How are you using this on the L ? NO on receive, then apply voltage to close it on TX ? When open , does the L float or go to ground?
Sent from my iPad > On Jul 25, 2019, at 8:36 AM, FZ Bruce <k...@twc.com> wrote: > > Mark > Although I am using the RF Parts relay on transmit verticals they work > great. They are 12 volt DC coils and are marked so on the relay. I > test checked mine with a little 9 volt battery and pulls great.In the > advertisement blog it says " Rated coil voltage VDC: 26.5 " This is an > advertising error. > > https://www.rfparts.com/vhc3-12v.html [1] > > 73Bruce-k1fz > > -----------------------------------------From: "Mark K3MSB" > To: "CUTTER DAVID" > Cc: "Rob Atkinson", "TopBand List", "Guy Olinger K2AV" > Sent: Thursday July 25 2019 7:59:32AM > Subject: Re: Topband: RFI on TB > > I’d be interested in hear about this also. I’ve always used ground > radials for my INV-L but this year I’d like to try an FCP. > > I’ve read that the INV-L as well as the FCP need to be floated > during > receive, which means two relays at the INV-L. > > 73 Mark K3MSB > > On Thu, Jul 25, 2019, 4:11 AM CUTTER DAVID via Topband < > topband@contesting.com> wrote: > >> Guy >> Slightly OT, but how do you deal with re-radiation from your > inverted L? >> I'm about to erect one of your inverted L on FCP and my rx loops > are about >> 50m away in the other corner of the field. Is that far enough? >> David G3UNA/G6CP >> >>> On 24 July 2019 at 07:13 Guy Olinger K2AV wrote: >>> >>> >>> I gotta agree with Rob. An inverted L aerial wire will hear ALL > the noise >>> that is around. Mine sure does. RX antenna will help enormously > if there >> is >>> a place to put one that does not get the noise second hand off > the L. Not >>> enough room? A bit complicated, but "repeated" noise off the L > can be >> dealt >>> with. >>> >>> The worst noises around here heard on my L were all repaired by > the power >>> company. The nastiest noise was very hard to find, I actually > never >> "found" >>> it by looking for it. Noise turned out to be from a bad splice in > an >>> underground 13 kV cable going from the 13 kV delta overhead out > on US 64 >> to >>> the transformer for my eastern neighbor and next house over. It > would >> come >>> and go with extended cold weather, but never would correlate to > sunlight >> or >>> darkness. I would hear it next to my transformer walking around > with my >>> battery K2 and a rubber ducky. It would never locate to up on a > pole >> (only >>> power noise that didn't). >>> >>> Finally the splice hard-arced, exploding the fuse up on the pole > for the >>> neighbor's 13 kV feed, and taking those two houses off the grid. > The >> noise >>> went away with the cannon shot noise. Blessed quiet on 160 and > 80. I had >>> put up with that for almost four years. >>> >>> In the end, Duke Energy completely reran his AND my buried 13kV > lines, >> and >>> replaced his transformer. 35 years in the ground, 35 year old > cable >> design >>> and materials, and deficient in THEIR opinion. Was really fun to > watch >> them >>> use this super-neat burrowing setup that went right UNDER the > woods and >> the >>> creek (whole other story). Now I can hear the lesser noises on my > L from >>> all over Apex and Cary :>) Need RX antenna for sure. That way I > don't >> have >>> to listen to the Cary, NC noise (NE) at the same time as the > generally >>> closer and louder Apex, NC noise (S, SE). >>> >>> 73, Guy K2AV >>> >>> On Tue, Jul 23, 2019 at 9:37 AM Rob Atkinson >> wrote: >>> >>>>> Over past few months, I have picked up an S5-S7 noise > signature on >> my TB >>>> inv >>>>> L antenna with K2AV FCP system. >>>> >>>> I would not use an inverted L for receiving. Unusable for rx at > my >>>> QTH but FB for transmitting. >>>> >>>> 73 >>>> Rob >>>> K5UJ >>>> _________________ >>>> Searchable Archives: http://www.contesting.com/_topband [2] - > Topband >>>> Reflector >>>> >>> _________________ >>> Searchable Archives: http://www.contesting.com/_topband [3] - > Topband >> Reflector >> _________________ >> Searchable Archives: http://www.contesting.com/_topband [4] - > Topband >> Reflector >> > _________________ > Searchable Archives: http://www.contesting.com/_topband [5] - Topband > Reflector > > > Links: > ------ > [1] https://www.rfparts.com/vhc3-12v.html > [2] http://www.contesting.com/_topband > [3] http://www.contesting.com/_topband > [4] http://www.contesting.com/_topband > [5] http://www.contesting.com/_topband > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector