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Sale are 2 Misek/Lankford Phaser 2. SOLD
?Both Phasers have SOLD I just finished building 2 more Misek/ Lankford Phaser 2s which are for sale. These are the last that I will build for sale. If interest please contact me off List at
By Everett N4CY · #21363 ·
Sale are 2 Misek/Lankford Phaser 2
I just finished building 2 more Misek/ Lankford Phaser 2s which are for sale. These are the last that I will build for sale. If interest please contact me off List at?everettsharp@....
By Everett N4CY · #21362 ·
Re: PTT selection in QMX+
Yes, with red face shamefully slinking off into the QRM... [email protected]> wrote: -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com
By Ken - K4XL · #21361 ·
Re: PTT selection in QMX+
Hi Ken, i guess you posted in the wrong group? regards, Fred
By Fred M · #21360 ·
PTT selection in QMX+
Is it possible to choose the active grounded method for PTT via the Menu or is it necessary to utilize a terminal program. ?If so,I could use some help finding the correct menu item! ?Thanks.
By Ken - K4XL · #21359 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Sean, Some of the issues I had with dipole mode was due to Common Mode noise. So, those ferrite torroids helped! If I remember correctly the only jumper (on amplifier board) I changed was the one that
By rfsam · #21358 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Incidentally, Chavdar mentions jumpers for Dipole mode, I assumed that the switch between modes is all you need? Have you got a close up of all the jumpers set on your device? (as a sanity check)
By sean@... · #21357 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Simon, Thanks for the info. There is a lot to learn about noise, much of which I simply don't have the tools or instruments to do any real science with, however taking advice and applying some
By sean@... · #21356 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Sean, I went through similar issues last year. I also have AAA-1 from Chavdar. Here is one of the posts with Chavdar's recommendations: /g/loopantennas/message/19476 I use CAT8
By rfsam · #21355 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Fred, If I switch to dipole mode, I get an increase in SNR but the noise floor his higher too. Now I have the switch box made, I can do some more testing! Cheers Sean
By sean@... · #21354 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Fred, Ah! OK, thanks for that. Looks like I will be redoing the FTP cable - such a delightful job with Cat6a - tomorrows tinker time. How many turns you recommend? I think I have 4 on there now.
By sean@... · #21353 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Sean, all used lines must be wound on the ferrite toroid, or must be choked with separate toroids.? It is not enough to have a common-mode choke in the RF-Feedline only. In this case common-mode
By Fred M · #21352 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Martin, Something like what I have done here: (the orange pair is the RF pair) /g/loopantennas/photo/302470/3917370?p=Created%2C%2C%2C20%2C2%2C0%2C0
By sean@... · #21351 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
What you might do is run just one loop for testing, then you can null out the strongest noise offenders with a simple azimuth change. The loop configured as you have it isn't going to be able to null
By n0sya · #21350 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Sean See lz1aq web site for details of cat5/6 common mode choke..its small in size..you use the inner cables, no screen, no outer. A fews caps and small ferrite and in an ip rated box Simon g0zen
By Simon · #21349 ·
Re: Added photo album Orthogonal Loop #photo-notice
Will do, I'm using KiwiSDR monitor to graph SNR across a few different ranges. So I will keep track of it once I have finished tinkering (I know, there is no such thing as "finish tinkering") Cheers
By sean@... · #21348 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Simon, I do intend to rebuild this at some stage with a new material, as the PVC pipe is possible a bit weak as the intersection point and a fairly strong wind is like going to break it, so will do
By sean@... · #21347 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Hi Martin, Are you suggesting winding the cat6a through a ferrite core? I'm almost certain, to achieve this, I would need a ferrite the size of a dinner plate :-D It is double shielded, has aluminium
By sean@... · #21346 ·
Re: Added photo album Orthogonal Loop #photo-notice
Keep us informed as to how well it works across it's Freq Range. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? Garey Wittich
By gareywittich2000 · #21345 ·
Re: LZ1AQ / Orthogonal Plane / Cooper Loop - Poor Performance
Sorry Fred, The AAA-1C amplifier has two amplifiers: one low input impedance loop amplifier, and one high input impedance amplifier for dipole mode. In orthogonal configuration the two loops are
By Bela Torok · #21344 ·