Local Eoc (in case the web goes down) Round The Block Net Need Dirt Cheap Wireless Microphones!
Displaying 1-5 of 5
| Jun 16th 2015, 21:34 | |
wd6ejnTotal Topics: 0 Total Posts: 0 |
I have heard of folks having gmrs (do you still need a licence?) repeaters or frs simplex for their neighborhoods and non hams being able to check in with other neighbors. I have been looking for wireless microphone transmitters such as the news uses for remote camera use. I have tried to have neighbors get interested in using frs/gmrs for years with no success, mostly the cost of building a repeater licensing of gmrs etc and folks these days are allergic to analog devices and anything with an antenna longer then 3 inches! I think if I could find a box of wireless microphones (at least one watt) in kit form there is a simple way as a ham to relay messages or maybe third party contacts. What would be cool is to have a build your own gathering where neighbors could buy (in large quantities to save money) projects then check in weekly and lots of chat on the weekdays. Specially good for senior shut ins with nothing to do. I found a neat way of receiving signals mostly on vhf using my aluminum walking stick! and it works great hooked up to my portable stereo, I have yet to transmit a signal on two meters with my walking stick (5/8 wave) and this would be great as a wireless transmitter antenna, wooden ones could have a loading coil or matching section. You can't imagine how long I've been trying to find these! (just transmitters without receivers). I have had incredible antenna restrictions wherever I've lived so the only way is to have more power in the microphones if I have to settle for a repeater or relaying signals until I can get permission to get something on the roof (impossible task). |
| Jun 17th 2015, 15:12 | |
WA0CBWTotal Topics: 0 Total Posts: 0 |
Yes you need a license for GMRS. For the most part there are very few frequencies that don't need licenses (MURS/FRS/CB). You may be a bit confused about "wireless microphones". Microphones don't transmit but the transmitter they are connected do. So a one watt microphone is really a one watt transmitter and depending on the frequency it uses would require a license. Also, wireless microphones need an antenna for the frequency they are using. The higher the frequency the shorter the antenna. The FCC regulates frequencies and what can be used on each frequency as well as the power levels. Have you looked into "stealth" ham antennas? There are many designs available for those whose locations are "antenna challenged". Bill |
| Jun 28th 2015, 22:21 | |
wd6ejnTotal Topics: 0 Total Posts: 0 |
Wouldn't one assume if there is no wire attached it is a wireless microphone!, a lot of them are attached to belt clips with lavelier mics much like hand held without receivers, but cost over $300.00, most of the new ones that you see have the cube at the bottom which I assume house the battery, but I think these would only put out 50 millitatts. It seems like an impossible task but the group I would start would just have to obtain ham licences no one would go for this!, frs might work with a pl tone, but I still have to have a roof mounted beam (channel 15 yagi with 30db preamp).and at least a stacked pair of moon bounce beams. I have tried many "stealth antennas" for ham radio over the years, but there is so much surveillance by neighbors wherever I had to live that even a 30 gauge wire does not go unnoticed. The reason I have decided on wireless microphones is no one on the block is going to pay the price for a gmrs radio and license unless there was some sort of huge donation. I have seen some remote shots on movies and tv news that are really far away! they must use a huge dish or yagi to pick up the signals. |
| Jun 29th 2015, 13:12 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
https://www.youtube.com/watch?v=0XOrRdbRlis How a TV News Live Truck Works! #StormKING They use a mast nearly 50 ft tall to get the distance. Zack W1VT ARRL Senior Lab Engineer |
| Jul 6th 2015, 20:28 | |
wd6ejnTotal Topics: 0 Total Posts: 0 |
I just want to know where they get their wireless microphones without receivers, if I could find a Ramsey Electronics that sold a fm handie talkie kit, we could just build the transmitters and every one would have to get ham licenses no big deal. I can't remember the newscasters name right now, but when she extended the mast it went right into a power pole, her face was pretty messed up and she barely survived. |
Displaying 1-5 of 5
