[VHFcontesting] Icom 9700 vs Icom X75 series

[Dave Clouser]

For separate PTT, I use a simple audio/video switch off amazon.  I think 
it was $15.  Has 8 positions that I have hooked up to separate 
amplifiers, transverter, etc.
I just have to remember to push the button when I change bands :-)

73

Dave NZ3M


On 2/18/2020 6:43 PM, Bruce Herrick wrote:
> Make a project out of it, Ron.  Send me a schematic and I'll do a PCB for it.
>
> 73,
> Bruce WW1M
>
>> The decoder board I made was for the Yaesu FT-991.
>> It provides separate TX gnd outputs for different bands
>> as well as outputs for coax relays to switch antennas.
>> The difference is Yaesu has parallel BCD band data,
>> ICOM has serial band data coming out. But that would
>> be fairly easy to implement with a serial in shift register
>> like a CD4094 and some glue logic.
>> -73 Ron WZ1V
>>
>> ----- Original Message -----
>> From: Bill Olson <callbill at hotmail.com>
>> To: Crownhaven <crownhaven at bellsouth.net>,        "vhfcontesting at contesting.com" <vhfcontesting at contesting.com>
>> Date: Tue, 18 Feb 2020 19:32:08 +0000
>> Subject: Re: [VHFcontesting] Icom 9700 vs Icom X75 series
>>
>>> Ron, WZ1V actually homebrewed the whole thing .. I saw a write up somewhere.. Ron??
>>>
>>> bill
>>>
>>> ________________________________
>>> From: VHFcontesting <vhfcontesting-bounces+callbill=hotmail.com at contesting.com> on behalf of Crownhaven <crownhaven at bellsouth.net>
>>> Sent: Tuesday, February 18, 2020 7:00 PM
>>> To: vhfcontesting at contesting.com <vhfcontesting at contesting.com>
>>> Subject: [VHFcontesting] Icom 9700 vs Icom X75 series
>>>
>>> I'm curious to hear from anyone who has transitioned from the Icom
>>> 275/475 to the Icom 9700.  I've been using the 275/375/475 with great
>>> success but they are old radios.  No idea if an upgrade would be worth
>>> it.  I do find it strange that Icom continues to provide only one ACC
>>> port which makes keying, etc., amplifiers on all three bands
>>> problematic.  I might also ask if anyone makes a break-out box that
>>> solves THAT problem.
>>>
>>> Regarding 1296, I'm using an DEMI 50 watt transverter for that band and
>>> would hate to have to buy a 1296 amp to compliment the 9700's 10 watts.
>>>
>>> Any experiences, thoughts, hello's from old friends appreciated.
>>>
>>> Steve, N4JQQ, EM55BD, six - 2.3
>>>
>>>
>>>
>>>
>>>
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