[TenTec] din connector, etc.

[Carl Moreschi]

I can tell you the Eagle has one of the best QSK's I have ever used.  I 
believe the 18 msec is the delay from energizing transmit circuitry to 
starting the CW keying waveform.  That delay is to give amp relays time 
to energize.

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 9/24/2014 2:38 PM, Jim Brown wrote:
> Understood, Rick. But 17msec pretty much rules out QSK above about 18
> WPM. A strange design compromise for Ten Tec. :) Frankly, I'm both
> surprised and disappointed to see Ten Tec go for the lowest common
> denominator -- they never used to do that. For my money, amps with open
> frame relays are for ragchewing on SSB, not serious operating.
>
> FWIW, delay in the K3 is continuously adjustable, and I think it is in
> the FT1000MP too. I sold mine around 2008 to buy my K3s. The TS850,
> which I also owned, is fixed at about 8 msec. The K2 is 8 msec.
>
> Also FWIW, K6XX published a simple "speed up" circuit for T/R relays
> quite a few years ago, which he credits to K1KP.
> http://www.k6xx.com/radio/fastrely.pdf
>
> 73, Jim K9YC
>
> On Wed,9/24/2014 2:08 AM, Rick - DJ0IP / NJ0IP wrote:
>> Jim, I just sent an email explaining exactly how the Eagle works.
>> The Orion and Omni VII both have 15mS initial delay. The Eagle is 17.
>>
>> "17mS" is relative.
>>
>> For amps with vacuum relays or PIN Diode switching, it is long.
>> For amps with open-frame relays it is too short.
>>
>> I have never seen an open-frame relay that can switch in all cases, no
>> matter what, in less than 20ms.
>> The open-frame relay used in all Ameritron amps can occasionally take as
>> long as 22mS - even though Ameritron advertises 15mS.
>
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