creighd

Hi Danny,

I hope you can help me. I have a lot of JR radios and receivers. What I would like to know is, are any of the recievers narrow band (gray xtal???) and if the transmitters can be changed to narrow band by changing the modules to a narrow band module. What I have is the following.

RX is a: ner-326 gray xtal
RX is a: ner-226 gray xtal
RX is a: ner 527x black xtal
RX is a: ner-327x black xtal
TX is a: Apollo series, net-dl126hm with a net-j72m tx module
TX is a: Century 7, part #???, module is a net-j72m


I hope you can help, my boy just started flying and his style of flying so far requiers a few extra radios.

Thank you,
Dennis

dsnyder

The 326 should be an AM receiver, and I believe that it is narrow band, especially if it has the gray crystal. The 226 is narrow band and is FM. Both the 527 and 327 would be wide band. The Apollo is likely wide band, the century 7 we would need to see it in order to know for sure. It may be narrow or wide band.

creighd

Hi Danny,

Thanks for getting back to me. I am still confused with what I have. All recievers work with both transmitters. This would be a mix of FM and AM. Is that possible and still have them work?

In any case I would like to know how to identify the narrow vs wideband transmitters. Is it as easy as the module part number being NET-J72M for wideband and NET-J72P for narrowband. Is all I have to do is find a NET-J72P narrowband module and use it??

Thanks again for your help,
Dennis

dsnyder

They should not work together. If they are working together, it is not a very good link and should not be trusted.

A new module would work just fine. That is correct on the part numbers, but the J72M may or may not be wideband. The best thing to do would be to send the equipment in and have it checked over.

creighd

Thanks again Danny for your help.

Dennis

creighd

Thanks again Danny for your help.

Dennis