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 Sirio GainMaster 5/8 (Beware)

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del6600



Posts : 3
Reputation : 0
Join date : 2019-06-28
QTH or Location : Herefordshire
Call Sign : 26-CT-2711
Equipment Used : Yaesu FT-891-Sirio Gainmaster 5/8-RG213-Watson Power meter-QRM Eliminator-MFJ1886 SW Ant.

gainmaster - Sirio GainMaster 5/8 (Beware) Empty
PostSubject: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeSun Aug 11, 2019 5:12 pm

Just had a couple of days of bad rain storms plus winds up to 25+mph. I use a Sirio Gainmaster 5/8 wave mounted about 30 feet from ground to base of GM. The aerial bent a little in the wind but seemed ok. Around 7pm on Saturday [10/08/19] we heard a noise like a tap coming from outside, then over the next hour several more taps were heard. I went outside looked up at the GM and the top section was swaying in the wind, hanging on by the inner aerial cable!. No radio that night.
Today Sunday [11/08/19] the wind had died down a little although gusts were up to 15+mph. I got out the ladders and went up to get the GM down. I got the T & K U bolts unfastened but the wing was making life very difficult, eventually I got the GM down.
To my surprise the top section was not broken. The jubilee clip had come loose which holds the section together. I put the section back in but I had about 25cm of wire sticking out of the top.
I checked the other 2 jubilee clips and they were very loose also, the sections had all slipped down into one another! How the clips had come loose I will never know, all I do know is that I definitely tightened them when I first put the GM up 12 months ago.
The reason of this post: If you have a GM check the jubilee clips are tight, I was lucky this time it could have been expensive if it had cracked.
Next job is to put the GM back up, might do it tonight or I might leave to the morning?
73
26-CT-2711
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stephen Gunrunner

stephen Gunrunner

Posts : 47
Reputation : 1
Join date : 2019-06-27
Age : 63
QTH or Location : wooler north northumberland or some were near it
Call Sign : 26CT526/MR021/M6XXX
Equipment Used : ss9900 mass dx 5000 sirio 4000hp sirio 5000 turbo trimag tti 801 crt7u

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeMon Aug 12, 2019 10:59 am

yes you are lucky and it might be good to check your clips at least once a year just to be on the safe side and take care up ladders in windy 15 mph gusts and with the antenna to
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26CT867



Posts : 9
Reputation : 1
Join date : 2019-08-16
QTH or Location : Northumberland
Equipment Used : FT840 FT51r FT817nd Alinco DR-135UK to name a few

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PostSubject: scary things those gainmasters   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeSat Aug 17, 2019 12:14 am

Got one just about new in box sitting in the spare room, had it on two large wall brackets and a pole reaching only 4ft above the guttering and when the wind slightly blew it would sway about like a mobile whip antenna, great antenna to use but it scared the old people next door so much they started to walk on the other side of the road lol to keep the peice it came down after only one month wont be going up again wasted £90 on the stupid thing. 73 Phil
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John 68CT045

John 68CT045

Posts : 84
Reputation : 5
Join date : 2019-09-02
Age : 55
QTH or Location : Carrickfergus / Northern Ireland - UK
Call Sign : 68CT045
Equipment Used : (Superstar 3900 EFT) (YAESU FT 450) - (SIRIO Gainmaster)

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeSat Sep 07, 2019 4:53 pm

Thanks for the heads up as I have one in a box waiting to get put up. I didn't know that the GM was soo whippy and I was thinking of a 6ft pole and on the chimney. Food for thought!
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Manjiv



Posts : 2
Reputation : 0
Join date : 2019-10-15
QTH or Location : London
Equipment Used : President and imax

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeTue Oct 15, 2019 2:53 pm

Very good aerials, sorry to hear your one broke.
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John 68CT045

John 68CT045

Posts : 84
Reputation : 5
Join date : 2019-09-02
Age : 55
QTH or Location : Carrickfergus / Northern Ireland - UK
Call Sign : 68CT045
Equipment Used : (Superstar 3900 EFT) (YAESU FT 450) - (SIRIO Gainmaster)

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeTue Oct 15, 2019 10:36 pm

Update on mine. It has been up over a week now and seen it whip about like a flyrod. But after the strong winds had passed it is back to straight as it was first put up.

gainmaster - Sirio GainMaster 5/8 (Beware) TDKF
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Dogfish

Dogfish

Posts : 20
Reputation : 3
Join date : 2019-06-27
QTH or Location : Surrey Hills
Call Sign : CT2379
Equipment Used : Grant 2 + Tankwhip mobile with Sirio Gainmaster 5/8ths homebased

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeWed Oct 30, 2019 10:14 pm

I love mine, it brings in a bit of noise but I can handle that. It gets out well too. Hello Cardiff on SSB!
Very Happy
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Sgt Bilko

Sgt Bilko

Posts : 68
Reputation : 3
Join date : 2019-07-20
Age : 51
QTH or Location : Prestonpans. East Lothian
Call Sign : 108 ct 302 - mm0ibe
Equipment Used : Yaesu FTdx3000 Yaesu FT 891

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeThu Oct 31, 2019 11:05 am

I had one here on the chimney. Good idea is to wrap the jubilee joints in some good insulating tape thus waterproofing them and stopping the clips from moving. Had mine up for 2 years and never moved.
Only took it down to replace it with a Penetrator 500.

Paul.
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rjyoung



Posts : 1
Reputation : 0
Join date : 2020-02-10
QTH or Location : Walsall
Equipment Used : Midland

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeFri Mar 27, 2020 7:23 pm

I have one of these in a box ready to go with T and K brackets.

Good tips thanks.

I chose it due to the range of frequencies it covers.

I hope I'm not disappointed :-)
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Polaris



Posts : 7
Reputation : 0
Join date : 2020-02-01
Age : 61
QTH or Location : Horsham
Call Sign : 26-CT-858
Equipment Used : President mckinley / Albrecht AE6891

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PostSubject: Re: Sirio GainMaster 5/8 (Beware)   gainmaster - Sirio GainMaster 5/8 (Beware) Icon_minitimeThu Apr 30, 2020 8:32 pm

You won't be I have had one for the last three years on my wind up mast I will admit in high winds it dose bend a lot but to date it been absolutely fine, best aerial I have ever owned.
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