Marine 2m Antenna wanted
 

Hi Merlin

I was actually curious about the meaning of the "DC" they use to define
the power rating of the 2 meter hamstick.

Jerry

Hi Jerry.

I did not catch the DC part when I looked at the page.

You can always e-mail them and ask, they are pretty quick about returning
e-mails (unless they are at a ham fest somewhere) and they ship fast.

Hi Merlin

I am mainly interested in expanding my understanding of antennas and
terminology. My first thought was that there is a way of measuring power
that I didnt know about, but everyone else does understand. Since you
arent familiar with the meaning of DC when associated with 144 MHz antenna
power handling, I am comfortable not knowing either.

Thanks
Jerry

Marine 2m Antenna wanted
 

Jerry Martes wrote:

I am mainly interested in expanding my understanding of antennas and
terminology. My first thought was that there is a way of measuring power
that I didnt know about, but everyone else does understand. Since you
arent familiar with the meaning of DC when associated with 144 MHz antenna
power handling, I am comfortable not knowing either.

Thanks
Jerry



Jerry:

When dealing with xmitters and antennas, it is good to know about ac
watt meters--and, specifically, know enough to get one
responsive/accurate to the frequencies you have in interest.

DC has little to do with xmitters, and, even those of VLF capabilities
.... but then, you should get others opinions.

P.S. Beware the "cardboard gurus!"

Regards,
JS

Marine 2m Antenna wanted
 

Hi Larry

Just a quick thought.

Since a moved from the marine band to 2m is down in freq you may get
away with something you can slip over the marine whip to increase C to
ground. I am thinking something loose here, not so much a metal to metal
connection. Since there will be a greater effect at the top end maybe a
piece of metal pipe just sitting close to the top, maybe buffered with a
grommet or something to hold it in place.

Might be worth an experimenting if the 2m VSWR on the marine whip is
beyond bounds!

Of course if you have the money to throw at it, mounting a high gain
vertical on a steadicam mount might solve the movement induced pattern
problems! grin

Cheers Bob VK2YQA

Larry wrote:

I'll follow the link that Bob gave and see what the guy is using. I
suppose I could disconnect the marine VHF antenna and hook it up to the
ICOM and a SWR meter and see what I get. I guess I should give that a
try. I don't need to do anything to try that.

I know that I'd lose some of whatever gain those things claim, as the
antenna would seldom be completely vertical, but I've never found that
to be all that significant anyway. I just need to have an antenna which
does not rely on a ground plane. Since I'm only fishing on lakes, I
don't think that is all that significant anyway. I've found that marine
VHF gets almost nowhere (nobody around) so I think I'd do better with 2
meters.

Marine 2m Antenna wanted
 

Bob Bob wrote:
Hi Larry

Just a quick thought.

Since a moved from the marine band to 2m is down in freq you may get
away with something you can slip over the marine whip to increase C to
ground. I am thinking something loose here, not so much a metal to metal
connection. Since there will be a greater effect at the top end maybe a
piece of metal pipe just sitting close to the top, maybe buffered with a
grommet or something to hold it in place.

Might be worth an experimenting if the 2m VSWR on the marine whip is
beyond bounds!

Of course if you have the money to throw at it, mounting a high gain
vertical on a steadicam mount might solve the movement induced pattern
problems! grin

Cheers Bob VK2YQA

Hi Bob,

Well, after a bit of experimenting (and remember I'm almost always on an
inland lake) I decided to go with the Morad antenna. I've ordered one
and a mount - it will probably be here next week. I'm not too concerned
with pitch and yaw - it will be close enough to vertical!

Yes, I could detune a marine band antenna - for that matter, the SWR is
probably close enough, but this should work and there's some genuine
gain, but not so much I have to worry about keeping it vertical.

Actually, I'm lazy!

73,
--

Larry W1HJF
rapp at lmr dot com