Re: Please Trim (was replacing antenna wiring) (Alfred)
Thanks for your response, Allen. Maybe Gmail collapses the digest for you, but neither Microsoft Outlook nor my Android phone have any feature like that. Outlook will let me select a message from the initial list, but this means that I have to jump back up to the top, then down to a message, then back up, and down, etc. It’s not much easier than scrolling through the blank lines.
For those who have not experienced the Digest format, I’ve included it below in case you would like to see the effects of untrimmed messages. (Check out message 3.5 for example; four (short) lines of text followed by more than 1200 lines of copied content. [And I certainly don’t mean to single out any individual participant on this thread; it’s just an example.])
I realize that this is not an issue for most List members, and I don’t want to make a big deal out of this. I just wanted to make a gentle reminder about trimming and how it helps some of us.
Thanks,
Alfred
From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com]
Sent: Monday, December 06, 2010 1:01 AM
To: Ca… [at] yahoogroups.com
Subject: [Cal_Boats] Digest Number 2645[3 Attachments]
<http://groups.yahoo.com/group/Cal_Boats;_ylc=X3oDMTJlbDJybDRvBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRzZWMDaGRyBHNsawNocGgEc3RpbWUDMTI5MTYxNTI2Ng--> Cal Sail List
Messages In This Digest (25 Messages)
1a.
Someone MUST be sailing From: ira reba
1b.
Re: Someone MUST be sailing From: DavidOwen
1c.
Re: Someone MUST be sailing From: Randall Alcorn
1d.
Re: Someone MUST be sailing From: Dena Mercer
1e.
Re: Someone MUST be sailing From: DavidOwen
1f.
Re: Someone MUST be sailing From: Allen Edwards
1g.
Re: Someone MUST be sailing (David) From: Randy Alcorn
2.
Please Trim (was replacing antenna wiring) From: Alfred Poor
3.1.
Re: Somebody help VHF range From: Michael D
3.2.
Re: Somebody help VHF range From: Allen Edwards
3.3.
Re: Somebody help VHF range From: Helen Horn
3.4.
Re: Somebody help VHF range From: Allen Edwards
3.5.
Re: Somebody help VHF range From: scott
3.6.
Re: Somebody help VHF range From: George Drifter
3.7.
Re: Somebody help VHF range From: Allen Edwards
3.8.
Re: Somebody help VHF range From: scott
4.
Re: Please Trim (was replacing antenna wiring) (Alfred) From: Allen Edwards
5.
Cal 29 4 Xmas From: Helen Horn
6.
Winter Vashon From: Fred Haas
7a.
Re: What is this line called From: Allen
8.
scott/vhf From: Helen Horn
9a.
allen/vhf From: Helen Horn
9b.
Re: allen/vhf From: Allen Edwards
10.1.
Re: replacing antenna wiring From: scott
10.2.
Re: replacing antenna wiring From: Allen Edwards
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Messages
1a.
<http://groups.yahoo.com/group/Cal_Boats/message/25598;_ylc=X3oDMTJzMTFwaGtkBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTU5OARzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Someone MUST be sailing
Posted by: "ira reba" <mailto:th… [at] yahoo.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing> th… [at] yahoo.com <http://profiles.yahoo.com/thekitchenguy02148> thekitchenguy02148
Sun Dec 5, 2010 5:51 am (PST)
Hello Group,
I'm escaping New England for a quick visit out west. I'll be in the San Diego
area (Cardiff) with free days on 12/9, 12/10, or 12/11. If you're going to be
sailing on any of those days, I'd appreciate an invite. Cruise, race, hanging
out and floating....doesn't matter. I'm experienced, good crew, and need a
sailing fix since my boat has been put to bed and hibernating for the winter.
Thanks,
Ira
Gloucester, MA
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1b.
<http://groups.yahoo.com/group/Cal_Boats/message/25603;_ylc=X3oDMTJzODFydHNnBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMwRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Someone MUST be sailing
Posted by: "DavidOwen" <mailto:wi… [at] mariposasailing.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing> wi… [at] mariposasailing.com <http://profiles.yahoo.com/dwilkieo> dwilkieo
Sun Dec 5, 2010 8:47 am (PST)
Snow bound persons are always welcome on Mariposa. San Diego is a bit
of a stretch for you, however. With traffic, it can take 5 or 6 hours
to get to Santa Barbara.
Barring unforseen problems with my engine install, I should be ready
to sail by the weekend.
Wilkie
On Dec 5, 2010, at 5:51 AM, ira reba wrote:
>
> Hello Group,
> I'm escaping New England for a quick visit out west. I'll be in
> the San Diego area (Cardiff) with free days on 12/9, 12/10, or
> 12/11. If you're going to be sailing on any of those days, I'd
> appreciate an invite. Cruise, race, hanging out and
> floating....doesn't matter. I'm experienced, good crew, and need a
> sailing fix since my boat has been put to bed and hibernating for
> the winter.
>
> Thanks,
> Ira
> Gloucester, MA
>
>
>
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1c.
<http://groups.yahoo.com/group/Cal_Boats/message/25604;_ylc=X3oDMTJzYXZhZm0zBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwNARzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Someone MUST be sailing
Posted by: "Randall Alcorn" <mailto:sa… [at] yahoo.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing> sa… [at] yahoo.com <http://profiles.yahoo.com/saylorran> saylorran
Sun Dec 5, 2010 9:07 am (PST)
Out Patient is racing today, the last race is the county and the TGIS series.
After this it will be whale watching until March.
