Have been handed an odd request for making a connection to a Quantar unit. Customer is looking to use
tone remote control for the radio. I don't have access to a service manual and couldn't fine it on the MOL
manual section. The repeater builder site has some information, but the quality of the pictures makes it
hard to read the information there.
I gather that there is a connector on the back of the unit where you connect the tones remote wires in. If
I could understand the information, TX is on the first pair and RX is on the second pair. The picture
was blurry, but I think the TX pair use pins 1 and 2. The RX pair use pins 3 and 4. What seemed strange is
the numbers seem to start from the right and go to the left as viewed from the rear of the radio.
Can someone please correct me if I am wrong. Does anyone have a cleaner picture of the back of the radio
that shows this information any clearer?
Jim
Quantar service manual information on location
Moderator: Queue Moderator
Re: Quantar service manual information on location
I don't have the Quantar manual in front of me at the moment, but it should be the orange connector that you use for the wireline connection, whether it's tone remote or Astro modem. Most of my experience is with the connection of Astro modems, but I think the connections are pretty much the same for analog tone remote.
I found some photos from an Astro-TAC and Quantar install with astro modems, and it does appear that the back panel of the Quantar is stamped "L4 L3 L2 L1" right below the orange wireline connector.
The four wires go to the four right-most pins of the orange connector. If the screw heads on the orange connector terminals are pointing up, they seem to be numbered 8-1 left to right... On the comparator, where you can have multiple orange connectors, the ones on the bottom row are upside down (terminal screw heads pointing down), so their pins would 1-8, left to right.
I found a good photo of the a comparator orange connector where pins 1&2 were marked "in", and pins 3&4 were marked "out". So, I think you're doing things right... PM me if you want me to email you some of these pics.
Remember they'll need a DIU if they want to use tone remote for digital operation.
I found some photos from an Astro-TAC and Quantar install with astro modems, and it does appear that the back panel of the Quantar is stamped "L4 L3 L2 L1" right below the orange wireline connector.
The four wires go to the four right-most pins of the orange connector. If the screw heads on the orange connector terminals are pointing up, they seem to be numbered 8-1 left to right... On the comparator, where you can have multiple orange connectors, the ones on the bottom row are upside down (terminal screw heads pointing down), so their pins would 1-8, left to right.
I found a good photo of the a comparator orange connector where pins 1&2 were marked "in", and pins 3&4 were marked "out". So, I think you're doing things right... PM me if you want me to email you some of these pics.
Remember they'll need a DIU if they want to use tone remote for digital operation.