[Elecraft] Diversity Reception

I tend to agree with Brian. However, in my world, "true diversity" is attained from 2 identical receivers, each having a separate antenna in two different locations. The source signal is a single transmitter. The output of each receiver is fed to a circuit that determined the best signal-

Re: [Elecraft] Diversity Reception

Interesting statements from both Bob-K4TAX and Jim-K9YC. In both cases they were addressing modes that one "hears" such as CW or voice (SSB/AM/FM). I remember the commercial systems that used satellite Rx and "voted" the best SNR signal to be passed to the audio channel. And I also agree wi

Re: [Elecraft] Diversity Reception

On Mon,8/3/2015 8:41 PM, Edward R Cole wrote: However it is not always bad for the two diversity channels to be combined for best signal. The example is digital signals which the human brain cannot process. The example was given of using two antennas of differing polarity for HF. Combining

Re: [Elecraft] Diversity Reception

I use diversity (vertically and horizontally polarized antennas) on CW a lot, and there's more to it than just selecting the louder signal. I can't put my finger on the precise mechanism, but it seems that CW characters are less prone to being damaged by bursts of QRN in diversity mode. 73, V

Re: [Elecraft] Diversity Reception

Bob, This is how I often use the diversity of my K3 (it has the sub RX, and similar filters in Man and Sub RX) - on 20m: one 3-el beam to NW on Main and a 5-el mono to NE on Sub - on 160m: vertical on Main and receive 4-square on Sub - on 40m: 3 el beam on Main, vertical on Sub (It depends a bi

Re: [Elecraft] Diversity Reception

Inserted comments, below: -- Date: Mon, 3 Aug 2015 21:32:33 -0700 From: Jim Brown To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Diversity Reception Message-ID: <55c04061.8000...@audiosystemsgroup.com> Content-Type: text/plain; charset=windows-1252; format=flowed On Mon,8/3/

Re: [Elecraft] Diversity Reception

On Mon,8/3/2015 1:31 PM, Bob McGraw - K4TAX wrote: I tend to agree with Brian. I do as well. It's important to realize that a large percentage of fading is the result of signals arriving from multiple paths, resulting in slightly different travel times from the source. This time difference

[Elecraft] Diversity reception - KRX3

Bruce,   Its all right.  I need to read the K3 manual a couple of times to get the answer as well.    I do have another question.  The offset of the K3 main 2.7Khz filter is -0.24.  Since I bought my KRX3 at a later stage so that I do not have a match pair of 2.7Khz filters.  The offset of the

[Elecraft] Diversity Reception on K3

Anyone doing this on 160/80? What filter pairs are you using? Mike, W4UM Florida Contest Group South Florida DX Association Mid-Florida DX Association ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the l

Re: [Elecraft] Diversity reception - KRX3

Yes, Johnny. the idea is to have the same offset for both filters. That is why many people get the 8-pole filters for main and sub RX. They have (near) zero offset. You two 5-pole filters are a considerable distance apart in offset. (700 Hz) I do not know what is "acceptable" for a difference, as y

Re: [Elecraft] Diversity Reception on K3

Michael M. Raskin wrote: > > Anyone doing this on 160/80? What filter pairs are you using? > > Mike, W4UM > > Yes, 500/2.7k in both Main/Sub; also 1.8k/200 in Main only (for extreme SSB/CW situations). Filling all 10 filter slots is a waste of money IMHO. 73, Bill -- View this messa

Re: [Elecraft] Diversity Reception on K3

On Fri, 12 Dec 2008 10:11:30 -0500, you wrote: >Anyone doing this on 160/80? What filter pairs are you using? > >Mike, W4UM [snip] I'm using it on 80 & 40 all the time. I don't have a 160m antenna, but using the 80m TX antenna and the RX antenna works well for QSX on 160. The QSX antenna is an

Re: [Elecraft] Diversity Reception on K3

Yes, 200Hz, 500Hz and 2.7kHz filters in both receivers; I deal with extreme noise in my suburban location and find using the 200Hz filters helps enormously. Nothing special for receive antennas: a K9AY loop array and the N6RK remote tuned coaxial loop (www.n6rk.com ). I

[Elecraft] Diversity reception in the K3

Going beyond pushing a button, could someone explain how diversity reception is accomplished in the K3? How are the two receivers locked together, phase coherently. Tnx 73 Dale, K9VUJ __ Elecraft mailing list Home: http://mailman.qth.n

[Elecraft] Diversity reception with two linked K3s?

