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Old December 1st 05, 04:09 PM posted to rec.radio.cb
The Magnum
 
Posts: n/a
Default Average cost of radio repair


//snip//
Why would we trust your WEB page?


You dont have to trust it. Its a pointer. If your interested do a

websearch
and clarify anything you feel unsure of.

You have this statement on your WEB page:

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?


Not the point of my question, what SWR are you measuring inserting it
there?


Inserting it there you can measure the SWR of the antenna/feed and not worry
about leaving it inline and firing up the linear which might cause damage to
it. You can check the SWR before powering up the linear to make sure its
somewhere satisfactory. Its not going to be exact by any means but it will
give a reasonable guide. Also im not referring to high quality equipment,
its aimed at the beginner with basic gear to give them a broad idea.
Obviously as you get more technical you will have your own ideas. Dont
forget the other option directly under that referred to statement which was
for the more higher rated SWR/PWR meter.. ie CB pre-amp - Linear - Swr/Pwr
meter - Antenna.

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?


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 have thought about it, Not only will it not be more realistic, the
reading will be useless for determining the SWR on your antenna. What
do you mean if you leave it in line it will cause much greater
interence? You can't leave an SWR meter connected between your amp
and antenna?


It is recommended by many that you only have the SWR meter in-line while
checking out your antenna/feed. The extra connections on your feed and the
gap where it goes un-shielded through the SWR meter means theres a greater
chance of causing interference. Put that with the fact you are shoving a
much greater power through this gap and the chances of interference go up
greatly. Are you disagreeing with this?

In fact I just had to stop typing as I was laughing some more
just thinking about it.. lolol
Regards
Lancer


Im glad you took the time to look at my site. How's the 23 channel radio
going ;o)


Doing great, as good sounding as its ever been. BTW, I do have
several other 40 channel rigs.


Then I best not chuckle on the 2-4 in case you are on one of them ;o)

Nice WEB page, lots of good info on it.. Really like all the pics of
the rigs..


Thanks for that. I was going to include a vintage section to show the 23
channel radio's and the old cooker dials. Its still in the ideas pending
pile but if I do I know who to ask for some pics of them. I was also toying
with the idea of an American rig doctor list but im not sure if it would be
a success. What do you or anyone wishing to comment think? Any other
"useful" comments off people would be gratefully received as ive got oodles
of space left but don't want to fill it with un-interesting things. Even
though the website is UK based threes a lot of FCC equipment info on there
and I have no trouble increasing this.

Regards,
Graham

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

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

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