Antenna mounting question


David Johnson
 

Hello all, I've ordered, and just received today, a Diamond mount, and the HP32FHN antenna, which everyone seems to love.  My question is, do I need to ground this antenna?  I'm using the Diamond K540 luggage rack mount, and want to make sure it all works properly.

Thanks in advance,

David


John Beckwith
 

David,

Probably not - but I’ll defer to those with more technical knowledge.  In any case, most of us mount the antenna to the rack and then a ground wire from the rack to the bike.  Never hurts.

FWIW….

John, N6JCB
Westchester, CA
jbeckwit47@...
http://www.johnbeckwith.net
https://john-beckwith.smugmug.com

On Apr 16, 2021, at 12:53 PM, David Johnson <david@...> wrote:

Hello all, I've ordered, and just received today, a Diamond mount, and the HP32FHN antenna, which everyone seems to love.  My question is, do I need to ground this antenna?  I'm using the Diamond K540 luggage rack mount, and want to make sure it all works properly.

Thanks in advance,

David


David Johnson
 

Thanks for the reply John, that's what I was thinking.  I wonder which is the most common method, clamp the wire with the mount, attach it with the screws, or solder it on?

David
W6DAJ


Rod Rath
 

Hi David.

On my Harley, I clamped the antenna mount onto the luggage rack. On the inside of the lid of the Tour Box (trunk), I ran a 3/4 inch wide braided strap from a bolt holding the luggage rack on, to a mounting bolt holding the Tour Box to the bike. Then went to the frame from there. It made a big difference in my case. I use the Comet CA-2X4SR antenna. I used the Motorola CDM1550 with the head remote mounted. I do escorting with the local Police Motors, so I need their frequencies as well as Ham. Worked great for me.

The issue I have to address is, when I have my emergency LED lights on, I get RFI clicking sound into the radio. This is in Rx and Tx modes. I will get to it someday. hi hi

Hope this helps.
Rod Rath kc7vqr
Selah, WA.


John Beckwith
 

I’ve done pretty much what Rod described - a ground wire to the rack bolt on the underside of the trunk lid - to a major frame member.

John, N6JCB
Westchester, CA
jbeckwit47@...
http://www.johnbeckwith.net
https://john-beckwith.smugmug.com

On Apr 16, 2021, at 1:25 PM, David Johnson <david@...> wrote:

Thanks for the reply John, that's what I was thinking.  I wonder which is the most common method, clamp the wire with the mount, attach it with the screws, or solder it on?

David
W6DAJ


Mark Kanzler
 

Hey Rod,

Most LED light have some problem with emitting RF.Lu in Florida has discovered that problem and it sometimes takes out his receive on 2 meters. The LED lights dim when they are pulsed and only on for part of the time.  Some mfg's say they are working on the problem.

zippy

Mark Kanzler, Ham on a Hog KE6ZRP , 2016 Harley Davidson Electra Glide


On Friday, April 16, 2021, 01:52:09 PM PDT, Rod Rath <rrath@...> wrote:


Hi David.

On my Harley, I clamped the antenna mount onto the luggage rack. On the inside of the lid of the Tour Box (trunk), I ran a 3/4 inch wide braided strap from a bolt holding the luggage rack on, to a mounting bolt holding the Tour Box to the bike. Then went to the frame from there. It made a big difference in my case. I use the Comet CA-2X4SR antenna. I used the Motorola CDM1550 with the head remote mounted. I do escorting with the local Police Motors, so I need their frequencies as well as Ham. Worked great for me.

The issue I have to address is, when I have my emergency LED lights on, I get RFI clicking sound into the radio. This is in Rx and Tx modes. I will get to it someday. hi hi

Hope this helps.
Rod Rath kc7vqr
Selah, WA.


Lu Vencl KA4EPS
 

That’s correct as Mark said I tried  going LED and it was so bad that it was creating about 10dB degradation in receive capability with an antenna about 3 feet away from LED lightbulbs. I went back to incandescent for now.

On Apr 16, 2021, at 5:35 PM, Mark Kanzler via groups.io <ke6zrp_mark@...> wrote:


Hey Rod,

Most LED light have some problem with emitting RF.Lu in Florida has discovered that problem and it sometimes takes out his receive on 2 meters. The LED lights dim when they are pulsed and only on for part of the time.  Some mfg's say they are working on the problem.

zippy

Mark Kanzler, Ham on a Hog KE6ZRP , 2016 Harley Davidson Electra Glide


On Friday, April 16, 2021, 01:52:09 PM PDT, Rod Rath <rrath@...> wrote:


Hi David.

