When I bought the k3 in 09 I went all out
and bought most of the accessories to go with it. One of these was the sub Rx and a full matching set of crystals for it. As upgrades happened I did them all and wasn't using the Sub Rx in diversity so much but, the advantage of the Sub Rx was always there with flexibility I take for granted. So I upgrade to the K3s and migrated the sub Rx to it as well. I just don't think of diversity much but that was one of the reasons I bought the Sub Rx in the first place. With the 3 dB loss going to Diversity, I just listened more with the main receiver and let it go from there. So today I'm working a ve7 on 10M and the band is going out. I can hear him but it's at that marginal iffy point, I was missing characters in his CW. I have a HI-Z triangular & a circle 8 pair of Rx antennas. The Circle 8 rocks on the low bands, has a filter to cut out above 40M but the triangular has no such filter and I often hear better on it than on the the roof mounted tribander. So for fun, I used diversity and the triangular on the sub, 160 sloper for the Tx antenna & Voilà, I heard him so much better, finished the Q and that reminded me of the real advantage of diversity and why it is an asset. So now it's tonight, I see 3C0L is still on the air at around 3AM their time, on 20M. They're heading home today and the low band antenna is packed up already. What troupers to still be in the game at this point. But I digress... So here they are, I don't have a good antenna for 20M, have to use the 160M antenna or tribander. RFI from the neighbors makes the tribander useless so I hear them on the sloper and can hear them on the Hi-Z Triangular a bit better but much QSB so remembering the success with the VE7 earlier I go Diversity & all of a sudden, solid Q5 copy, no QSB and I snagged them on 20 CW. Diversity really made the difference. I bought the K3s because it had such excellent specs, nothing else to me came close, save for 1-2 radios that in 09 were hot and cost more than a new car. And they weren't any better in practicality than the K3 was. I bought the Sub Rx for the diversity and now today, while the K3s is itself stellar in all the right ways, it is an a better product with the Sub Rx. I'm really honored to have such an incredibly capable radio. Just sayin' 73, Gary KA1J ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
You're welcome. It is such an oasis to
find a company that not only makes top quality equipment but has a fantastic after sale support of these products. I Loved my K3, sold it to a friend who wanted one for mobile contesting, with me buying a K3s to replace it. Feeling remorse at selling the K3 & having to use a Corsair II as my only backup rig, I bought another (very old) K3 again for a backup in case I have to sent the K3s back. I don't hear much about the Diversity option mentioned here any more and thought I'd bring up how much of an advantage it can be, even with all the stand-alone stats of a K3s. Diversity still makes the K3s an even better, more capable radio. If you want the best of the best, Diversity gives you that option. 73, Gary KA1J > Thanks :) > > Wayne > N6KR > > > > On Oct 24, 2017, at 8:37 PM, Gary Smith <[hidden email]> wrote: > > > > When I bought the k3 in 09 I went all out > > and bought most of the accessories to go > > with it. One of these was the sub Rx and a > > full matching set of crystals for it. As > > upgrades happened I did them all and > > wasn't using the Sub Rx in diversity so > > much but, the advantage of the Sub Rx was > > always there with flexibility I take for > > granted. > > > > So I upgrade to the K3s and migrated the > > sub Rx to it as well. I just don't think > > of diversity much but that was one of the > > reasons I bought the Sub Rx in the first > > place. With the 3 dB loss going to > > Diversity, I just listened more with the > > main receiver and let it go from there. > > > > So today I'm working a ve7 on 10M and the > > band is going out. I can hear him but it's > > at that marginal iffy point, I was missing > > characters in his CW. I have a HI-Z > > triangular & a circle 8 pair of Rx > > antennas. The Circle 8 rocks on the low > > bands, has a filter to cut out above 40M > > but the triangular has no such filter and > > I often hear better on it than on the the > > roof mounted tribander. So for fun, I used > > diversity and the triangular on the sub, > > 160 sloper for the Tx antenna & Voilà, I > > heard him so much better, finished the Q > > and that reminded me of the real advantage > > of diversity and why it is an asset. > > > > So now it's tonight, I see 3C0L is still > > on the air at around 3AM their time, on > > 