Re: [BVARC] DX map

2023-03-12 Thread David Mehl via BVARC 
Philiope
Could you do me a favor and remove my email from your mailing lists? I am no 
longer a member and have moved away from Houston area.

Thanks

David Mehl
AI5DK
dcm...@live.com

David Mehl - Tyler TX USA

From: BVARC  on behalf of K5BOU via BVARC 

Sent: Sunday, March 12, 2023 1:29:37 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' 
Cc: K5BOU 
Subject: [BVARC] DX map


Very cool propagation map.

HF Propagation Map 
(dxview.org)



[cid:image001.png@01D954E6.B0C370F0]

K5BOU-PhilippeBoucaumont

Houston|Texas|USA|

https://mccrarymeadowsweather.com/

[cid:image002.png@01D954E6.B0C370F0][cid:image003.png@01D954E6.B0C370F0][cid:image004.jpg@01D954E6.B0C370F0][cid:image005.gif@01D954E6.B0C370F0]





Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Re: [BVARC] HF Antenna Advice

2021-05-07 Thread David Mehl via BVARC 
Jeffrey

The Internet has multiple pages that warn that antennas can overload and pull 
down a brick chimney.  Other pages say small antennas are okay, but don’t mount 
anything big or needing a rotor. Then again, other pages are ‘anything goes’ on 
a chimney.

So there is no consistent advice. Sort of like do you need to run ground rods 
and wires all the way around your house.


David

David Mehl
Houston TX USA

From: Jeffrey Carson 
Sent: 7 May, 2021 3:16 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: MIKE BRANNAN ; Karl Bernard ; 
David Mehl 
Subject: Re: [BVARC] HF Antenna Advice

What "warnings" did you read about using a chimney for a mount. Never actually 
heard of any myself. Is it about it not being sturdy or something else?

On Friday, May 7, 2021, 03:12:02 PM CDT, MIKE BRANNAN via BVARC 
mailto:bvarc@bvarc.org>> wrote:


Years ago I used steel strapping around my chimney to hold a heavy dipole with 
large traps. Worked fine. Even went though several high wind events.  One 
removed a large portion of the roof.
Sent from my iPhone


On May 7, 2021, at 1:14 PM, Karl Bernard via BVARC 
mailto:bvarc@bvarc.org>> wrote:

David,

I wouldn't think that a dipole of any kind would put too much of a strain on 
your chimney. Even with the balun, that one only weighs 1.2lb (per DX 
Engineering - 
https://www.dxengineering.com/parts/mfj-2010<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dxengineering.com%2Fparts%2Fmfj-2010=04%7C01%7C%7C75e1ae4030ed40ff131608d91194f336%7C84df9e7fe9f640afb435%7C1%7C0%7C637560153693234193%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=%2FjCL7d2cg1mIvKxReyn5Yh%2FYgSRkatho9RPLrHV33uY%3D=0>).

Since whatever you use as a mount will weigh more than the antenna, just be 
sure to use a lightweight mount.

Disclaimer - this only my opinion. I've never mounted an antenna on a chimney 
before.

Thanks,

Karl
W5KMB

On Fri, May 7, 2021 at 12:43 PM David Mehl via BVARC 
mailto:bvarc@bvarc.org>> wrote:

BVARC Club



I am a new ham and a club member since I passed my Tech last August at the BVAC 
testing. I have also passed both my General and Extra exam about a month ago. I 
am working on setting up a HF radio for home. I have a ‘backordered’ IC-7300 
which may show up one day. In the mean time, I am trying to plan for my HF 
antenna that will fit on my small lot.   I think I can run an 40-20-10-6 OCFD 
(*MFJ-2010) in a slope from a tree in my front yard, with the feed point hung 
off a mounted on chimney, and then on to a post above my fence in my backyard. 
I don’t have any trees in my backyard. Instead I have power lines across the 
back of the lot that I have to avoid.



I keep reading various comments and warnings about using a chimney for a mount. 
My chimney is in good repair, having been inspected and repaired during my home 
rebuilt after being flooded during Harvey.



Is the center of the OCFD a light enough load to consider using my chimney as a 
center mount? Is there a right way to do that? Or should I ‘bite the bullet’ 
and setup a pole beside the chimney?



Any other antenna advice for a novice?



