Charlie Tango 11m DX Radio Group Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.


Welcome to the Charlie Tango DX Group. The home of ALL things Radio - CB, 11m DX, Amateur, PMR446, PLD, Network and Data. We welcome all radio enthusiasts of all knowledge levels. Join today and claim your own unique World Famous CT Call-sign
 
HomeEventsCalendarFAQLatest imagesSearchRegisterLog in
Join in with the fun of the Charlie Tango DX Group Summer 10m Challenge - from April 1st 2024
Navigation
Useful Radio Sites
Log in
Username:
Password:
Log in automatically: 
:: I forgot my password
CT Bill Board





Views This Year
All Time Views
Classified Adverts

Latest topics
» 10m dxcc ......
antenna - Returning to the fold - antenna question Icon_minitimeToday at 1:58 pm by SangueG

» Antenna Advice.....?
antenna - Returning to the fold - antenna question Icon_minitimeToday at 1:49 pm by SangueG

» First dx in 40 plus years
antenna - Returning to the fold - antenna question Icon_minitimeYesterday at 8:36 pm by John123

» Multimode mobile antenna
antenna - Returning to the fold - antenna question Icon_minitimeYesterday at 8:36 am by peewee norfolk

» New member call sign request (Issued)
antenna - Returning to the fold - antenna question Icon_minitimeYesterday at 5:03 am by Victor

» New call sign request (Issued)
antenna - Returning to the fold - antenna question Icon_minitimeTue Mar 26, 2024 10:19 pm by John123

» Call Sign Request (Issued)
antenna - Returning to the fold - antenna question Icon_minitimeTue Mar 26, 2024 6:37 pm by Jimnic333

» had a change around
antenna - Returning to the fold - antenna question Icon_minitimeTue Mar 26, 2024 6:22 am by SangueG

» Back Again (Returning Member)
antenna - Returning to the fold - antenna question Icon_minitimeMon Mar 25, 2024 8:34 pm by John123

Keywords
2022 president Mobile callsign 6900 antenna display 2023 call Mckinley Baofeng anytone meter supply ALINCO frequency list Sirio ss9900 sign lincoln power yaesu 9900 chart software
QRZ Database

 

 Returning to the fold - antenna question

Go down 
5 posters
AuthorMessage
pdes
New Member
New Member



Call Sign : 26-CT-5122
Posts : 10
Times Thanked : 0
Join date : 2020-12-13
QTH or Location : Royston
Equipment Used : Anytone AT-5555 Plus

antenna - Returning to the fold - antenna question Empty
PostSubject: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSun Dec 13, 2020 11:20 am

After some 20 years, I have decided to dig out my old gear and cobble it together. However, I am confused about whip length.

I have a Sirio Hi-Power 3000 but in my box, I have a couple of whips of differing lengths. The spec for the aerial is 1740cm. Is this the length of the whip or the total length from the base of the coil to the tip of the whip?

Once I get this sorted, I am sure I'll be back for more refreshers!

Thanks

Alan - Mirror Man likes this post

Back to top Go down
The author of this message was banned from the forum - See the message
Alan Pilot
Major contributor
Major contributor
Alan Pilot


Call Sign : 163-CT-220...MW7TTA
Posts : 2510
Times Thanked : 69
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.
Age : 150

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSun Dec 13, 2020 11:54 am

If you have an SWR meter then just try them both but turn the power down.
I have the 4000 but not by me but it is quite long the whip on it.
At a guess it's around 140/150 but i would try them to see what the swr will come down to.
Not a lot of help but the best i can do sorry.

Alan - Mirror Man likes this post

Back to top Go down
pdes
New Member
New Member



Call Sign : 26-CT-5122
Posts : 10
Times Thanked : 0
Join date : 2020-12-13
QTH or Location : Royston
Equipment Used : Anytone AT-5555 Plus

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSun Dec 13, 2020 12:44 pm

Thanks both,

I have been trying the short one but the SWR meter shows a full swing on 3, i.e. no difference between FWD and REF.  Unfortunately, I am trying to set this up on an old Land Rover which is primarily aluminium (with a large steel chassis) so there is a chance that the ground plane isn't optimal.  I have done all the usual checks to make sure the earth, and cable characteristics are satisfactory but I don't want to start cutting the long whip (which is a new 2 meter whip) without being sure that I am close enough to the necessary length to be able to make the final, small adjustments.  I suppose, if I go by the manufacturers length and assume its from the coil base, at least this will be a reasonable starting point.

Alan - Mirror Man likes this post

Back to top Go down
Northern Crusader
Major contributor
Major contributor



Call Sign : M0GVZ / 26CT1760
Posts : 529
Times Thanked : 35
Join date : 2019-11-13
QTH or Location : IO94SA
Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike
Age : 53

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeFri Dec 18, 2020 6:24 pm

The difference in the overall lengths of 3000 and 4000 antenna is the difference in the length of the stainless steel whip as the mouldings used for the matching coil cover in the base are the same ones.

Alan - Mirror Man likes this post

Back to top Go down
Alan Pilot
Major contributor
Major contributor
Alan Pilot


Call Sign : 163-CT-220...MW7TTA
Posts : 2510
Times Thanked : 69
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.
Age : 150

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSat Dec 19, 2020 7:20 am

Did you check the coax connection in the base they can be a bit dodgy Sirio can.

Alan - Mirror Man likes this post

Back to top Go down
pdes
New Member
New Member



Call Sign : 26-CT-5122
Posts : 10
Times Thanked : 0
Join date : 2020-12-13
QTH or Location : Royston
Equipment Used : Anytone AT-5555 Plus

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSat Dec 19, 2020 9:41 pm

All, after many hours of testing, running cables, resoldering plugs and spending money on new cable and whip, I decided, as a last resort, to buy a new SWR meter. You guessed it, my SWR meter was faulty! All of my kit was fine. All tuned in 5 minutes and the old meter consigned to the bin.

Thanks again.

glenn dog and Alan - Mirror Man like this post

Back to top Go down
Alan Pilot
Major contributor
Major contributor
Alan Pilot


Call Sign : 163-CT-220...MW7TTA
Posts : 2510
Times Thanked : 69
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.
Age : 150

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSun Dec 20, 2020 7:38 am

Glad you got it sorted out.

Alan - Mirror Man likes this post

Back to top Go down
Alan - Mirror Man
Major contributor
Major contributor
Alan - Mirror Man


Call Sign : 108CT233
Posts : 201
Times Thanked : 14
Join date : 2019-12-01
QTH or Location : Central Scotland
Equipment Used : CRT SS9900 Beofeng UV5R Yaesu FTDX1200 CRT Micron CRT FP00 Sattelite 2000 antenna ZS6BKW X30 co-linear

antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitimeSun Dec 20, 2020 1:54 pm

Isn't that always the way?

Tristar likes this post

Back to top Go down
Sponsored content





antenna - Returning to the fold - antenna question Empty
PostSubject: Re: Returning to the fold - antenna question   antenna - Returning to the fold - antenna question Icon_minitime

Back to top Go down
 
Returning to the fold - antenna question
Back to top 
Page 1 of 1
 Similar topics
-
» returning to the CB fold after many years away (Issued)
» CB antenna/ PMR antenna compatibility question.
» Mobile antenna question
» Wire Dipole Antenna Question.
» PMR446 antenna near freeview aerial question

Permissions in this forum:You cannot reply to topics in this forum
Charlie Tango 11m DX Radio Group Forum :: Help and Discussion Forums :: Standard Multistandard CB Radio UK/EU/Multinorm-
Jump to: