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Call Sign : 26-CT-3550 Ham:- M7DEW Posts : 90 Times Thanked : 3 Join date : 2019-08-14 QTH or Location : Huddersfield West Yorkshire. UK Equipment Used : Yaesu FT-991A. Stryker HP-955. CRT SS 6900n. CRT Micron Age : 65
Subject: Band width setting for PMR channels Mon Aug 10, 2020 8:18 pm
Hi all, hope you're all doing O. K. I've noticed a lot of activity recently, so I've just programmed all the 16 analogue PMR channels into my CRT MICRON, so I can use the scan function. I'm wanting to know which Bandwidth setting to use? Choices are:- Wide = 25K Mid = 20K Narrow = 12.5K
Cheers and thanks in advance. Stay safe Dale CT3550
Alan - Mirror Man, keithgriffin1962 and Salvage1 like this post
Victor CT Directors
Call Sign : 26-CT-3228 / M7VIC Posts : 6292 Times Thanked : 389 Join date : 2019-11-10 QTH or Location : Bedford Equipment Used : Various
Subject: Re: Band width setting for PMR channels Mon Aug 10, 2020 8:41 pm
Hi Dale,
The channels are spaced 12.5khz apart on the analogue 16 channels and the modulation mode is NBFM, (Narrow Band Frequency Modulation - 2.5khz deviation)
I think that's what you're after?
All the best, Victor
keithgriffin1962 likes this post
Templar Contributor
Call Sign : 26-CT-3550 Ham:- M7DEW Posts : 90 Times Thanked : 3 Join date : 2019-08-14 QTH or Location : Huddersfield West Yorkshire. UK Equipment Used : Yaesu FT-991A. Stryker HP-955. CRT SS 6900n. CRT Micron Age : 65
Subject: Re: Band width setting for PMR channels Mon Aug 10, 2020 9:14 pm
Hi Victor, thanks for the reply. Yes, it seems logical that with 12.5khz spacing that the bandwidth is the same, but you never know. I'm sure someone will be along shortly with a confirmation or the right information. I'm new to this pmr stuff but quite frankly I'm having a lot of fun listening so I thought I'd put together a more permanent setup, together with a better antenna. It's really very active around here and the additional channels that Ofcom gave us are lively without the usual kids playing about. I guess they only have the 8 channel models. I'm surprised at how clear and clean the received modulation is too, much less interference than on the 27Mhz. I don't know why I didn't have a go with this sooner. Anyway stay well mate. 73's Dale P. S. Can anyone confirm Narrow setting - 12.5k.? Cheers
keithgriffin1962 likes this post
Red Fox Senior contributor
Call Sign : 108-CT-255 Posts : 157 Times Thanked : 17 Join date : 2020-04-24 QTH or Location : Fife Scotland Equipment Used : Squawk Boxes & Wires - Both Annoy the other half :)
Subject: Re: Band width setting for PMR channels Mon Aug 10, 2020 9:35 pm
Call Sign : 26-CT-3550 Ham:- M7DEW Posts : 90 Times Thanked : 3 Join date : 2019-08-14 QTH or Location : Huddersfield West Yorkshire. UK Equipment Used : Yaesu FT-991A. Stryker HP-955. CRT SS 6900n. CRT Micron Age : 65
Subject: Re: Band width setting for PMR channels Mon Aug 10, 2020 10:13 pm
Cheers for that Graeme. Interesting website. Going to program all the channels with the narrow band setting.
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Subject: Band width setting for PMR channels 