Yesterday, we ended up in 2nd place after the wind shut down and left us bobbing at the harbor entrance. We finished flying the drifter. We ended up 1st in series. Wooo whoooo
Randy
-- Sent from my Palm Pixi
On Dec 5, 2010 8:47, DavidOwen < <mailto:wilkie%40mariposasailing.com> wi… [at] mariposasailing.com> wrote:
Snow bound persons are always welcome on Mariposa. San Diego is a bit of a stretch for you, however. With traffic, it can take 5 or 6 hours to get to Santa Barbara.
Barring unforseen problems with my engine install, I should be ready to sail by the weekend.
Wilkie
On Dec 5, 2010, at 5:51 AM, ira reba wrote:Hello Group,
I'm escaping New England for a quick visit out west. I'll be in the San Diego area (Cardiff) with free days on 12/9, 12/10, or 12/11. If you're going to be sailing on any of those days, I'd appreciate an invite. Cruise, race, hanging out and floating....doesn't matter. I'm experienced, good crew, and need a sailing fix since my boat has been put to bed and hibernating for the winter.
Thanks,
Ira
Gloucester, MA
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1d.
<http://groups.yahoo.com/group/Cal_Boats/message/25605;_ylc=X3oDMTJzcnRvdTgxBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwNQRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Someone MUST be sailing
Posted by: "Dena Mercer" <mailto:de… [at] sbcglobal.net?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing> de… [at] sbcglobal.net <http://profiles.yahoo.com/de… [at] sbcglobal.net> de… [at] sbcglobal.net
Sun Dec 5, 2010 9:39 am (PST)
Congratulations, Randy! You worked hard for this series win. Fluky winds
yesterday, huh! Sailed Pangea off shore yesterday for a bit. Wind was S .... no,
E ...no, ? Just kept changing. Worst of all, however, is when the wind shuts
down completely, as it did with you yesterday. Good race. Good luck with top
"Whis points".
Dena
From: Randall Alcorn < <mailto:saylorran%40yahoo.com> sa… [at] yahoo.com>
To: " <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com" < <mailto:cal_boats%40yahoogroups.com> ca… [at] yahoogroups.com>
Sent: Sun, December 5, 2010 9:07:12 AM
Subject: Re: [Cal_Boats] Someone MUST be sailing
Out Patient is racing today, the last race is the county and the TGIS series.
After this it will be whale watching until March.
Yesterday, we ended up in 2nd place after the wind shut down and left us bobbing
at the harbor entrance. We finished flying the drifter. We ended up 1st in
series. Wooo whoooo
Randy
-- Sent from my Palm Pixi
On Dec 5, 2010 8:47, DavidOwen < <mailto:wilkie%40mariposasailing.com> wi… [at] mariposasailing.com> wrote:
Snow bound persons are always welcome on Mariposa. San Diego is a bit of a
stretch for you, however. With traffic, it can take 5 or 6 hours to get to
Santa Barbara.
Barring unforseen problems with my engine install, I should be ready to sail by
the weekend.
Wilkie
On Dec 5, 2010, at 5:51 AM, ira reba wrote:
>
>Hello Group,
> I'm escaping New England for a quick visit out west. I'll be in the San Diego
>area (Cardiff) with free days on 12/9, 12/10, or 12/11. If you're going to be
>sailing on any of those days, I'd appreciate an invite. Cruise, race, hanging
>out and floating....doesn't matter. I'm experienced, good crew, and need a
>sailing fix since my boat has been put to bed and hibernating for the winter.
>
>Thanks,
>Ira
>Gloucester, MA
>
>
>
Back to top
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1e.
<http://groups.yahoo.com/group/Cal_Boats/message/25606;_ylc=X3oDMTJzazA3MmM0BF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwNgRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Someone MUST be sailing
Posted by: "DavidOwen" <mailto:wi… [at] mariposasailing.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing> wi… [at] mariposasailing.com <http://profiles.yahoo.com/dwilkieo> dwilkieo
Sun Dec 5, 2010 10:26 am (PST)
Hey Randy!
Congratulations on your series finish. I've been left bobbing off the
entrance to Ventura Harbor as well. Usually at about 4 AM or so....
LOL
Hope we can put together another Cal-Friendly Santa Cruz Island trip
or two this winter. Weather looks like it may not cooperate this
year, but it can be gorgeous out there after a little rain.
My new Beta 14 is going in this week. I'm taking my time and doing
everything by the book. Replaced all of the fuel and water lines and
added a strainer that Mariposa never had. Lots of fun.
Wity the engine compartment emtpy, it's always time to clean and
paint. I re-routed my fuel tank vent properly -- there was a dip in
it before that collected diesel and spewed it out when filling up at
the fuel dock. My almost new vetus water-lift wouldn't work with the
new engine so I had to fit a Vernalift back to starboard of the shaft
log. Not happy with the location and proximity to other parts that
I'll need to access from time to time, but really no other choice that
I could come up with that keeps the darned thing low enough.
Hope the holidays are kind to you. Let's keep in touch.
Wilkie
On Dec 5, 2010, at 9:07 AM, Randall Alcorn wrote:
> Out Patient is racing today, the last race is the county and the
> TGIS series.
>
> After this it will be whale watching until March.
>
> Yesterday, we ended up in 2nd place after the wind shut down and
> left us bobbing at the harbor entrance. We finished flying the
> drifter. We ended up 1st in series. Wooo whoooo
>
> Randy
>
>
>
> -- Sent from my Palm Pixi
>
> On Dec 5, 2010 8:47, DavidOwen < <mailto:wilkie%40mariposasailing.com> wi… [at] mariposasailing.com> wrote:
>
>
>
>
> Snow bound persons are always welcome on Mariposa. San Diego is a
> bit of a stretch for you, however. With traffic, it can take 5 or 6
> hours to get to Santa Barbara.