On my Harley, I clamped the antenna mount onto the luggage rack. On the inside of the lid of the Tour Box (trunk), I ran a 3/4 inch wide braided strap from a bolt holding the luggage rack on, to a mounting bolt holding the Tour Box to the bike. Then went to the frame from there. It made a big difference in my case. I use the Comet CA-2X4SR antenna. I used the Motorola CDM1550 with the head remote mounted. I do escorting with the local Police Motors, so I need their frequencies as well as Ham. Worked great for me.

The issue I have to address is, when I have my emergency LED lights on, I get RFI clicking sound into the radio. This is in Rx and Tx modes. I will get to it someday. hi hi

Hope this helps.
Rod Rath kc7vqr
Selah, WA.


Scott Farthing K6IXQ
 

David,

 

Welcome aboard. The antenna is grounded through the coax shield to the radio. That being said there is another matter “RF Ground plane” On a motor this is really tough. Mounting it to the rack with a ground strap to the frame sure dose help. Keep in mind that your rf will be strongest out the back of the motor. This can be a good thing for the rider. Also if you are in a bad area the somewhat directional rf can be used to give you a bit more umph in that direction. 440 band will be the best balance. But 2m will work fine, just not as efficient as 440. Due to the small ground plane size. Hope that info helps.

 

Scott Farthing

President

Farthing Development Inc.

949-500-2870 Voice

2021 is our 42nd year in Business

http://www.farthingdevelopment.com

 

It's all about the kids

http://tourdeoc.org

FDI Letter_Email

 

From: main@marchq.groups.io On Behalf Of John Beckwith via groups.io
Sent: Friday, April 16, 2021 1:04 PM
To: main@marchq.groups.io
Subject: Re: [marchq] Antenna mounting question

 

[EXTERNAL: Use caution when clicking links or opening attachments]

David,

 

Probably not - but I’ll defer to those with more technical knowledge.  In any case, most of us mount the antenna to the rack and then a ground wire from the rack to the bike.  Never hurts.



On Apr 16, 2021, at 12:53 PM, David Johnson <david@...> wrote:

 

Hello all, I've ordered, and just received today, a Diamond mount, and the HP32FHN antenna, which everyone seems to love.  My question is, do I need to ground this antenna?  I'm using the Diamond K540 luggage rack mount, and want to make sure it all works properly.

Thanks in advance,

David

 


Scott Farthing K6IXQ
 

Rod,

 

Try snap on tolroid beads on your led wires close to the light. This may or may not help. BTW the problem is rf not noise on the wires. Sometimes the wires turn into antennas and transmit the dirty RF through them. Let us know the results..

 

Scott Farthing

President

Farthing Development Inc.

949-500-2870 Voice

2021 is our 42nd year in Business

http://www.farthingdevelopment.com

 

It's all about the kids

http://tourdeoc.org

FDI Letter_Email

 

From: main@marchq.groups.io On Behalf Of Rod Rath via groups.io
Sent: Friday, April 16, 2021 1:52 PM
To: 'main@marchq.groups.io' <main@marchq.groups.io>
Subject: Re: [marchq] Antenna mounting question

 

[EXTERNAL: Use caution when clicking links or opening attachments]

Hi David.

On my Harley, I clamped the antenna mount onto the luggage rack. On the inside of the lid of the Tour Box (trunk), I ran a 3/4 inch wide braided strap from a bolt holding the luggage rack on, to a mounting bolt holding the Tour Box to the bike. Then went to the frame from there. It made a big difference in my case. I use the Comet CA-2X4SR antenna. I used the Motorola CDM1550 with the head remote mounted. I do escorting with the local Police Motors, so I need their frequencies as well as Ham. Worked great for me.

The issue I have to address is, when I have my emergency LED lights on, I get RFI clicking sound into the radio. This is in Rx and Tx modes. I will get to it someday. hi hi

Hope this helps.
Rod Rath kc7vqr
Selah, WA.


John Reynolds
 

Sounds like you are getting some good information on mounting your antenna.  Although many will say you don't need to ground this antenna we have found better results if you do, the better the ground the better the results.



