INTERMEDIATE LESSON 4logomidi2.gif

             
LEARNING  OBJECTIVES and NOTES
Implementing the Licence
2f.1 Recall that transmissions from the station must not cause undue interference to other radio users.
It is important when an Amateur transmits not to cause undue interference to other radio users. I.e. other amateur or professionals.

2f.2 Recall that the Licensee must reduce any emissions causing interference, to the satisfaction of a person authorised by Ofcom. Understand that this may include a reduction in transmit power or any other action required to reduce emissions to an acceptable level.
If Ofcom or their representatives become involved you may be told to reduce the power of any transmissions causing interference or to take other action such as fitting appropriate low pass filters. This should reduce emissions to an acceptable level.
2f.3 Recall the Licensee must carry Licensee’s details and revocation
A licensee must carry the Licensee's details and details if the licence has been revoked. This is best achieved by carrying the paper licence and any notice of revocation when operating away from home and having the licence and any notice of revocation  at hand when operating from home.
2g.1 Recall that the Licensee must give immediate notice to Ofcom of any change to the Licensee’s name, Main Station Address or mailing address.
Recall that the licensee must confirm that the details shown on the licence remain valid at least once every five years.
Recall that the licence can be revoked by Ofcom for breaches of licence conditions or for non-confirmation of licence details.
Licence schedule
If you change your name, main station address or mailing address you must inform Ofcom immediately.

At least once every five years a licensee must confirm that details on the licence are correct. This can be done online.

The licence can be revoked by Ofcom for a breach in your licence or if you fail to confirm your licence details every 5 years. There are many ways in which you could breach your licence. That is why you must know and understand the terms of the licence.

2h.1
(HF) VHF)
Apply the schedule to the Intermediate licence.
A copy of the schedule will be available during the examination.
The schedule is a table showing the bands you can operate on, the power levels and mode that can be used and information about specific restrictions.

You will be provided with a copy of this at the start of the intermediate examination and questions will be based on this schedule.

Apply the schedule to the Intermediate licence
Frequency Bands
(in MHz)		 Status of allocations in UK to
the Amateur Service		 Status of allocations in UK to
the Amateur Satellite Service		 Maximum Peak Envelope
Power level in Watts (and dB
relative to 1 Watt)
0.1357-0.1378 Secondary. Available on the
basis of non-interference to
other services inside or outside
the UK.		 Not allocated 1W (0 dBW) e.r.p.
1.810-1.830 Primary. Available on the basis
of non-interference to other
services outside the UK.		 Not allocated 50W (17 dBW)
1.830-1.850 Primary Not allocated 50W (17 dBW)
1.850-2.000 Secondary. Available on the
basis of non-interference to
other services inside or outside
the UK.		 Not allocated 32W (15 dBW)
3.500-3.800 Primary. Shared with other
services 		Not allocated 50W (17 dBW)
7.000-7.100 Primary Primary 50W (17 dBW)
7.100-7.200 Secondary. Available on the
basis of non-interference to
other services inside or outside
the UK.		 Not allocated 50W (17 dBW)
10.100-10.150 Secondary Not allocated 50W (17 dBW)
14.000-14.250 Primary Primary 50W (17 dBW)
14.250-14.350 Primary Not allocated 50W (17 dBW)
18.068-18.168 Primary Primary 50W (17 dBW)
21.000-21.450 Primary
Primary 50W (17 dBW)
24.890-24.990 Primary
Primary  50W (17 dBW)
28.000-29.700 Primary Primary 50W (17 dBW)
50.00-51.00 Primary. Available on the basis
of non-interference to other
services outside the UK		 Not allocated 50W (17 dBW)
51.00-52.00 Secondary. Available on the
basis of non-interference to
other services inside or outside
the UK		 Not allocated 50W (17 dBW)
70.00-70.50 Secondary. Available on the
basis of non-interference to
other services inside or outside
the UK		 Not allocated 50W (17 dBW)
144.0-146.0 Primary Primary 50W (17 dBW)
430.0-431.0 Secondary Not allocated 40W (16 dBW) e.r.p.
431.0-432.0 Secondary.Not available for
use within 100km radius of
Charing Cross, London
(51°30’30’’N, 00°07’24’’W)		 Not allocated 40W (16 dBW) e.r.p.
432.0-435.0 Secondary Not allocated 50W (17 dBW)
435.0-438.0 Secondary Secondary 50W (17 dBW)
438.0-440.0 Secondary Not allocated 50W (17 dBW)
1240-1260 Secondary Not allocated 50W (17 dBW)
1260-1270 Secondary Secondary.Earth to space only 50W (17 dBW)
1270-1325 Secondary Not allocated 50W (17 dBW)
2310-2400 Secondary Not allocated 50W (17 dBW)
2400-2450  Secondary.Users must accept
interference from ISM users.		 Secondary. Users must accept
interference from ISM users.		 50W (17 dBW)
3400-3475 Secondary Not allocated 50W (17 dBW)
5650-5670 Secondary Secondary. Earth to space only 50W (17 dBW)
5670-5680 Secondary Not allocated 50W (17 dBW)
5755-5765 Secondary. Users must accept
interference from ISM users		 Not allocated 50W (17 dBW)
5820-5830 Secondary. Users must accept
interference from ISM users.		 Not allocated 50W (17 dBW)
5830-5850 Secondary. Users must accept
interference from ISM users.		 Secondary. Users must accept
interference from ISM users.
Space to Earth only.		 50W (17 dBW)
10000-10125 Secondary Not allocated 50W (17 dBW)
10225-10450 Secondary Not allocated 50W (17 dBW)
10450-10475 Secondary Secondary 50W (17 dBW)
10475-10500 Not allocated Secondary 50W (17 dBW)
24000-24050 Primary. Users must accept
interference from ISM users		 Primary. Users must accept
interference from ISM users		 50W (17 dBW)
24050-24150 Secondary. May only be used
with the written consent of
Ofcom. Users must accept
interference from ISM users		 Not allocated 50W (17 dBW)
24150-24250 Secondary Not allocated 50W (17 dBW)
47000-47200 Primary Primary 50W (17 dBW)
75500-75875 Secondary Secondary  50W (17 dBW)
75875-76000 Primary
Primary 50W (17 dBW)
76000-77500  Secondary
Secondary 50W (17 dBW)
77500-78000 Primary 
 Primary 50W (17 dBW)
78000-79000 Secondary 
 Secondary 50W (17 dBW)
79000-81000 Secondary 
 Secondary 50W (17 dBW)
122250-123000 Secondary Not allocated 50W (17 dBW)
134000-136000 Primary 
 Primary 50W (17 dBW)
136000-141000 Secondary
Secondary 50W (17 dBW)
241000-248000 Secondary
Secondary 50W (17 dBW)
248000-250000 Primary
Primary 50W (17 dBW)

Here is a copy of the Schedule for Intermediate licence holder.

Answer these questions in order to understand how the Schedule works.

1. The Intermediate Licence usually allows a maximum power of 50W. Which bands or sections of bands do not allow 50W?

2. What is the difference between a primary and Secondary allocation?

3. Which frequencies may be used  by some amateurs, but not those living  within 100Km  of Charing Cross

4. Can satellites be used on frequencies between 50.1 and 50.2 MHz?

5. What is the lowest frequency band on which  an Intermediate Licensee can operate?