[Amps] Tentec 425 RX problem

[WWorldWideDX at comcast.net]

John can you help Peter.

LWY

-------------- Original message -------------- 
From: Peter <pc2a at pi4cc.nl> 

> Hi 
> 
> I face a problem with a TenTec Titan 425 amp. 
> 
> I got this amp second hand and I have this problems since then 
> What happens: 
> The amp is hook up to a K2 and give 1500W out with 70 W input that ok! 
> Its setup to key via PTT (no full break in) 
> I got a delay for 1 second when switch back to RX. 
> But this happens only when the amp get power out and a TX for more then 
> 1 sec.. 
> When there is no drive power (or very low ( 0,1W)) or when the TX is 
> very short (1-2 dids in CW) there is no delay. 
> 
> I have make a small video clip to see what I mean. 
> Its on www.xs4all.nl/~pc2a/tentec425.mp4 
> Its about 2Mb of size 
> (maybe you need Quicktime to see it) 
> 
> I do RX/TX on a carrier. 
> First I transmit a few short dids and get RX immediately 
> Then a bit longer TX and see it takes 1 sec to get full RX 
> Then a few sort TX and all ok. 
> Then reduce power to 0,1W and a longer TX with a good RX 
> 
> For this video the TX input was about 5W and get about 200W out. 
> 
> I have already replace the vacuum output relais but still the same 
> trouble during RX. 
> I have looked at the manual, but can't figure out how the input is switched. 
> 
> Any advise? 
> 
> Peter PC2A 
> 
> 
> _______________________________________________ 
> Amps mailing list 
> Amps at contesting.com 
> http://lists.contesting.com/mailman/listinfo/amps