John F. Reynolds, MSGT USAF Ret. Rialto, CA

-----------------------------------------

From: "David Johnson"
To: main@marchq.groups.io
Cc:
Sent: Friday April 16 2021 12:54:02PM
Subject: [marchq] Antenna mounting question

Hello all, I've ordered, and just received today, a Diamond mount, and the HP32FHN antenna, which everyone seems to love.  My question is, do I need to ground this antenna?  I'm using the Diamond K540 luggage rack mount, and want to make sure it all works properly.

Thanks in advance,

David


Scott Farthing K6IXQ
 

John, Yes I agree 100%

 

Scott Farthing

President

Farthing Development Inc.

949-500-2870 Voice

2021 is our 42nd year in Business

http://www.farthingdevelopment.com

 

It's all about the kids

http://tourdeoc.org

FDI Letter_Email

 

From: main@marchq.groups.io On Behalf Of John Reynolds via groups.io
Sent: Sunday, April 18, 2021 4:09 PM
To: 'main@marchq.groups.io' <main@marchq.groups.io>
Subject: Re: [marchq] Antenna mounting question

 

[EXTERNAL: Use caution when clicking links or opening attachments]

Sounds like you are getting some good information on mounting your antenna.  Although many will say you don't need to ground this antenna we have found better results if you do, the better the ground the better the results.



John F. Reynolds, MSGT USAF Ret. Rialto, CA

-----------------------------------------

From: "David Johnson"
To: main@marchq.groups.io
Cc:
Sent: Friday April 16 2021 12:54:02PM
Subject: [marchq] Antenna mounting question

Hello all, I've ordered, and just received today, a Diamond mount, and the HP32FHN antenna, which everyone seems to love.  My question is, do I need to ground this antenna?  I'm using the Diamond K540 luggage rack mount, and want to make sure it all works properly.

Thanks in advance,

David


David Johnson
 

A lot of good information, thank you to everyone, I appreciate it.  I should have specified I was asking about RF ground plane, not electrical ground.  Did you use braided copper of an actual strap?  If braided copper, did you use tinned copper?

Thanks again,

David


Scott Farthing K6IXQ
 

This or equivalent. https://www.hamradio.com/detail.cfm?pid=H0-014428

 

Scott Farthing

President

Farthing Development Inc.

949-500-2870 Voice

2021 is our 42nd year in Business

http://www.farthingdevelopment.com

 

It's all about the kids

http://tourdeoc.org

FDI Letter_Email

 

From: main@marchq.groups.io On Behalf Of David Johnson via groups.io
Sent: Monday, April 19, 2021 12:11 PM
To: main@marchq.groups.io
Subject: Re: [marchq] Antenna mounting question

 

[EXTERNAL: Use caution when clicking links or opening attachments]

A lot of good information, thank you to everyone, I appreciate it.  I should have specified I was asking about RF ground plane, not electrical ground.  Did you use braided copper of an actual strap?  If braided copper, did you use tinned copper?

Thanks again,

David


Rod Rath
 

Hi David, yes I used 3/4 inch braided tinned copper strap.

Rod Rath kc7vqr

-----------------------------------------

From: "David Johnson"
To: main@marchq.groups.io
Cc:
Sent: Monday April 19 2021 12:11:22PM
Subject: Re: [marchq] Antenna mounting question

A lot of good information, thank you to everyone, I appreciate it.  I should have specified I was asking about RF ground plane, not electrical ground.  Did you use braided copper of an actual strap?  If braided copper, did you use tinned copper?

Thanks again,

David


John Reynolds
 




Your question, braided or tinned?  Doesn't really matter just establish a ground, remember that the more strands the better.
John F. Reynolds, MSGT USAF Ret. Rialto, CA

-----------------------------------------

From: "David Johnson"
To: main@marchq.groups.io
Cc:
Sent: Monday April 19 2021 12:11:21PM
Subject: Re: [marchq] Antenna mounting question

A lot of good information, thank you to everyone, I appreciate it.  I should have specified I was asking about RF ground plane, not electrical ground.  Did you use braided copper of an actual strap?  If braided copper, did you use tinned copper?

