Search found 127 matches

by 13dka
Tue Jun 14, 2022 2:53 pm
Forum: General Discussion
Topic: LoG antenna trick
Replies: 17
Views: 6351

Re: LoG antenna trick

Thanks for the .nec file! That gave me an opportunity to finally install 4NEC2 and be utterly confused by it! :) I changed the geometry to reflect my plain 20m circumference loop and I was particularly curious on A) the influence of ground conductivity / dielectric constant on gain and B) elevation ...
by 13dka
Fri Jun 10, 2022 1:40 pm
Forum: General Discussion
Topic: LoG antenna trick
Replies: 17
Views: 6351

Re: LoG antenna trick

That's exactly what I bought this switch for. :)
by 13dka
Fri Jun 10, 2022 1:13 pm
Forum: General Discussion
Topic: LoG antenna trick
Replies: 17
Views: 6351

Re: LoG antenna trick

Testing YT embedding BBCode here (having a rough start on this, 'youtu.be' URLs will not work)... :) Here's a video I shot last year using the passive 20m LoG antenna before I shot the pics above: https://www.youtube.com/watch?v=EytGtqm3lXE That's 16,000km away from my secret LOG testing ground, on ...
by 13dka
Fri Jun 10, 2022 11:16 am
Forum: Utility Stations
Topic: What's your favorite utility to chase?
Replies: 10
Views: 13265

Re: What's your favorite utility to chase?

Pretty much all of utility is a nice change from the usual to me, I like hunting NDBs or DGPS beacons in winter, DXing NAVTEX stations and of course VOLMETS and the NAT track frequencies, particularly when this gal is on duty: https://www.dropbox.com/s/vs74o2bb4d7wftr/Nice_gal_NY_LBR.mp3?dl=1 :) Edi...
by 13dka
Thu Jun 09, 2022 8:45 pm
Forum: Questions & Advice
Topic: Matching an external antenna to the Belka-DX?
Replies: 10
Views: 6232

Re: Matching an external antenna to the Belka-DX?

^^ What he said. :) I've used the Belka with very good results with various random wires, active and passive large loops and active whips... The only exception with the Belka is when the antenna is very lossy (has very little output) like an NCPL (e.g. the YouLoop), then the mismatch leads to rather...
by 13dka
Wed Jun 08, 2022 8:35 pm
Forum: Questions & Advice
Topic: What killed my PL-660?
Replies: 2
Views: 2218

Re: What killed my PL-660?

Maybe there's some useful information in this thread:

https://ham.stackexchange.com/questions ... sun-pl-660
by 13dka
Wed Jun 08, 2022 3:42 pm
Forum: Log Sharing & Broadcast Frequencies/Schedules
Topic: Unusual interference in Russian language on 7055khz
Replies: 3
Views: 6393

Re: Unusual interference in Russian language on 7055khz

Welcome to the board! The 40m CW segment has been haunted by clandestine stations for a long time now, also jamming and OTH radars, so it's not unusual to hear broadcast-like transmissions there.
by 13dka
Wed Jun 08, 2022 3:39 pm
Forum: Questions & Advice
Topic: The cardioid loop
Replies: 9
Views: 5406

Re: The cardioid loop

Thanks! Yes, the more the merrier, the sense/loop arrangement came into my mind first because that's what I have in my trunk all the time (vertical fiberglass pole and some loops) but I'm also curious on (small) arrays in general, particularly a LoG array. So much to play with, so little time! :)
by 13dka
Wed Jun 08, 2022 1:37 pm
Forum: Questions & Advice
Topic: The cardioid loop
Replies: 9
Views: 5406

Re: The cardioid loop

Thanks for that! This is absolutely something I want to play with, it's easy enough. Couldn't you have posted that before I bought this expensive phasing unit to make experiments with the original ADF antenna principle (loop + sense antenna) at the dike? :D
by 13dka
Wed Jun 08, 2022 1:31 pm
Forum: Questions & Advice
Topic: Malachit SDR (CHN clone) + Sony AN-LP1 ampl. loop
Replies: 5
Views: 2773

Re: Malachit SDR (CHN clone) + Sony AN-LP1 ampl. loop

Like that? :)

YL_Test_Setup_LANA_HF.jpg
YL_Test_Setup_LANA_HF.jpg (35.73 KiB) Viewed 2731 times

(That's a YouLoop with a LANA-HF, temporarily mounted on a boom outside for a test. That's all plastic cable duct profiles off the local DIY store, very easy to cut and held together with small screws and zip ties)