[WriteLog] Simple & compact USB>Radio Control/CW/DVK/RTTYinterface

[Joe Subich, W4TV]

> I don't think AFSK works with the 765 in RTTY mode - but I
> may be wrong. Check your manual (mine is 150 miles away).

None of the Icom transceivers work with AFSK in RTTY mode.  To 
operate AFSK you must be in LSB (or USB) for any rig prior to 
the IC-746Pro or IC-756ProII.  

Icom introduced LSB-D/USB-D in the 746Pro/756ProII which, I 
believe, mutes the microphone (uses the ACC jack for audio) 
However, LSB-D/USB-D still uses the wide USB/LSB filters 
rather than the special RTTY filters.    

73, 

   ... Joe, W4TV 
 
PS.  If you want to avoid the "hot mic" and "windows noises" 
     issues as well as have an interface that supports all 
     modern computer controlled radios, your choice of Windows, 
     OS-X or LINUX, and FSK (EXTFSK in MMTTY or "Software FSK" 
     in RTTYRITE, pFSK with fldig), look at the microHAM USB 
     Interface III: http://www.microham-usa.com/Products/USB3.html. 
     The USB Interface III includes the transceiver interface 
     cable and costs less than the RigBlaster Plug & Play when 
     you add up all of the required cables/adapters and a 
     separate USB soundcard. 
 




> -----Original Message-----
> From: writelog-bounces at contesting.com
> [mailto:writelog-bounces at contesting.com] On Behalf Of Don Melcher
> Sent: Friday, October 30, 2009 8:37 PM
> To: writelog at contesting.com; John
> Subject: Re: [WriteLog] Simple & compact USB>Radio 
> Control/CW/DVK/RTTYinterface
> 
> 
> 
> WRONG!!! There is no way that can be possible - It has to be
> an oversite/ignorance by West Mountain. The 765 is CI-V 
> interface just like EVERY Icom since the 735 (though the 735 
> control code "word" is one bit less in length - but that has 
> NOTHING to do with the interface - only the software). The 
> only differences in the radios is the CI-V address is 
> different for each model and the baud rate - the original 
> standard was 1200 in the 735 but the later radios - like the 
> 765 - the address and the baud rate can be changed with dip 
> switch settings. 
>  
> The ACC-1 jack is an 8 pin din and the pin-out is the same on
> EVERY Icom HF radio - even their marine HF Rigs have the same 
> pin-out. The only radios since the 735 that doesn't have an 8 
> pin ACC1 (and 7 pin ACC2) jack is the 706 series, 703, 718 & 
> 7000 (I haven't looked at the latest crop like the 7200). 
> Those have a 13 pin DIN jack and Icom makes an adapter that 
> will split that into 8 & 7 pin jacks that are EXACTLY like 
> the rest. Even the 751/751A with a UX14 CI-V board or equal 
> and an adapter that Icom made for the 24PIN Molex to an 8 & 7 
> pin is compatable. That is how the PW-1 will auto band change 
> with any CI-V Icom radio since the 735 (and the 2KL, 4KL, 
> AT500 etc work with everything since the 701 if the proper 
> board inside in the case of the early rigs).
>  
> I have a 765 as well as a 706IIG, 746, 756proIII, 703, 7800,
> 751A, 740, 745  (no CI-V on the 740 and 745 but the same 
> adapter for 751A gives me the 8 & 7 pin din plugs) 730 (also 
> no CI-V but ditto on the ACC jacks), 735 plus maybe a couple 
> of others I have forgot about. Unfortunatley, my CI-V in the 
> 765 is not working at the moment (there is an Icom service 
> bulliten about the problem - it is a couple of transistors 
> that go and I need to replace them - I am just lazy and put 
> another radio it its place until I get around to it). 
>  
> NOW - What you DO need to be aware of if you use it for RTTY
> or PSK 31 is that IF you have a Mic connected to the jack on 
> the front - that mic will be hot when you transmit in LSB (or 
> USB) for those modes. Everybody is always shocked at this and 
> can't understand it - thinking that the mic is switched in by 
> the PTT switch. Think about it - how ELSE would VOX work?   
> This interface does not have FSK keying so I think you will 
> have to use LSB for RTTY - I don't think AFSK works with the 
> 765 in RTTY mode - but I may be wrong. Check your manual 
> (mine is 150 miles away). FOr DVK you would connect you mic 
> to the mic in of your computer and it will switch from the 
>  
> Just go to the Icom website pull up any manual for any Icom
> HF Rig from the 735 on and you will see what I mean.  Compare 
> it with your manual.That is the beauty of Icom - an actual 
> standard that has been essentially the same for at 25 years. 
> As opposed to Yaesu which almost does it different on every 
> new rig and to a lesser extent Kenwood (some rigs are TTL 
> while the newer radios are RS232 and there are some minor 
> differences in a couple of their rigs in the functioning of 
> the 13 PIN jack pin outs for PTT). I am a dealer for SCS 
> PactorII modems (as well as an Icom marine dealer) and I deal 
> with this every day. It is to the point that I won't support 
> Yaesu and I hesitate with Kenwood. But Icom - no problem as 
> they are ALL the same except as I noted.  
>  
> If you buy one and it DOESN'T work with your 765 I will buy
> it from you.
>  
>  
> 
> --- On Fri, 10/30/09, John <n8rf at neo.rr.com> wrote:
> 
> 
> From: John <n8rf at neo.rr.com>
> Subject: RE: [WriteLog] Simple & compact USB>Radio
> Control/CW/DVK/RTTY interface
> To: don at hfradio.com, writelog at contesting.com
> Date: Friday, October 30, 2009, 4:37 PM
> 
> 
> >From looking at the Radio Compatibility Cart on the West
> Mountain Radio
> >web
> site I see that the ICOM IC-765 in NOT supported. Oh well so
> much for hoping something will work with the IC-765. 
> 
> N8RF
>