Cobra 148GTL for 10 METER
 

I have an original Cobra 148GTL CB Radio. I know that i can modify it
to operate in the 10Meter band by switching the crystal to a
11.6908MHz crystal.

is anybody familiar with this mod? If so, how do i determine what
frequency each channel will be at? will i need to purchase a freq.
countert o determine what freq. will go with what channel?

Also, will my 102: whip work with 10M, or rather will it give me a
close enough SWR to suffice, or will i need to purchase a new antenna?

Any information or assistance would be greatly appreciated.

Eddie

Cobra 148GTL for 10 METER
 

Not sure of the mixing scheme of the cobra, so I won't comment on that
part of your question. Since the 10M band is higher in frequency than
CB, shortening the 102" whip experimentally should get your SWR
down...but you will need an SWR bridge to check that (or an antenna
analyzer such as the MFJ 259 or similar).

Scott


john james wrote:

I have an original Cobra 148GTL CB Radio. I know that i can modify it
to operate in the 10Meter band by switching the crystal to a
11.6908MHz crystal.

is anybody familiar with this mod? If so, how do i determine what
frequency each channel will be at? will i need to purchase a freq.
countert o determine what freq. will go with what channel?

Also, will my 102: whip work with 10M, or rather will it give me a
close enough SWR to suffice, or will i need to purchase a new antenna?

Any information or assistance would be greatly appreciated.

Eddie

Cobra 148GTL for 10 METER
 

Hmm.. ok .. *IF* I remeber correctly, CB SWR meters are good for up to
30MHZ. so I can use the one I already own, correct?

Eddie


On Thu, 08 Feb 2007 22:58:06 +0000, Scott
wrote:

Not sure of the mixing scheme of the cobra, so I won't comment on that
part of your question. Since the 10M band is higher in frequency than
CB, shortening the 102" whip experimentally should get your SWR
down...but you will need an SWR bridge to check that (or an antenna
analyzer such as the MFJ 259 or similar).

Scott


john james wrote:

I have an original Cobra 148GTL CB Radio. I know that i can modify it
to operate in the 10Meter band by switching the crystal to a
11.6908MHz crystal.

is anybody familiar with this mod? If so, how do i determine what
frequency each channel will be at? will i need to purchase a freq.
countert o determine what freq. will go with what channel?

Also, will my 102: whip work with 10M, or rather will it give me a
close enough SWR to suffice, or will i need to purchase a new antenna?

Any information or assistance would be greatly appreciated.

Eddie

Cobra 148GTL for 10 METER
 

Should work fine

john james wrote:

Hmm.. ok .. *IF* I remeber correctly, CB SWR meters are good for up to
30MHZ. so I can use the one I already own, correct?

Eddie


On Thu, 08 Feb 2007 22:58:06 +0000, Scott
wrote:



Not sure of the mixing scheme of the cobra, so I won't comment on that
part of your question. Since the 10M band is higher in frequency than
CB, shortening the 102" whip experimentally should get your SWR
down...but you will need an SWR bridge to check that (or an antenna
analyzer such as the MFJ 259 or similar).

Scott


john james wrote:



I have an original Cobra 148GTL CB Radio. I know that i can modify it
to operate in the 10Meter band by switching the crystal to a
11.6908MHz crystal.

is anybody familiar with this mod? If so, how do i determine what
frequency each channel will be at? will i need to purchase a freq.
countert o determine what freq. will go with what channel?

Also, will my 102: whip work with 10M, or rather will it give me a
close enough SWR to suffice, or will i need to purchase a new antenna?

Any information or assistance would be greatly appreciated.

Eddie









--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P

Cobra 148GTL for 10 METER
 

Yes, no problem at all!

Scott


john james wrote:

Hmm.. ok .. *IF* I remeber correctly, CB SWR meters are good for up to
30MHZ. so I can use the one I already own, correct?

Eddie


On Thu, 08 Feb 2007 22:58:06 +0000, Scott
wrote:


Not sure of the mixing scheme of the cobra, so I won't comment on that
part of your question. Since the 10M band is higher in frequency than
CB, shortening the 102" whip experimentally should get your SWR
down...but you will need an SWR bridge to check that (or an antenna
analyzer such as the MFJ 259 or similar).

Scott


john james wrote:


I have an original Cobra 148GTL CB Radio. I know that i can modify it
to operate in the 10Meter band by switching the crystal to a
11.6908MHz crystal.

is anybody familiar with this mod? If so, how do i determine what
frequency each channel will be at? will i need to purchase a freq.
countert o determine what freq. will go with what channel?

Also, will my 102: whip work with 10M, or rather will it give me a
close enough SWR to suffice, or will i need to purchase a new antenna?

Any information or assistance would be greatly appreciated.

Eddie