[RTTY] Icom Rigs For Contesting

[Rudy Bakalov]

I'd highly recommend the Icom 7300. Haven't had a chance to use it for a RTTY contest, but did use it during IARU, comparing it to my 756 Pro 3 with an Inrad roofing filter. The 7300 managed close by QRM much better than the 756P. At $1500, IMHO, the 7300 is a bargain.

Rudy N2WQ

Sent using a tiny keyboard.  Please excuse brevity, typos, or inappropriate autocorrect.


> On Jul 22, 2016, at 10:05 PM, Bob Burns W9BU <w9bu_lists at rlburns.net> wrote:
> 
> According to the IC-7600 brochure, the transmit/receive DSP unit is 32-bit
> running at 266 MHz. There is a separate 32-bit DSP unit for the spectrum
> scope (which now has a water fall with the latest firmware) that runs at 200
> MHz. The IC-7410 has just one DSP unit--32 bits at 333 MHz. The 7410's
> spectrum scope is pretty minimal and does not have a waterfall.
> 
> The 7410 will decode RTTY internally. The 7600 will decode and encode RTTY
> internally which means you can do RTTY without a computer (I've done this to
> snag a few DX stations). That may or may not be useful to you if you are
> using an external RTTY decoder ala MMTTY.
> 
> Both radios have built-in USB sound cards and their drivers set up a virtual
> serial port for passing CI-V commands which means you don't need an adapter
> to connect to a PC. Note that the IC-7600 CI-V command set does not include
> a command to FSK key the radio, so you'll need an interface to key the FSK
> line on the auxiliary port.
> 
> The 7600 has a "dual watch" feature that will let you monitor two
> frequencies in the same band. It's not really dual receive, but it could be
> useful.
> 
> The 7600 has three built-in roofing filters at 3, 6, and 15 kHz. The 7410
> comes with the 15 kHz filter, but the rest are optional.
> 
> I've had my 7600 for about 2 years. It was a nice step up from my 746 Pro
> (which the 7410 replaced).
> 
> All that said, the IC-7300 is really hot right now and has more features
> than the 7410 including a full SDR architecture. I have to believe that
> Icom's engineers and product planners are working on a 7600 replacement that
> uses SDR architecture similar to the 7300. If I was thinking about a 7600
> right now, I might be tempted to wait a year or so.
> 
> Bob...
> 
> 
> 
> 
>> -----Original Message-----
>> From: RTTY [mailto:rtty-bounces at contesting.com] On Behalf Of Jim
>> Sent: Friday, July 22, 2016 2:54 PM
>> To: Thomas F. Giella W4HM <thomasfgiella at gmail.com>;
>> rtty at contesting.com
>> Subject: Re: [RTTY] Icom Rigs For Contesting
>> 
>> Tom
>> 
>> I use one of each in my SO2R setup. IC7600 and a 7410.
>> 
>> I believe the DSP in the 7600 and 7410 are the same. The 7600 has a bigger
>> color display and a band scope. I think this is the only difference?
>> 
>> 73
>> Jim W7RY
>> 
>> 
>> -----Original Message-----
>> From: Thomas F. Giella W4HM
>> Sent: Friday, July 22, 2016 10:49 AM
>> To: rtty at contesting.com
>> Subject: [RTTY] Icom Rigs For Contesting
>> 
>> I've been using an Icom IC-756 Pro 3 for contesting since 2003. Back in
> April I
>> added a new Icom IC-7410 and have found that the IC-7410 has faster IF DSP
>> and better IMD performance than the Pro 3, so have been favoring the
>> IC-7410 for RTTY contesting.
>> 
>> Presuming that the Icom IC-7600 has faster IF DSP and better IMD
>> performance than the Pro 3 also and at least equal to the IC-7410 I've
> been
>> thinking about retiring the Pro 3 and replacing it with the IC-7600. I
> would
>> appreciate comments on IC-7600 performance in RTTY contesting.
>> 
>> 73 & GUD DX,
>> Thomas F. Giella W4HM
>> Lakeland, FL, USA
>> thomasfgiella at gmail.com
>> 
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