Are these radio or IR? Do they require line of sight?
266759
These are radio devices. Based on the digital FSK 2.4GHz radio wireless transmission. Each unit is a transceiver allowing each one to act as transmitter or a receiver. I have fired them well over 50 feet away from my camera.
266760
They work off of radio frequencies...you can be around the corner or outside and have the other remote inside and they will go off without a hitch! I love them, they haven't failed me yet.
266761
These are radio controlled. The great part of them is that they permit you to make changes to flash settings via the camera menu.
266762
They are radio . Great triggers require no line of sight . You can't beat them for the price .
994702
no, typical a unit such as DVD/TV/Receiver receives a IR signal from a remote. This is used to connect to a unit that sends a signal such that it mimics the IR from a remote thus changing channels etc. This would also connect to an IR repeater to let you hide your IR devices which are line of sight behind a curtain or door.
445720
If I understand the question correctly, when receiving an ir command there is a small led that indicates receiving signal Hope this helps
869546
Depends on the distance but for the most part they are meant to be used as a point to point. They are 5 Ghz I suggest Google search it and You tube search it to learn about set up and such.
268590
Check your programming. Make sure you have the ir/rf correct and devices assigned to the proper rf ports on the reciever.
1302060
Yes they need to be in line of sight of the transmitter or they will not work. All infrared headphones work that way.
1812463
The tuner can be mounted out-of-sight, however, I think the IR receive should be mounted insight of the remote control in order to receive remote control signals to operate. Test this by hiding the IR receiver under the dash (before complete install) then see if it can pickup remote control commands.
1028767
u can, but u need to get the programming software which can run u about an $40. i had 3 of them and they work fine within city obstructions about 2 miles before they start breaking up. Open range should garner more. I suggest dont pay more than $65 for each radio and if u need better range just out of the box, replace the antennas with an aftermarket reputable dealer. From my understanding its not repeater friendly and has enough ctcss and dcs codes to be interference free.
283558
The radio comes with a small Dipole ant that works OK, but as long as you can get a bare stripped wire of about 1 meter in length, that should work just fine for most appl. If you need to bring in far away FM, I would go with on of those outside UHF/VHF/FM ant, because they are all close in the freq. spectrum. FM is usually pretty easy, you can spread a flat ribbon 300 ohm cable, stripped, 18" to one side and 18" to the other taped on the wall. Have fun, Gary.
732499
Actually not much just connect the red wire to power and the black to grd , have an antenna connect that , check your SWR's make sure the are low on both lower and upper bands, and you're good to go
128053
I only know of what is written in the manual. They are IR waves and are supposed to NOT give EMF exposure.
369507
The system works with radio frecuency, line of sight is not necessary but concrete, brick or other very dense wall materials do limit its wireless range. The system has a range of well over 150ft. In line of sight conditions.
1493360
The 3.0 I bought are ir. You need direct line of sight to use some one passing will slightly interfere with signalWarning. Get two ear pieces (receivers ) it's takes like 8 to 10 hours to charge full. And batt only last for 3 to 4 depending on volume when they work the work well my mom is very hearing impaired and these help only wish battery lasted as long A personally I would not buy these again. At costco there is a paire of rf headphones 69dollars 29 hour battery life rechargeable
1743562
While it is an IR remote you don't need true line of sight like you do for a TV remote control. Part of the reason it is only rated for indoor play- in my experience I just needed to not have the remote control behind something- as long as it is out you don't have to worry about aiming it at the car.
212113
If you are able to use IR headphones now then no. However if you don't have an IR receiver then you will need one.
2017686
Only if your computer has an ir signal, Erich I don't think is very common. These are mostly for car entertainment.
88764
Yes it's using a wireless frequency and not infrared which requires line of sight. You will be a will to change the channel from outside or on a different floor. The product works pretty well, and I would definitely by again if mine broke. The only issue I have had is getting the blaster to stay in front of the cable box. I rigged it with tape