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 23cm ettiquette 
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Post 23cm ettiquette
Hello all,

Thanks to this fantastic site I have been able to acquire a 23cm transverter and a 1296mhz 23 element beam, enabling my first proper foray into the 23cm band.

The transverter covers 1296-1298 and so I imagine it won't be a good idea to try accessing a repeater as the input is 6mhz down and so outside the operating range of the transverter.

I've had a look at the band plan and I just need a few things clearing up. Say I set up on mow cop (300m asl) and want to put a call out, what are the accepted calling frequencies for FM and SSB? Am I likely to find anyone to talk to? Also what frequencies are used for the UKAC?

Thanks

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Jake
Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Fri Jan 02, 2015 2:43 pm
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 23cm ettiquette 
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Post Re: 23cm ettiquette
1296.200 MHz Narrow band centre of activity (SSB general calling frequency (on USB of course))

FM/DV Simplex (Note-5)(Note-6) 25 kHz spacing
1297.500-1297.750 MHz (SM20-SM30)


I don't use FM, be that simplex or repeaters, (my 23 cms setup consists of an SSB only 2 meter transceiver coupled to a transverter), but would imagine SM20 at 1297.500 to be a safe bet for FM Simplex calling!

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Dave G0BHD.


Fri Jan 02, 2015 2:50 pm
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 23cm ettiquette 
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Thanks Dave. I thought as much but better to check first! Itching to try the gear out. Even if I don't get anyone on the band, I have others I can use whilst up there so no wasted trip.

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Jake
Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Fri Jan 02, 2015 2:58 pm
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 23cm ettiquette 
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fakejake wrote:
Thanks Dave. I thought as much but better to check first! Itching to try the gear out. Even if I don't get anyone on the band, I have others I can use whilst up there so no wasted trip.

If you have no joy, plan another trip on a 23 cms contest day, the SSB portion will no doubt be quite active then! :good:
Keep your eyes on this thread section, Tony (GW8ASD), posts the contests and cumulatives dates for 23 cms regularly! :good:
Good fun 23 cms, I wish you all the best mate!

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Dave G0BHD.


Fri Jan 02, 2015 3:00 pm
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 23cm ettiquette 
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I plan on doing 2m/70/23cm UKAC quite a bit this year. I did the last 2m one of 2014 with only a 3 ele and was impressed with the results.

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Jake
Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Fri Jan 02, 2015 3:34 pm
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 23cm ettiquette 
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Post Re: 23cm ettiquette
I've worked the odd FM station during the contests.
About a dozen in total, since 2004, but none for the last four years, primarily because activity has increased so there's generally plenty to work on SSB.
Add to that the fact I had few FM contest contacts in excess of 70km it made sense to concentrate on SSB.
Strangely, my one FM contact outside the UK was 740km. :shock:
Not in a contest as it happens.

If you look at the claimed scores http://www.rsgbcc.org/cgi-bin/claim.pl?Contest=1.3GHz%20UKAC&year=2014 you will get a feel for how activity is distributed, and the sort of distances that can be regarded as normal.

As regards contacts, outside of the contests, you will appreciate that many regulars are active on several VHF/UHF/microwave bands.
Often with common transverter drivers.
So random calling will be a bit hit and miss due to us doing other things, beaming the wrong way (beamwidths tend to be very narrow), etc.
The best approach is to be equipped with other bands, and have access to KST for real time sked arranging.
Also pre warn people if you are going to be on.

If you intend to be portable there's a new joint incentive, between the UK Microwave Group and SOTA, to promote SOTA activity on the microwave bands.

Joining the UK Microwave Group could also be helpful.
At the grand cost of Ā£6 per annum you get a newsletter every month, with interesting technical articles, access to advice and test equipment, plus Chipbank - our access point to small numbers of some surface mount devices, at no cost. :thumbsup:
No need to buy 100 when you need 2. :)

Cheers

Tony

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Fri Jan 02, 2015 4:34 pm
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 23cm ettiquette 
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Post Re: 23cm ettiquette
Believe there's also 10ghz and 5.7ghz transverters to loan if your a member ....
Hopefully will get my 10ghz system up on the mast this month to see what I can work from home..

