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Antenna connection adapters-kit


 

I am looking to you Elmer types out there to point me in the direction to a good source of coax and radio antenna adapters.? I am leaning toward a BNC standard for convenience sake. Thoughts??? #Imanoob

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73

Al McManus???? KN6ZVI
San Martin, CA


Avi Zamites
 

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Every connector adds loss.



From: [email protected] <[email protected]> on behalf of Alvin>> KN6ZVI <ahmcmjr@...>
Sent: Thursday, May 25, 2023 7:41:23 PM
To: [email protected] <[email protected]>
Subject: [Yaesu-FT-60] Antenna connection adapters-kit
?
I am looking to you Elmer types out there to point me in the direction to a good source of coax and radio antenna adapters.? I am leaning toward a BNC standard for convenience sake. Thoughts??? #Imanoob

--
73

Al McManus???? KN6ZVI
San Martin, CA


 

Hi Al.

I agree with standardizing on BNC.? All of my HTs have the adapters on them.? I use an HT for my mobile radio, so the BNC allows me to easily move to pedestrian mode.? I spend very little time in the car, so this works for me.

I have purchased adapters from eBay and never had any problems?with them.

Jim. N4FAF?

On Thu, May 25, 2023 at 7:41 PM Alvin>> KN6ZVI <ahmcmjr@...> wrote:
I am looking to you Elmer types out there to point me in the direction to a good source of coax and radio antenna adapters.? I am leaning toward a BNC standard for convenience sake. Thoughts??? #Imanoob

--
73

Al McManus???? KN6ZVI
San Martin, CA


 

I also standardize on BNC for my HHs.? As I use them foot-mobile as well as on better antennas in vehicles or even as p25 monitors in the house, the BNC is a good quick 50 ohm connector.
Dave J.? AF0DJ.


On Thu, May 25, 2023 at 17:52, Jim - N4FAF
<jim.babcock9@...> wrote:
Hi Al.

I agree with standardizing on BNC.? All of my HTs have the adapters on them.? I use an HT for my mobile radio, so the BNC allows me to easily move to pedestrian mode.? I spend very little time in the car, so this works for me.

I have purchased adapters from eBay and never had any problems?with them.

Jim. N4FAF?

On Thu, May 25, 2023 at 7:41 PM Alvin>> KN6ZVI <ahmcmjr@...> wrote:
I am looking to you Elmer types out there to point me in the direction to a good source of coax and radio antenna adapters.? I am leaning toward a BNC standard for convenience sake. Thoughts??? #Imanoob

--
73

Al McManus???? KN6ZVI
San Martin, CA


 

Quality connectors and loss? Maybe 1/3 of one db. Negligible.
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Clint Bradford K6LCS
http//www.work-sat.com


 

Great idea. Quality SMA connectors are rated at about 500 connects/disconnects. Protect it with a quality?
Diamond BNC-to-SMA adapter, and "wear it out" instead of wearing out the HT's connector.

Jumper cables and adapters are available at hamradio.com



--
Clint Bradford K6LCS
http//www.work-sat.com


 

The black adapters--Diamond and the cheaper ones--all have marginal fit. Even with a dab of dielectric grease they can be a struggle to remove. The stainless work much better, even if they don't look as cool.


 



But that all-metal Yaesu CN-3 adapter should be outlawed ... All metal-to-metal contact with your HT's delicate SMA jack. Drop the HT, or place some stress on it with heavier coax or antenna, and you are yanking against the SMA connector. Use an adapter with some shock absorbtion ...





--
Clint Bradford K6LCS
http//www.work-sat.com


 

That's what I've heard.
--
73

Al McManus???? KN6ZVI
San Martin, CA


 

Are the ones you have at all wobbly? I was watching a Ham Radio Crash Course video on You Tube yesterday about connectors and Josh was showing how some are much looser i.e., wobbly than others.
--
73

Al McManus???? KN6ZVI
San Martin, CA


 

Photo link gave an error 404 file not found. FYI JIC.
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73

Al McManus???? KN6ZVI
San Martin, CA


 

100% agree with you Clint.? The CN-3 adapter and the same adapter made by other companies are a great way to damage the SMA connector.


 

I'm glad you commented about the loss.? I can't count the times I have heard that connectors add loss, anywhere from 0.25db up to 1db per connector.

Jim W6LG, has a couple videos on his YouTube channel about this topic.? He uses 20 various connectors, all attached to each other, and uses a RigExpert meter, the loss was something like 0.12db if memory serves me correctly.

That being said, using cheap, bottom of barrel connectors, I would suspect that you would see some loss in db.?

A situation arose, where I had to make a repair to my 75 ft feed line for my 2M/70cm rig.? It got severed about 20 ft from the radio.? I soldered on new connectors to each end and used a barrel connector.? I didn't do any measurements in db but my SWR was the same as before, same forward power and reflected.? That example might be like comparing apples to oranges in a way but if I measured the db, I don't think I would see any meaningful loss.


 

Thanks. My connection issue is resolved.
--
73

Al McManus???? KN6ZVI
San Martin, CA