Sirio gpe27 questions ?

The place to talk about specific radios, equipment and accessories. Do you prefer the latest generation of rigs and antennas or do you like the classics? Discuss it here!
User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Sirio gpe27 questions ?

Post by gmham » 30 Apr 2018, 18:52

Guys just bought myself a Sirio GPE27 and looking for a bit off advice :

1/ Have used good quality waterproof tape over each join which in itself will hopefully prevent the small screws holding each section from rattling out ! Have heard off a few users reporting the swr increasing when the antenna is wet so any other waterproofing required at the base off the antenna or at the tuning rod ?

2/ This tuning rod doesn't half rattle about !! anything to do to stop it ?

3/ The 3 base radials .. I take it they just sandwich between the base and the extra base plate ? I see from the picture off the antenna at which angle they sit but not 100% sure if they just sit next to the screws ?

Thanks guys. John
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
ch25
Super Member
Super Member
Posts: 376
Joined: 03 Dec 2016, 11:07
Call Sign: n0call
Location: Poland

Re: Sirio gpe27 questions ?

Post by ch25 » 30 Apr 2018, 19:15

I would get rid of screws which are used on radiating element and I would use ss hose clamps or better screws with nuts through the pipe.
You can't have too many antennas...

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 30 Apr 2018, 19:46

Yep thanks mate you did mention before when talking about the gpe27 to use as hose clips.to be honest everything seems nice and tight and secure just now especially with the HDbtape but will keep an eye on it after a few months off our great British summer !!
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
ch25
Super Member
Super Member
Posts: 376
Joined: 03 Dec 2016, 11:07
Call Sign: n0call
Location: Poland

Re: Sirio gpe27 questions ?

Post by ch25 » 30 Apr 2018, 19:55

I went through this in the past, but as you wish...
Tape will protect screws from falling down, but won't give good electrical contact between each pipe.
Bad engineering or cost reduce, whatever. That should be done right.
Chris
You can't have too many antennas...

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 30 Apr 2018, 19:59

Okay thanks will grab a few hose clips .
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
Mudslinger
Legend
Legend
Posts: 6744
Joined: 28 Jul 2010, 07:11
Location: Oxfordshire

Re: Sirio gpe27 questions ?

Post by Mudslinger » 01 May 2018, 17:19

Mine has been up 4 years now with just the orignal self tappers covered with tape and no issues. if ther was a problem I would drill right through and use a M3 screw (In stanless) and a nyloc nut on the other side.

I don't like the idea of cutting the ends and using hose clips.

Yes the radials just sandwich between the base and the plate.
Mudslinger - Simon
26TM274
26CT612

There is no such thing as a Fidelity 1000 which is too good to scrap.

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 01 May 2018, 23:19

Cheers Simon, take it apart from the extra waterproofing on the joins there was no extra waterproofing required at the base or anywhere else such as the top tuning whip ? Looking again at the extra base plate it has a triangle shape on it, do the radials follow the lines off this triangle .. not sure if it matters as long as they are making contact with the rest off the antenna ?! Does your own one change swr much with the rain ? Any pics off yours up / what height you got it at ?
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
ch25
Super Member
Super Member
Posts: 376
Joined: 03 Dec 2016, 11:07
Call Sign: n0call
Location: Poland

Re: Sirio gpe27 questions ?

Post by ch25 » 02 May 2018, 09:59

No waterproofing needed. Drill small hole at the bottom to allow water flow out.
You can't have too many antennas...

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 02 May 2018, 10:49

Okay thanks thought there was a couple off drain holes on my one but will check again.
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
Mudslinger
Legend
Legend
Posts: 6744
Joined: 28 Jul 2010, 07:11
Location: Oxfordshire

Re: Sirio gpe27 questions ?

Post by Mudslinger » 02 May 2018, 12:09

gmham wrote:
01 May 2018, 23:19
Cheers Simon, take it apart from the extra waterproofing on the joins there was no extra waterproofing required at the base or anywhere else such as the top tuning whip ? Looking again at the extra base plate it has a triangle shape on it, do the radials follow the lines off this triangle .. not sure if it matters as long as they are making contact with the rest off the antenna ?! Does your own one change swr much with the rain ? Any pics off yours up / what height you got it at ?
I taped up every join including the top adjustable whip join, there should be a hole in the base for drainage already which I didn't tape up.

The radials follow the creases in the metal plate.

I have no problems with SWR in the rain, in fact it has been remarkably stable over the 4 years it has been up.

I have it mounted on a 20 foot pole bolted to the garage, I would like it higher but I don't think the wall is strong enough.
Mudslinger - Simon
26TM274
26CT612

There is no such thing as a Fidelity 1000 which is too good to scrap.

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 02 May 2018, 12:11

That's great Simon thanks for that very helpful. Again if you do have a couple off pics you could fwd off your own installation then that would be great to see. John
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
Mudslinger
Legend
Legend
Posts: 6744
Joined: 28 Jul 2010, 07:11
Location: Oxfordshire

Re: Sirio gpe27 questions ?

Post by Mudslinger » 02 May 2018, 12:31

John, PM me an email address it is easier than trying to upload here.
Mudslinger - Simon
26TM274
26CT612

There is no such thing as a Fidelity 1000 which is too good to scrap.

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 02 May 2018, 12:38

Done !! Thanks for that.
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

User avatar
Mudslinger
Legend
Legend
Posts: 6744
Joined: 28 Jul 2010, 07:11
Location: Oxfordshire

Re: Sirio gpe27 questions ?

Post by Mudslinger » 02 May 2018, 13:04

I emailed some pics. I do have some more somewhere but I'm damned if I can find them.
Mudslinger - Simon
26TM274
26CT612

There is no such thing as a Fidelity 1000 which is too good to scrap.

User avatar
gmham
Top Poster
Top Poster
Posts: 1785
Joined: 13 Aug 2009, 11:27
Call Sign: 108TM154

Re: Sirio gpe27 questions ?

Post by gmham » 15 Jul 2018, 18:24

Argh new Sirio gpe27 5/8 wave been working fine with low swr until today when we had our first bout off rain and yep swr checked and it's now much higher. Paid particular attention to the waterproofing off the joints off the antenna and antenna connectors also very well protected. Obviously rain is getting in somewhere, anyone any suggestions ?
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests