[TenTec] Omni VI mystery

Sun Apr 27 15:01:02 EDT 2014

Yes.  I described this in the earlier post.  When set to the exact same
frequency, the Omni is heard by the 706 with a 700 hz tone.  That doesn't
vary with the sidetone setting which conflicts with what I read in the
manual, or maybe I'm reading it wrong.

73 de W6OGC  Jim Allen

On Sun, Apr 27, 2014 at 1:48 PM, GARY HUBER <glhuber at msn.com> wrote:

> Can you hear the Omni TX on the dummy load using the 706 in RX (no
> antenna)? Or put the OMNI TX on the antenna and 706 RX on a dummy load..
> Can you hear the OMNI VI?
>
> 73 & DX,
> Gary - AB9M
>
> -----Original Message----- From: Jim Allen
> Sent: Sunday, April 27, 2014 1:20 PM
>
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Omni VI mystery
>
> So far, it appears to be ok with WWV although USB and LSB are a few clicks
> different.
>
> RIT/XIT both off, Split off, VFO on A, side tone set for 700 hz.
>
> I set the Omni to CW on 14.050.00 on a dummy load.  I set the 706 with no
> antenna at all on 14.050.000.  Bring up power to a few watts on the Omni.
> As I change the sidetone, but not the frequency in either radio, the signal
> in the 706 does not change, indicating to me that the transmit frequency
> isn't changing either, merely the sidetone.  I thought the sidetone
> indicated the transmitter offset, which would vary exactly with the
> sidetone,
>
> Varying the sidetone throughout its range doesn't vary the received signal.
>
> I hooked up the antenna, and tuned in AD4ES, good strong signal on 14,032,
> matched his tone to the sidetone at 700 hz, pushed the power to 100 watts,
> and after his CQ sequence, gave him a call.  Nothing!  4 or 5 times, I
> repeated this.  He stopped each time and began calling CQ again by the time
> I sent my call.  XIT/RIT off, PBT at 12 noon, VFO on A, Split off.
>
> I should be able to be heard at the station with a strong signal here.
> Something is goofed up.
>
> 73 de W6OGC  Jim Allen
>
>
> On Sun, Apr 27, 2014 at 12:13 PM, Bob McGraw - K4TAX <RMcGraw at blomand.net
> >wrote:
>
>  Be sure XIT is not on nor is RIT on.  It seems that the radio might not be
>> receiving  or transmitting on the same frequency.  Also be sure you aren't
>> in SPLIT mode.
>>
>> 73
>> Bob, K4TAX
>>
>>
>>
>>
>> ----- Original Message ----- From: "Jim Allen" <
>> jim.allen at longhornband.net
>> >
>> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>> Sent: Sunday, April 27, 2014 9:25 AM
>>
>> Subject: [TenTec] Omni VI mystery
>>
>>
>>  I have an Omni VI with Opt 3 installed, purchased from an SK estate about
>>
>>> a
>>> year ago.  After our move to Texas, I got an antenna up and got on the
>>> air.  The meter and a couple of other functions were inop so off it went
>>> to
>>> TenTec.  They fixed all this, gave it a good checkout and got it back to
>>> me
>>> very promptly.
>>>
>>> I have the output going to a wattmeter, thence on to the AH-4 remote
>>> tuner
>>> which feeds the 130' dipole with twin lead.  On CW, the transmitter loads
>>> to 100 watts output, good SWRs etc.
>>>
>>> I have noticed an inability to get replies on CW.  I spent an hour the
>>> other night calling W1AW/5 in Missouri, another hour or so each this week
>>> calling W1AW/1 and /2, and various other stations.  Some of this I
>>> attribute to being a 100 watt station with a wire antenna in a pile up.
>>> There have been other instances where I have called and called only to
>>> have
>>> the other station start up a CQ again.
>>>
>>> Yesterday I decided to fire up my Icom 706 at QRP levels and work the
>>> Florida QSO Party on 20M.  To my astonishment, I had no trouble making
>>> contacts with every station I heard, running 5 watts, other than being
>>> treated as a weak signal (AGN?) which I'm sure was true.  While doing
>>> this,
>>> I heard HB9CA in the Helvetia contest, gave him a call and after going
>>> QRO,
>>> made contact.  I also worked W1AW/1 with 5 watts in 1 or 2 calls.  I made
>>> 25 or so contacts in Florida with the 706, all QRP.
>>>
>>> This started to puzzle me, so I shut down the 706 and fired up the Omni
>>> VI.  Once again, I had trouble getting responses.  I tried fiddling with
>>> the sidetone, thinking maybe I was not tuning to be inside the other
>>> station's passband, but did not improve things.  The "split" switch was
>>> off!
>>>
>>> I am stumped to imagine why I can make contacts at 5 watts with the 706
>>> but
>>> not on the Omni VI at 100 watts, same antenna.  The radio appears to be
>>> operating normally in every respect.  Is there something I am overlooking
>>> in the set up of the Omni VI?  Any other possibilities?
>>>
>>> TIA
>>>
>>> 73 de W6OGC  Jim Allen
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>>
>>>
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