Skip

Don't forget, the Icom 802 is also going to want an additional receive-only
antenna for the DSC receiver portion. It can't use the main antenna for
this. I'm using the backstay for the 802 HF transceiver, a 23 foot whip on
one side for the DSC receiver in the 802, and another 23 foot whip on the
other side for a separate HF receiver (R-71A). The antenna for the R-71 is
also shared with the stereo radio.

The backstay uses an AT-140 tuner. The receive-only antennas don't have
tuners.

Rusty

"Skip Gundlach" wrote in message
oups.com...
Boy, I hate web-based posting. I replied to this and the computer ate
it, of course, not saving it anywhere for me...

Thanks for the info on non-HF, whip, antenna placement. Our nav VHF is
mast top, our cockpit VHF is on the arch, as are other antennas. We'll
not be using the backstay for an antenna for a variety of reasons,
time, money and security in the potential dismasting among them.

As further background, we have full rails, with the gates combined
electrically with brass straps belowdecks, attached to the arch, the
pushpit and pulpit. We have about 110 lineal feet of 1" SS tube rail,
unless you count the inner rails, plus the arch. In addition we have
the standard 4" copper strapping leading to a sintered bronze Guest
plane below the boat, and also connected to a 3x5' plate under the
workbench top. I think we have a reasonably good ground.

We have an SGC-230 tuner within 2 cable-feet of the whip antenna. We
expect to have an Icom I-802 HF for our HF comms.

Given that we'll have a whip antenna, is centerline, next to the chain
plate, as good as, better or worse than, or something else when
compared to near the side as it was before (but before the arch was
installed)?

Thanks.

L8R

Skip, refitting as fast as I can

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2 - The vessel as Tehamana, as we bought her

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails.
Explore.
Dream. Discover." - Mark Twain

"Rusty" wrote in message
...
Skip

Don't forget, the Icom 802 is also going to want an additional
receive-only antenna for the DSC receiver portion. It can't use the main
antenna for this. I'm using the backstay for the 802 HF transceiver, a 23
foot whip on one side for the DSC receiver in the 802, and another 23 foot
whip on the other side for a separate HF receiver (R-71A). The antenna for
the R-71 is also shared with the stereo radio.

The backstay uses an AT-140 tuner. The receive-only antennas don't have
tuners.

Rusty



Sorry, I missed this one on the boat, relying on the web-based info and the
digest versions sent to me.

I'm not familiar with the 802 at all, yet, so didn't know of the separate
DSC antenna receive function. The inference is, then, that my similarly
equipped VHFs will need some separate antenna? I'd thought they'd connect
to a GPS...

Thanks for any insights - and the renaming will try to recapture the thread
to placement rather than esoteric discussions of antenna frequencies and
unrelated theory. Not that I'm not enjoying them - but it's not what I
asked, and I have very limited time to sort, witness missing this post.

L8R

Skip, cleaning up in prep for surgery and being off-line for several weeks

--
Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2 - The vessel as Tehamana, as we bought her

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain

"Skip Gundlach on wifi"
skipgundlach.sez.remove.this.part@earthlink.(fish catcher)net wrote in
:

I'm not familiar with the 802 at all, yet, so didn't know of the
separate DSC antenna receive function.

I've got Lionheart's DSC antenna hooked to the handrail right over the
transceiver's location at the chart table. Seems to work fine.

--
Larry

In article ,
"Skip Gundlach on wifi"
skipgundlach.sez.remove.this.part@earthlink.(fish catcher)net wrote:

The inference is, then, that my similarly
equipped VHFs will need some separate antenna? I'd thought they'd connect
to a GPS...

Skip, You inference is likely wrong as most Vhf Radio's with DSC either
use a receive scan function, or a internal, but seperate, Vhf Receiver
to monitor the DSC Vhf Frequency. (Marine Ch 70) While it is impractical
to use that kind of scheme at MF/HF Frequencies because the autotuner
would be set for the last band segment transmitted on, and attenuate the
DSC signals for all the bands except the autotuned band. It is therefor
prefered, that any MF/HF Marine Radio Installation, have a seperate
Receive Only antenna for the DSC Watch Receiver.

Thus the 802's Watch Receiver Antenna requirment.

Bruce in alaska
--
add a 2 before @