Re the previous e-mail, which I am not sure got reflected, the guidelines
for SRP applicants can now be viewed at 

http://www.rsgb-spectrumforum.org.uk/ofcom_501kHz_%20srp.htm

73 John, G3WKL
RSGB HF Manager



-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of John W Gould
Sent: 10 March 2007 08:35
To: [email protected]
Subject: [rsgb_lf_group (Moderated)] Guidelines for 501kHz SRP applications.
{01}


Following a review of the process that took place for the initial
applications it's been agreed that I can issue the following guidelines onto
the Spectrum Forum website.  

I've put this in an e-mail to the reflector (apologies for non-UK members)
as the Spectrum Forum web-server seems not to be working this morning.  It
took the upload of the new pages, so the FTP interface is working, but the
HTML interface is down.


Recommendations in considering and completing an application for the SRP 

Ofcom's SRP form is a generic form to cover a range of possible research
reasons that require operation outside the terms of the Amateur FULL
Licence.  For this particular application it is important that prospective
applicants consider the following and ensure that they follow the
recommendations re RFI assessment and include information on the following
points in their completed SRP form, either on the form itself or through
attaching additional sheets:  
a) some form of research reason that confirms that the person is really keen
to use the NoV;  
b) an explanation of experience at LF/MF, e.g. 73 or 136kHz experience or
equivalent as a marine officer.  Where 73/136kHz experience is lacking an
explanation as to why the desired experience cannot be gained on 136kHz
first, and perhaps any alternative design, construction or operating
experience that is thought to be relevant;  
c) an explanation as to how one is proposing to determine frequency and
measure the e.r.p. of the station.  
d) Whilst the standard SRP form requires a RFI field-strength assessment to
be made at the property boundary and at the nearest neighbour's premises the
nature of the long-wavelength at 501kHz makes this a difficult task for
those where the boundary or the neighbour's premises are within 100m (which
is termed the near-field zone, see here for further information).  Because
of Ofcom's limitation with respect to e.r.p. of -10dBW it is recommended
that the distances be filled in on the SRP form, but that the applicant
undertakes no detailed assessment, but in operation, must ensure that
interference will not be caused to other users of radio or electronic
equipment.  For those applicants where the boundary/neighbour is within 5m
of any part of the aerial a scaled plan-view sketch of the proposed aerial,
with boundaries and neighbour's premises shown, must be submitted along with
the SRP application.  
Note:  

Potential licensees should be aware that in all frequency bands, high
intensity RF radiation may be harmful and safety precautions should be
taken, particularly in locations to which people have access. Advice
concerning safe levels of exposure to RF radiation is provided by the Health
Protection Agency. 

73 John, G3WKL
RSGB HF Manager