I have the hisonic hsu 482 i cant open both channel on wirless lav mics please help !!!

This will never work together. They are on different frequencies

Process of elimination needed. Plug a corded mic into the wireless channel. Does it also cut in and out? If not then it sounds like the wireless is the one cutting in and out...not unusual for cheap units. Your wireless is not a cheapie? Then check the wireless squelch setting located on the receiver as it may be set too high.

it got disconncted

Try switching mic's with known good system. The small diameter cable going to headset and lav mic's are easily damaged. If the mic feeding the bodypack is good, fresh battery, mute disengaged and channels set properly then it's Shure factory service time.

common problem bad solder joints in the vco circuit take it to a PROFESSIONAL

There should be just one center conductor and a shield. It's tricky but, these can be spliced. Some just have two conductors, no shield -- this is easier to splice.

This is probably interference in the wireless connection for the lavalier mic.
Try switching channels to find a clear one!
Or switch to a wired lav mic if that's practical.

For audio expertise and PA system help with feedback and noise, try our new DVD "PA Systems for Small Groups" at www.whamuniversal.com

Hi, on the left side of the camera you can set 'audio monitor'. Default is channel 1/2. You can choose to listen to 3/4 or 1/2 and 3/4 simultaneous.
In the menu of the cam you can set between 12 bit audio recording or 16 bit. 16 bit only records on channel 1/2 (the front mic). In 12 bit mode you can record audio on 4 channels.
hope this answers a bit of your question

A walkie talky as we called them, back when we were younger - and hell we probably still do in some respects, hence the fact my friend still refers to her cordless phone as a "walkie talky" and the principals haven't changed that much.

The common old Walkie Talky or CB radio use what we call a half duplex, that means only one person can talk at a time. We are talking and listening on the same channel.

Cell phones are full duplex, meaning two way conversation, and this is simply listening on one channel whilst talking on another, so the basic principal is basically the same, just a little more sophisticated.

Walkie-talkie typically has one channel
CB radio has 40 channels.
Cell phone can communicate on 1,664 channels or more!

I have included a link to a circuit diagram.

http://www.freeinfosociety.com/electronics/schemview.php?id=1870

There is also two links below, building the transmitter & receiver.
Transmitter: http://www.zen22142.zen.co.uk/Circuits/rf/2bjttx.htm
Receiver: http://www.electronics-tutorials.com/receivers/regen-radio-receiver.htm

Trust this helps, and please take the time to rate the answer given, thank you.

Hi I hope this will help http://www.dvcentral.org/tricks.html Tricks 4 XLR ins: Get the Canon MA-300 adapter and get yourself 4 XLR inputs. Perfect for a couple of wireless lavs, a boom, and another mic. Sure, it's less data for the audio channels, but it's plenty for voice recording. Sure, you can't digitize audio 3&4 easily, but it is possible, and it's just so darn useful to have four audio channels in the field. (Also, you can easily mount the wireless lav receivers right on the back of the camera.) Using the Canon on-camera mic via an XLR input: Say you're using a single boom mic, inputting via XLR 1. You've got XLR 2 doing nothing, and the on-camera mic doing nothing. Seems a waste. Well, all you need to do is adapt the on-camera mic to input through XLR 2. A short female-mini-to-male-XLR adapter will do for the audio signal, but the mic needs power. Simple, just get a short micro-mini extender cable, plug one end on to the mic, and the other into where the mic's connector would normally plug, on the camera's handle. Make sure the mic is switched to stereo, and voila, you have a second XLR mic. Monitoring in the field: Though many people told me it couldn't, the XL H1 downconverts to NTSC on the fly during recording, so you can plug a little monitor or deck into the video and audio out jacks and have yourself a video tap. Perfect for the director who wants to see what's going on through the camera. I used a little DV camera, and recorded it all so we could have a playback tape if needed. Very useful. (Note that the output NTSC is anamorphic, stretching the 16:9 image over the whole 4:3 frame. A monitor with a 16:9 switch is useful, or something that automatically adapts, such as what I used, a Sony PD-100 DVCAM camera.) Native slow motion: In a 24F project, shoot 30F and use Cinema Tools to slow down the footage to 24fps for a slight slow motion effect. Use 1/60 shutter speed for a standard look, or 1/30 for a slightly dreamier feel. Good Luck.