[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][JAMSAT Home]

[jamsat-bb:14589] AMSAT Phase3-Eのトランスポンダ周波数プラン


JJ1WTK 坂本です

 今日届いたAMSAT-UKの会報 OSCAR NEWSに、製作が進んでいる AMSAT Phase3-E
衛星のトランスポンダ周波数の最終的な案について DB2OS, Peter が書いた記事が
掲載されていましたので、紹介します。

47GHz帯のことは、Rバンドと言うんですね..知らなかったです..




P3E 周波数案 (DL6DBN, 03-10-01) 第4次案
----------------------------------------

	GB  ジェネラルビーコン
	EB  エンジニアリングビーコン
	PB  パスバンド
	RUDAK  (読みはル−ダック)マルチモードのデジタル中継器

29MHz Uplink (A)
---------------
RUDAK:	29.500 +/-  5 kHz (multi-mode, low-speed)
PB:	29.325 +/- 25 kHz (linear)

145 MHz Downlink (V)
------------------
GB:	145.812 (PSK 400b/s)
EB:	145.957 (PSK 400b/s)
RUDAK:	145.837 (multi-mode, low-speed)
PB:	145.845 to 145.948 (linear)

435 MHz Uplink (U)
-----------------
RUDAK:	436.200 to 436.350 (multi-mode)
PB:	436.020 to 436.150 (linear)

1260 MHz Uplink (L1)
-------------------
RUDAK:	1268.775 to 1268.925 (multi-mode)
PB:	1268.600 to 1268.750 (linear)

1260 MHz Uplink (L2)
-------------------
RUDAK:	1260.275 to 1260.425 (multi-mode)
PB:	1260.100 to 1260.250 (linear)

2400 MHz Downlink (S)
--------------------
GB:	2400.250 (PSK 400 b/s)
EB:	2400.500 (PSK 400 b/s, high speed option)
RUDAK:	2400.600 to 2401.000 (muilt-mode, low/high speed)
PB:	2400.275 to 2400.425 (linear)

5650 MHz Uplink (C)
-------------------
PB:	5668.600 MHz +/- 25 kHz (linear)

24 GHz Downlink (K)
----------------------
PB:	24048.300 MHz +/- 25 kHz (linear)
Beacon:	24048.350 MHz

47 GHz Downlink (R)
-------------------
PB:	47088.300 MHz +/- 25 kHz (linear)
Beacon:	47088.350 MHz

2450 MHz Uplink (S) - 10450 MHz Downlink (X)
---------------------------------------------
TBD
This is the P5A experimental coherent transponder.
It will need a fix frequency relation for coherent
mode and appr. 2 MHz bandwidth for ranging mode.
It will be configurable as linear transponder too
with approximately 50 kHz passband width.

-------------
JAMSAT BB Mailing List
http://www.jamsat.or.jp/infoserv/mlist.html