Search found 275 matches

by Andrew (grayhat)
Tue Jun 21, 2022 10:14 am
Forum: General Discussion
Topic: [OT?] Metal enclosures
Replies: 0
Views: 24812

[OT?] Metal enclosures

Folks, do you know a good and possibly cheap manufacturer of metal enclosures for electronics in EU (or shipping to EU, no china stuff, please) ?
by Andrew (grayhat)
Sun Jun 19, 2022 9:44 pm
Forum: General Discussion
Topic: The Belka (-DSP/-DX/-v3) appreciation thread
Replies: 34
Views: 84366

Re: The Belka DSP/DX appreciation thread

Well, let me start by writing that the belka deserves appreciation, then, this same thread may also be useful to post comparisons between the belka and other receivers and discussions related to external antennas which fit well or poorly with that little wonder :)
by Andrew (grayhat)
Sun Jun 19, 2022 8:07 pm
Forum: Questions & Advice
Topic: Antenna clip cable
Replies: 15
Views: 30847

Re: Antenna clip cable

I was looking for the same thing to use with a CC Crane Skywave SSB (no antenna jack); did not find it sold separately so just bought "XHDATA AN-80 Shortwave Reel Antenna FM SW External Antenna" from Amzn which includes the socket-clip adapter. Dave. Dave, I keep wondering why people keep...
by Andrew (grayhat)
Sun Jun 19, 2022 12:56 pm
Forum: Utility Stations
Topic: 104's log thread
Replies: 23
Views: 46348

Re: 104's log thread

@104: The thread you posted on had the topic "what's your favorite (type of) utility to chase", so that's not the right place to post your logs. I have moved the OT discussion into your own thread and will merge your other logs into it now. Edit: Done, nice opportunity to try the split/me...
by Andrew (grayhat)
Sat Jun 18, 2022 6:11 pm
Forum: Utility Stations
Topic: 104's log thread
Replies: 23
Views: 46348

Re: What's your favorite utility to chase?

104 wrote: Sat Jun 11, 2022 4:57 am COTHEN 12.222 usb Service Center.
"104" this isn't meant to post the stations you receive and, if you want to do that, post a list, not a single post for each station, it's meaningless and dispersive and won't be of help to others

thanks
by Andrew (grayhat)
Thu Jun 16, 2022 7:48 am
Forum: Questions & Advice
Topic: A simple preamp and preselector
Replies: 3
Views: 16591

Re: A simple preamp and preselector

Thanks for posting this. I am going to try it without the varactor and use a single turn loop instead of the network and see what kind of silly active loop I come up with. I will tune with a variable capacitor across the loop. I will let you know how it works! Removing the tuned stage makes very li...
by Andrew (grayhat)
Wed Jun 15, 2022 11:02 am
Forum: Questions & Advice
Topic: The cardioid loop
Replies: 9
Views: 9368

Re: The cardioid loop

Ok, had some time in my hand and decided to create a better model of the "cardioid loop" and run some simulation to check what to expect, after fiddling with various parameters and trying to optimize them, I came out with an antenna which presents an impedance of 450 Ohms, with low reactan...
by Andrew (grayhat)
Wed Jun 15, 2022 7:46 am
Forum: General Discussion
Topic: LoG antenna trick
Replies: 17
Views: 10966

Re: LoG antenna trick

I have heard great things about LOG antennas, but I can't use one here because my entire usable backyard is full of radials for my sloping wire antenna to work against. On the upside the sloping wire works really well! Well, you may always put together a LoG and use it away from home :D all in all ...
by Andrew (grayhat)
Wed Jun 15, 2022 7:18 am
Forum: General Discussion
Topic: LoG antenna trick
Replies: 17
Views: 10966

Re: LoG antenna trick

Edit: OMG, there is so much to learn from this! :) IIRC some post(s) in some discussion somewhere suggested that minimally elevating the wire would be advantageous. According to the simulation, only a few centimeters dramatically decrease the influence of the ground and turn the LoG into a "cl...
by Andrew (grayhat)
Tue Jun 14, 2022 3:29 pm
Forum: General Discussion
Topic: LoG antenna trick
Replies: 17
Views: 10966

Re: LoG antenna trick

Ollie, a bit of warning here; NEC modeling may be addictive and you may start modeling an antenna and adding to the model wireframe models for buildings, trees and so on :lol: Seriously, as you correctly pointed out, the program allows to SIMULATE antennas, and while the results will change in real ...