>
> Barring unforseen problems with my engine install, I should be ready
> to sail by the weekend.
>
> Wilkie
>
>
>
> On Dec 5, 2010, at 5:51 AM, ira reba wrote:
>
>>
>> Hello Group,
>> I'm escaping New England for a quick visit out west. I'll be in
>> the San Diego area (Cardiff) with free days on 12/9, 12/10, or
>> 12/11. If you're going to be sailing on any of those days, I'd
>> appreciate an invite. Cruise, race, hanging out and
>> floating....doesn't matter. I'm experienced, good crew, and need
>> a sailing fix since my boat has been put to bed and hibernating for
>> the winter.
>>
>> Thanks,
>> Ira
>> Gloucester, MA
>>
>>
>
>
>
>
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1f.
<http://groups.yahoo.com/group/Cal_Boats/message/25608;_ylc=X3oDMTJzZmdndDQzBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwOARzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Someone MUST be sailing
Posted by: "Allen Edwards" <mailto:al… [at] PaloAltoPhoto.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing> al… [at] PaloAltoPhoto.com <http://profiles.yahoo.com/xhpspd> xhpspd
Sun Dec 5, 2010 10:49 am (PST)
Reminds me of the last race of our season. We were very close to the finish
line in light winds and I wasn't sure if we had crossed. I used the radio
to ask the committee, which watches from the clubhouse through a telescope,
if we had finished. I will never forget the reply: "you have about one boat
length go and you are moving backwards." The lead boat, who we usually beat
boat for boat, finished in about 45 minutes. We finished an hour and a half
back for 4th place out of about 10 boats. It was one of our two toss outs
and we won the series as well.
Allen
On Sun, Dec 5, 2010 at 9:07 AM, Randall Alcorn < <mailto:saylorran%40yahoo.com> sa… [at] yahoo.com> wrote:
>
>
> Out Patient is racing today, the last race is the county and the TGIS
> series.
>
> After this it will be whale watching until March.
>
> Yesterday, we ended up in 2nd place after the wind shut down and left us
> bobbing at the harbor entrance. We finished flying the drifter. We ended up
> 1st in series. Wooo whoooo
>
> Randy
>
>
> -- Sent from my Palm Pixi
>
> ------------------------------
> On Dec 5, 2010 8:47, DavidOwen < <mailto:wilkie%40mariposasailing.com> wi… [at] mariposasailing.com> wrote:
>
>
>
>
> Snow bound persons are always welcome on Mariposa. San Diego is a bit of a
> stretch for you, however. With traffic, it can take 5 or 6 hours to get to
> Santa Barbara.
>
> Barring unforseen problems with my engine install, I should be ready to
> sail by the weekend.
>
> Wilkie
>
>
>
> On Dec 5, 2010, at 5:51 AM, ira reba wrote:
>
>
> Hello Group,
> I'm escaping New England for a quick visit out west. I'll be in the San
> Diego area (Cardiff) with free days on 12/9, 12/10, or 12/11. If you're
> going to be sailing on any of those days, I'd appreciate an invite. Cruise,
> race, hanging out and floating....doesn't matter. I'm experienced, good
> crew, and need a sailing fix since my boat has been put to bed and
> hibernating for the winter.
>
> Thanks,
> Ira
> Gloucester, MA
>
>
>
>
>
Back to top
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1g.
<http://groups.yahoo.com/group/Cal_Boats/message/25619;_ylc=X3oDMTJzOXNrcjloBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYxOQRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Someone MUST be sailing (David)
Posted by: "Randy Alcorn" <mailto:sa… [at] yahoo.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing%20%28David%29> sa… [at] yahoo.com <http://profiles.yahoo.com/saylorran> saylorran
Sun Dec 5, 2010 8:05 pm (PST)
Hi David,
I just looked at the results from Santa Barbara's Holiday Regatta, Angry
Hillbillies is in 3rd place. Do you know what they did today? I was 2 points
ahead of them in the channel.
I wish I would of sailed up there, today we lead the spin class against a Mull
30, Beneteau 36 1st and a Moore 24. Right at the finish, we hit a unmarked shoal
and went aground. Pictures I am sure to be posted on PCYC's website.
Randy
From: DavidOwen < <mailto:wilkie%40mariposasailing.com> wi… [at] mariposasailing.com>
To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com
Sent: Sun, December 5, 2010 10:26:31 AM
Subject: Re: [Cal_Boats] Someone MUST be sailing
Hey Randy!
Congratulations on your series finish. I've been left bobbing off the entrance
to Ventura Harbor as well. Usually at about 4 AM or so.... LOL
Hope we can put together another Cal-Friendly Santa Cruz Island trip or two this
winter. Weather looks like it may not cooperate this year, but it can be
gorgeous out there after a little rain.
My new Beta 14 is going in this week. I'm taking my time and doing everything
by the book. Replaced all of the fuel and water lines and added a strainer that
Mariposa never had. Lots of fun.
Wity the engine compartment emtpy, it's always time to clean and paint. I
re-routed my fuel tank vent properly -- there was a dip in it before that
collected diesel and spewed it out when filling up at the fuel dock. My almost
new vetus water-lift wouldn't work with the new engine so I had to fit a
Vernalift back to starboard of the shaft log. Not happy with the location and
proximity to other parts that I'll need to access from time to time, but really
no other choice that I could come up with that keeps the darned thing low
enough.
