[ICOM] ICOM 756 PRO 3 - PTT?

[Robert Chudek - K0RC]

I recently set up a Rigblaster Plus at a friends place. What appeared to 
be the PTT connection on the back (labeled PTT IN/OUT) is a misnomer. At 
first I thought this RCA jack was the source of PTT from the Rigblaster 
to the radio. It's not!

The PTT for the radio is sent via the RJ45 microphone connection to the 
front of the radio. The jack on the back of the Rigblaster Plus is used 
for connecting a footswitch. Until I figured that out, I was having 
"issues" with PTT on an IC-756 Pro II radio as well.

The second issue with that particular unit is the need to open it up and 
switch jumper on the J5 header to change between CW and FSK. Although 
this interface does function, IMO it's a very poor design. They saved 
fifty cents in parts and are generating hundreds of hours of wasted time 
in support issues.

73 de Bob - KØRC in MN


On 2/23/2011 4:30 AM, Phil Krichbaum wrote:
>      I had the same problem with my PROIIIand a RigBlaster  Plus plug and
> play deal. They really should call those plug and pray units! I took the
> RigBlaster Plus out of the circuit and put it  on a shelf and now can do
> AFSK RTTY with N1MM or MMTTY, PSK or WSJT just fine with a AF in and AF
> out line plus a PTT line from another COM port that I made myself. When
> using N1MM the PTT is done in the config area by checking the PTT box.
> Anyone want an unused RigBlaste Plus? It seemed Rig Blaster couldn't get
> the PTT thing right either. I had the same red light problem but no PTT
> on the rig.
>      Phil N0KE
>
> Conrad&  Kathi Nasatka wrote:
>> All Icom Users:
>> Thank you all for the many suggestions to get my SignaKink USB working.
>> To ate nothing has worked.  That includes about 45 minutes with Jason a@ Tigertronics.
>> He sent me some suggestions that I will digest and see if we hadn't already cover in all the responses.
>> The SignaLink USB I am wolrking with has the new and latest module and no wires to arrange.
>> Many of you had suggested to look at PTT in the manual, however I looked through the table of contents
>> and there is no reference to PTT. Does anybody with an ICOM 756 PRO 3 have a reference to PTT in
>> there manuial?  I don't.  Sorry to be any bother but I am still hookmjed up on the red light coming on in the
>> SignaLink USB but it won;t key the transmitter.
>>
>> Regards&  Thank You in Advance!
>> 73
>> Conrad Nasatka
>> WB3DQD / AAT3MK
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> ----
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> Icom Users Net: Sundays, 1700Z, 14.316 MHz
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>