Anybody done this - linked two in a master-slave relationship with frequency control via the serial port or computer program to provide diversity reception? Is there any PC program readily adaptable to this - virtual com port splitters, etc...? I presently use WU2X's PowerSDR and N8LP's LP-

[Elecraft] Diversity reception with two linked K3s

It is possible to link two K3s together through the serial ports and synchronize their tuning using N8LP's LP-Bridge, a free program available from his telepostinc.com website. I now have both my K3s lock-tuned together for rx diversity experiments. After setting the second K3's baud rate to 4

Re: [Elecraft] Diversity reception in the K3

Message- >From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of >DaleJ >Sent: 18 January 2015 09:28 >To: Elecraft@mailman.qth.net >Subject: [Elecraft] Diversity reception in the K3 > >Going beyond pushing a button, could someone explain how diversity >rec

Re: [Elecraft] Diversity reception in the K3

>> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of >> DaleJ >> Sent: 18 January 2015 09:28 >> To: Elecraft@mailman.qth.net >> Subject: [Elecraft] Diversity reception in the K3 >> >> Going beyond pushing a button, could someone explain how

Re: [Elecraft] Diversity reception in the K3

: to horz dipoles at right angles to each other). 73, Ed - KL7UW http://www.kl7uw.com/MAP65.htm -- From: "Ian White" To: "'DaleJ'" , Subject: Re: [Elecraft] Diversity reception in the K3 Message-ID: <003001d0331d$2016aed0$60440c70$@co.uk> Content

Re: [Elecraft] Diversity reception in the K3

Me too. Some people think it is primarily useful on low bands, but I use it on all the bands 40 thru 10 meters (which are the only ones I currently have antennas for). I am using an R8 vertical for transmitting and one RX channel, and a Pixel Loop for the other channel. They are only about 25

Re: [Elecraft] Diversity reception in the K3

et >Subject: Re: [Elecraft] Diversity reception in the K3 > >Ian, > >My impression is that the two received signals are in phase-lock at >the first IF before the roofing filters. I export both IF outputs to >a pair of LP-Pan that are run by one xtal oscillator so their >baseband IQ

Re: [Elecraft] Diversity reception with two linked K3s?

Another way to link two transceivers is via Ham Radio Deluxe, needs a serial port for each transceiver. Run two sessions of HRD, one for each radio. Then click the "synch" button in HRD and assign one as "master" and the other as "slave" (can we still use such non-diverse expressions these days

Re: [Elecraft] Diversity reception with two linked K3s

Jerry Flanders wrote: > > It is possible to link two K3s together through the serial ports and > synchronize their tuning using N8LP's LP-Bridge, a free program > available from his telepostinc.com website. > FYI, Ham Radio Deluxe includes a "synchroniser" that allows you to slave any number

Re: [Elecraft] Diversity reception with two linked K3s

Barry N1EU wrote: > > > > Jerry Flanders wrote: >> >> It is possible to link two K3s together through the serial ports and >> synchronize their tuning using N8LP's LP-Bridge, a free program >> available from his telepostinc.com website. >> > FYI, Ham Radio Deluxe includes a "synchroniser"

Re: [Elecraft] Diversity reception with two linked K3s

From what I have read in years past, I agree locking the two together could probably be useful. I don't know enough about it yet to be sure of this, though - having each radio in a separate earphone may be all one needs unless beam-forming is a goal. In time we will see how the subreceiver is l