Thanks again,

David


David Johnson
 

I like the looks of that, I'll have to order some of that up.  Today the SR10 arrived as well as the mounts for the HT.   I'm hoping to find a little bit of time tomorrow to run the transmission line from the antenna to the HT, that will provide my initial configuration.  I'll add in the braid once that arrives.  I'm can't wait to get out on the road an give it a try.

Thanks again to everyone, I appreciate all the help.  This is a truly great club!


David Johnson
 

Okay, I have mounted the antenna, and the radio, and headed over to HRO to pickup some braid to use for RF grounding (even had a QSO on the way home).  As I look for a good location to connect the ground to the bike, is it preferable to connect to an electrically ground point, or just a bunch of metal?  I can connect to either in a very short distance from the antenna.

Here are a couple of pictures of what I have done so far.  (I couldn't mount the radio where I had originally planned, so I'll need to change that)



Scott Farthing K6IXQ
 

David,

 

As the braided ground is to add to the rf ground plane it is best to go straight to any point other than an electrical ground. Either will work but there is a possibility of causing a ground loop (Audio Noise) if connected to an electrical ground. Best handheld ever made. Just my personal opinion.. Keep up the good work..

 

Scott Farthing

President

Farthing Development Inc.

949-500-2870 Voice

2021 is our 42nd year in Business

http://www.farthingdevelopment.com

 

It's all about the kids

http://tourdeoc.org

FDI Letter_Email

 

From: main@marchq.groups.io On Behalf Of David Johnson via groups.io
Sent: Thursday, April 22, 2021 2:15 PM
To: main@marchq.groups.io
Subject: Re: [marchq] Antenna mounting question

 

[EXTERNAL: Use caution when clicking links or opening attachments]

Okay, I have mounted the antenna, and the radio, and headed over to HRO to pickup some braid to use for RF grounding (even had a QSO on the way home).  As I look for a good location to connect the ground to the bike, is it preferable to connect to an electrically ground point, or just a bunch of metal?  I can connect to either in a very short distance from the antenna.

Here are a couple of pictures of what I have done so far.  (I couldn't mount the radio where I had originally planned, so I'll need to change that)



John Beckwith
 

To the Group - Anyone having a problem viewing David's pix?   Just curious how common this format has become?   It’s an Apple iPhone/iPad format - so I suspect all you Windows users won’t be able to open them - without converting first to .jpg et. al……

Just sayin’…..

John, N6JCB
Westchester, CA
jbeckwit47@...
http://www.johnbeckwith.net
https://john-beckwith.smugmug.com

On Apr 22, 2021, at 2:15 PM, David Johnson <david@...> wrote:

Okay, I have mounted the antenna, and the radio, and headed over to HRO to pickup some braid to use for RF grounding (even had a QSO on the way home).  As I look for a good location to connect the ground to the bike, is it preferable to connect to an electrically ground point, or just a bunch of metal?  I can connect to either in a very short distance from the antenna.

Here are a couple of pictures of what I have done so far.  (I couldn't mount the radio where I had originally planned, so I'll need to change that)

<IMG_1250.HEIC>
<IMG_1251.HEIC> <IMG_1251.HEIC><IMG_1250.HEIC>


William Douglas
 

I'm able to open this format with my Samsung phone but not my pc. 

Bill
k6wbd

On Thursday, April 22, 2021, 03:50:56 PM PDT, John Beckwith <jbeckwit47@...> wrote:


To the Group - Anyone having a problem viewing David's pix?   Just curious how common this format has become?   It’s an Apple iPhone/iPad format - so I suspect all you Windows users won’t be able to open them - without converting first to .jpg et. al……

Just sayin’…..

John, N6JCB
Westchester, CA
jbeckwit47@...
http://www.johnbeckwith.net
https://john-beckwith.smugmug.com

On Apr 22, 2021, at 2:15 PM, David Johnson <david@...> wrote:

Okay, I have mounted the antenna, and the radio, and headed over to HRO to pickup some braid to use for RF grounding (even had a QSO on the way home).  As I look for a good location to connect the ground to the bike, is it preferable to connect to an electrically ground point, or just a bunch of metal?  I can connect to either in a very short distance from the antenna.

Here are a couple of pictures of what I have done so far.  (I couldn't mount the radio where I had originally planned, so I'll need to change that)

<IMG_1250.HEIC>
<IMG_1251.HEIC> <IMG_1251.HEIC><IMG_1250.HEIC>