Jim,
Tnx. I c what u mean. Anyway, i took my antenna coax switch out of the
line yesterday and went right to the antenna. Used the rig all day on all
the bands i have antennas for. it worked fine. i'm hoping the problem
was caused by my very
old ant. switch and NOT the Omni. Tests continue today.
Bob Mauro, Mauro@Idt.Net Amateur Radio Station KZ2G
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My DisAbility Website http://idt.net/~mauro
My Amateur Radio Website http://idt.net/~mauro/kz2g.html
My Levittown, NY Website http://idt.net/~mauro/levittwn.html
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If my IDT mail bounces, send it to kz2g@altavista.com
On Mon, 18 Sep 2000, Jim Reid wrote:
> > I talked to Ten Tec and Paul Clinton of their service dept
> > says the Omni 6+ has NO RELAYS in it! Is that true? i
> > thought my problem may be a TR relay in the rig.
>
> Look in your Omni VI+ manual, page 4-3. If that relay, K1
> right in the middle of that diagram, which is switching the
> Antenna connector, at the top left of the diagram, to
> the "RX INPUT" middle diagram, left side, is not a T/R
> relay, would sure like to know that the TT folks believe
> it to be!!
>
> Further, the text discussion about this circuit board,
> page 4-2, at the top of the right hand column of text
> reads, "On receive, K1 is open...... And further down
> that same column of text, last paragraph begins,
> " During transmit, relay K1 is closed,......."
>
> If that relay tends to be a bit "sticky", that is not fully
> open on rcv, part of the input signal from the antenna
> is not going to go to the rcvr input; but rather get lost,
> or shunted off into all that low pass xmit filter stuff on
> the right side of the diagram, not good!
>
> On transmit, or PTT push down, that relay gets a hard
> "close" command, shorting the antenna to the transmit
> output circuitry, and presumably the diodes in series
> with the rcvr input are biased off. On key up, or PTT off,
> that relay should full open.
>
> May not be your problem spot, but that is, for sure, what
> I would call a T/R relay, hi.
>
> Sure is behaving as a T/R relay anyway, hi.
>
> 73, Jim, KH7M
> Very pleased Omni VI+ user.
>
>
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