Cross Country Wireless pre-amp have exceptionally high IP3 using FEMPT
transistors. He is also developing units for contesters. Contact owner Chris
Moulding.
David G3UNA /G6CP
-----Original Message-----
From: Topband [mailto:topband-bounces@contesting.com] On Behalf Of Rune Øye
Sent: 13 November 2018 09:58
To: topband@contesting.com
Subject: Topband: Preamp on RX antenna`s in contest environment.
All,
I am currently building two RX loops for 160 meter band and to be used at LA8W
contest station. Output signals from these loops is not that great and I need
to add a preamp. From RX antennas to shack is approx. 1500 to 2000 feet. I
would like to have the preamps at the loops and use DC inject on coax cable but
wonder if these 15dB preamps will be saturated. I guess the will have an
“easier life” in the shack and behind some band pas filters.
Distance from TX antennas is not more than 700 feet on 160. I am building the
VE3DO loops and will space them 5/8 wave broadside and then feed each loop to a
DX-Engennering phase box. Any suggestions from the experts J
73 Rune LA7THA
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