G whip

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G whip

Postby M6IXE » Thu Jan 12, 2017 12:17 am

Looking at these antennas, but theirs quite a few, can't choose, don't know what I'd be better off with, also got a tribander on special offer

Got a yaesu ft-450d, and got an mfj1022, active hf antenna plugged in, both running from a 40 amp power supply, but I think the active antenna is picking up the power pack. And other stuff

All I can hear is static everywhere, Do I need to Earth the radio?,,,

Don't know where to start,,,1st Homebase, need help :embarrased:
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Re: G whip

Postby m0lsx » Thu Jan 12, 2017 9:20 am

First what are you trying to listen to & at what time of the day?
As different bands are open at different times & active at different times as a result.
HF is effected by the season, time of day & by solar activity, so it can be blacked out for hours or even days at a time & also cyclic & currently we are at, or around the 11 year minimum, with poor propagation most days.
Weekends are the best time to listen to the amateur bands & know something is defiantly going to be there, especially if it's a contest weekend, which most are.
Also what sort of area do you live it? I live on a housing estate & now that housing associations are putting solar panels on every roof they own, plus all the TV's, switch mode power supplies etc, the noise level here over recent years has gone from s5 to s7 to 9 plus on some band, at some times of day.
Earthing a radio is a less simple question than you may think.
First if you live in a modern home, you need to check to see if your home is PME (Protective Multiple Earthed.) Which it almost certainly is. If it is PME, DO NOT earth anything as you risk you whole home becoming live, if a fault occurs at your local transformer, or on any other home feeding off it.
Earthing needs to be to a proper earth stake, using a wire short enough not to be resonant on any frequency, otherwise it becomes part of the antenna system & well thought out.

Edited to add. I run a filtered mains supply, I put (I'll call them) ferrites on everything I can, depending upon need & I have DSP on my radio, plus external audio filtering & upgraded speakers. Hearing on HF is about optimising.
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Re: G whip

Postby M6IXE » Thu Jan 12, 2017 7:45 pm

Listening today between 13:00 and 14:00,,14.220,,very good clear signals, Germany, Italy, and they were talking to someone in americas, couldn't make out what he was saying as he was at the bottom of the box. Using the mfj1022 and ft450d

Roughly same time, someone playing music on 27.76125,,,think that's probably CB/81.this was on the vx8 and the nomad in loft antenna, when I switched the nomad to the ft-450d, I couldn't hear nowt.

Think I'd have got better if I had a decent loft antenna,,,,wire

Heavy snow here, so maybe that's not helping things tonight :sad:

Got a new reel of coax coming tomorrow, just can't figure out what antenna, :dizzy: to buy,
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Re: G whip

Postby m0lsx » Thu Jan 12, 2017 7:53 pm

14 mhz, is not a night time band, which is why I asked when you were listening & to what.
80 meters is different to 40 meters & 20 meters is different to 10 or 40. Each of the old bands. 160, 80, 40, 20& 1o meters has it's own propagation behaviours & thus listen on say 20meters after dark & nothing, but 40 & 80 can come alive.
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Re: G whip

Postby M6IXE » Fri Jan 13, 2017 10:16 pm

Ok, where can I find out about what times and conditions bands open?

Thanx
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Re: G whip

Postby m0lsx » Fri Jan 13, 2017 10:58 pm

Weirdglezga wrote:Ok, where can I find out about what times and conditions bands open?

Thanx



It is not that simple.
There are general rules, but for example when a big solar wind hits the earth atmosphere the whole of HF can in effect be shut down for seconds, minutes, hours or even a few days.
There is an 11 year cycle & we are dependent upon sun spots, which currently there are none around.
But there are also things like Greyline propagation. Which is where a radio wave follows the line between day & night.
Prorogation can change direction, so one minute you are in QSO (conversation) with someone to your East or West & the next minute it is all running North/South.
A good simple explanation of HF propagation can be found at..
http://hfradio.org.uk/hfprop.pdf

For a brief idea of what is potentially possible, band by band take a look at the following. But it's only a what is possible, not what is there day after day.

Image

The HF bands are amazing, you just never know what is coming next on them. One day 20 meters is a great DX band, the next everyone is excited because we are hearing stations close by due to something called close hop. 10 meters we are told is closed at night. But it also gets VHF propagation, so can at times be wide open at night.
It's an amazing hobby & so easy to compare with fishing in so many ways. When you turn that radio on, you just never know what the fishing is going to be like, or what might be hiding, just waiting for you to catch.
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Re: G whip

Postby M6IXE » Sat Jan 14, 2017 12:02 am

Thanx Alan, you know your stuff. Hope am like that one day, I'm sure when I start the club meets il start learning. Least I've got the tools now for the job, home and mobile

Il screenshot that image and try print it out

Thanx for that link explaining things,,il check it now

:thumbup:

Got the nomad moved to a different bit of the loft where their is no to antennas or cabling,,,cabling is a couple of feet down from loft floor to ceiling height. The nomad doesn't seem to like HF,,,,just everything above that.

I can hear aberdeen coastguard on the HT,,vhf marine channels,,,with standard yaesu antenna, but when I put nomad on,,it's excellent,,,,and it's over 90 miles as the crow flies,,which I'd say is great.

Am fishing for signals, all the time,,before work and after
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Re: G whip

Postby m0lsx » Sat Jan 14, 2017 11:36 am

Weirdglezga wrote:Thanx Alan, you know your stuff. Hope am like that one day, I'm sure when I start the club meets il start learning. Least I've got the tools now for the job, home and mobile


Thanks, but I am a bit of a jack of all trades & certainly master of none. And the problem with a little knowledge about a lot of subjects is that I do not know any subject fully.
There is a lot of knowledge collectively here & some with many many years less interest in radio than me, really know their stuff on certain topics.
What I would say is go the amateur radio licence route. There is no law which says you have to be a radio amateur to hold the licence, but it offers the chance to train & learn properly across a broad spectrum of radio in a way that other routes do not.
I started out as a short wave listener in the early 70's & then came to amateur radio via years of listening & a lot of years as an unlicenced broadcaster & I had a lot to relearn, as some of the things I knew, I had not learnt properly.
There are those with big chips on their shoulders who knock amateur radio. But radio hams are a very diverse group/ For example a lot of the broadcasters I know are licensed amateurs & are always happy to help or teach, if you want to learn.
The same with this side of the hobby, an awful lot of knowledgeable people who listen are licensed.
What you get with a licence is the basics taught properly & the support & encouragement to develop from there.
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Re: G whip

Postby M6IXE » Tue Jan 17, 2017 9:05 am

LINK:

I've read the link you sent me and now understand the basics of propagation!. I can hear quite a lot on 3.5 to 3.8 MHz in morning 7.00 am, but it's morse and I can't decode it, it's too fast and unclear, I think I'd need something to turn that into words if possible, a machine of some sort. All other bands seem shut at the mo, 14-14-3 seems to be afternoon when it's open for me
My radio has dsp and I'm just starting to fiddle with it after watching a couple videos on YT.
I'm quite interested in morse code, I think it's one of the best ways of communication, but what do I know, I've a lot to learn, but it will be fun :smiles:
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