A radio telescope consists of an antenna system and a receiving device—a radiometer. Antennas exhibit major differences in design, which are caused by the very broad range of wavelengths used in radio astronomy (from 0.1 mm to 1,000 m). In order that the antenna may be pointed at the re...
This invention relates to improvements in radi antennas and it consists of the matters herein after described and more particularly pointe out in the appended claims. 5. The invention is especially concerned with an tennas adapted for use in connection with auto motive vehicles having a compartment...
G0KSC, LFA Yagi, OWL Yal, OWA Yagi, Ham Radio, Ham Radio antennas, Commercial Antennas, Yagi designers, Yagi manufacturers
via either cable or individual antennas. TvDanmark is the fourth television company in the country, constructed around a network of eight local channels. Kanal 2 in Copenhagen is the hub station in the organization, which is owned by SBS. TvDanmark split into two channels in 2000. TVDanmark ...
展开 关键词: holography millimetre wave antennas radiotelescopes reflector antennas AEC ALMA antennas Alcatel-EIE-Consortium Fresnel field terms VertexRSI full phase system near-field radio holography radiation integrals radio telescope reflector antennas sub-millime DOI...
It has been a while since I last reported on passive AM loop antennas…the smallish variety that are such a cost-effective way to perk up your AM radio reception on the cheap. If you haven’t tried one out you’re in for a treat! The good folks at Tecsun Australia just sent me th...
NECRAT - North East Commercial Radio Antennas and Towers NEAR-Fest - The New England Amateur Radio Festival Fybush.com - NorthEast Radio Watch Fybush.com Tower site of the week: A Rainy Day in Bangor, Maine (2002) Tophour.com audio: Bangor Legal IDs ...
Last Edit: April 07, 2016, 0056 UTC by jFarley» 0011- signing on now S7-8 S9 peaks and great sounding audio as always 0013- talking about high winds wreaking havoc on the RFW antenna 0014- song "Albatross" OM vocals 0019- RFW ID into "Bored" Girls In Hawaii per Shazam ...
Rentschen is the summit I choose for testing new antennas on as it is a flat plateau and so provides plenty of space. I decided to play it safe for this afternoon’s activation. I packed not only the electrically switchable trapped tri-bander beam but also the manually switched 5-bander ...
After you’ve chosen which radio to protect,take the extra precaution of removing any attached telescopic antenna.Most antennas are held in place with a simple tiny stainless steel screw/bolt. Unscrew it, pull the antenna off, place both pieces in a small bag and keep it with the radio. ...