20M. They're heading home today and the > > low band antenna is packed up already. > > What troupers to still be in the game at > > this point. But I digress... So here they > > are, I don't have a good antenna for 20M, > > have to use the 160M antenna or tribander. > > RFI from the neighbors makes the tribander > > useless so I hear them on the sloper and > > can hear them on the Hi-Z Triangular a bit > > better but much QSB so remembering the > > success with the VE7 earlier I go > > Diversity & all of a sudden, solid Q5 > > copy, no QSB and I snagged them on 20 CW. > > > > Diversity really made the difference. I > > bought the K3s because it had such > > excellent specs, nothing else to me came > > close, save for 1-2 radios that in 09 were > > hot and cost more than a new car. And they > > weren't any better in practicality than > > the K3 was. I bought the Sub Rx for the > > diversity and now today, while the K3s is > > itself stellar in all the right ways, it > > is an a better product with the Sub Rx. > > I'm really honored to have such an > > incredibly capable radio. > > > > Just sayin' > > > > 73, > > > > Gary > > KA1J > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[hidden email] > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to [hidden email] > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
In reply to this post by Gary Smith-2
Folks,
I thought I should also share these additional thoughts about diversity & Elecraft, the company as well, with the group: It is such an oasis to find a company that not only makes top quality equipment but has a fantastic after sale support of these products. I Loved my K3, wanted a K3s and sold the K3 to a friend who wanted one for mobile contesting, with me buying a K3s to replace it. Feeling remorse at selling the K3 & having to use a Corsair II as my only backup rig, I bought another (very old) but fully updated K3 for a backup in case I have to send my new K3s back for repair. I don't hear much about the Diversity option mentioned here often and thought I'd bring up how much of an advantage it can be, even with all the stand-alone stats of a K3s. Diversity still makes the K3 and now, the K3s an even better, more capable radio. If you want the best of the best, Diversity gives you that option. 73, Gary KA1J > When I bought the k3 in 09 I went all out > and bought most of the accessories to go > with it. One of these was the sub Rx and a > full matching set of crystals for it. As > upgrades happened I did them all and > wasn't using the Sub Rx in diversity so > much but, the advantage of the Sub Rx was > always there with flexibility I take for > granted. > > So I upgrade to the K3s and migrated the > sub Rx to it as well. I just don't think > of diversity much but that was one of the > reasons I bought the Sub Rx in the first > place. With the 3 dB loss going to > Diversity, I just listened more with the > main receiver and let it go from there. > > So today I'm working a ve7 on 10M and the > band is going out. I can hear him but it's > at that marginal iffy point, I was missing > characters in his CW. I have a HI-Z > triangular & a circle 8 pair of Rx > antennas. The Circle 8 rocks on the low > bands, has a filter to cut out above 40M > but the triangular has no such filter and > I often hear better on it than on the the > roof mounted tribander. So for fun, I used > diversity and the triangular on the sub, > 160 sloper for the Tx antenna & Voilà, I > heard him so much better, finished the Q > and that reminded me of the real advantage > of diversity and why it is an asset. > > So now it's tonight, I see 3C0L is still > on the air at around 3AM their time, on > 20M. They're heading home today and the > low band antenna is packed up already. > What troupers to still be in the game at > this point. But I digress... So here they > are, I don't have a good antenna for 20M, > have to use the 160M antenna or tribander. > RFI from the neighbors makes the tribander > useless so I hear them on the sloper and > can hear them on the Hi-Z Triangular a bit > better but much QSB so remembering the > success with the VE7 earlier I go > Diversity & all of a sudden, solid Q5 > copy, no QSB and I snagged them on 20 CW. > > Diversity really made the difference. I > bought the K3s because it had such > excellent specs, nothing else to me came > close, save for 1-2 radios that in 09 were > hot and cost more than a new car. And they > weren't any better in practicality than > the K3 was. I bought the Sub Rx for the > diversity and now today, while the K3s is > itself stellar in all the right ways, it > is an a better product with the Sub Rx. > I'm really honored to have such an > incredibly capable radio. > > Just sayin' > > 73, > > Gary > KA1J > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
I don't know all the technical details of diversity reception but have
wondered if a diversity mode option board could be produced at a cheaper price than a full-blown sub receiver. Not sure how much I'd be willing to pay but sub-receiver pricing is definitely a no-go. 73, Drew AF2Z On 10/26/17 18:18, Gary Smith wrote: > Folks, > > I thought I should also share these > additional thoughts about diversity & > Elecraft, the company as well, with the > group: > > It is such an oasis to find a company that > not only makes top quality equipment but > has a fantastic after sale support of > these products. > > I Loved my K3, wanted a K3s and sold the > K3 to a friend who wanted one for mobile > contesting, with me buying a K3s to > replace it. Feeling remorse at selling the > K3 & having to use a Corsair II as my only > backup rig, I bought another (very old) > but fully updated K3 for a backup in case > I have to send my new K3s back for repair. > > I don't hear much about the Diversity > option mentioned here often and thought > I'd bring up how much of an advantage it > can be, even with all the stand-alone > stats of a K3s. Diversity still makes the > K3 and now, the K3s an even better, more > capable radio. If you want the best of the > best, Diversity gives you that option. > > 73, > > Gary > KA1J > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
In reply to this post by Gary Smith-2
I use diversity on 20 meters with a vertical SteppIr and a loop. Both are separated about 150'. What a difference. Amazing. Makes a huge difference with stations fading in and out and near the noise level. I can work them with the Loop, but the vertical is so helpful when receiving.
73, Bill K9YEQ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Gary Smith Sent: Tuesday, October 24, 2017 10:38 PM To: [hidden email] Subject: [Elecraft] In praise of the sub Rx & Diversity When I bought the k3 in 09 I went all out and bought most of the accessories to go with it. One of these was the sub Rx and a full matching set of crystals for it. As upgrades happened I did them all and wasn't using the Sub Rx in diversity so much but, the advantage of the Sub Rx was always there with flexibility I take for granted. So I upgrade to the K3s and migrated the sub Rx to it as well. I just don't think of diversity much but that was one of the reasons I bought the Sub Rx in the first place. With the 3 dB loss going to Diversity, I just listened more with the main receiver and let it go from there. So today I'm working a ve7 on 10M and the band is going out. I can hear him but it's at that marginal iffy point, I was missing characters in his CW. I have a HI-Z triangular & a circle 8 pair of Rx antennas. The Circle 8 rocks on the low bands, has a filter to cut out above 40M but the triangular has no such filter and I often hear better on it than on the the roof mounted tribander. So for fun, I used diversity and the triangular on the sub, 160 sloper for the Tx antenna & Voilà, I heard him so much better, finished the Q and that reminded me of the real advantage of diversity and why it is an asset. So now it's tonight, I see 3C0L is still on the air at around 3AM their time, on 20M. They're heading home today and the low band antenna is packed up already. What troupers to still be in the game at this point. But I digress... So here they are, I don't have a good antenna for 20M, have to use the 160M antenna or tribander. RFI from the neighbors makes the tribander useless so I hear them on the sloper and can hear them on the Hi-Z Triangular a bit better but much QSB so remembering the success with the VE7 earlier I go Diversity & all of a sudden, solid Q5 copy, no QSB and I snagged them on 20 CW. Diversity really made the difference. I bought the K3s because it had such excellent specs, nothing else to me came close, save for 1-2 radios that in 09 were hot and cost more than a new car. And they weren't any better in practicality than the K3 was. I bought the Sub Rx for the diversity and now today, while the K3s is itself stellar in all the right ways, it is an a better product with the Sub Rx. I'm really honored to have such an incredibly capable radio. Just sayin' 73, Gary KA1J ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
In reply to this post by Drew AF2Z
Drew,
