View Single Post
  #10   Report Post  
Old December 1st 05, 04:22 PM posted to rec.radio.cb
The Magnum
 
Posts: n/a
Default Average cost of radio repair


"Chad Wahls" wrote in message
...

"The Magnum" wrote in message
...
Remember, connect a busy system as follows,
CB - Pre-amp - SWR meter - Linear - Antenna

Why would you put any SWR meter before the Amp?


Im suprised you question that. What would you think will happen if you
shove
150w upwards through a cheap basic SWR meter?

If your SWR can't handle the power output of your amp, Do you think
putting it there would give you an accurate reading of the SWR on your
antenna?



Simple, If you are running power, don't buy a cheap SWR meter. It's good

to
have the meter after the amp. You will need to see the reflected power in
case the antenna is rejecting harmonics. At which point you should cease
operation.

No but its going to be more realistic then it pinging off the scale with
extra power going through it. If its left in line it will also cause

much
greater interference than being before the linear. Think about it.


I could care less what SWR the amp is showing my radio in most cases.

I'll
check that very occasionally. I DO CARE about overall reflected power

from
the antenna. This is quite important!

Chad


Hi Chad,
I think unless you saw the original item on my website you wouldn't have
seen the "other" option directly under it which says for the better quality
SWR/PWR meters to go directly before the antenna. Im not sure if Lancer is
picking up on this one point and missed the next line because he was
chuckling at me chuckling at him, and yes, I also agree reflected power from
the Antenna is important especially when kicking power.
That said its amazing to me the amount of people who go on air and seem to
work reasonably well who have never even heard of a SWR meter never mind
tuned in their antenna... scary stuff.......that's one of the reasons I had
an accessory page on my website and a brief description in layman's terms of
what they are for.

Regards,
Graham

--
_._. _... ._. ._ _.. .. _ _ _

Radio is only a Hobby. Don't let it rule your life...

73's - Graham (www.open-channel.co.uk)