Dear All,
Under the tutillage and guidance of G3XIZ, we are planning to build
the kit necessary for an initial “trans-biggleswade” QSO (3km) and then plan
for a later attempt at M0BMU (39km) and G3XBM (32km) from our QTHs, NOVs
permitting of course!
Jim/Roger we will keep you posted as to when we are going to fire
up the TXs (post NOV)
Chris (XIZ) will be using a modified (initially 500khz) home brew
TX capable of 150w+ and I will be planning to use a 70w audio amp for the first
3km attempt.
RXs will be tuned loops and longwires direct into
SpecLab/Winrad. I will also press my W & G SPM 19 into service and
try to use the PS60 as an exciter in addition to the Farnell sig gen.
TX antennas will be the existing units at G3XIZ/G7NKS for LF/MF
with new coils for which the designs will be shamelessly pirated from Horst and
Markus’ designs of 480 turns x 7 mounted on interleaved plastic waste bins from
the local poundshop (everything a Euro for our EU colleagues!).
A large of reel of 0.2mm wire has found its way into our possession
also.
I’m also looking if anyone knows anyone who can repair a Racal Dana
9084 sig gen. I have one but it is out of PLL lock. I have
followed Alan Melia/Mike Dennison’s advice (Thanks Alan & Mike) to check
all the internal connections and board seating but this has not improved
it. Any volunteers or nominations would be gratefully received as
it is a lovely bit of kit and it would be a shame to have to scrap it.
If I can get it going again it will make a fine exciter for my 136 rig up
too.
Best 73s and see you on the grabber soon (Ofcom permitting!)
Jim G7NKS
