Unrelated to the K3 performance complaint, what happened to the 50 watt PEP limit for US stations on 60-m? Has that been changed?
Bruce, NM5B ----- Original Message ----- From: "Robert Carroll" <[email protected]> To: <[email protected]> Sent: Tuesday, May 05, 2009 8:13 AM Subject: Re: [Elecraft] Driveway Distortion Demolition Derby > Guy- > > That's a nice response to a really ridiculous complaint. > 73 > Bob W2WG > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Guy Olinger, > K2AV > Sent: Tuesday, May 05, 2009 9:50 AM > To: [email protected] > Subject: [Elecraft] Driveway Distortion Demolition Derby > > Two 100w mobiles in the same driveway and expecting linear response > from the > > RX in one while transmitting on the other? Talking about volts across > the > antenna jack (or any of the connecting cables) here. Who's the EE? > S9 is > 50 uv. 1 volt = 20 log 1/ .000050 = 86 over S9. Maybe ten volts on > the > antenna. That's 106 over S9. > > Hearing some kind of distortion on a 100 over S9 signal is some kind > of > desperately grave trouble in a K3 trouble worth attention? Really > want > Wayne spend precious development time figuring that out? Personally I > vote > for 10 Hz granularity on CW using width and shift. > > Thought the customary form of communication from thirty feet was audio > off > the lips. Need 100 watts on 60m to communicate thirty feet? Audio > distortion could be the driveway version of RF in the shack. 10 volts > externally imposed RF wandering around on your cable of choice is a > formula > for wierdness no matter where the station. > > Someone is really lucky they didn't smoke something. And if the K3 > did get > toasted in this driveway radio demolition derby, that would be the > K3's > fault too, right? Double fault, K3 was distorting the audio while the > front > > end was being roasted. Bad K3. Bad K3. > > Some of the radios bandied about earlier were specifically designed in > World > > War II to survive conditions related to an enemy was trying to kill > the > operator. I'd call that a design standard specifically requested and > paid > for. Since one tank could be next to another, I'd call that > reasonable. > > Such radios ARE still made and paid for. You really want to go pay > for > military grade radios, you can get them, at a price far exceeding the > MSRP > for a K3. Use a kilowatt in your driveway. No problem. Use 10 kw in > your > driveway like the CB powerfests. No problem. > > Personally I'd like to keep the features I pay for confined to > peacetime, > and it does not occur to me as good practice to be transmitting high > power > in the same driveway with another radio on-band with a tuned antenna. > Others may see it differently but I consider the situation in the > first > paragraph as being careless with a friend's property. > > We have contest stations with such situations possible, but we use > filters, > stubs, remote receiving antennas, etc, to make it possible to operate > with > nowhere near a volt on-band. Sometimes use radios borrowed from > friends, > and guess who pays to repair a smoked front-end, and guess which > embarrassed > > soul has to explain same to friend. > > Whether the audio was distorted in a smoke-it episode is really a low > grade > consideration. > > 73, Guy. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
