50 mhz maps

Receiving loop aerial for 1.8 MHz - Bulding notes of a receiving loop antenna for 160 meters band

G4CQM Homebrew VHF Yagi antennas  ^pop - Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis

7 Elements YAGI for 144 Mhz  ^{updated  pop} - The QM7 antenna is a simple 7 elements Yagi with 3.7 m boom length for the lower 144 MHz SSB/MGM band, in PDF Format

QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements

GM4XRF Loop antenna plan - A motor driven magnetic loop antenna 1.5 meters square for 3.5-10MHZ by GM4XRF

Quad loop antenna for 10 meters - A 27-28 Mhz quad loop antenna by Bernard Mourot F6BCU in french

Spy Radios - This is a CIA RS-1 Spy Radio from the early 1950's

Caribbean Maritime Mobile Net - The Net operates daily on 7.241 MHz from 1100Z to 1200Z, assisting cruisers in contacting each other, being contacted by land based stations, and enabling them to keep in touch with their home bases, family and others

Pacific Seafarers Net - The Pacific Seafarer's Net operates from 02:30Z to 04:00Z, 7 days a week, 365 days a year on 14.313MHz and sometimes on 14.300MHz. Between 02:30Z and 03:24Z we perform general traffic handling, and then at 03:25Z the rollcall portion of the Pacific Seafarer's net begins.

Central Arkansas Radio Emergency Net - The C.A.R.E.N. Club is one of the oldest amateur radio clubs in Arkansas, dating back to the late 1950s. Just as the name implies, the C.A.R.E.N. Club is the state leader in emergency communications, SKYWARN, Amateur Radio Emergency Service (ARES), Radio Amateur Civil Emergency Service (RACES).

Saddleback Repeater Association - Southeast New Hampshire W1SRA / 147.000Mhz / Negative Offset / 100.0 PL Tone Welcome to the Sunday Night Net each Sunday evening at 8:00 PM.

Shelby Amateur Radio Club - Our club has been setting the pace for Amateur Radio in Cleveland County and Shelby for over 50 years.

Parker Country Hamfest 2005 - Parker Country ARC SATURDAY MARCH 26, 2005 $500 Grand Prize

Low Power Radio Modules - Low power radio modules - supplying rf modules, rf transceivers, radiometrix transmitters receivers, low power radio modules, scada, frequency hopping, 900 mhz, wireless data transmission, data telemetry, gps modules & receivers and more

Operating the 28MHz (10m) Band - Excellent page on operating 10 meters band by G3XBM

Split Operations - When and How - When do you need to go to a split operation ? When the people you are giving reports to are not answering, or when you are not getting your report from the station you are working because of other stations who are continuously calling.

500 Khz maritime stations - 305 to 574 Khz stations

Shortwave Propagation - Description of shortwave propagation on shortwaves, refers to those wavelengths which occur with frequencies from about 3 to 30 mHz, or 100 to 10 meters

DK9IP - TS-850 service manual - Kenwood TS-850 manual

Radio Manager for Windows - Click Here for Radio Manager 2004 software - for the Uniden BC296D, BC796D, BC780XLT, BC785D, BC250D, & BC895XLT scanners

ScanControl - ScanControl is the only low cost, easy to use software that supports programming and control & monitoring of the Uniden BC245XLT, BC895XLT, BCT8, BC780XLT, BC250D, BC785D, BC296D, BC796D Digital Scanners and the Radio Shack PRO2052

TS785D - TrunkStar785D is a high-performance, full-featured software package for Uniden® BC785D, BC250D, BC796D and BC296D digital trunking scanners. Data management, operational control and spectrum analysis features are provided.

Trunk Manager for Windows - Supports Uploading & Downloading to and from the BC296D, BC796D, BC780XLT, BC895XLT, BC245XLT, BC250D, BC785D, and Pro-2052 scanners

RF and Microwate Power Amplifiers - RF and Microwave Power Amplifier and Transmitter Technologies, amplifierlinearity, efficiency and available RF power devices.

Cellular Phone Interference - Cellular Phone Interference and 800 MHz Public Safety Radio Systems: An Unforeseen and Dangerous Problem