all that feed back into the system. I tried another buddies 2 prong plug also, but his did the same thing. It was actually pretty amazing how much it affected the setup, just plugging in the phones. I ended up just leaving my cell phones unplugged until I stopped and then would give them a boost so I could make it through the day on them.

    So make sure you check and verify other items powered off your bike because I would not have expected one of those cell phone charges to cause so much issues since it really isn't tied into the ham radio part of the equation.