John. Thanks. That’s probably it. ! I’m using the same so239 for both.
Sent from Yahoo Mail for iPhone
On Tuesday, May 28, 2024, 4:51 AM, anthony moro via BVARC <bvarc@bvarc.org>
wrote:
I would have to agree with John. Also if the antenna has a set screw on the top
part then maybe it could be shortened or lengthen. But first check the
analysier. There have been a few of them that I have used and needed a
different connector to measure different bands.
On Mon, May 27, 2024, 7:23 PM John Denison via BVARC <bvarc@bvarc.org> wrote:
Terry are you using the CAA-500 Comet analyzer? If so, then are you using the
N connector to test 70cm? The manual states that the UHF (SO-239) connector is
for everything 300MHz and below, and the N connector is for 300 to 500 MHz. As
it is, its like there is no antenna connected to the N connector and thus your
SWR is at infinity.
73
John Denison
KD5YOU
On 5/27/2024 6:33 PM, terry leatherland via BVARC wrote:
I'm sure someone knows about Mobile antennas. Our friends at River Oaks Car
Stereo for sure. Anthony? Here is my dilemma , or something I am doing wrong.
I bought this antenna to mount on my new truck. I have a brand new Comet
analyzer. The antenna is hood lip mounted with a comet Hood mount. When I
analyze the raw antenna thru its one piece of coax, it is perfect 1.5 or less
on 2Meters @ 50ohms. But when I dial up to 440 Mhz, the swr and Ohms is off
the chart. My radio is my old reliable Kenwood TMV71 of which I have 3
identical.
Shouldn't I be able to just change the band knob to 430 and it read good SWR?
Do I have to find the resonant point of the upper band and start trimming the
top length down to 440 good swr? I'm perplexed or doing something dumb.
Terry
Terry Leatherland, K5PGF 281-455-8090 Sugar Land, Tx
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