[net.ham-radio.packet] Schematic of TNC to ICOM HT

ka2ugq@ky2d-2.UUCP (Tom) (01/11/86)

> Would one of you be kind enough to mail the info to me 
> regarding the use of an icom 2AT with a tnc. I seem to 
> remember it on the net before but unfortunatly didnt 
> save the article.    
>                         thanks in advance.....johnd
> 
>  UUCP: {ucbvax,decvax,ihnp4}!vax135!petsd!pedsga!johnd                 
>  PACKET RADIO GATEWAY: ............!mtunh!ky2d-2!ka2qhd  tnx de KA2QHD 
> ========================================================================   

Here is the schematic that I used to interface my GLB PK-1 to an
Icom IC-2AT HT, but it should work with any TNC and the Icom 02AT
or 2A just as well.


                      Audio out         PTT        Ground
                      from TNC
                         |               |           |
                         /      (.47 uf) |           |
                         \               =           |
                  (25K)  /               |           |
                         |               |           |
  Icom HT: mic-----------+---------------+           |
           gnd---------------------------------------+

-Tom Brown KA2UGQ

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