[amsat-bb] Re: TransAtlantic Balloon on 28 MHz ?

2012-02-16 Thread Joe
Bob says "Just wondering if anyone has a vertical beam. A horizontal beam will be useless for direction finding. All it will do is point to whatever is reflecting the energy into the strongest horizontal component..." That is only true when receiving the signal via direct line of sight propag

[amsat-bb] Re: TransAtlantic Balloon on 28 MHz ?

2012-02-16 Thread Roger
CB uses vertical beams...the difficulty is that they have to have a non metallic mounting pole extending into the beam or be end mounted (think torque) With enough planning I'm sure enough hams could chase something up and use empty Stationmaster radomes, fiberglass poles or even schedule 80

[amsat-bb] Re: TransAtlantic Balloon on 28 MHz ?

2012-02-16 Thread John Magliacane
--- On Thu, 2/16/12, Roger wrote: > CB uses vertical beams...the difficulty is that they have to have > a non metallic mounting pole extending into the beam or be end > mounted (think torque) The mounting pole may contribute some capacitive or inductive loading effects on the elements adjacent

[amsat-bb] Re: TransAtlantic Balloon on 28 MHz ?

2012-02-16 Thread Bob Bruninga
>> Just wondering if anyone has a vertical beam. >> A horizontal beam [for this vertical balloon signal] will be >> useless for direction finding > That is only true when receiving the signal > via direct line of sight propagation. The transmitter is only 10 milliwatts, so we only expect li