Hope the holidays are kind to you. Let's keep in touch.
Wilkie
On Dec 5, 2010, at 9:07 AM, Randall Alcorn wrote:
Out Patient is racing today, the last race is the county and the TGIS series.
>
>After this it will be whale watching until March.
>
>Yesterday, we ended up in 2nd place after the wind shut down and left us bobbing
>at the harbor entrance. We finished flying the drifter. We ended up 1st in
>series. Wooo whoooo
>
>Randy
>
>
>
>-- Sent from my Palm Pixi
>
On Dec 5, 2010 8:47, DavidOwen < <mailto:wilkie%40mariposasailing.com> wi… [at] mariposasailing.com> wrote:
>
>
>
>
>
>
>Snow bound persons are always welcome on Mariposa. San Diego is a bit of a
>stretch for you, however. With traffic, it can take 5 or 6 hours to get to
>Santa Barbara.
>
>
>Barring unforseen problems with my engine install, I should be ready to sail by
>the weekend.
>
>
>Wilkie
>
>
>
>
>
>
>On Dec 5, 2010, at 5:51 AM, ira reba wrote:
>
>
>>
>>Hello Group,
>> I'm escaping New England for a quick visit out west. I'll be in the San Diego
>>area (Cardiff) with free days on 12/9, 12/10, or 12/11. If you're going to be
>>sailing on any of those days, I'd appreciate an invite. Cruise, race, hanging
>>out and floating....doesn't matter. I'm experienced, good crew, and need a
>>sailing fix since my boat has been put to bed and hibernating for the winter.
>>
>>Thanks,
>>Ira
>>Gloucester, MA
>>
>>
>>
>
>
>
>
>
Back to top
<mailto:sa… [at] yahoo.com?Subject=Re%3A%20Someone%20MUST%20be%20sailing%20%28David%29> Reply to sender | <mailto:Ca… [at] yahoogroups.com?Subject=%20Re%3A%20Someone%20MUST%20be%20sailing%20%28David%29> Reply to group | <http://groups.yahoo.com/group/Cal_Boats/post;_ylc=X3oDMTJzbTFnbzZpBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYxOQRzZWMDZG1zZwRzbGsDcnBseQRzdGltZQMxMjkxNjE1MjY2?act=reply&messageNum=25619> Reply via web post
<http://groups.yahoo.com/group/Cal_Boats/message/25598;_ylc=X3oDMTM4ajRpODBsBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYxOQRzZWMDZG1zZwRzbGsDdnRwYwRzdGltZQMxMjkxNjE1MjY2BHRwY0lkAzI1NTk4> Messages in this topic (7)
2.
<http://groups.yahoo.com/group/Cal_Boats/message/25599;_ylc=X3oDMTJzazM2dDZtBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTU5OQRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Please Trim (was replacing antenna wiring)
Posted by: "Alfred Poor" <mailto:ap… [at] verizon.net?Subject=%20Re%3A%20Please%20Trim%20%28was%20replacing%20antenna%20wiring%29> ap… [at] verizon.net <http://profiles.yahoo.com/aepoor> aepoor
Sun Dec 5, 2010 6:16 am (PST)
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>
>
I have a small request. I read the Cal List message on a daily digest, and I
have to scroll through all the copies of the previous messages in a thread
to get to the next one. I can appreciate that having the prior messages
helps provide context for the response, and that's fine. Even so, you could
often trim away messages that are five or six exchanges older than the
current reply without losing context. And you certainly could get rid of
extraneous matter that does not contribute to the discussion. As a case in
point, I have pasted above some of the content that is being repeated in
every message in the "replace antenna wiring" thread. As you can see, it
does not convey much useful information.
I suspect that I'm not the only one who reads the messages in the daily
digest (if you don't, try it; you might like it), and I expect that all of
us who do would appreciate any efforts to increase the signal to noise ratio
in the List's messages. There's a lot of valuable information here; let's
just make sure it's easy for everyone to find.
Thanks,
Alfred Poor
1973 Tartan 34C #288 "Jambalaya"
Back to top
<mailto:ap… [at] verizon.net?Subject=Re%3A%20Please%20Trim%20%28was%20replacing%20antenna%20wiring%29> Reply to sender | <mailto:Ca… [at] yahoogroups.com?Subject=%20Re%3A%20Please%20Trim%20%28was%20replacing%20antenna%20wiring%29> Reply to group | <http://groups.yahoo.com/group/Cal_Boats/post;_ylc=X3oDMTJzbnRocGp0BF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTU5OQRzZWMDZG1zZwRzbGsDcnBseQRzdGltZQMxMjkxNjE1MjY2?act=reply&messageNum=25599> Reply via web post
<http://groups.yahoo.com/group/Cal_Boats/message/25599;_ylc=X3oDMTM4Y2x0MXY1BF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTU5OQRzZWMDZG1zZwRzbGsDdnRwYwRzdGltZQMxMjkxNjE1MjY2BHRwY0lkAzI1NTk5> Messages in this topic (1)
3.1.
<http://groups.yahoo.com/group/Cal_Boats/message/25600;_ylc=X3oDMTJzdjhtYmE3BF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMARzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Somebody help VHF range
Posted by: "Michael D" <mailto:md… [at] yahoo.com?Subject=%20Re%3A%20Somebody%20help%20VHF%20range> md… [at] yahoo.com <http://profiles.yahoo.com/mddfl> mddfl
Sun Dec 5, 2010 7:24 am (PST)
Lot's of good input on this subject. As for us, we talked with a friends boat
48 miles from us (according to the chart plotter) during our return crossing
from the Bahamas in July. We have a five year old Standard Horizon VHF, ran
RG-213 coax to the masthead connected to a 3 db. Shakespeare antenna. The skies
were clear, and the water was flat.
