Re: [Repeater-Builder] Remote base radio help...

[Doug Zastrow]

I interfaced a VXR-5000 to several different controllers over the years and got painfully familiar with the available inputs and outputs.   You mentioned that you connected the collector of your interface circuit to the COS pin on the VXR-5000.  What connector and pin on the VXR are you considering the COS?   Normally the COS is an output from a receiver indicating the presence of a signal.  But from your description it appears that the logic level you are buffering from the ICOM remote base is actually a COS.  If you are trying to force the VXR-5000 to transmit when the ICOM is receiving a signal you would need to force the PTT active on the VXR-5000.   Conversely, to have a received signal on the VXR-5000 key up the remote base you would need to take the VXR-5000 COS and interface it to the remote base PTT.   There are other considerations to take into account....  Is the VXR-5000 interfaced to a controller is it using it's own internal controller?  Audio routing in the VXR-5000 also depends on whether it is using an internal vs. external controller.   Doug ----- Original Message ----- From: n2len To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 07, 2006 1:03 PM Subject: [Repeater-Builder] Remote base radio help... Hello, I am presently hooking ua remote base radio to my vxr5000. The 5000 COS needs a contact closure to make function. I am using a ICOM 207 via 6 pin mini din for signaling. I have used a 2N2222 transistor set up as a open collector output circuit to trigger the COS on the 5000 repeater. Diagram: Base---ICOM207 Squelch Output to 4.7K resistor to base leg of transistor Collector----Feeds COS pin on VERTEX VXR5000 Emitter----GND Now the link radio only works one way when I switch it on. When the 5000 transmits the link radio keys up and sends audio to the other machine. But when the other machine keys up nothing back. The link radio receives the signal but it dosent throw the 5000 into transmit. So I am thinking I have a COS problem with the transistor circuit I built. So my question is. Do I need this transistor circuit to activate COS on the repeater or can I just wire the Squelch output of the 207 directly to the COS pin on the VXR5000. Is the ICOM207 logic level at the mini din. I know that this is specific information to my situation, but I figured to ask anyway. Thanks....   Yahoo! Groups Links <*> To visit your group on the web, go to:     http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to:     [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to:     http://docs.yahoo.com/info/terms/   YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.