Re: Topband: safely sharing an RX antenna
On 12/18/2015 1:15 PM, Petr Ourednik wrote: Hi it sounds like SO2R on the same band... Its interresting for me too. I am using one solution in CQ160m in order to use 2nd radio for S but its disconnected from antenna and grounded as same as 1st radio in RUN during TX period. So I am curious what other TBers are using... 73 - Petr, OK1RP I have run SO2R single band in a number of 160 meter contests. If the signal level at the receiver is anywhere near the damage level, you won't be able to hear anything even if the receiver is undamaged. I used a loop receiving antenna 1000 feet from my transmit antenna, and I carefully nulled out my own transmitter by rotating the loop. Worked pretty well even with just a TS570 for the 2nd radio. Rick N6RK _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: safely sharing an RX antenna
Hi it sounds like SO2R on the same band... Its interresting for me too. I am using one solution in CQ160m in order to use 2nd radio for S but its disconnected from antenna and grounded as same as 1st radio in RUN during TX period. So I am curious what other TBers are using... 73 - Petr, OK1RP On Thu, Dec 17, 2015, at 07:06 AM, Bob Kupps via Topband wrote: > Hi I was thinking about using a 3dB splitter and tuning the band with our > second K3 using our HiZ monoband 8 circle while we were calling CQ in the > Stew. The center of the array is located 105 meters from the xmit > vertical, uses 20' elements, the included preamp and 100m of RG6 > transmission line. > Could dangerously high signal levels appear at the unmuted second radio > antenna terminal? What about if the second radio is inadvertently tuned > to the xmit frequency? It would seem impossible if the external antenna > preamps are not damaged...but I'm still a 1R op so I better ask first! > TU 73 Bob HS0ZIA > _ > Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: safely sharing an RX antenna
Hi I was thinking about using a 3dB splitter and tuning the band with our second K3 using our HiZ monoband 8 circle while we were calling CQ in the Stew. The center of the array is located 105 meters from the xmit vertical, uses 20' elements, the included preamp and 100m of RG6 transmission line. Could dangerously high signal levels appear at the unmuted second radio antenna terminal? What about if the second radio is inadvertently tuned to the xmit frequency? It would seem impossible if the external antenna preamps are not damaged...but I'm still a 1R op so I better ask first! TU 73 Bob HS0ZIA _ Topband Reflector Archives - http://www.contesting.com/_topband
