FS: MFJ 220mhz ground plane $20.00
 

This is the MFJ 1/4 wave ground plane antenna. It is currently cut for 220,
but can be cut down for 144mhz.
It is assembled at the moment. I had it up for about 6 months, but decided
to take it down.
It is in like new condition. Comes with U bolt for mounting.

$20.00 plus $5.00 shipping.

email direct if interested

While I am somewhat adept at cutting a 144 to 220, for the life of me I do
not know how to do the converse...

"CommCtr1" wrote in message
...
This is the MFJ 1/4 wave ground plane antenna. It is currently cut for
220,
but can be cut down for 144mhz.
It is assembled at the moment. I had it up for about 6 months, but decided
to take it down.
It is in like new condition. Comes with U bolt for mounting.

$20.00 plus $5.00 shipping.

email direct if interested

Just how does one go abt STRECHING the radiator since 220mhz requires a
shorter radiator than 144mhz. If you would impart this information to the
ham community, I do beleive that you will be a hero!!!! Or at very least
well liked!!!

Dan

--
If I am tired now, why do I have to RETIRE later?

Hmmm ?? A construction project!! Or, is it a recipe?

Start with a 48 inch length of stainless steel 1/16 inch diameter rod.

Add a new coil at one end to be tapped for a 50 ohm match at 146 MHz.

Add a new capacitor connected in parallel with the coil.

Adjust capacitor and inductance to achieve 146 MHz resonance.

Using an antenna analyzer locate and solder a tap coil for 50 ohm match.

Seal all with a strong weather proof sealant.

Install in mount provided at point of sale.

Install on vehicle.

After failure, replace with commercial 146 MHz antenna

Deacon Dave, W1MCE

Well you see gentlemen, after spending a day up on the roof, it appears I
typed without proof reading.
You would all be correct, how would you cut a 220mhz antenna to work on
144mhz????? Good question!
So let me stand corrected and say, it can be cut for
440mhz.......................... NOT 144mhz.
Thanks for noticing my mistake............

73

Lou

Wire strecher maybe, cutter - don't think so!
Retired, now life moves at my pace.
please note spam filter

20 bux hu?

You can built one out of a SO-239 coax connector, a aluminum L bracket. A
U-bolt, and some welding wire/and or solid copper and some solder....maybe
5 bux at most.

Dan/W4NTI

"CommCtr1" wrote in message
...
Well you see gentlemen, after spending a day up on the roof, it appears I
typed without proof reading.
You would all be correct, how would you cut a 220mhz antenna to work on
144mhz????? Good question!
So let me stand corrected and say, it can be cut for
440mhz.......................... NOT 144mhz.
Thanks for noticing my mistake............

73

Lou

AWW ... you took all the fun out of the project :-)

DD

CommCtr1 wrote:

Well you see gentlemen, after spending a day up on the roof, it appears I
typed without proof reading.
You would all be correct, how would you cut a 220mhz antenna to work on
144mhz????? Good question!
So let me stand corrected and say, it can be cut for
440mhz.......................... NOT 144mhz.
Thanks for noticing my mistake............

73

Lou

"Dan/W4NTI" w4nti@get rid of this mindspring.com wrote in message
ink.net...
20 bux hu?

You can built one out of a SO-239 coax connector, a aluminum L bracket.
A
U-bolt, and some welding wire/and or solid copper and some
solder....maybe
5 bux at most.

Too expensive....all you need is an SO-239 and a coffee can with a piece of
copper wire and some solder

Dan/W4NTI

"CommCtr1" wrote in message
...
Well you see gentlemen, after spending a day up on the roof, it appears
I
typed without proof reading.
You would all be correct, how would you cut a 220mhz antenna to work on
144mhz????? Good question!
So let me stand corrected and say, it can be cut for
440mhz.......................... NOT 144mhz.
Thanks for noticing my mistake............

73

Lou

Well you see gentlemen, after spending a day up on the roof, it appears I
typed without proof reading.
You would all be correct, how would you cut a 220mhz antenna to work on
144mhz????? Good question!
So let me stand corrected and say, it can be cut for
440mhz.......................... NOT 144mhz.
Thanks for noticing my mistake............

Typos do slip in. You could split the element about halfway and fold it out
the other way to make the elements longer.