[TowerTalk] Field Day

Ed Sawyer sawyered at earthlink.net
Tue Jul 4 06:48:33 EDT 2017

I have done quite a bit of "in band" low power 2 radio work.  At 100 W, 2 A4
tribanders, tip to tip, 225ft separation  should have still audible sounds
on the cross band portion CW vs SSB - maybe 2 - 3 S units.  However 10 -
15dB of attenuation on the receivers should kill it if it becomes
bothersome.  If you are not seeing that, consider grounding the systems
together and trying other radios (making sure the SSB radio is not over


I have cross polarized 10, 15, 20M systems that are separated by 200 - 400
feet and they are virtually silent on the noise floor 25khz away - same mode
band - using 100W.  Using amps, you can hear them but the 15dB of pad kills


On 40 - 160, try running a long - directional beverage, separated and to the
side of the antenna if you have the room.  At 100W, and with the improved
S/N ratio, you should do really well.  Potentially both stations could use
the same beverage for receive.


Ed  N1UR

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