TenTec
[Top] [All Lists]

Re: [TenTec] Urgent OMNI VII Question

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Urgent OMNI VII Question
From: bcarling@cfl.rr.com
Reply-to: bcarling@cfl.rr.com, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 09 Jul 2014 12:42:57 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Thank you so much Bob...

It shows VER 1035-588

Thanks so much for showing me the settings. I will comp[are to mine and salso 
give a 
thorough listen to the CW note on rcv after this rest. So far it has sounded 
better to me.

Bry, AF4K


On 9 Jul 2014 at 10:05, Bob McGraw - K4TAX wrote:

> 
> Brian: This is a bit long, so take some time to study this before you start 
> turning knobs and 
> punching buttons.
> 
> 
> Start with a Master Reset. You don't know what is actually resident from 
> previous usage. Also, 
> the current firmware version 1.036 addresses some AGC issues that exist in 
> earlier versions. To 
> see your version of firmware, press and hold the A=B button at the top right. 
> The version will be 
> displayed at the top left as VER x.xxx 588 RADIO.  
> 
> As to background noise the receiver is very quiet and not like of other 
> receivers that have a good 
> bit of internal generated noise. 
> 
> There is no way to "turn the DSP off" as someone posted. Perhaps they were 
> referring to the NR 
> or NB functions. These are controlled by the buttons at the bottom and 
> clearly say OFF when 
> such. Otherwise there is some numeric value from 1 - 9 with 1 being less and 
> 9 being most active 
> for the function.
> 
> I find the NB should only be used when repetitive pulse noise is present. 
> Noise like the tick tick 
> tick from an electric fence or ignition noise from a vehicle. The NR values 
> will need to change as 
> needed between bandwidth and mode and AGC settings. Typically for SSB I use 
> values of 1 to 
> 3. For AM I use higher values. Again this is somewhat dependant on band noise 
> and mode. 
> 
> On AGC, for SSB I use SLW or MED and for digital modes or CW I use MED or FST.
> 
> Regarding MENU values, for your thoughts, here are my most current ones: 
> {Sitting here thisevening on 75M SSB, rag chew mode, here's what's in the 
> radio. The antenna is 
> a 75M coax fed dipole.}
> 
> Front Panel settings:
> 
> PBT = 0000
> BW = 2800
> RF Gain = 35%
> AF Gain = 30% {using external speaker}
> AGC = SLW
> NR = 3
> AN = OFF
> MIC = 35%
> ATTN = OFF
> PRE = OFF
> MON = 0%
> NCH = OFF
> NB = OFF
> SP = ON {value is 35%}
> VOX = OFF
> 
> From the MENU:
> 
> Auto Tuner = ON {internal tuner is installed}
> TX Meter = SWR
> Transmitter = ON
> SSB TX BW = 2600
> TX Roll Off = 100 Hz
> Keying Loop = ON {I use my Centurion Amp}
> Audio Source = MIC
> Line Gain = 50% {I use a TT 712 USB interface for PSK-31}
> EXT T/R Delay = 0%
> FM TX CTCSS = OFF
> RX Equalizer = 0dB
> TX Equalizer = 0dB {I use the TT 709A microphone}
> Recall Sub = OFF
> Sidetone Frq = 700Hz
> Sidetone Vol = 2% {works for speaker, needs more for headphones}
> Spot Volume = 50%
> CW QSK Delay = 0%
> CW Weighting = 10%
> CW Keyer = Mode A
> CW Rise/Fall = 5ms
> Auto Sweep = ON
> Sweep Range = 30K
> VOX Trip = 85% {will depend on hardware mike gain setting}
> Anti-VOX = 7%
> VOX Hang = 15%
> FSK TX Data = Mark High
> Remote F1 = Step
> Remote F2 = Mode
> Remote F3 = Rev
> Remote Enc = VFO A
> POD Encode Rate = Slow
> VFO Encode Rate = Fast
> RIT Encode Rate = Slow
> VFO SPDShift = ON
> Display = 30%
> Speech Proc = 35%
> I-F Filter = AUTO
> Enable 300 Hz = Yes
> Enable 500 Hz = Yes
> Serial IF = Omni VII
> Regarding the use of the Speech Processor, here are my measurements:
> 
> I did find is the following data andthe actual SP values vs. power output. It 
> is noted that in 
> between the steps there is no power change. Case and point, at values between 
> 18% and 28% 
> the power remained at 2.0 watts. Between 28% and 29% the power changed from 
> 2.0 W to 3.5 
> W. The same held true for other increment of steps. Back some time ago, John 
> Henry confirmed 
> that there are actually 9 steps in the Speech Processor control algorithm.
> 
> Power output = 2 W with SP off
> With the SP on the following is observed:
> 0%= 0.75W or - 4.3 dB
> 7% = 1.0W or - 3 dB
> 18% = 2.0W or 0.0 dB
> 29% = 3.5W or + 2.4 dB
> 39% = 6.7W or + 5.3 dB
> 50% = 15W or + 8.8 dB
> 62% = 40W or + 13.0 dB
> 73% = 70W or + 15.4 dB ALC is now on and no further increase in SP gain 
> produced any 
> increase in output power
> 
> This does concur that the effective SP value should be about 40% to 50% to 
> attain some 6 to 8 dB 
> of increase in output power.
> 
> 
> 
> In conclusion, I suggest you spend some goodly amount of time reading the 
> manual. Cover to 
> cover several times. This radio does not and will not operate nor perform 
> like other radios you 
> have had on your desk. Don't expect it to, nor try to operate it like the 
> Omni VI or others, it won't. 
> However, once you learn to use the radio and its features and functions, you 
> will discover it does 
> easily outperform the others. 
> 
> 73
> Bob, K4TAX
> 
> 
> 
> 
> 
> 
> ----- Original Message ----- 
> From: <bcarling@cfl.rr.com>
> To: "Walt K8CV" <waltk8cv@wowway.com>; <tentec@contesting.com>
> Sent: Wednesday, July 09, 2014 7:06 AM
> Subject: Re: [TenTec] Urgent OMNI VII Question
> 
> 
> > Thanks Walt. I don't know how to turn the DSP off yet - or down.
> > 
> > Hopefully a reset won't be necessary. I tried adjusting the NB and it did 
> > not help.
> > 
> > On 9 Jul 2014 at 0:18, Walt K8CV wrote:
> > 
> >> Try turning the DSP off or to 1. Check that NB is off or 1. Turn off the 
> >> preamp! Maybe do a 
> complete reset?
> > 
> > 
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >


_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

<Prev in Thread] Current Thread [Next in Thread>