Make sure your RF PWR control is set fully clockwise, then set the Mic
gain control to make the ALC LED flash on voice peaks. Note that because
of the duty cycle of SSB and the time constant of the meter, the output
power on voice peaks will only show about 25% of the full, peak output
power, so if you are running 100 W, the voice peaks will show 25-30 W.
The Ten Tec meter does not show peak power.
73,
Bob WB2VUF
Bob McGraw - K4TAX wrote:
> John:
>
> The Tentec mikes, both the 705 desk mike and the hand mike do require a
> polarizing voltage as they are electret elements, thus the need for the +
> voltage from pin #4. As to other mikes, dynamic mikes do not require any
> power so no connection to pin 4 is needed. Wiring of the connector is as
> follows: pin #1 is mike or audio input, pin #2 is ground, pin #3 is PTT,
> and pin #4 is +4VDC.
>
> Now you say "low voice peaks". Compared to what and how are you measuring
> voice peaks? Does the radio produce 100 watts in the TUNE mode? It should.
> If so, then switching USB or LSB, the PWR control fully to the right, thus
> maximum power just like in TUNE, advance the MIC gain until the ALC LED
> flashes frequently on voice peaks. Normally the PROC is not activated. Try
> it both ways, PROC switch in and PROC switch out. Any difference? There is
> an internal processor level adjustment as well as the PROCESSOR on the
> front. The front PROC control adjusts the amount of processing as observed
> on the meter and the internal adjustment set the processor output level such
> that when switching between no processing and processing there is no level
> shift except that average level goes up. Normal processing level as seen on
> the meter should show voice peaks swing up to the black bar. I've found
> that excessive processing begins to cause SSB to sound squashed and
> unpleasant to listen to. It also modifies the sound of the voice and makes
> it loud for cutting through QRM.
>
> To set things properly a monitor scope such as the old Heath SB-610 or
> HO-10 is a real help.
>
> 73
> Bob, K4TAX
>
>
> ----- Original Message -----
> From: "john ferro" <foxbat426@hotmail.com>
> To: <tentec@contesting.com>
> Sent: Saturday, January 26, 2008 4:05 PM
> Subject: [TenTec] voice peaks still low on paragon
>
>
>
> hi, recently i reported having low voice peaks on my paragon when using a
> shure 444d mic. earlier today i wired up a realistic mic tried it on the
> paragon and again the voice peaks are low. in both cases (the shure and
> realistic mics) pin 4 of the connector, which is the power pin is not wired
> so there is no power from the radio to the mic - i notice with the ten tec
> mics (hand mics and desk mics) there is power supplied to the mics. can lack
> of power to the mic be causing the low voice peaks - i have a ten tec hand
> mic on order, should have it on mondey or tuesday and i will try it then -
> just wondering.
>
> thanks again, john
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