Back to top
<mailto:md… [at] yahoo.com?Subject=Re%3A%20Somebody%20help%20VHF%20range> Reply to sender | <mailto:Ca… [at] yahoogroups.com?Subject=%20Re%3A%20Somebody%20help%20VHF%20range> Reply to group | <http://groups.yahoo.com/group/Cal_Boats/post;_ylc=X3oDMTJzOWloaTJoBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMARzZWMDZG1zZwRzbGsDcnBseQRzdGltZQMxMjkxNjE1MjY2?act=reply&messageNum=25600> Reply via web post
<http://groups.yahoo.com/group/Cal_Boats/message/25569;_ylc=X3oDMTM4ZGlxOXFqBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMARzZWMDZG1zZwRzbGsDdnRwYwRzdGltZQMxMjkxNjE1MjY2BHRwY0lkAzI1NTY5> Messages in this topic (34)
3.2.
<http://groups.yahoo.com/group/Cal_Boats/message/25601;_ylc=X3oDMTJzbDk1ZXBhBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMQRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Somebody help VHF range
Posted by: "Allen Edwards" <mailto:al… [at] PaloAltoPhoto.com?Subject=%20Re%3A%20Somebody%20help%20VHF%20range> al… [at] PaloAltoPhoto.com <http://profiles.yahoo.com/xhpspd> xhpspd
Sun Dec 5, 2010 7:41 am (PST)
My understanding is that FM polarization is at 45 degrees as it needs to be
picked up by TV antennas (horizontal) and car antennas (vertical). The
orientation of the receive antenna should match the transmit antenna and
really has nothing to do with what kind of antenna it is. HAM's will take a
beam antenna (like a TV antanna) and turn it vertically for VHF for example
as VHF in the HAM bands is vertical.
Allen
On Sun, Dec 5, 2010 at 12:51 AM, Gerald Sobel < <mailto:sobel_solar%40yahoo.com> so… [at] yahoo.com> wrote:
>
>
> I have always had bad reception, loud static, on my FM radio whenever I'm
> in my kitchen. Tonight I was able to swivel it's whip, rotate it, and bend
> it to 45 degrees from horizontal, and now it gets the best reception ever.
> Can anyone explain that, since I thought VHF whip antenna were supposed to
> be vertical?
> Jerry
>
>
> --- On *Sat, 12/4/10, Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com>*wrote:
>
>
> From: Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com>
> Subject: Re: [Cal_Boats] Somebody help VHF range
> To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com
> Date: Saturday, December 4, 2010, 8:38 PM
>
>
>
>
> I looked at the old thread again and a post by Timm might explain why links
> that say the range is line of site may not be taken as authoritative. As
> they say, theory is a way of predicting reality but reality always trumps
> theory.
>
> "I can receive the Coast Guard on VHF up to 200 and more miles, and NOAA
> weather out about 75 miles (spotty). Returning from Newport Oregon to
> Portland Oregon, I was able to contact the Coast Guard that we were arriving
> late and to notify our shore crew, we were 30-40 miles offshore, unknown
> distance to the responding Coast guard station (either Newport +50 miles or
> Astoria +80 miles). Ship to ship while not measured is in the "horizon"
> range."
>
> Allen
>
> On Sat, Dec 4, 2010 at 4:32 PM, scott < <mailto:sscot12%40yahoo.com> ss… [at] yahoo.com< <http://mc/compose?to=ss… [at] yahoo.com> http://mc/compose?to=ss… [at] yahoo.com>
> > wrote:
>
>
>
> And my links do not count
>
> Scott
>
>
> --- On Sat, 12/4/10, Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com< <http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com> http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com>>
> wrote:
>
> > From: Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com< <http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com> http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com>
> >
> > Subject: Re: [Cal_Boats] Somebody help VHF range
>
> > To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com< <http://mc/compose?to=Cal_Boats%40yahoogroups.com> http://mc/compose?to=Cal_Boats%40yahoogroups.com>
> > Date: Saturday, December 4, 2010, 4:21 PM
>
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Any credible source would need to talk about the
> > antenna height for both antennas and also state that it is
> > talking about range over water. A simple formula such as
> > the one in wikipedia, "distance in
> > miles = where Af is
>
> > the height of the antenna in feet " is
> > not credible because it does not consider either of these
> > factors as making a difference. It probably works for two
> > stations with the same antenna height over land. The most
> > credible source of such an analysis is the AREPS program.
> > I have not downloaded it or run it but am assuming that Al
> > Waschka did and that his analysis is correct.
> >
> >
> > The
> > conclusion he came to was that you get a little more range
> > by being on top of the mast than on the stern. I will note
> > that if you have a 1/4 wave antenna, you would probably get
> > greater range having it stern mounted than mast head mounted
> > as the pattern would be terrible with an 18 inch whip
> > masthead mounted because of the long ground (mast) below the
> > antenna which would point almost all the radiation
> > virtually straight up.
> >
> >
> > I am
> > not an antenna expert. There are actually very few of
> > these in the world. I am however an Extra class HAM, hold an
> > MS-EE and worked in RF and Microwave for many years. I
> > have built antennas from scratch. I use a VSWR meter to
> > check what I have done and they seem to work just fine.
> > The only program I have used is 4nec2 which will
> > calculate the impedance and pattern for any antenna. I
> > used that to design my stern mounted antenna.
