Hi SPE using a smal coax RG58 as capacitor in the RF detection / SWR system
I seen this melted!!! This made SWR trip & go bananas…. Open the amp and check it Just my two cent….. Best Regards, Stein-Roar Brobakken s...@lb3re.com LB3RE LC0X K3RAG Skype: lb3re.rag > 30. okt. 2021 kl. 02:42 skrev Adrian <vk4...@gmail.com>: > > Sounds like you are still unsure, and that is a guess. You said the swr is > 1.4:1 , I guess this what the SPE shows with SPE in standby, and txcr keyed ? > > If so when switched to operate, you should be able to gradually increase > drive power form a very low level and raise until you see the output power > > level where SPE indicated swr suddenly increases and trips the amp? Or is the > alarm instant regardless low low drive is in low power profile. > > Test in FT8 in ssb is one good way to go from 0 output & up using audio level > adjustment modulating the drive. > > The SPE can be controlled from a few watts output smoothly through to the > point where issues occur. > > If the swr holds good until a output power level point where it fails, then > it provides more clues to the problem. > > An instant swr trip to standby regardless of drive level however low or 0, is > another issue. > > > vk4tux > > >> On 30/10/21 09:54, WW3S wrote: >> With the help of #1 son, during a lull in the monsoons, we isolated it to my >> KK1L 2x6 box, mounted on the outside of the house. Sounds like maybe some >> relays clicking and clacking, probably rfi coming thru the control cables, >> despite clamp on toroids everywhere and the cables wrapped numerous times >> thru double ferrite cores. I do have a couple of unused ports, I wonder if >> it will help if I terminate those with dummy loads? >> >> Sent from my iPad >> _________________ >> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector