RF fixed stations 8.7.1 Fixed station transmitters 8.7.2 Fixed station receivers 8.7.3 Antenna coupling equipment 8.8 Lightning protection 8.8.1 Antenna systems 8.8.2 Fixed station cubicle 8.9 Remote control systems 8.9.1 Operational description of the M87 control system 8.9.2 Operational description...
ME Butcher 被引量: 2发表: 1988年 Study on Satellite Antenna Pattern Prediction considering Location of Earth Stations for Footprint Measurement System Confirmation of radiation pattern of satellite antenna is very important for beam formation. National Institute of Information and Communications Technolog....
Another significant advantage of this technique for regional comms is that the low dipole is quiet during receiving. Quiet since it has low gain at low signal arrival angles. So it can reject interference from very distant stations and especially atmospheric static crashes from distant, multi-megawa...
Compact Design:At just 45*90mm, the board's size is ideal for portable use in ham radio base stations and antenna setups. Connectivity:Equipped with SMA connectors, the bridge seamlessly integrates with HiQSDR and compatible SDR Transceivers.Customer...
The data is transmitted as cleartext at 1090 MHz, easily received by simple ground stations. ADS-B is part of the US, Canadian, Australian, and European air traffic control systems. By 2015, ADS-B was manditory in parts of Australian airspace and it was being used for air traffic ...
Works for me! This is a nice item. Easy to dx with a number of radios. I made a cradle for it and mounted it on a camera tripod to use its directional properties. Lots of fun separating stations on same frequency. Nulls out noise. Location (Example: Los Angeles, CA) Santa Fe, NM...
it does receive a number of channels clearly, but it does not bring in the 3 big local stations, abc, cbs and nbc. we are still working on positioning to see if we can improve the reception. the garage is likely a big factor so in another room, i expect this would be a great ...
Next, I moved up to the 17 meter band and stayed in SSB mode. I worked five more stations in nine minutes. Had I only activated this site in SSB on 20 and 17 meters, I could have obtained both a valid SOTA and POTA activation in 17 minutes. ...
My Knoxville stations are like 31 and 32 miles and not showing up on the list. Therefore this app is useless to me. Too bad. Looks really promising. City dwellers have at it! I would try again if developers would open it up to 50 miles. I would love to leave 5 stars next time. ...
EMF Planner is a simulation software designed for the modelling, analysis and visualization of EMF exposure from any radio transmitter - base stations of any standard, TV and radio broadcasting stations, satellite earth stations, PtP, PtMP, Wi-Fi, etc. ...