[ICOM] IC-718 antenna tuning and SWR

[Gary P. Fiber]

The IC-718 does not have FM and the Tune button does nothing unless an 
Icom or similar tuner is attached.
He needs to use CW mode with a CW key and BK-IN enabled, AM mode and 
press the PTT on the mic, RTTY mode and press the PTT to send a carried 
to check SWR.

Gary K8IZ


On 6/25/2010 12:55 AM, Hal WD4MDA wrote:
> Patrick,
> I meant to include.
> If you set the rig in rtty or fm and hit the tune button you should get a
> swr reading.  I use foot switches here but it is all the same except for Cw
> mode.
>
> 73,
> Harold "Hal"  Stang / WD4MDA
> wd4mda at comcast.net
> wd4mda at yahoo.com
> Yahoo IM @ wd4mda
> Field Hell - #2599
> 30mdg - #3772
>
> ----- Original Message -----
> From:<kb8rtz at oh.rr.com>
> To: "ICOM Reflector"<icom at mailman.qth.net>
> Sent: Thursday, June 24, 2010 9:53 PM
> Subject: [ICOM] IC-718 antenna tuning and SWR
>
>
>    
>> Good evening,
>>
>> I have an IC-718 and am attempting to narrow an SWR issue with a new
>> Hustler 6BTV. The last few days have been frustrating to say the least.
>> The instructions in the Tx manual say to set the power above 30W, set the
>> operating mode to either CW or RTTY, set the display to show SWR; tune to
>> a frequency and push the PTT button. Realized that I didn't follow the PTT
>> instruction and have instead been pushing the DIT command on the
>> electronic microphone keyer to check SWR.
>>
>> Anyway, on 10m the SWR seemed just fine using the CW DIT command. On all
>> bands (10-15-20-40 check so far) while in CW mode and pushing PTT the SWR
>> reads 1:1 or less. While in RTTY mode the SWR on 10m slopes upward from
>> 1.75:1 at the low end to 2.5:1 at the high end. The SWR in CW mode and
>> pushing the DIT command the SWR was even higher.
>>
>> My questions are:
>> Why when pushing PTT in CW mode there is no SWR reading?
>> Why when pushing PTT in RTTY mode there is SWR?
>> Why when pushing DIT command on the electronic microphone keyer there is
>> SWR?
>> The last question comes from the manual stating to set to either CW or
>> RTTY then push PTT to read the SWR.
>>
>> Thanks much.
>>
>> 73...Patrick...KB8RTZ...
>> ----
>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
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