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