True diversity reception requires 2 receivers which are locked together in not only frequency, but also in phase. The KRX3 receiver is of the same design and implementation as the main receiver, making diversity reception possible. The antennas must be different, one horizontal and the other vertical as one example although other combinations are possible - not only differing polarization but oriented in different directions. The result is that an "option board" for one receiver will not create the conditions necessary for diversity receive - two receivers can produce that result. 73, Don W3FPR On 10/26/2017 8:19 PM, Drew AF2Z wrote: > I don't know all the technical details of diversity reception but have > wondered if a diversity mode option board could be produced at a cheaper > price than a full-blown sub receiver. Not sure how much I'd be willing > to pay but sub-receiver pricing is definitely a no-go. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
In reply to this post by Bill K9YEQ
I have been trying along time to get buyers to go for it and get the sub rx
for its many pluses. One that is kind of not obvious is the diversity receive. I knew about it from my years of working on FAA radars, and military search RADARs maintained by the FAA. All search radars from way back have diversity RX, because it will find those small target weak reflections. And some specialized diversity receive is being developed for those dog gone drones. I have not measured the sensitivity of the K3s, but there are weak stations that are not heard when not in diversity. A friend in the city of Spokane can adjust the phase between his antennas and null out some strong RFI completely! Leroy AB7CE -----Original Message----- From: Bill Johnson Sent: Thursday, October 26, 2017 7:56 PM To: [hidden email] ; [hidden email] Subject: Re: [Elecraft] In praise of the sub Rx & Diversity I use diversity on 20 meters with a vertical SteppIr and a loop. Both are separated about 150'. What a difference. Amazing. Makes a huge difference with stations fading in and out and near the noise level. I can work them with the Loop, but the vertical is so helpful when receiving. 73, Bill K9YEQ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Gary Smith Sent: Tuesday, October 24, 2017 10:38 PM To: [hidden email] Subject: [Elecraft] In praise of the sub Rx & Diversity When I bought the k3 in 09 I went all out and bought most of the accessories to go with it. One of these was the sub Rx and a full matching set of crystals for it. As upgrades happened I did them all and wasn't using the Sub Rx in diversity so much but, the advantage of the Sub Rx was always there with flexibility I take for granted. So I upgrade to the K3s and migrated the sub Rx to it as well. I just don't think of diversity much but that was one of the reasons I bought the Sub Rx in the first place. With the 3 dB loss going to Diversity, I just listened more with the main receiver and let it go from there. So today I'm working a ve7 on 10M and the band is going out. I can hear him but it's at that marginal iffy point, I was missing characters in his CW. I have a HI-Z triangular & a circle 8 pair of Rx antennas. The Circle 8 rocks on the low bands, has a filter to cut out above 40M but the triangular has no such filter and I often hear better on it than on the the roof mounted tribander. So for fun, I used diversity and the triangular on the sub, 160 sloper for the Tx antenna & Voilà, I heard him so much better, finished the Q and that reminded me of the real advantage of diversity and why it is an asset. So now it's tonight, I see 3C0L is still on the air at around 3AM their time, on 20M. They're heading home today and the low band antenna is packed up already. What troupers to still be in the game at this point. But I digress... So here they are, I don't have a good antenna for 20M, have to use the 160M antenna or tribander. RFI from the neighbors makes the tribander useless so I hear them on the sloper and can hear them on the Hi-Z Triangular a bit better but much QSB so remembering the success with the VE7 earlier I go Diversity & all of a sudden, solid Q5 copy, no QSB and I snagged them on 20 CW. Diversity really made the difference. I bought the K3s because it had such excellent specs, nothing else to me came close, save for 1-2 radios that in 09 were hot and cost more than a new car. And they weren't any better in practicality than the K3 was. I bought the Sub Rx for the diversity and now today, while the K3s is itself stellar in all the right ways, it is an a better product with the Sub Rx. I'm really honored to have such an incredibly capable radio. Just sayin' 73, Gary KA1J ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Almost the only time I don't use diversity is when I need the
