|Joined:||Sat, Apr 4th 1998, 00:00||Roles:||N/A||Moderates:||N/A|
|Antenna Modeling for Beginners||Feb 8th 2013, 18:19||3||1,594||on 14/2/13|
|Roller Inductor Tuner||Dec 20th 2011, 19:26||1||1,446||on 20/12/11|
|Using Ladder Line||Jul 27th 2011, 19:43||3||2,479||on 29/7/11|
|Local Eoc (in case the web goes down) Round The Block Net Need Dirt Cheap Wireless Microphones!||WD6EJN||2 weeks, 2 days ago|
|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".
|field day What is it about?||KC9UUU||on 14/4/15|
|Sounds like your group has let the "logistics" of field day get in the way of the true purpose of Field Day.
|Fringe TV reception and 2 meters (filtering?)||KD0FGH||on 3/4/15|
|What are the frequencies of the distant TV stations? Are you using any amplifiers on the TV antenna? are you using a digital converter box?
I run a 50 watt 2 meter transceiver whose antenna is about 15 feet from my 2-bay "bow-tie" TV antenna with no interference to the TV.
|HW101 Xmit set-up||KD0ZGW||on 24/3/15|
|I assume you are keying the transmitter at step 7?
|SWR and metal roof||KO0Y||on 16/3/15|
|In the two-way radio world what you describe is a classic case of water in the feedline. The fact that the SWR is low between the antenna and the feedline but high at the radio end would indicate a coax problem or a bad connector at the antenna end. If the metal roof or mast was a problem then the SWR would have been bad when measured at the antenna. Many times water in the coax is hard to detect unless you cut off a a few feet and examine the center connector.