I found this schematic on line for a UV5R. http://files.radioscanner.ru/files/download/file14137/shema-baofeng-5r.pdf There is COR voltage along with some transistors that control the TDA-2822 audio chip. There is also a discrete volume control too. So you can get fixed de-emphasised RX audio to drive a URI. So it looks like the UV5r would be a good candidate for a node radio and long as you use the internal PL decoder which would be fine. 73 Jim W7RY
But the question is, will the radio hold up to the key up times? Corey N3FE From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of Jim W7RY Sent: Tuesday, February 12, 2013 12:29 AM To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Chinese Radios For Nodes I found this schematic on line for a UV5R. http://files.radioscanner.ru/files/download/file14137/shema-baofeng-5r.pdf There is COR voltage along with some transistors that control the TDA-2822 audio chip. There is also a discrete volume control too. So you can get fixed de-emphasised RX audio to drive a URI. So it looks like the UV5r would be a good candidate for a node radio and long as you use the internal PL decoder which would be fine. 73 Jim W7RY -- This message was scanned and is believed to be clean. Click here to report this message as spam.<http://simba.repeater.net:8080/cgi-bin/learn-msg.cgi?id=4D1CF1FA3.AB197>
Buy one and find out. I have no idea. 73 Jim W7RY From: Corey Dean Sent: Tuesday, February 12, 2013 5:01 AM To: Jim W7RY ; app_rpt-users@ohnosec.org Subject: RE: [App_rpt-users] Chinese Radios For Nodes But the question is, will the radio hold up to the key up times? Corey N3FE From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of Jim W7RY Sent: Tuesday, February 12, 2013 12:29 AM To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Chinese Radios For Nodes I found this schematic on line for a UV5R. http://files.radioscanner.ru/files/download/file14137/shema-baofeng-5r.pdf There is COR voltage along with some transistors that control the TDA-2822 audio chip. There is also a discrete volume control too. So you can get fixed de-emphasised RX audio to drive a URI. So it looks like the UV5r would be a good candidate for a node radio and long as you use the internal PL decoder which would be fine. 73 Jim W7RY -- This message was scanned and is believed to be clean. Click here to report this message as spam.
On 2/12/13 9:49 AM, Jim W7RY wrote:
Buy one and find out. I have no idea.
In building a cross-band repeater out of a couple of wouxuns with 12V battery replacement backs...the power adapter that was attached to the back lasted about a month before it melted and pulled the contacts away, but the radios were fine. The cheapie radios are suitable for ICAS service. Don't cheap out if you're looking to put up or fill in on an active system. For occasional use? In a car as a limited-use 'backyard' system? Probably be ok. Connected to an active network or high-use repeater network? Do it right or don't do it at all. -- Bryan In this world, you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant. You may quote me. Sent from my MacBook Pro.
participants (3)
-
Bryan D. Boyle -
Corey Dean -
Jim W7RY