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Call Sign : 26-CT-4065 Posts : 3 Times Thanked : 0 Join date : 2021-04-12 QTH or Location : Grimsby Equipment Used : CRT SS 6900 , Sainhaix N60 , Inrico S200 Age : 54
Subject: My SWR problem solved. Wed Apr 14, 2021 9:19 pm
I had trouble with my antenna , you know SWR at just around one to five , so bought a Zetagi TM999 matcher , bobs your uncle now down to one to one. Happy days.
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NUBSTER 10 + Year member
Call Sign : 26 CT050 26 FB080 26 WT105 26 TE171 Posts : 948 Times Thanked : 51 Join date : 2019-06-27 QTH or Location : NORTH LONDON Equipment Used : ORIGINAL President Lincoln, President Teddy , Silver Eagle microphones , Gainmaster antenna, use a AMP ofcourse I do sometimes Age : 66
Subject: Re: My SWR problem solved. Wed Apr 14, 2021 11:01 pm
Matchers only lie to the radio so it thinks its a low SWR so it doesn't blow the outputs ,so infact your antenna is still at what it is without the matcher being in line, so basically you still have a problem with your antenna but 1.5 is pretty normal TBH the 1:1 SWR is a bit of a myth to actually achieve .
BigTone and Thundercatbase like this post
Thundercatbase New Member
Call Sign : 26-CT-4065 Posts : 3 Times Thanked : 0 Join date : 2021-04-12 QTH or Location : Grimsby Equipment Used : CRT SS 6900 , Sainhaix N60 , Inrico S200 Age : 54
Subject: My SWR problem solved. Thu Apr 15, 2021 5:00 am
Kind of know what you mean , I am happy with it so ...
43CT016 Major contributor
Call Sign : 43-CT-016 Posts : 369 Times Thanked : 22 Join date : 2019-11-17 QTH or Location : Perth Equipment Used : iCom IC-7610/IC-9700/IC-705 Age : 55
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 6:42 am
Thundercatbase wrote:
I had trouble with my antenna , you know SWR at just around one to five , so bought a Zetagi TM999 matcher , bobs your uncle now down to one to one. Happy days.
What you have done is matched the impedance of the radio to the antenna, presenting what looks like a perfect SWR, and allowing the radio to deliver full power to the load. If whatever was causing a poor SWR was a fault or poor match, it will still be there, and possibly hurting your efficiency.
Mind you, not sure whether you meant 1.5:1 or 5:1, as 1.5:1 is fine, and you won't see any difference in real terms between 1:1 and 1.5:1....all a true 1:1 means is perfect (resistive) 50 ohm impedance and no reactive component, which is hard to get unless you are building the antenna to do that in your environment.
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NUBSTER 10 + Year member
Call Sign : 26 CT050 26 FB080 26 WT105 26 TE171 Posts : 948 Times Thanked : 51 Join date : 2019-06-27 QTH or Location : NORTH LONDON Equipment Used : ORIGINAL President Lincoln, President Teddy , Silver Eagle microphones , Gainmaster antenna, use a AMP ofcourse I do sometimes Age : 66
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 6:50 am
43CT016 wrote:
Thundercatbase wrote:
I had trouble with my antenna , you know SWR at just around one to five , so bought a Zetagi TM999 matcher , bobs your uncle now down to one to one. Happy days.
What you have done is matched the impedance of the radio to the antenna, presenting what looks like a perfect SWR, and allowing the radio to deliver full power to the load. If whatever was causing a poor SWR was a fault or poor match, it will still be there, and possibly hurting your efficiency.
Mind you, not sure whether you meant 1.5:1 or 5:1, as 1.5:1 is fine, and you won't see any difference in real terms between 1:1 and 1.5:1....all a true 1:1 means is perfect (resistive) 50 ohm impedance and no reactive component, which is hard to get unless you are building the antenna to do that in your environment.
Exacltly what I said but more long winded @OP I don't get what If you kinda know what I mean TBH , we have both exsplained to you the matcher is lying to your radios at some point if your SWR does actually go high you won't know because of the matcher and BANG no more radio outputs have blown, we are trying to save your radio and you money on repairs mate.
Last edited by NUBSTER on Thu Apr 15, 2021 6:58 am; edited 1 time in total
43CT016 Major contributor
Call Sign : 43-CT-016 Posts : 369 Times Thanked : 22 Join date : 2019-11-17 QTH or Location : Perth Equipment Used : iCom IC-7610/IC-9700/IC-705 Age : 55
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 6:55 am
NUBSTER wrote:
43CT016 wrote:
Thundercatbase wrote:
I had trouble with my antenna , you know SWR at just around one to five , so bought a Zetagi TM999 matcher , bobs your uncle now down to one to one. Happy days.
What you have done is matched the impedance of the radio to the antenna, presenting what looks like a perfect SWR, and allowing the radio to deliver full power to the load. If whatever was causing a poor SWR was a fault or poor match, it will still be there, and possibly hurting your efficiency.
Mind you, not sure whether you meant 1.5:1 or 5:1, as 1.5:1 is fine, and you won't see any difference in real terms between 1:1 and 1.5:1....all a true 1:1 means is perfect (resistive) 50 ohm impedance and no reactive component, which is hard to get unless you are building the antenna to do that in your environment.
Exacltly what I said but more long winded
Not quite - you said "lie to the radio", I said "impedance match".
Anyway, I do apologise for daring to offer an opinion on your forum where you are clearly the only font of all knowledge.
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NUBSTER 10 + Year member
Call Sign : 26 CT050 26 FB080 26 WT105 26 TE171 Posts : 948 Times Thanked : 51 Join date : 2019-06-27 QTH or Location : NORTH LONDON Equipment Used : ORIGINAL President Lincoln, President Teddy , Silver Eagle microphones , Gainmaster antenna, use a AMP ofcourse I do sometimes Age : 66
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 7:00 am
I thought Australians had a sense of humour obviously not
Alan Pilot Major contributor
Call Sign : 163-CT-220... Posts : 2649 Times Thanked : 70 Join date : 2019-11-19 QTH or Location : Anglesey North Wales Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7610,,Anytone AT-D878UV PLUS",,LINCOLN II+. Age : 16
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 7:03 am
Now then boy's play nicely. We all know Nubster jumps in with both feet then thinks after.
43CT016 Major contributor
Call Sign : 43-CT-016 Posts : 369 Times Thanked : 22 Join date : 2019-11-17 QTH or Location : Perth Equipment Used : iCom IC-7610/IC-9700/IC-705 Age : 55
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 7:05 am
NUBSTER wrote:
I thought Australians had a sense of humour obviously not
I'm from London, and you in no way intended that as a joke.
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NUBSTER 10 + Year member
Call Sign : 26 CT050 26 FB080 26 WT105 26 TE171 Posts : 948 Times Thanked : 51 Join date : 2019-06-27 QTH or Location : NORTH LONDON Equipment Used : ORIGINAL President Lincoln, President Teddy , Silver Eagle microphones , Gainmaster antenna, use a AMP ofcourse I do sometimes Age : 66
Subject: Re: My SWR problem solved. Thu Apr 15, 2021 8:37 am
No worries Alan mate but thanks ,too many boring people on this forum lately and people who don't want advise then cry when there radios blow up or set up doesn't work , I'm surprised there isn't a gardening and illness ailment section (like top band) on here if you get my meaning LOL