Showing posts with label band plan. Show all posts
Showing posts with label band plan. Show all posts

13 Feb 2014

Return to 10m and rubbish band plans

I am concentrating on WSPR currently as it does not require me to use my voice, something I find very tiring with my stroke. Just a few sentences and I get quite exhausted. I am told this is to be expected and it should improve over time.

As 474.2kHz is quite quiet in the daytime, I have QSYed up to 10m where I have already been spotted in LZ, RA3,  DK, PA,  G,  GM and 4X  this morning at 2W. This afternoon, I expect the band will be open to the USA. and Canada.

If my voice was better I'd be trying 10m AM, which despite the absolute rubbish in recent IARU and RSGB band plans is still 29 to 29.2MHz. The band plans, surely written by non-users (?), shows 29-29.1 as for use by modes 2.7kHz wide or less. AM gets  a begrudged and confusing  throw away comment in the footnotes. Reading the band plans it reads as if AM on 10m never happens, whereas when the band is open I regularly hear and work (with real QRP)  stateside AM in the 10m AM window, mainly 29 - 29.1MHz. Sorry, but these poorly thought through band plans ANNOY me.

Why can't the 10m band plan reflect what ACTUALLY happens on the band? 28-29MHz is quite enough space for narrow band modes leaving AM where it is (and SHOUT THE FACT that AM exists and is a good  and fascinating mode on 10m), as well as space downlinks and FM  where they are now. Why do these know-alls have to interfere unless they actually understand what actually happens? Band plans are usually a good idea when they actually help. The current 10m band plan is plain WRONG in my view above 29MHz. Write to the RSGB, ARRL etc.. and tell them. AM is 5-6kHz wide NOT 2.7kHz or less and at 29-29.2MHz this is fine. Just damn well leave AM where it is please. Stop messing about!

I also feel it is daft having SSTV and FAX channels mentioned in the 2m band plan but AM only gets a (begrudged?) comment in a footnote. 2m AM is a minority interest but surely deserves a "centre of activity" spot on 144.55MHz so AM folk know where to gather? Ex-PMR AM gear is almost given away and AM gear is simple to build and test. When did YOU last hear a FAX station on 2m? At best, the 2m band plan is a mess. Either leave "special interest" channels out or add an AM CoA in please. AM is NOT the pox, but a good and useful mode!

RANT OVER,but these errors do get my goat.

UPDATE 1745z: lots of 10m WSPR spots this afternoon including plenty from across the pond and at good range:
The band closed transatlantic (for me) at 1840z, well after dark with copy of W8QYT. It may have been even later as my PC shut down the WSPR program after doing some updates!

5 Feb 2014

10m and 2m AM in band plans

I appear to be rapidly losing friends and think I am now effectively banned from the GQRP Yahoo Group.

Why? Because I have made public (GQRP , Dom Baines, the RSGB General Manager and a letter to RadCom) my view that 29 to 29.1MHz should remain the key 10m AM slot which it has been for YEARS and YEARS. I also believe the 2m AM centre of activity (144.55MHz) deserves more than a (begrudged, anti-AM?) foot note in the 2m band plan. To the RSGB it would appear AM is a dirty word.  If I am wrong on this I could be forgiven for thinking so judging by the negative AM comments in the 2m band plan and the total lack of understanding WRT 10m AM currently.

QRP AM rigs are easy to make, cheap to buy (ex-PMR AM rigs almost given away) and a good introduction to amateur radio. I do accept it is not for all.

I am sorry to be a pain, but the RSGB band plans make no sense WRT AM on 10m and 2m currently and I felt compelled to make my voice heard.

16 Jan 2013

Band Plans and AM - Feb 2013 RadCom

In the new February RadCom that just dropped on my mat at lunchtime there is a copy of the band plans for all bands from 136kHz to 134GHz.  What I fail to understand is why does the RSGB appear so anti-AM?

For many years now there has been a clear choice for an AM centre of activity on 144.55MHz. The RSGB has been made aware of this on many occasions and yet still we have a (begrudging) footnote, just about visible if you look hard, saying this is where to look. Even this comment ends with, "although this frequency is not officially recognised within the 2m band plan". Why not? We have a FAX calling frequency listed and goodness knows how many DV Internet Voice Gateway frequencies listed, yet we cannot be allowed an official AM centre of activity properly listed! AM is not a common mode these days, but those who enjoy the mode need to know where to meet on the band. The RSGB is giving no help at all here.

I also get frustrated with the 10m band plan where AM is again almost treated as a disease. Most AM activity has been in the 29.0-29.1MHz segment for years now: this is THE part of the band where AM users congregate, yet the all-mode section with up to 6kHz bandwidth does not start until 29.1MHz upwards! Does no-one who creates these band plans actually listen to see what actually goes on? In the last 30 years I have had many AM contacts on 10m and not one outside 29.0 - 29.1MHz.

So, next time you consider the band plans, please:

(a) Add an AM "centre of activity" frequency into the 2m band plan - it is 144.550MHz in case you don't know.
(b) Show 29-29.1MHz as the AM sub-band in the 10m band plan.