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- Hello to all beginner HF packet ops,
- I thought I would write a note with a few suggestions for general HF
- packet operation.
- There have been a few problems on some of the HF packet frequencies lately
- because of some stations being apparently unaware of some of the basics
- of HF packet operation. Some of these basics are obvious, some are things
- we don't think about unless they come up from problems we might have
- in HF operation.
- One point that is very basic but is sometimes overlooked, is that the
- frequency spacing on HF packet on 10,15,20 meters esecially, should be
- 2 KHz, i.e., 28.103, 28.105, etc. If one operates on 28.102, it will interfere
- with 28.103. This may sound simple but take a listen on 10 meters on a
- Saturday!
- PACLEN on HF should be short for 300 BAUD work, 24 to 40. MAXFRAME of
- 1 works well. FRACK of about 4 - 6 is usually OK. DWAIT of 200 - 400 msec
- is a polite range. Remember, the chances of getting a short packet through
- on a crowded HF freq are much better!
- In general, although there are certainly a lot of very interesting HF
- BBS' around, such as 3B8FP on 10 meters, it is probably a good idea
- NOT to browse around HF BBS' the way you would on your local VHF system.
- Log in and enter your information (N,NQ,NZ,NH etc) but avoid downloading
- bulletins unless u know what u are looking for, because most HF BBS', at
- least stateside, have similar stuff on 'em. (there are always exceptions).
- I always log into new HF BBS' that I see so the BBS will have my info
- for its users. I NEVER do a plain "L" or "LB" command, because chances are
- that I would be asking the BBS to list upwards of a hundred messages, which
- would cause a timeout for sure!
- Certain frequencies on HF are considered by some to be "reserved" for BBS use.
- 14.107, 14.109, 14,111, 14.098, 10.147, 10.149, 28.109, 28.113 are among them.
- This is not a RULE! It does not mean we are supposed to stay off these freqs
- but we probably should avoid having regular QSOs there as it can interfere
- with forwarding (of the stuff that ends up on our local VHF BBS'!).
- Use your judgement and things will go smoothly. Good frequencies for QSOs
- are: 14.105 ( lot of gateways),14.103, 14.101, 28.099, 28.101, 28.103,
- 28.105 (lot of open BBS, DX stations), 21.103, 21.101, etc.
- You can find 1200 BAUD packet on 28.180, 28.185, 28.190, 28.200 (notice
- 5 KHz spacing). Set your TNC as though u were going to work VHF (VHF ON,
- HBAUD 1200, for PK232, e.g.). Tuning is tricky without a special tuning unit
- but with a little practice it is not too bad.
- Many nodes and interesting gateways are found on 14.105, 28.105, 21.101 and
- you can work some interesting DX on these bands. I have worked 6W, 3B8,
- CE0, HC8, A45, 5B4, ZS3, TU2, TF3, FM5, 9Y4, VK3, and many others, just in
- the few times I have QRXed my BBS to use my TNC for more fun stuff!
- I hope this basic infomation is of use to anyone who is new to HF packet.
- Enjoy the bands!
- 73, Chuck SYSOP @ WA1IIE.ME.USA.NA 145.03, 10.147, 28.109
-