Thanks



AI5DK

David

David Mehl / Houston Texas USA / dcm...@live.com<mailto:dcm...@live.com>



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org<mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.bvarc.org%2Fmailman%2Flistinfo%2Fbvarc_bvarc.org=04%7C01%7C%7C75e1ae4030ed40ff131608d91194f336%7C84df9e7fe9f640afb435%7C1%7C0%7C637560153693244149%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=9CHCPyF1ITjjhj%2Ba7Co%2BU62d0hw2iqTuPFq3lJYVAjo%3D=0>
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mail-archive.com%2Fbvarc%40bvarc.org%2F=04%7C01%7C%7C75e1ae4030ed40ff131608d91194f336%7C84df9e7fe9f640afb435%7C1%7C0%7C637560153693244149%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=7ON38yx7sEYCxUycWBa4MaCmOAw3e%2BgVW%2BXnnWJArEc%3D=0>

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org<mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org<mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.bvarc.org%2Fmailman%2

Re: [BVARC] HF Antenna Advice

2021-05-07 Thread David Mehl via BVARC 
Eric

Sorry, I should have mentioned that the chimney is brick. Years ago I had a 
satellite dish strapped to the chimney. That dish has been replaced years ago, 
but the strapping is still attached and I planned to use that strapping to hold 
up a pulley for the antenna.




David

David Mehl
Houston TX USA

From: BVARC  On Behalf Of Eric Weder via BVARC
Sent: 7 May, 2021 3:23 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Eric Weder 
Subject: Re: [BVARC] HF Antenna Advice

You didn’t mention what your chimney is constructed from ... brick, stone, 
galvanized steel???
Sent from my iPhone


On May 7, 2021, at 16:16, Jeffrey Carson via BVARC 
mailto:bvarc@bvarc.org>> wrote:

What "warnings" did you read about using a chimney for a mount. Never actually 
heard of any myself. Is it about it not being sturdy or something else?

On Friday, May 7, 2021, 03:12:02 PM CDT, MIKE BRANNAN via BVARC 
mailto:bvarc@bvarc.org>> wrote:


Years ago I used steel strapping around my chimney to hold a heavy dipole with 
large traps. Worked fine. Even went though several high wind events.  One 
removed a large portion of the roof.
Sent from my iPhone


On May 7, 2021, at 1:14 PM, Karl Bernard via BVARC 
mailto:bvarc@bvarc.org>> wrote:

David,

I wouldn't think that a dipole of any kind would put too much of a strain on 
your chimney. Even with the balun, that one only weighs 1.2lb (per DX 
Engineering - 
https://www.dxengineering.com/parts/mfj-2010<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dxengineering.com%2Fparts%2Fmfj-2010=04%7C01%7C%7C2337abaf29f44fec21b008d9119a7294%7C84df9e7fe9f640afb435%7C1%7C0%7C637560177319159414%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=jSBiBl79g92zndGzScp0wa6oYES0b1OFSrzGhaTyPMc%3D=0>).

Since whatever you use as a mount will weigh more than the antenna, just be 
sure to use a lightweight mount.

Disclaimer - this only my opinion. I've never mounted an antenna on a chimney 
before.

Thanks,

Karl
W5KMB

On Fri, May 7, 2021 at 12:43 PM David Mehl via BVARC 
mailto:bvarc@bvarc.org>> wrote:

BVARC Club



I am a new ham and a club member since I passed my Tech last August at the BVAC 
testing. I have also passed both my General and Extra exam about a month ago. I 
am working on setting up a HF radio for home. I have a ‘backordered’ IC-7300 
which may show up one day. In the mean time, I am trying to plan for my HF 
antenna that will fit on my small lot.   I think I can run an 40-20-10-6 OCFD 
(*MFJ-2010) in a slope from a tree in my front yard, with the feed point hung 
off a mounted on chimney, and then on to a post above my fence in my backyard. 
I don’t have any trees in my backyard. Instead I have power lines across the 
back of the lot that I have to avoid.



I keep reading various comments and warnings about using a chimney for a mount. 
My chimney is in good repair, having been inspected and repaired during my home 
rebuilt after being flooded during Harvey.



Is the center of the OCFD a light enough load to consider using my chimney as a 
center mount? Is there a right way to do that? Or should I ‘bite the bullet’ 
and setup a pole beside the chimney?



Any other antenna advice for a novice?



Thanks



AI5DK

David

David Mehl / Houston Texas USA / dcm...@live.com<mailto:dcm...@live.com>



Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org<mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.bvarc.org%2Fmailman%2Flistinfo%2Fbvarc_bvarc.org=04%7C01%7C%7C2337abaf29f44fec21b008d9119a7294%7C84df9e7fe9f640afb435%7C1%7C0%7C637560177319159414%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=XlgJ9aYV%2FLDVgX%2FZNTeCzYU4xF%2F2G%2BRNh6Pfc%2FZOqws%3D=0>
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mail-archive.com%2Fbvarc%40bvarc.org%2F=04%7C01%7C%7C2337abaf29f44fec21b008d9119a7294%7C84df9e7fe9f640afb435%7C1%7C0%7C637560177319169368%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=xOQ6WuuS9SJUjHjxdloIt3bWcJpvOks9Y2wbwLaEI7A%3D=0>

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org<mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here: 
https://www.mail-archive.com/bvarc@bvarc.org/

Brazos Valley Amateur Radio Club

BVARC mailing list
BVARC@bvarc.org<mailto:BVARC@bvarc.org>
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org<https://na01.safelin