antenna question
 

I have a 50 ft. random wire (22 AWG) I use for my portable
SW's. It is indoors and just runs around the ceiling of my listening room.
Connects to the receivers with a 1/8th inch mono plug.

Now I'm looking at the Icom IC-R75 and see it needs a 500 ohm
longwire.

Is there a way to convert my random wire to function properly
with the Icom. That is, can I make it a 500 ohm wire? Alternately,
can I take it down and replace it with another wire. Since I don't
know sh*t about antennas, what makes a wire 500 ohms, and what
parts, besides the proper gauge wire, are needed?

Presently I have to keep this simple, since I can't
put anything up outside. If I move I could put up a "real" antenna
outdoors, but if I get the Icom now I'd need to use basically the
same setup I use for the portables.

Should I forget the Icom until I have a new house? Geez... then
I'd have a $100,000 shortwave radio.

If you want to e-mail a reply instead of post you can send it
to sanjaya_49 at yahoo dot com

Sanjaya wrote:

I have a 50 ft. random wire (22 AWG) I use for my portable
SW's. It is indoors and just runs around the ceiling of my listening room.
Connects to the receivers with a 1/8th inch mono plug.

Now I'm looking at the Icom IC-R75 and see it needs a 500 ohm
longwire.

Is there a way to convert my random wire to function properly
with the Icom. That is, can I make it a 500 ohm wire? Alternately,
can I take it down and replace it with another wire. Since I don't
know sh*t about antennas, what makes a wire 500 ohms, and what
parts, besides the proper gauge wire, are needed?

Presently I have to keep this simple, since I can't
put anything up outside. If I move I could put up a "real" antenna
outdoors, but if I get the Icom now I'd need to use basically the
same setup I use for the portables.

Should I forget the Icom until I have a new house? Geez... then
I'd have a $100,000 shortwave radio.

If you want to e-mail a reply instead of post you can send it
to sanjaya_49 at yahoo dot com

Just plug the wire into the 500 ohm input. By their very nature, random wires
have, generally, a high impedence.

dxAce

That's great Steve.

Thanks for the fast reply!!!

"dxAce" wrote...

Just plug the wire into the 500 ohm input. By their very nature, random wires
have, generally, a high impedence.

dxAce

"dxAce" wrote...
Just plug the wire into the 500 ohm input. By their very nature, random wires
have, generally, a high impedence.

dxAce



Anyone know how the Icom IC-R75 picks up MW?
My portables have a ferrite rod. Does the Icom use
the same wire for SW and MW? Or will I need another
antenna?

Sanjaya wrote:

"dxAce" wrote...
Just plug the wire into the 500 ohm input. By their very nature, random wires
have, generally, a high impedence.

dxAce



Anyone know how the Icom IC-R75 picks up MW?
My portables have a ferrite rod. Does the Icom use
the same wire for SW and MW? Or will I need another
antenna?


I own an R-75, and it's a dandy MW receiver, especially in SSB for
"difficult" stations. The MW antenna will be that same longwire, or any
other antenna configuration (loops work well for MW) that you hook up to
it.

Tony

Hi Sanjaya:

the Icom is all choked down for MW / Broadcast band;

BUT It still does reasonably well,

( I can pick up WWV in Wheeling West Virginia
(And hear " The Coal Mine report" at 10:00 P.M. )

- so it's OK on that front..

Dan / NYC


In article . net, "Sanjaya"
writes:

Subject: antenna question
From: "Sanjaya"
Date: Wed, 14 Jul 2004 11:54:36 GMT


"dxAce" wrote...
Just plug the wire into the 500 ohm input. By their very nature, random
wires
have, generally, a high impedence.

dxAce



Anyone know how the Icom IC-R75 picks up MW?
My portables have a ferrite rod. Does the Icom use
the same wire for SW and MW? Or will I need another
antenna?

"Tony Meloche" wrote...


Sanjaya wrote:

"dxAce" wrote...
Just plug the wire into the 500 ohm input. By their very nature, random wires
have, generally, a high impedence.

dxAce



Anyone know how the Icom IC-R75 picks up MW?
My portables have a ferrite rod. Does the Icom use
the same wire for SW and MW? Or will I need another
antenna?


I own an R-75, and it's a dandy MW receiver, especially in SSB for
"difficult" stations. The MW antenna will be that same longwire, or any
other antenna configuration (loops work well for MW) that you hook up to
it.

Tony

Thanks Tony. I want this radio baaaaaaad!

"Diverd4777" wrote...
Hi Sanjaya:

the Icom is all choked down for MW / Broadcast band;

BUT It still does reasonably well,

( I can pick up WWV in Wheeling West Virginia
(And hear " The Coal Mine report" at 10:00 P.M. )

- so it's OK on that front..

Dan / NYC


Thanks Dan. I'd be using it mostly for SW DX, but
seeing as my portables get the Yankees' flagship station
WCBS 880 in NYC, not to mention longer distances, I think
the Icom will fill the bill as well.

( I can pick up WWV in Wheeling West Virginia
(And hear " The Coal Mine report" at 10:00 P.M. )

Hey Dan, what's the name of that station and freq that does that coal mine
report?

tx

~^Monitoring The Spectrum^~
Hammarlund HQ129X /Heathkit Q Multiplier
Hammarlund HQ140X
Multiple GE P-780's(GREAT BCB Radios)
RCA Victor *Strato- World*
RCA Victor RJC77W-K(Walnut Grain)
1942 Zenith Wave Magnet 6G 601M
Cathedral/ Ross World Master/Rhapsody-MultiBand
DX100/*SUPER-DELUXE Mod- DRIVEN*394/*Modded*398/399/402
OMGS Transistor Eight/Realistic 12-1451
Henry Kloss Model One/Bell+HowellSW
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
Alpha Delta DX Sloper 57ft.
500ft. 12AWG. (non-terminated)
120ft. 12 AWG Long-Wire
2 Radio Shack Loop Antennas
Radio Shack Amplified Antenna
30X30 DiamondLoop(six section 830pf Cap)
* Diamond Loop mounted to Lazy Susan TurnTable*
*21/2X2ft.FiveSpoked~Penta-Loop~PancakeLoop*
~OptimusCTR-111Cassettte Recorder~
~Radio Shack 2Speed VOX#43-476~
~Ramsey Speech Scrambler~

GO BEARCATS wrote:

( I can pick up WWV in Wheeling West Virginia
(And hear " The Coal Mine report" at 10:00 P.M. )

Hey Dan, what's the name of that station and freq that does that coal mine
report?

I believe he meant the call letters to be WWVA, Wheeling, West Virginia. They
are on 1170.

dxAce