Search found 274 matches
- Tue Jun 14, 2022 6:53 am
- Forum: Utility Stations
- Topic: 104's log thread
- Replies: 23
- Views: 40203
Re: What's your favorite utility to chase?
11.282 usb AIRINC San Francisco Radio. Some Alaskan Airlines Comms. Some mill. air. Outstanding late night monitoring. Hi "104" please don't use this discussion as a receiving log, if you want to post your logs, make a list of your entries and then make a single post with them, not a bunc...
- Mon Jun 13, 2022 6:24 pm
- Forum: Questions & Advice
- Topic: The cardioid loop
- Replies: 9
- Views: 8670
Re: The cardioid loop
Just had an idea; what about transforming one of those "chinese loop antennas" like the MLA-30, into a cardioid loop ? Mine is down the basement, so it will take some time to put it back on duty, but if someone here had an MLA at hand, I think it may be an interesting experiment; it would ...
- Fri Jun 10, 2022 5:18 pm
- Forum: Questions & Advice
- Topic: Generate your personal azimuthal map
- Replies: 8
- Views: 20187
- Fri Jun 10, 2022 1:29 pm
- Forum: General Discussion
- Topic: LoG antenna trick
- Replies: 17
- Views: 10225
Re: LoG antenna trick
Here's a video I shot last year using the passive 20m LoG antenna before I shot the pics above: [...] That's 16,000km away from my secret LOG testing ground, on a day with no particularly elevated condx. The link seems to be working, and the video shows what an antenna laying on ground can do; then...
- Fri Jun 10, 2022 12:33 pm
- Forum: Questions & Advice
- Topic: selecting a new receiver
- Replies: 18
- Views: 44616
Re: selecting a new receiver
I've used a W6LVP loop in the past and was very pleased with the performance. Attached is a photo of it (from a few years ago) in the shack installed on a tripod with an RCA rotor. Eventually I moved the antenna outdoors for even better reception. It's an active antenna with a preamp. Don't know wh...
- Fri Jun 10, 2022 12:30 pm
- Forum: Utility Stations
- Topic: What's your favorite utility to chase?
- Replies: 10
- Views: 36284
- Fri Jun 10, 2022 12:16 pm
- Forum: Questions & Advice
- Topic: Matching an external antenna to the Belka-DX?
- Replies: 10
- Views: 9584
Re: Matching an external antenna to the Belka-DX?
Oh and, as for "matching", if you feel you need such a thing, you may just pick an MFJ-956 , it won't break the bank and will serve you honestly well, plus, if you'll then decide you'll need a preamp, you may pick up whatever wideband LNA and place it between the MFJ-956 and the receiver s...
- Fri Jun 10, 2022 10:03 am
- Forum: Questions & Advice
- Topic: Matching an external antenna to the Belka-DX?
- Replies: 10
- Views: 9584
Re: Matching an external antenna to the Belka-DX?
Like the typical home, mine has its share of RFI. That's one reason the loosely-wound helical vertical was interesting, because the noise floor was lower. (But to make that antenna permanent, I need a dedicated broomstick, not the actual household broom!) I have taken the Belka outdoors on several ...
- Fri Jun 10, 2022 7:50 am
- Forum: Questions & Advice
- Topic: What is the best indoor antenna for SWLing?
- Replies: 19
- Views: 36136
Re: What is the best indoor antenna for SWLing?
A reel up won't work like a loop, what I was suggesting is to tape a wire rectangle inside the window glass at some inches from the window frame (if it's a metal one), connect the ends of the resulting rectangular loop to a balun and from there run the coax to the receiver, willing to turn that ant...
- Thu Jun 09, 2022 7:21 pm
- Forum: Questions & Advice
- Topic: Matching an external antenna to the Belka-DX?
- Replies: 10
- Views: 9584
Re: Matching an external antenna to the Belka-DX?
As a note, the "belka" isn't so picky about impedance (and a lot of oldtime rigs won't present 50 Ohms as their input impedance), no, the issue (if we want to call it so) is mainly about input levels; start by setting the antenna gain to min if you aren't using the stock whip, and, when it...