> >
> >
> > Allen
> >
> >
> >
> > On Sat, Dec 4, 2010 at 1:43 PM, scott < <mailto:sscot12%40yahoo.com> ss… [at] yahoo.com< <http://mc/compose?to=sscot12%40yahoo.com> http://mc/compose?to=sscot12%40yahoo.com>
> >
> > wrote:
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > <http://www.catfleet21.org/rigging/June.htm> http://www.catfleet21.org/rigging/June.htm
> >
> >
> >
> >
> > 40mi on stern rail well then all of us have been
> > mislead about
> > VHF 150-165mhz radio signal range
> >
> > I beg for some expert to chime in like Gordon
> > West
> >
> > Im the antenna data sheets.
> >
> >
> >
> > --- On Fri, 12/3/10, Allen Edwards
> > < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com< <http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com> http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com>>
> wrote:
> >
> >
> > From: Allen Edwards
> > < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com< <http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com> http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com>
> >
> > Subject: Re: [Cal_Boats] replacing antenna wiring
> > To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com< <http://mc/compose?to=Cal_Boats%40yahoogroups.com> http://mc/compose?to=Cal_Boats%40yahoogroups.com>
> >
> >
> > Date: Friday, December 3, 2010, 8:13 PM
> >
> >
> >
> >
> > I found the old post from a year ago. It comes from
> > Al Waschka. I copied it below. Note that with a 3dB
> > antenna on the rail, not the masthead, the range would be
> > 44.4 miles. Not, the CG is going to have a better antenna
> > than that so the range would be more.
> >
> >
> > Allen
> >
> >
> >
> >
> >
> > AREPS is a well-respected tool generated by/for the
> > Navy for predicting radio communications range, particularly
> > at VHF/UHF and over water. I modeled a path with one end at
> > either 10 feet above the water (rail-mount) or at 50 feet
> > (masthead), and calculated the range to a receiving antenna
> > at 10 feet, 50 feet, or 150 feet (USCG base). I did this for
> > 25 watts, using the specified receive sensitivity for an
> > Icom M304 (0.22uV). I assumed 3 dB coax loss for 50 and 150
> > feet (better quality coax on the USCG tower) 1 dB loss for
> > the rail mount, and 3 dB gain antennas on both ends. The
> > results were not what I expected:
> >
> >
> >
> > Antenna 1 = 10’
> > Power = 25W
> > Range to 10’ receiver – 29.8 miles
> > Range to 50’ receiver – 33.1 miles
> > Range to 150’ receiver – 44.4 miles
> >
> > Antenna 1 = 50’
> > Power = 25W
> > Range to 10’ receiver – 31.6 miles
> > Range to 50’ receiver – 37.3 miles
> > Range to 150’ receiver – 48.7 miles
> >
> > The improvement of masthead mounting is way less than
> > I expected. My current antenna is a masthead-mounted ½
> > wave, but given this data, I’m not sure I’d go to the
> > trouble for a new installation.
> >
> >
> >
> >
> >
> > On Fri, Dec 3, 2010 at 6:20 PM, scott < <mailto:sscot12%40yahoo.com> ss… [at] yahoo.com< <http://mc/compose?to=sscot12%40yahoo.com> http://mc/compose?to=sscot12%40yahoo.com>
> >
> > wrote:
> >
> >
> >
> >
> >
> >
> > <http://en.wikipedia.org/wiki/VHF> http://en.wikipedia.org/wiki/VHF
> >
> >
> >
> >
> > --- On Fri, 12/3/10, Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com< <http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com> http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com>
> >
> > wrote:
> >
> >
> >
> > > From: Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com< <http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com> http://mc/compose?to=allen.edwards%40PaloAltoPhoto.com>
> >
> > > Subject: Re: [Cal_Boats] replacing antenna wiring
> >
> >
> > > To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com< <http://mc/compose?to=Cal_Boats%40yahoogroups.com> http://mc/compose?to=Cal_Boats%40yahoogroups.com>
> > > Date: Friday, December 3, 2010, 2:22 PM
> > >
> > >
> >
> >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > The VSWR of your antenna will be so much higher
> > > than the connector that there is no reason to worry
> > about
> > > the connector if it makes it easier on your
> >
> >
> > > installation.
> > > An even easier solution is to mount the antanna
> > > on the stern pulpit. There was a thread on this some
> > time
> > > ago and the conclusion was that range goes from
> > something
> > > like 43 miles to 40 miles by mounting the antenna on
> > the
> >
> >
> > > stern instead of on top of the mast. I don't
> > remember
> > > the exact numbers. Also, if you mount on top of the
> > mast
> > > make sure you have an antenna that is about 3 feet
> > long as
> > > if you have one 18 inches, you will only be able to
> > talk to
> >
> >
> > > the moon. Actually, you can probably reach the race
> > > committee but you won't get 40 miles out of a 1/4
> > wave
> > > antenna on
> > top of the mast. You need a 1/2 wave one.
> > >
> > >
> > > Allen
> > >
> > > On Fri, Dec 3, 2010
> > > at 2:00 PM, Chris < <mailto:ccampbell%40lsnm.org> cc… [at] lsnm.org< <http://mc/compose?to=ccampbell%40lsnm.org> http://mc/compose?to=ccampbell%40lsnm.org>
> >
> >
> >
> > > wrote:
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > On 12/3/2010 11:54 AM, Adam Thorp wrote:
> > >
> > >
> > >
> > >
> > > Greetings,
> > >
> > >
> > >
> >
> >
> > > I'm going to be rewiring the antenna
> > > on my cal28 this
> > > weekend and am looking for any advice.
