SWR flip flop with linear in line??

[CB590]

Do you have the SWR meter at the antenna?

No. A99 antenna is up above house on post..

 

[Rwb]

I thought it says an a99 cant handle much wattage? But anytime you increase power swr usually rises a small bit

 

[CB590]

I thought it says an a99 cant handle much wattage? But anytime you increase power swr usually rises a small bit

I think it's rated for like 2kw according to the book.

 

[Rwb]

Yes it says so but seems like on reviews people say lifespan is short if 500 watts or more is used heavily.just goin by what i read.
Mine works fine but most juice i can send up the pole is 100 watts

 

[Rwb]

Was reading on here somebodys post said they painted their A 99 but not with metallac paint.then another said he wrapped his with 3m electrical tape to prolong life of the fiberglass.id opt for 3m tape starting at bottom.and now 3m comes in several colors.wrapping from bottom would help keep water out.
In next couple months mine is coming down and im adding 10 ft more pipe to it.think while its down i will tape it up too. Use green 3m tape so it blends in with trees.
Great antennas and price n made in USA.

 

[CB590]

If the antenna tunes up good with just the radio then the antenna is good. Really 1.4 or 1.5 isn't bad but it could be better. The amp might need some tuning on its input. Put the SWR meter between the radio and amp and see if some matching needs to be done. If the SWR is good there then you might have a problem with the antenna coax or connections. I had to do some work to my Texas Star 350 to get the SWR right, You can see what I did here:
https://www.worldwidedx.com/threads/texas-star-dx-350-hdv-input-swr.230089/#post-627003
Chris

Put meter in between radio and linear.

Pushed 12w AM dk from radio to meter to amp.. got 1.1 on 1 and 1.2 on channel 40 with linear off. I went to 26.915 and get 1.1 as well.

With linear also off and radio set to 1.5w dk, I got a nil reading on both 1 and 40.. less than 1.1 (aka flat).

With linear on I get 1.1-1.2 on channel 1 and almost nil on 40 with the 1.5w dk.

 

[Dmans]

K3ACZ,
No problems with this set up that I can see based on the numbers in your post.
I wouldn’t change anything.

73’s
David

 

[CB590]

K3ACZ,
No problems with this set up that I can see based on the numbers in your post.
I wouldn’t change anything.

73’s
David

I hear ya.. my concern was linear on and the 1.4-1.6 SWR with the SWR/Power meter after the linear. But yes the basic setup appears clean.

 

[Handy Andy]

It's one of the most annoying things about linear, they are not true drop-in - inserts, that exhibit "transparency" when it comes to impedance.

Many people get them and coax jumpers and their needed lengths - confused and understandably - why.

Coax, different types of similar impedance as well as Linear designs and their methods to bypass or route thru are as different at someone's own fingerprints from another. They are part of the hand, but each person is unique.

 

[Dmans]

I would just run it as is and not sweat the small things.

73's
David

 

[CB590]

After playing with A99 rings I get 1-1.1 when barefoot running 12w dk on both 1 and 40.

With the RM 203 on I get 1.4 on both 1 and 40 with external meter at end of setup. At 26.915 I get 1.3 or so..

 

[Dmans]

normal

 

[CB590]

Linear on 38 and 1.. like 1.4 SWR.

Pics for reference for others.





Linear off 12w dk for 1 and 40

 

[Dmans]

Still normal.

 

[w9cll]

You're overthinking this.. there is no problem here.