I was talking to Brian G4ZRP the other day and he told me how he has been spicing up some of his 2m SOTA chasing. He said he’d got a bit fed up chasing using 500mW from his FT290Mk1 and so had been trying the more challenging chasing with 50mW.
Having acquired a box containing assorted inline attenuators he’s been putting them in the feedline and chasing stations. A 10dB attenuator drops the RX’d signal by about 2S points and so hardly affects the signal from most activators. But it does cut down his signal. Anyway that was enough of a challenge as he’s worked a whole bagful of stations with 50mW.
So now he’s onto the 15dB attenuator. Fed with 500mW the TX signal will be around 16mW. He told me he worked Phil G4OBK on Harter Fell LD-028 and got a 53/54 report from Phil whilst Phil was 57. Remember that’s with the attenuator in the TX/RX path! The WX hasn’t been brilliant since then so he’s not tried further but will continue using the 15db pad. After that there’s a 20db and then he’ll try them in series! Nothing in the setup has been calibrated so he’s relying on the claimed attenuation and that his TX is 500mW. The antenna is an X50.
Harter Fell LD-028 is LOS to Brian’s QTH on The Wirral and the path length is around 80miles. Still a 53 report on 2m FM is not bad for just 16mW up the flue and corresponds to a theoretical 5000miles/watt. I’m wondering if there are any better QRPp activation/chaser records lurking?