下面是我收集到的一些关于irc/gs的信息,希望对大家有帮助:
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the chart i'm keeping looks like this:
irc= the number of irc's the local postoffice requires to mail
 a envelope containing a qsl to usa.
greenstamps= amount rounded up to next dollar(us) required to mail
 a envelope containing a qsl to usa.
eur= amount required to mail a envelope from a eec country to usa.
country          irc       gs             euros      source      date       notes
aland is         1          1                        oh1boi      10/8/99
argentina        1          2                        lu6ef       12/6/02    15
australia        1          1                        vk4dx       11/30/02   3          
austria          1          1             1.09/20gm  oe1002419   06/20/02      
belarus          1          1                        eu7sa       10/8/99
belgium (surface)1          1                        on8am       10/10/99
belgium (air)    2          2                        on4ant      10/22/99   7                  
brazil           1          1                        pt7wa       10/10/99
bulgaria         1          1                        lz1pi       07/22/00   12
canada           1          1                        va3rj       09/24/02
cambodia         not valid  1                        xu7abn      12/29/01
china            1          1(prefered)              ba4rf       12/21/01
columbia         1(only new)2                        hk3axy      11/27/02   14
costa rica       1          1                        ti2dll      01/10/01
croatia          1          1                        9a5zz       09/30/02       
cyprus           1          1                        5b4afb      10/21/99       
denmark          1          1                        oz4el       07/10/01       
easter is        1          2                        xq0yaf      10/10/99
finland          1          1                        oh1boi      10/8/99
france           1          1                        f5aja       10/10/99
germany>usa      1          2              1.53/20gm dl6kac      06/19/02
germany>europe   1          1              0.56      dl6afg      06/20/02              
great britain    1          1                        g4jfs       10/8/99
hungary          1          1                        ha0du       10/19/99
italy            1          1              0.77      in3njb      06/19/02   9           
india            1          (illegal)                            06/27/00   11 
japan            1          1                        ja2adn      10/22/99   8
kuwait           1          1                        9k2ub       10/21/99   6              
lebanon          not valid  1                        od5pl       10/18/99   5
luxembourg       1          1                        lx1no       06/27/00   10       
netherlands>usa  2          1              0.75/20gm pa9jj       06/09/02
netherlands>euro 1          1              0.56      pa9jj       06/20/02  
netherland-
antilles > us/eu 2          2                        pj2mi       04/05/02
         > ja    3          2                        pj2mi       04/05/02
new caldonia     1          2                        fk8vhn      06/30/00
new zealand      1          1                        zl2al       10/20/99
philippines      1          1                        du1odx      10/10/99   4
norway           1          2               2.0      la5we       06/19/02
poland           1          1                        sq9fvr      04/05/02
portugal         1          1                        ct1eat      10/20/99
romania          1          1                        y03ctk      10/19/9l
russia, e & a    1          1                        ua6lu       10/7/99
s africa         2          1                        zs6ez       02/8/00
scotland         1          1gs/10gm-2gs/20gm        gm4fdm      07/06/02 
spain            1          1               0.76     ea5rm       01/07/03
sri lanka        1          1                        4s7da       10/8/99
sweden           1(prefered)1                        sm5dqc      06/10/02
switzerland      2          1 priority b             hb9hfn      01/13/01   1
switzerland      2          2 priority a             hb9hfn      01/13/01   2
uruguay          1          2                        cx3al       10/10/99
venezuela        2          2                        yv1dig      12/21/01   13
notes:
1. priority b is a white envelope, air mail but slower than priority a
2. priority a is a air mail envelope.
3. mike, vk4dx reports 1 gs is ample for australia to anywhere in 
the world. exchange rate is now $us.56 to the australian dollar..
4. manila post office will exchange irc's. outlying post offices will not.
5. irc's are not accepted in lebanon
6. an irc in kuwait is only accepted if it is new and clearly stamped and 
the country name is shown clearly, otherwise not accepted.
7. on4ant reports 1 irc is good for surface rate and 2 irc's are needed
for air mail postage which is 34 belgian francs.
8. air mail postage from japan is 110 yen. at todays exchange rate $1 us 
is not quite enough.
9. a gs is sufficeint for postage with slight surplus to offset qsl printing.
a irc is sufficeint for postage only.
10. luxembourg has only one type of service, no such thing as surface or air mail.
11. irc's only. india does not allow possesion of green stamps.
12. irc's are not available in bulgaria. only source is from dxer's who send to
bulgarian hams. also attempting to purchase irc's via mail using gs's is risky.
13. $2us is good to all desitnations but 3 irc's needed for asia & oceania
14. old (small) irc's are no longer accepted in columbia. large only.
15. present rates require $4.50lu/20grm to usa & $5.20lu/20grm to rest of world.
a couple of foreign hams remind us to check the exchange rate.
sometimes $1 us is less than postage, sometimes it's more.
also, sometimes the foreign ham has to pay a fee to exchange gs's
for the local currency. this fee is frequently more than the gs!
i cannot guarantee the accuracy of the chart other than to report information 
received from hams in the country they are reporting on.