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Experimenting with 160 80 60m

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Fri Jan 02, 2015 5:05 pm
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 23cm ettiquette 
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Thanks all,

I tend to be equipped with 4m, 2m and 70cm at least when I go portable. I'll have to sign up for the Kst chat. I'll post on here and elsewhere when I plan to go up.

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Jake
Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Fri Jan 02, 2015 5:33 pm
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 23cm ettiquette 
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G4HTZ wrote:
Believe there's also 10ghz and 5.7ghz transverters to loan if your a member ....
Hopefully will get my 10ghz system up on the mast this month to see what I can work from home..

There are indeed.
The 5.7GHz unit is up in Scotland, and the 10GHz is down South, at the moment.
I'm the keeper of the 10GHz unit, so it will come back to North Wales when it's available again.
Whoever borrows it will need to supply their own FT817.

http://www.microwavers.org/

Cheers

Tony

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Fri Jan 02, 2015 6:33 pm
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 23cm ettiquette 
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Thanks to the KST chats and G3UVR, I now know that my transverter and yagi are working. 59 reports both ways between Mow Cop and the wirral. And then the freezing thick fog arrived and froze everything up! brrrr!

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Jake
Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Sun Jan 04, 2015 10:26 pm
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I gave you a shout on KST but suspected you had already left . barry


Sun Jan 04, 2015 10:52 pm
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ah yes, I think at that time I had taken the mast and antenna down as it was starting to get dark and the freezing fog wasnt too inviting. I stayed up there chatting away on 2m FM in the car for a few hours. Much warmer when the window doesnt have to be open to let the RG213 in! I'll be up there again at some point so I'll announce my plans on KST and here.

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Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Sun Jan 04, 2015 10:55 pm
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Hi Jake

Well done on getting active, I'm glad the system went to someone who'd actually be using it :thumbsup:

I did check the tvtr before sending it up, and the frequency should have been pretty much spot on for you.

73 & hope to work you soon

Kelvin

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Mon Jan 05, 2015 9:08 am
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 23cm ettiquette 
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Hi kelvin

It was off by about 5khz but I was told on air that it's normal for these transverters. The guy I was talking to had the very same model! What i did was change the transverter display on my radio to compensate, so my radio will display 1296.200 but output 144.195. Another thing is that my radio is slightly out too! By about 500hz. It's noticeable on 2m ssb. Oh well!

I think it will get most of its use during the UKAC. Though I'm going to miss the first one this year (2m) due to work.

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Jake
Monitoring 2m simplex, GB3CR & GB7HM(DMR)


Mon Jan 05, 2015 12:30 pm
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fakejake wrote:
Hi kelvin

It was off by about 5khz but I was told on air that it's normal for these transverters. The guy I was talking to had the very same model! What i did was change the transverter display on my radio to compensate, so my radio will display 1296.200 but output 144.195. Another thing is that my radio is slightly out too! By about 500hz. It's noticeable on 2m ssb. Oh well!

I think it will get most of its use during the UKAC. Though I'm going to miss the first one this year (2m) due to work.

Hello Jake, well done on breaking your duck and dabbling on 23cms portable! :good:
What transverter is it, a Microwave Modules by any chance?
If so, yes they can be a little off, and shift as the temperature changes, I have one myself, if thats what you are using.
I calibrated mine to be accurate after a short switch on warm up period, and fitted an Xtal clip on heater which helps with stability.
I do the same as you, adjust the transceiver display to compensate when necessary, and leave well alone now its settled.
Good luck with your future portable ventures mate! :good:

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Dave G0BHD.


Mon Jan 05, 2015 12:39 pm
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