----- Original Message -----
Subject: Re: Antenna question from KG8ID
Thank you, I appreciate your knowledge - now I must get ready for
Church because Jesus is the reason for my repeater and everything
else...
----- Original Message -----
Subject: Re: Antenna question from KG8ID
I would use the DB-420 as is. I
have three of them in service with SWR below 1.7
The antenna is specified to have 1.5
or below at the designed frequency. I think you will find that
you will be pleased with the performance and it will outperform
the Hustler you were using.
Dick WA8DBW
----- Original Message -----
Subject: Antenna question from KG8ID
Hey Richard,
We have been hearing static and seeing the SWR gradually
going up on our top repeater antenna (Hustler Spirit Series
radome), the wireless company had a climber go up for
maintenance and we asked him to check the antenna jumper, the
connector center pin on the antenna end was blackened, the
lightning surge we took last year either entered or exited the
antenna and we set out find a replacement for the top antenna, I
have a DB420 that I acquired from a business band system, the
antenna is in great shape as well as the harness, we set it on a
short pipe in the stake pocket of a truck and tested the SWR
right off the repeater, we observed 57.5 out and 4.5 reflected
for a ratio of 1.8:1, not real bad for a antenna probably tuned
for a center of 460Mhz, I asked some knowledgeable RF guys and
they say install it as is, one said testing it so close to the
truck and the ground may have raised the SWR a little, I found
out that most say this antenna is the best repeater antenna
compared to all others, the RF people also said if the SWR was a
problem either lower the output power or install a
circulator/isolator, what is your take on this?
Perry/KG8ID