> > >
> > >
> > >
> > >
> > >
> > >
> > > I read Allen's
> > advice and will disagree slightly.
> > >
> > >
> > >
> > > On my other boat, I installed a bulkhead feed-through
> > > just like the
> > > one Allen showed. I did that because the mast gets
> > > unstepped and
> >
> >
> > > stepped again each year when the boat is hauled in
> > the
> > > fall and
> > > launched in the spring. It'sa more convenient
> > to
> > > just unscrew a
> > > PL-259 fitting. However, the arrangement requires
> > two
> >
> >
> > > connectors
> > > plus the feed-through, and my understanding is that
> > any
> > > disruptions
> > > in the coax will likely make the standing-wave ratio
> > > (SWR) worse. It
> > > has to do with the transmitted wave bouncing back
> >
> >
> > > instead of being
> > > radiated off the antenna. This diminishes your
> > > transmitted power.
> > > On my boat, I opted for convenience and not for
> > maximum
> > > radiation.
> > > I don't have an SWR meter that will
> > measure at VHF
> > > frequencies so I
> > > don't really know how much effect the connector
> > > arrangement has.
> > > But be aware that, at least in the abstract,
> > you're
> > > better off with
> > > no discontinuities in your coax. Also be aware that
> > I
> >
> >
> > > disregarded
> > > my own warning.
> > >
> > >
> > >
> > > One way to avoid that would be to make a little
> > > walking-cane-shaped
> > > deck fitting, basically the bottom half of a sink
> > drain
> > > trap. Your
> >
> >
> > > coax would come down from the mast, turn upward into
> > > the fitting (to
> > > make a drip loop), then turn down inside the fitting
> > > through the
> > > deck. You could add some sealer, but the
> > > fitting's mouth would face
> >
> >
> > > downward so water would not be inclined to enter
> > unless
> > > under
> > > pressure.
> > >
> > >
> > >
> > > By the way, the feed-through device is long enough
> > to
> > > allow you to
> > > add a little wooden donut inside, under it. My
> > > boat's deck is not
> > > cored there, and is relatively thin, so I made the
> > > donut to make the
> > > mounting more substantial. Donut is varnished &
> >
> >
> > > looks spiffy.
> > >
> > >
> > >
> > > Chris Campbell
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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<mailto:al… [at] PaloAltoPhoto.com?Subject=Re%3A%20Somebody%20help%20VHF%20range> Reply to sender | <mailto:Ca… [at] yahoogroups.com?Subject=%20Re%3A%20Somebody%20help%20VHF%20range> Reply to group | <http://groups.yahoo.com/group/Cal_Boats/post;_ylc=X3oDMTJzcTNxOWtsBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMQRzZWMDZG1zZwRzbGsDcnBseQRzdGltZQMxMjkxNjE1MjY2?act=reply&messageNum=25601> Reply via web post
<http://groups.yahoo.com/group/Cal_Boats/message/25569;_ylc=X3oDMTM4c2xiNzAzBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwMQRzZWMDZG1zZwRzbGsDdnRwYwRzdGltZQMxMjkxNjE1MjY2BHRwY0lkAzI1NTY5> Messages in this topic (34)
3.3.
<http://groups.yahoo.com/group/Cal_Boats/message/25609;_ylc=X3oDMTJzbnFnNjEwBF9TAzk3MzU5NzE1BGdycElkAzE2NDg1Njk1BGdycHNwSWQDMTcwNTA2NTc5MgRtc2dJZAMyNTYwOQRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMjkxNjE1MjY2> Re: Somebody help VHF range
Posted by: "Helen Horn" <mailto:he… [at] sbcglobal.net?Subject=%20Re%3A%20Somebody%20help%20VHF%20range> he… [at] sbcglobal.net <http://profiles.yahoo.com/he… [at] sbcglobal.net> he… [at] sbcglobal.net
Sun Dec 5, 2010 11:04 am (PST)
sounds like my tv antenna ,there must be obstacles in your walls or ceiling, I
don't do cable and my antenna arrangement indoors uses some funny locations and
angles depending upon different hours of the day/night even. On our boat, after
reading the antenna postings, we had installed a masthead 18" whip (cutting down
on the "weight" and we thought more efficient) to replace our stern rail mounted
4' whip. On the cleanup and plugging of the old location , we discovered that
all the reception we had, not too awful by the way, was from the cable itself as
it was just sitting there, the wires were separated and corroded on the tips. So
we thought wow, are we going to be happy. The reception is no better and of
course we have all that cable up through the mast. I'm going back to the rail
with it and really appreciate the logic of having it in case of dismasting, firm
believer in hoping that being prepared holds off the "whatever". It probably
disturbs some of the birds in addition to my snakes painted on my spreaders. Do
you really think the weight of the cable and antenna are significant on a 29 or
36? Helen
From: Gerald Sobel < <mailto:sobel_solar%40yahoo.com> so… [at] yahoo.com>
To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com
Sent: Sun, December 5, 2010 12:51:19 AM
Subject: Re: [Cal_Boats] Somebody help VHF range
I have always had bad reception, loud static, on my FM radio whenever I'm in my
kitchen. Tonight I was able to swivel it's whip, rotate it, and bend it to 45
degrees from horizontal, and now it gets the best reception ever. Can anyone
explain that, since I thought VHF whip antenna were supposed to be vertical?
