Search found 143 matches
- Fri Jan 20, 2012 4:34 pm
- Forum: Amateur Radio
- Topic: Another branch of amateur radio - Base Jumping
- Replies: 0
- Views: 5059
- Thu Jan 12, 2012 9:15 pm
- Forum: General
- Topic: Interesting vehicle with antenna
- Replies: 3
- Views: 5439
Interesting vehicle with antenna
Do anyone ever seen this kind of vehicle ?
- Thu Dec 22, 2011 1:14 pm
- Forum: General Scanning
- Topic: Narrowband Radios
- Replies: 5
- Views: 4106
Re: Narrowband Radios
Recently I ask someone in a Facebook Narrowband discussion group about what sort of receiver they are using for this kind of broadcast and they said that the narrowband subscribers use special custom made receivers that are fixed to the broadcast frequency and cannot be changed to any other frequenc...
- Tue Dec 20, 2011 9:18 pm
- Forum: General
- Topic: Whip or antenna
- Replies: 12
- Views: 9778
Re: Whip or antenna
You guys just gave me an idea :twisted: ... I have a whip antenna lying on the back seat of my car ... next time someone ask me for money again at the carpark I will use it as a whip against them ... :smt065 (I'm serious) I assume you mean at about 50 seconds where he says "it's not an antenna,...
- Tue Dec 20, 2011 8:57 pm
- Forum: Shortwave
- Topic: QSL Cards from shortwave stations
- Replies: 3
- Views: 8864
Re: QSL Cards from shortwave stations
I guess I just started the hobby a little bit too late ...
- Tue Dec 20, 2011 2:03 pm
- Forum: Shortwave
- Topic: QSL Cards from shortwave stations
- Replies: 3
- Views: 8864
QSL Cards from shortwave stations
Has anyone ever received any QSL cards from any shortwave stations ... I have been listening to http://english.cri.cn/index.htm , emailed them and they mentioned my name in their next broadcast \:D/ ... I got really encouraged after that and push my luck by giving them signal report and ask for a QS...
- Thu Dec 15, 2011 1:07 pm
- Forum: Amateur Radio
- Topic: Advanced Licence
- Replies: 71
- Views: 56802
Re: Advanced Licence
Definitely you don't want to put the APRS in the Batmobile either ...
- Thu Dec 15, 2011 10:02 am
- Forum: Amateur Radio
- Topic: Advanced Licence
- Replies: 71
- Views: 56802
Re: Advanced Licence
Well done Ron. Good to see such enthusiasm for a "dying hobby" (not my words) Dying Hobby ... ? Really ... ? You can still pass the examine without ANY recall for oscillator theory :roll: You are right Rob, I didn't get any questions on oscillators ... instead I have got one on flux capac...
- Thu Dec 15, 2011 8:15 am
- Forum: Amateur Radio
- Topic: Advanced Licence
- Replies: 71
- Views: 56802
Re: Advanced Licence
You know what ... those oscillators are nothing compares to the paper works after the exams ... that's when the real exam begin ...VK6ZMS wrote:The oscillators Doug ..... Tell him about the oscillators muhaaaaa
- Thu Nov 17, 2011 9:25 am
- Forum: Amateur Radio
- Topic: 1:1 Balun Current Type for VHF range
- Replies: 11
- Views: 6428
Re: 1:1 Balun Current Type for VHF range
Yeah, definitely I will give it a go if I don't receive the Unadilla W2DU 1:1 VHF Balun that I ordered a few days ago ...
What I will do is to use the PVC spreader for the quad as the choke balun former ...
What I will do is to use the PVC spreader for the quad as the choke balun former ...
- Wed Nov 16, 2011 10:55 am
- Forum: Amateur Radio
- Topic: 1:1 Balun Current Type for VHF range
- Replies: 11
- Views: 6428
Re: 1:1 Balun Current Type for VHF range
A choke balun might do the trick. For VHF, 5-10 turns of RG-58U around some PVC pipe (25mm or 32mm diameter). As close to the antenna feed point as possible. Also make sure the feed line is perpendicular to the elements (ie try not to run the feed parallel to anything on the antenna. Also-also use ...
- Tue Nov 15, 2011 3:17 pm
- Forum: Amateur Radio
- Topic: 1:1 Balun Current Type for VHF range
- Replies: 11
- Views: 6428
Re: 1:1 Balun Current Type for VHF range
Yeah definitely it also sound awesome ... ! Anyway I have been trying hard to browse the internet looking for a detailed instructions on how to actually make this bazooka ... All I can find was just diagrams that explain how everything is connected ... However I found this instruction with nice phot...
- Tue Nov 15, 2011 2:23 pm
- Forum: Amateur Radio
- Topic: 1:1 Balun Current Type for VHF range
- Replies: 11
- Views: 6428
Re: 1:1 Balun Current Type for VHF range
I was just reading this article about unbalanced line and balanced antenna (in this case is the driven element of the quad which happened to be a full wave loop ) If we transmit in this manner it will make the transmission line become part of the antenna and radiate RF ... apparently it beat the pur...
- Tue Nov 15, 2011 9:01 am
- Forum: Amateur Radio
- Topic: 1:1 Balun Current Type for VHF range
- Replies: 11
- Views: 6428
1:1 Balun Current Type for VHF range
Hello ... !
Does anyone know where to get a 1:1 Balun Current Type for VHF range locally ?
Similar to W2DU VHF-B from http://www.unadilla.com/?p=97 ... I made my homebrew 2m 4 elements quad http://www.youtube.com/watch?v=zgQiISj4cc4 and I'm trying to improve it by putting a 1:1 balun to it ...
Does anyone know where to get a 1:1 Balun Current Type for VHF range locally ?
Similar to W2DU VHF-B from http://www.unadilla.com/?p=97 ... I made my homebrew 2m 4 elements quad http://www.youtube.com/watch?v=zgQiISj4cc4 and I'm trying to improve it by putting a 1:1 balun to it ...
- Sun Oct 16, 2011 1:48 pm
- Forum: Amateur Radio
- Topic: WA VHF Group Spring Scramble
- Replies: 2
- Views: 3631
Re: WA VHF Group Spring Scramble
That was my first contest ... =D> I really enjoyed that ! Thank's