Oh I forgot. Total impedance about 48 ohms
On Sat, Sep 3, 2011 at 5:16 PM, John Isaacs wrote:
R=46, X=4, SWR =1.1 at 17.91 mHz.
On Sat, Sep 3, 2011 at 4:17 PM, John Wagner wrote:
The SWR is just part of the equation. What is the R= and the X= and
the
impedance at the lowest SWR? Your MFJ analyzer
Can indicate these.
John W8JJW
-----Original Message-----
From: John Isaacs [mailto:isaacs...@charter.net] Sent: Saturday,
September 03, 2011 3:18 PM
To: John Wagner
Cc: FlexRadio@flex-radio.biz
Subject: RE: [Flexradio] Uh Oh
Thanks to all. After John's suggestion of trying a dummy load, I
realized
the problem must be in the antenna or line. According to my MFJ
analyzer,
the SWR on 18.1mHz was 1.3:1 so that wasn't the problem, but the coax
loss
between the xcvr and the window pass was 8.3 db and outside the
window 10
db. (I am not sure how that can be, but we will save that conundrum
for
later.) On the dummy. the monitor and signal profile on the
panadapter
looked and sounded fine.
Neither I nor the guy who helped me install the antenna are expert at
soldering, so I suspect the problem may be in the PL259 connectors
which I
will replace carefully. The three at ground level will be easy, but
the one
on the roof will be a bear. It will be a bigger bear if the whole
line must
come down. I am neither young nor abled. I am assuming (please
correct me if
I am wrong) that the 1.3 SWR indicates that the antenna was built
properly.
Many thanks to all for the quick and helpful responses.Please comment
further if you think it will be helpful
73 John KB1UYT
On Sat, Sep 3, 2011 at 1:12 PM, John Wagner wrote:
I would also check the antenna..is it resonant on any band? Hi SWR?
Feed
line confirmed OK? Do you have dummy load, maybe one in a tuner that
you could transmit into briefly to see what happens?
We just have to start eliminating things. Not unusual to have to go
through this...
73 John W8JJW
-----Original Message-----
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of John Isaacs
Sent: Saturday, September 03, 2011 12:09 PM
To: FlexRadio@flex-radio.biz
Subject: [Flexradio] Uh Oh
Please understand that I am a newbie, both to today's ham radio and
to Flex.
After a time away I decided to get on the air this morning.
Listening to a very strong USB station from the Isle of Man and
tried to call. No answer. Well ok, I am barefoot. Moved down the
(17m) band and called CQ a few times, no answer. Well ok too. But I
noticed that my signal looked very broad and flat topped on the
panadapter. Put on the phones and turned on the monitor, and called
again. What I heard was just unintelligible clicking sounding noise.
No hint of modulation. Am I doing something wrong or do I have a
setting wrong. I tried with DX both on and off. Here are some other
parameters:
1. I am still using the last version of PSDR. Have not
downloaded the new version yet.
2. I am running into a new antenna, a Cushcraft MA-5B. I
can't say I am all that impressed. There doesn't seem to be much
directionality. I am in VT and heard the GD6 with no loss all the
way from 60 degrees to 350.
But that is another matter, I think. While the new antenna or line
may be part of the problem, I doubt if the directionality is. (By
the way I notice that the reflecting element is slightly off plane
with the driven elements.
Is this causing a problem?)
3. While I try not to be a lid, I am not a very
knowledgeable operator. Extra Class just means I passed a test. Any
help is appreciated.
John KB1UYT
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