Jerry
--- On Sat, 12/4/10, Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com> wrote:
>From: Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com>
>Subject: Re: [Cal_Boats] Somebody help VHF range
>To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com
>Date: Saturday, December 4, 2010, 8:38 PM
>
>
>
>I looked at the old thread again and a post by Timm might explain why links that
>say the range is line of site may not be taken as authoritative. As they say,
>theory is a way of predicting reality but reality always trumps theory.
>
>
>"I can receive the Coast Guard on VHF up to 200 and more miles, and NOAA weather
>out about 75 miles (spotty). Returning from Newport Oregon to Portland Oregon, I
>was able to contact the Coast Guard that we were arriving late and to notify our
>shore crew, we were 30-40 miles offshore, unknown distance to the responding
>Coast guard station (either Newport +50 miles or Astoria +80 miles). Ship to
>ship while not measured is in the "horizon" range."
>
>
>Allen
>
>
>On Sat, Dec 4, 2010 at 4:32 PM, scott < <mailto:sscot12%40yahoo.com> ss… [at] yahoo.com> wrote:
>
>
>>And my links do not count
>>
>>Scott
>>
>>
>>--- On Sat, 12/4/10, Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com> wrote:
>>
>>> From: Allen Edwards < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com>
>>
> Subject: Re: [Cal_Boats] Somebody help VHF range
>>
>>> To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com
>>
> Date: Saturday, December 4, 2010, 4:21 PM
>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Any credible source would need to talk about the
>>> antenna height for both antennas and also state that it is
>>> talking about range over water. A simple formula such as
>>> the one in wikipedia, "distance in
>>
> miles = where Af is
>>
>>> the height of the antenna in feet " is
>>> not credible because it does not consider either of these
>>> factors as making a difference. It probably works for two
>>> stations with the same antenna height over land. The most
>>> credible source of such an analysis is the AREPS program.
>>> I have not downloaded it or run it but am assuming that Al
>>> Waschka did and that his analysis is correct.
>>>
>>>
>>> The
>>> conclusion he came to was that you get a little more range
>>> by being on top of the mast than on the stern. I will note
>>> that if you have a 1/4 wave antenna, you would probably get
>>> greater range having it stern mounted than mast head mounted
>>> as the pattern would be terrible with an 18 inch whip
>>> masthead mounted because of the long ground (mast) below the
>>> antenna which would point almost all the radiation
>>> virtually straight up.
>>>
>>>
>>> I am
>>> not an antenna expert. There are actually very few of
>>> these in the world. I am however an Extra class HAM, hold an
>>> MS-EE and worked in RF and Microwave for many years. I
>>> have built antennas from scratch. I use a VSWR meter to
>>> check what I have done and they seem to work just fine.
>>> The only program I have used is 4nec2 which will
>>> calculate the impedance and pattern for any antenna. I
>>> used that to design my stern mounted antenna.
>>>
>>>
>>> Allen
>>>
>>>
>>>
>>> On Sat, Dec 4, 2010 at 1:43 PM, scott < <mailto:sscot12%40yahoo.com> ss… [at] yahoo.com>
>>> wrote:
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> <http://www.catfleet21.org/rigging/June.htm> http://www.catfleet21.org/rigging/June.htm
>>>
>>>
>>>
>>>
>>> 40mi on stern rail well then all of us have been
>>> mislead about
>>> VHF 150-165mhz radio signal range
>>>
>>> I beg for some expert to chime in like Gordon
>>> West
>>>
>>> Im the antenna data sheets.
>>>
>>>
>>>
>>> --- On Fri, 12/3/10, Allen Edwards
>>> < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com> wrote:
>>>
>>>
>>> From: Allen Edwards
>>> < <mailto:allen.edwards%40PaloAltoPhoto.com> al… [at] PaloAltoPhoto.com>
>>> Subject: Re: [Cal_Boats] replacing antenna wiring
>>> To: <mailto:Cal_Boats%40yahoogroups.com> Ca… [at] yahoogroups.com
>>>
>>>
>>> Date: Friday, December 3, 2010, 8:13 PM
>>>
>>>
>>>
>>>
>>> I found the old post from a year ago. It comes from
>>> Al Waschka. I copied it below. Note that with a 3dB
>>> antenna on the rail, not the masthead, the range would be
>>> 44.4 miles. Not, the CG is going to have a better antenna
>>> than that so the range would be more.
>>>
>>>
>>> Allen
>>>
>>>
>>>
>>>
>>>
>>> AREPS is a well-respected tool generated by/for the
>>> Navy for predicting radio communications range, particularly
>>> at VHF/UHF and over water. I modeled a path with one end at
>>> either 10 feet above the water (rail-mount) or at 50 feet
>>> (masthead), and calculated the range to a receiving antenna
>>> at 10 feet, 50 feet, or 150 feet (USCG base). I did this for
>>> 25 watts, using the specified receive sensitivity for an
>>> Icom M304 (0.22uV). I assumed 3 dB coax loss for 50 and 150
>>> feet (better quality coax on the USCG tower) 1 dB loss for
>>> the rail mount, and 3 dB gain antennas on both ends. The
>>> results were not what I expected:
>>>
>>>
>>>
>>> Antenna 1 = 10’
>>> Power = 25W
>>> Range to 10’ receiver – 29.8 miles
>>> Range to 50’ receiver – 33.1 miles
>>> Range to 150’ receiver – 44.4 miles
>>>
>>> Antenna 1 = 50’
>>> Power = 25W
>>> Range to 10’ receiver – 31.6 miles
>>> Range to 50’ receiver – 37.3 miles
>>> Range to 150’ receiver – 48.7 miles
>>>
>>> The improvement of masthead mounting is way less than
>>> I expected. My current antenna is a masthead-mounted