Topband: Inv-L Issues - Still no luck

[Paul Dulaff]

Dan

A little hard to tell what you mean by "port". Do you mean the RCS-10 port or a port on the transceiever ?

I understand you to mean that when you bypass the RSC-10 antenna switch and feed the inverted-L directly,  the inverted-L works OK on 160 meters ?

I mentioned back on 12/31 that RF at 1.8 Mhz may be getting into the control lines and causing the switch to malfunction (hot switch) under load.

A suggestion would be to look for RF on the control lines at the shack when transmitting on 160 meters. Go to the lowest power the transciever can deliver that doesn't hurt the transceiever (if possible).

Is the control line connected directly to the transceiever ?
This could explain why the transceiever is behaving erratically when operting at 160 meters with the switch. RF is getting into the control lines and in the transceiever through the control port.
Are you getting a microporcessor reset at the transceiver when the 1 minute blanking occurs ?

>From your previous e-mails in December, wasn't this syetm working OK at 100 watts (barefoot) but would malfunction with the amplifier ?

Best 73's

Paul - WB2NMI








----- Original Message -----
From: Dan Bookwalter <n8dcj at yahoo.com>
To: topband at contesting.com
Sent: Tue, 24 Jan 2012 15:48:43 -0500 (EST)
Subject: Topband: Inv-L Issues - Still no luck

Ok , I am having a real problem here that I haven't been able to solve yet.

I have an inverted L out at the tower that is about 160' long , 70ft vertical the rest sort of horiz , slopes down.... I have one run of RG213 to the RCS-10 remote antenna switch which is at the tower , it was very close to the L , so i moved it so that it is now about 4 ft away from the L, I also grounded it. what is happening is that when i transmit , even 1 dit at about 10 watts something happens out at the switch , the radio goes silent , then after a minute or two it usually starts to come back. it only affects the port that the L is attached to , my Windom is on port 2 and it works fine , so it isnt the radio , the L also works just fine on other bands , I replaced 2 PL-259's and changed the coax that goes from the switch to the L , I do not know what else to do at this point other than at night when i want to use 160 go out to the tower and connect the feedline directly to the L. It happens no matter what port i have the L connected to...

any ideas ?

Dan
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