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» Intro and a CT c/s request
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 5:18 pm by Victor

» FT8 - What? Again? (Episode III)
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 4:59 pm by Alan Pilot

» Application for a CT Call Sign and a short introduction
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 4:10 pm by Victor

» Which SSB radio?
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 2:45 pm by Luke Turnbull

» Complete novice needs advice.
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 2:35 pm by Luke Turnbull

» Introduction and Callsign Request
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 2:17 pm by Paddy

» application for a call sign please
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 2:13 pm by Paddy

» 11m conditions
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 12:46 pm by NUBSTER

» CRT SS 9900 Reset question
Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeToday at 11:39 am by des7uk

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 Sirio GainMaster 5/8 0.64w Base Antenna

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redsprite
New Member
New Member
redsprite

Call Sign : 26-CT-3697
Posts : 40
Times Thanked : 0
Join date : 2020-06-27
QTH or Location : Hemel Hempstead Hertfordshire
Equipment Used : PRESIDENT MCKINLEY.RadioMoble / SIRIO GAINMASTER 5/8.Sigma Venom 1/2 wave.
Age : 67

Sirio GainMaster 5/8 0.64w Base Antenna Empty
PostSubject: Sirio GainMaster 5/8 0.64w Base Antenna   Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeFri Sep 04, 2020 7:00 pm



Hi all,

pretty much made up my mind about buying a Sirio GainMaster 5/8 Wave 0.64w Base Station Antenna.

I have a Sigma Venom halfwave at the moment. This is mounted on a 35 foot Aluminium Flag Pole 2" dieameter. It's a pretty good Antenna with an almost perfect SWR across 40 channels (took a lot of time and effort). I find it does still bring in a lot of QRM/NOISE. I have used this for about 6 months and it's obviously a cheap Antenna,but it has done well.

Been reading a lot of GOOD reviews about the 5/8 GainMaster, but I wanted to seek out peoples opinions who have used...and STILL use these Antennas.

Be very grateful of some opinions of just how good....or...bad this Antenna is.
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Sydthecat
CT Directors
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Sydthecat

Call Sign : 2E0VRX
Posts : 320
Times Thanked : 15
Join date : 2019-06-26
QTH or Location : Yorkshire dales
Equipment Used : Yaesu FTdx 101d, MD200 mic ,Mosley 3ele Yagi
Age : 55

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PostSubject: Re: Sirio GainMaster 5/8 0.64w Base Antenna   Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeFri Sep 04, 2020 7:32 pm

Hi Stephan 

The GM is a fine choice and performance wise one of the best, only let down slightly  by its durability and dosent like to much power entering it 


Craig

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Rotel240
New Member
New Member


Posts : 11
Times Thanked : 0
Join date : 2019-06-28
QTH or Location : Yorkshire

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PostSubject: Re: Sirio GainMaster 5/8 0.64w Base Antenna   Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeFri Sep 04, 2020 8:16 pm

The SGM is a excellent performer and has low swr from 26_30 mhz, you will still get qrm and noise with any antenna,I have had mine up a good while and bends happily in the winds, the trick to mounting SGM is on a long pole so it can flex and not take all the strain, if mounted on a short stubby pole it will break.

NUBSTER, glenn dog and redsprite like this post

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redsprite
New Member
New Member
redsprite

Call Sign : 26-CT-3697
Posts : 40
Times Thanked : 0
Join date : 2020-06-27
QTH or Location : Hemel Hempstead Hertfordshire
Equipment Used : PRESIDENT MCKINLEY.RadioMoble / SIRIO GAINMASTER 5/8.Sigma Venom 1/2 wave.
Age : 67

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PostSubject: Re: Sirio GainMaster 5/8 0.64w Base Antenna   Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeFri Sep 04, 2020 10:06 pm

Thanks for your thoughts guy's.

Yeah this is on a 5 section interlocking 2" Aluminium, 25ft pole clamped into two very heavy gauge 6" x 9" stand-off brackets that are bolted to a wall and 10ft off the ground. VERY strong and flexible. I stood watching my Sigma swaying around in the recent gale force winds we had here,and the Aluminion pole took most of the pressure. In the strongest gusts the pole moved 8"-10" but there was absolutely no problem, so the GainMaster will be fine,it only weighs 6 kilos 6.6lb so it will be like strapping a feather to a Telegraph Pole.

Steph

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glenn dog
Senior contributor
Senior contributor
glenn dog

Call Sign : 56-CT-004
Posts : 127
Times Thanked : 9
Join date : 2019-08-23
QTH or Location : TUUSLA- FINLAND
Equipment Used : ft-450d-mc kinley - cobra 19dxeu- lincoln+2 - superstar lord - grant 2 - tti hand held- alan42- crt mike cb - zodiac 68 hunting radio hand held- and few PMR 2
Age : 52

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PostSubject: Re: Sirio GainMaster 5/8 0.64w Base Antenna   Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitimeSat Sep 05, 2020 4:25 am

Had my GM up for 18mths now, working very well, and can take the winter temps i get here in  Finland, even bends ok with ice on it, had good local and dx on it this summer.

56CT004
GLENN

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PostSubject: Re: Sirio GainMaster 5/8 0.64w Base Antenna   Sirio GainMaster 5/8 0.64w Base Antenna Icon_minitime

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