|
Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
|
Thread Tools |
22nd Feb 2020, 4:21 pm | #21 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
|
Re: Dipole antenna construction
Just to let you know I installed the new 450 ohm balanced feeder, about 16 feet, and connected it to the RG8X coax then straight into the back of the ATU using a PL259 plug and socket. The joint from the feeder to the coax was made with a Bakelite chock block and housed in an upside down Colmans mustard jar with holes cut for the wires to pass through the lid.
I did not use the balanced output of the MFJ 949E ATU. With the ATU switched to bypass the aerial now has a SWR of about 1:1.5 on 20m and on 40m it is about 1:2.5. I can use the ATU to get a low SWR on all bands except 160m. I passed my Foundation exam on Thursday, so looking forward to getting my call sign. Mike |
22nd Feb 2020, 5:50 pm | #22 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,935
|
Re: Dipole antenna construction
Well done on the callsign.
__________________
G8JET BVWS Archivist and Member V.M.A.R.S |
22nd Feb 2020, 5:59 pm | #23 | |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,902
|
Re: Dipole antenna construction
Quote:
If I can help, just ask. David GM4ZNX
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
|
22nd Feb 2020, 6:12 pm | #24 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
|
Re: Dipole antenna construction
Yes, I am studying the intermediate book now, and have put in for my course at the end of April.
Any one want to buy some more KB radios. Mike |