subreceiver for split pileup operations (and often it's enough just to watch the P3, so even then I use it). It can make a huge difference. My antennas are only about 15m apart, but one is a dipole and the other a (vertically polarized) Pixel Loop. The loop has a relay that disconnects it when I transmit so there's no danger to the subreceiver. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ On 29 Oct 2017 02:11, lmarion wrote: > I have been trying along time to get buyers to go for it and get the sub > rx for its many pluses. One that is kind of not obvious is the > diversity receive. I knew about it from my years of working on FAA > radars, and military search RADARs maintained by the FAA. All search > radars from way back have diversity RX, because it will find those small > target weak reflections. And some specialized diversity receive is being > developed for those dog gone drones. I have not measured the > sensitivity of the K3s, but there are weak stations that are not heard > when not in diversity. A friend in the city of Spokane can adjust the > phase between his antennas and null out some strong RFI completely! > > Leroy AB7CE > > -----Original Message----- From: Bill Johnson > Sent: Thursday, October 26, 2017 7:56 PM > To: [hidden email] ; [hidden email] > Subject: Re: [Elecraft] In praise of the sub Rx & Diversity > > I use diversity on 20 meters with a vertical SteppIr and a loop. Both > are separated about 150'. What a difference. Amazing. Makes a huge > difference with stations fading in and out and near the noise level. I > can work them with the Loop, but the vertical is so helpful when receiving. > > 73, > Bill > K9YEQ > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Gary Smith > Sent: Tuesday, October 24, 2017 10:38 PM > To: [hidden email] > Subject: [Elecraft] In praise of the sub Rx & Diversity > > When I bought the k3 in 09 I went all out and bought most of the > accessories to go with it. One of these was the sub Rx and a full > matching set of crystals for it. As upgrades happened I did them all and > wasn't using the Sub Rx in diversity so much but, the advantage of the > Sub Rx was always there with flexibility I take for granted. > > So I upgrade to the K3s and migrated the sub Rx to it as well. I just > don't think of diversity much but that was one of the reasons I bought > the Sub Rx in the first place. With the 3 dB loss going to Diversity, I > just listened more with the main receiver and let it go from there. > > So today I'm working a ve7 on 10M and the band is going out. I can hear > him but it's at that marginal iffy point, I was missing characters in > his CW. I have a HI-Z triangular & a circle 8 pair of Rx antennas. The > Circle 8 rocks on the low bands, has a filter to cut out above 40M but > the triangular has no such filter and I often hear better on it than on > the the roof mounted tribander. So for fun, I used diversity and the > triangular on the sub, > 160 sloper for the Tx antenna & Voilà, I heard him so much better, > finished the Q and that reminded me of the real advantage of diversity > and why it is an asset. > > So now it's tonight, I see 3C0L is still on the air at around 3AM their > time, on 20M. They're heading home today and the low band antenna is > packed up already. > What troupers to still be in the game at this point. But I digress... So > here they are, I don't have a good antenna for 20M, have to use the 160M > antenna or tribander. > RFI from the neighbors makes the tribander useless so I hear them on the > sloper and can hear them on the Hi-Z Triangular a bit better but much > QSB so remembering the success with the VE7 earlier I go Diversity & all > of a sudden, solid Q5 copy, no QSB and I snagged them on 20 CW. > > Diversity really made the difference. I bought the K3s because it had > such excellent specs, nothing else to me came close, save for 1-2 radios > that in 09 were hot and cost more than a new car. And they weren't any > better in practicality than the K3 was. I bought the Sub Rx for the > diversity and now today, while the K3s is itself stellar in all the > right ways, it is an a better product with the Sub Rx. > I'm really honored to have such an > incredibly capable radio. > > Just sayin' > > 73, > > Gary > KA1J Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Without diversity I couldn't do my 144 and 432 MHz moonbouncing the way
I do. It's perfect for Xpol's since I can decode both H and Vpol and the very same time. Thats a huge advantage against other rigs. Love it, a great feature. 73 Udo, DK5YA http.//www.dx7eme.de/ Am 29.10.2017 um 14:24 schrieb Victor Rosenthal 4X6GP: > Almost the only time I don't use diversity is when I need the > subreceiver for split pileup operations (and often it's enough just to > watch the P3, so even then I use it). It can make a huge difference. > My antennas are only about 15m apart, but one is a dipole and the other > a (vertically polarized) Pixel Loop. > The loop has a relay that disconnects it when I transmit so there's no > danger to the subreceiver. > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > http://www.qsl.net/k2vco/ > On 29 Oct 2017 02:11, lmarion wrote: >> I have been trying along time to get buyers to go for it and get the >> sub rx for its many pluses. One that is kind of not obvious is the >> diversity receive. I knew about it from my years of working on FAA >> radars, and military search RADARs maintained by the FAA. All search >> radars from way back have diversity RX, because it will find those >> small target weak reflections. And some specialized diversity receive >> is being developed for those dog gone drones. I have not measured the >> sensitivity of the K3s, but there are weak stations that are not heard >> when not in diversity. A friend in the city of Spokane can adjust the >> phase between his antennas and null out some strong RFI completely! >> >> Leroy AB7CE >> >> -----Original Message----- From: Bill Johnson >> Sent: Thursday, October 26, 2017 7:56 PM >> To: [hidden email] ; [hidden email] >> Subject: Re: [Elecraft] In praise of the sub Rx & Diversity >> >> I use diversity on 20 meters with a vertical SteppIr and a loop. Both >> are separated about 150'. What a difference. Amazing. Makes a huge >> difference with stations fading in and out and near the noise level. >> I can work them with the Loop, but the vertical is so helpful when >> receiving. >> >> 73, >> Bill >> K9YEQ >> >> -----Original Message----- >> From: [hidden email] >> [mailto:[hidden email]] On Behalf Of Gary Smith >> Sent: Tuesday, October 24, 2017 10:38 PM >> To: [hidden email] >> Subject: [Elecraft] In praise of the sub Rx & Diversity >> >> When I bought the k3 in 09 I went all out and bought most of the >> accessories to go with it. One of these was the sub Rx and a full >> matching set of crystals for it. As upgrades happened I did them all >> and wasn't using the Sub Rx in diversity so much but, the advantage of >> the Sub Rx was always there with flexibility I take for granted. >> >> So I upgrade to the K3s and migrated the sub Rx to it as well. I just >> don't think of diversity much but that was one of the reasons I bought >> the Sub Rx in the first place. With the 3 dB loss going to Diversity, >> I just listened more with the main receiver and let it go from there. >> >> So today I'm working a ve7 on 10M and the band is going out. I can >> hear him but it's at that marginal iffy point, I was missing >> characters in his CW. I have a HI-Z triangular & a circle 8 pair of Rx >> antennas. The Circle 8 rocks on the low bands, has a filter to cut out >> above 40M but the triangular has no such filter and I often hear >> better on it than on the the roof mounted tribander. So for fun, I >> used diversity and the triangular on the sub, >> 160 sloper for the Tx antenna & Voilà, I heard him so much better, >> finished the Q and that reminded me of the real advantage of diversity >> and why it is an asset. >> >> So now it's tonight, I see 3C0L is still on the air at around 3AM >> their time, on 20M. They're heading home today and the low band >> antenna is packed up already. >> What troupers to still be in the game at this point. But I digress... >> So here they are, I don't have a good antenna for 20M, have to use the >> 160M antenna or tribander. >> RFI from the neighbors makes the tribander useless so I hear them on >> the sloper and can hear them on the Hi-Z Triangular a bit better but >> much QSB so remembering the success with the VE7 earlier I go >> Diversity & all of a sudden, solid Q5 copy, no QSB and I snagged them >> on 20 CW. >> >> Diversity really made the difference. I bought the K3s because it had >> such excellent specs, nothing else to me came close, save for 1-2 >> radios that in 09 were hot and cost more than a new car. And they >> weren't any better in practicality than the K3 was. I bought the Sub >> Rx for the diversity and now today, while the K3s is itself stellar in >> all the right ways, it is an a better product with the Sub Rx. >> I'm really honored to have such an >> incredibly capable radio. >> >> Just sayin' >> >> 73, >> >> Gary >> KA1J > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] -- ****************************************** Webs by DK5YA: * http://www.mmmonvhf.de/ [editor]* http://www.vhfdx.de/ [owner] * http://www.palekastro.de/ [owner] * http://www.solweb.de/ [owner] * http://www.spessartwetter.de/ [owner] * ****************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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