Dave Barber (G8OQW), what are you on OM?
Tonight, I made a post about a real-world test I did for 70 cms two weeks ago, just before my Group Scout Camp since I had a choice to make a 25 meter extension lead out of Westflex or EcoFlex 15 for a walkie-talkie system based on 70cms that I promised to run for my Foundation candidates. I ran both coax types up the tower and tested them out individually on 70 cms with a local station (sub-20 miles) on both 145MHz and 433MHz. The results showed a dramatic difference between the Westflex above 2 meters. Essentially, my test demonstrated that fall-off with the Westflex was dramatic as the frequency became higher. In response to a query on Westflex to the UK Contest reflector, I posted an answer explaining my findings that EcoFlex out-performed Westflex by a large margin.
His reply is as follows:
Hi Callum
That is an astonishing difference!
For the figures quoted @ 432MHZ
25m WE103 = loss 1.88dB
30m Eco15 = loss 1.83dB
So a theoretical feeder difference in your setup of 0.05dB.
Now as an owner of a TS2000 I know the S-Meter on FM is a farce but for a moment lets take it as being correct and an S point = 6dB increase so your 6 S point increase would indicate a signal level difference of 36dB at the radio.
That really stretches the imagination and if correct you should easily become a multi millionaire overnight!
David, I’m not sure how I am to make my money, perhaps you can send me cheques for my experiments?
Callum.
