----- Original Message -----
Sent: Friday, August 01, 2008 1:27
AM
Subject: Re: LF: Re: 500KHz NoV
Dennis,
Don't worry about operation on vlf, I think
you find the band acts more like top band , with a well defined service area
~60/ 70 miles and a first skip round 200/250 , I can see a trace at Birmingham
with 500mW to my antenna , only real problem is the dreaded deep fade 'qsb'
whic takes the signal out 30 seconds up to 1 minuet + , which causes
havoc with rtty , as you have no idea if the other station copied anything
.... dont suppose you have amtor ?
I doubt you will cause any interference
with those power levels , I ran 20 watts to a inverted L 40
ft x 40 ft for a long time , which radiated quite well , but after adding a
top loading coil found it worked a lot better , with 150 watts and a new
variometer tuner , still didn't record any problems ..
Had more problems with the pc jamming the
incoming signals and a funny long life bulb that radiated a well spaced
spectrum across the band ! check out the pages on the google
uk500khz web news group for links to the grabbers etc .
73 's
Graham ..
G0NBD
Sent: Thursday, July 31, 2008 9:52 AM
Subject: LF: Re: 500KHz NoV
Hi Lee
I have just got my NOV to operate on 500kHz, so
will be dipping my toe into the water from next week.
I have not got any 138kHz experience and only
obtained my full amateur licence last May.
On my application for the NOV, I provided a
scale diagram of my own and immediate neighbour's properties, gave a
brief description of the TX(home brew), RX(Lowe HF-225) and antenna(T)
that I intend to use and an estimate of my erp from the TANTENNA program
on the internet (200mW). As I am using a VFO, I use a counter to measure
the frequency and also monitor transmissions using the RX which has a digital
readout. I also stated that I would cease transmissions until any
complaint was satisfactorily resolverd, and mentioned two nearby amateurs also
working on 500kHz whose help and advice I could seek.
All the above seemed to work, so good luck on
your application. The more the merrier.
73 Dennis M0JXM
----- Original Message -----
Sent: Tuesday, July 29, 2008 5:50
PM
Subject: LF: 500KHz NoV
Hi All,
After reading through loads of
stuff and monitoring the LF Group I?m left with the decision of whether to
start on 136 or 500KHz.
500KHz seems much easier to deal
with from the outset, and hopefully the NoV period will be extended further
next year.
However the NoV itself is the
possible stumbling block in that it appears that experience on 136KHz is a
big plus that Ofcom appear to be looking for,
My question is, would I get away
with applying for a NoV without first being active on 136KHz, or has anyone
already taken this route and been successful?
73,
Lee M0LMH.
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