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RV63 - Out 145.7875 MHz - In 145.1875 MHz - 103.5 Hz ctcss (G).


GB3JB is funded solely by donations from its' users and supporters. There is no club or group to join and no annual membership fee. We rely totally on your good will.

The system is located in South Wiltshire, in IO81vc, and provides coverage across South Wiltshire, South Somerset and North Dorset, with specific areas such as the City of Salisbury, Salisbury Plain, the Blackmore Vale and Cranborne Chase being well within its range. Coverage also extends, for fixed stations, across most of central and parts of North Wiltshire, Southern Dorset and West Hampshire, plus parts of North and West Somerset. See coverage map.

GB3JB is an analogue voice repeater, with no internet linking, simple intuitive logic and no bells or whistles. The beacon sends callsign and locator. The invitation to transmit is a single dit.

To access the repeater, users must continually transmit a 103.5 Hz ctcss tone. There is NO 1750 hz tone burst capability.

The system timeout has been reduced to 3 minutes, so please set your rigs' TOT accordingly.

The simple rules for using GB3JB ....

(1) GB3JB is available for ALL Licensed Radio Amateurs to use, be they 'newly licensed' or an 'old timer'.

(2) All users of GB3JB are expected to operate their station within the terms of their specific licence conditions and restrictions.

(3) When in QSO, please wait for the invitation to transmit (a single dit), and always leave a pause between overs' - always give others a chance to call-in.

(4) Please use good operating practices and procedures. Mobiles have priority. Remember, if a station calls in, during the gap between overs', always acknowledge them and please DON'T leave them sitting on the side, while everyone else has an over.

(5) Only use the minimum power necessary - remember there are other repeaters on the same channel. The repeater only transmits with 25 watts ERP, so if its' 5/9 with you, you don't need to use 50 watts to a high gain vertical, when 5 or 10 watts will do. If you use 25 watts ERP, then the signals strengths should be reasonably reciprocal.

(6) If, under lift conditions, you wish to use another repeater on RV63, please turn off the 103.5 Hz ctcss tone, otherwise you will still access GB3JB.

(7) Remember that you are Radio Amateurs, using an Amateur Radio facility, so please use the appropriate operating practices and procedures.

Since you have taken the trouble to get an Amateur Licence, surely it's not to much to expect of you, that you use Amateur Radio abbreviation and accepted terminology, such as the Q-codes. We do not have a '20', we have a 'location' or 'QTH'. We do not have a 'personal', we have a 'name', etc., etc., If you still use CB, that's fine, no problem, BUT please leave the CB lingo for CB, and not when you use GB3JB or any other Amateur Radio facility or the Amateur bands.

and finally .....

(8) Ignore any idots - If you don't hear a callsign, do NOT respond - EVER !

Monday, 21 April 2008

Change of ctcss tone to 88.5hz - Update

Hi All,

This change will take effect on the 1st May. However, due to work committments, probably not till late afternoon or early evening.

As the regular users of GB3JB will have noticed, we have recently been suffering from interference from users of GB3PC, who put a strong signal into the 'JB' site and are splattering across the 'JB' input frequency, presumably as a result of not having a narrow deviation capability on their equipment.

Because GB3PC has the same ctcss access tone as GB3JB, this has resulted in our repeater opening up at various times, and retransmitting the splatter along with the invitation to transmit tone, for, in some cases, significant periods of time.

We can obviously do nothing with regard to the stations splattering across the 'JB' input, other than to perhaps ask all operators to switch to narrow a deviation setting, if their equipment has that option.

Therefore, following on from communications with our zone manager on the ETCC, in an attempt to reduce the potential for interference, and to stop 'JB' opening up, as described above, we have decided to change the ctcss tone that is required to access 'JB', from it's current 71.9 hz, to 88.5 hz. Obviously the tone transmitted by the repeater will also change to this new frequency.

In addition to emailing this information to all on the blanket email update list, we will be adding it to the web site. The ETCC will also be changing the data on the "ukrepeater.net" web site. However, it would be appreciated if this could be mentioned to all those that you work via 'JB' and / or simplex, in the intervening period, as there are more users of 'JB' than we have on the email list.

It would also be appreciated, if those associated with radio clubs etc., within the 'JB' coverage area, could bring this information to the attention of their members.
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