![](https://ae01.alicdn.com/kf/HTB1.mEyIFXXXXaYXXXXq6xXFXXX2/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1ry3yIFXXXXaQXXXXq6xXFXXXM/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1ZQ7fIFXXXXcvXVXXq6xXFXXXE/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1G2QzIFXXXXX2XXXXq6xXFXXXN/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) aHR0cDovL2ZyZWVzaGlwLmNvLmty![](https://ae01.alicdn.com/kf/HTB1.mEyIFXXXXaYXXXXq6xXFXXX2/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1ry3yIFXXXXaQXXXXq6xXFXXXM/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1ZQ7fIFXXXXcvXVXXq6xXFXXXE/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1G2QzIFXXXXX2XXXXq6xXFXXXN/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg) ![](https://ae01.alicdn.com/kf/HTB1uBUAIFXXXXXLXXXXq6xXFXXXl/2-rda1846s-1-w-3-5-km-5-km-vhf-uhf-sa818.jpg)
- ºê·£µå À̸§: G-NiceRF
- µð½ºÇ÷¹ÀÌ: ¾Æ´Ï´Ù
- ¸ðµ¨ ¹øÈ£: SA818
- ÃÖ´ë ¹üÀ§: 3km-5km
- ¹«Àü±â À¯Çü: ÈÞ´ë¿ë
- °ÇÀüÁö ¼ö¿ë·® (mAh): 0
- Ãâ·Â Àü·Â(w): 0.5w 3w
- ¹æ¼ö/³»¼ö: ¾Æ´Ï´Ù
- Â÷¿ø: 35.6*19*2.6mm
- ½ºÅ丮Áö ä³Î: 38 CTCSS ,166 CDCSS
- Àç·á: PCBA
- ÁÖÆļö ¹üÀ§: 400 ~ 480 MHz (UHF);134~174MHZ (VHF)
- Working Voltage: 3.3 ~ 5.5 V
- RX current: 60mA
- TX current (high power): 650~750 mW
- Sensitivity: -124 dBm
- Tx and Rx frequency: Tx and Rx CTCSS,CDCSS can be set alone
- Band width: 12.5/25KHz
- Output power: up to 1 w
- Transmission distance: up to 3.5 to 5 km in Open area
- TX current (low power): 450~550mW
- frequency band: VHF / UHF
2 pcs sa818 °í ÅëÇÕ ÀÓº£µðµå vhf uhf ¿öÅ° ÅäÅ° ¸ðµâ
SA818°í¼º´É ¸¶ÀÌÅ©·Î ÄÁÆ®·Ñ·¯, Á¼Àº ¹êµå rf ¼Û¼ö½Å±â ¹× ±âÁØÀ¸·Î ºÙ¹ÚÀÌ Àú°¡ ±×·¯³ª °í¼º´É ÅëÇÕ ¿öÅ° ÅäÅ° ´ÜÀ§.UART ÀÎÅÍÆäÀ̽º±×°ÍÀº ½±°Ô »ç¿ëµÇ°í ÁÁÀº Ç°Áú À½¼º°ú Àå°Å¸® Àü¼ÛÀ» °¡Áø ¸ðµç ¿öÅ° ÅäÅ° ±â´ÉÀ» ¼º°øÇÒ ¼ö ÀÖ½À´Ï´Ù. »ç¿ëÀÚ´Â ¿ÜºÎ ¿Àµð¿À ÁõÆø±â, ¸¶ÀÌÅ© ¶Ç´Â ½ºÇÇÄ¿¸¦ ÀÌ ´ÜÀ§¸¦ °¡Áø ¿¬°áÇØ¾ß ÇÕ´Ï´Ù, ±× ÈÄ¿¡ ÀÛÀº ¿öÅ° ÅäÅ°·Î ÀÛµ¿ÇÒ ¼ö ÀÖ½À´Ï´Ù1 W Ãâ·Â. ¿¸° Áö¿ª¿¡¼ ½±°Ô ´Þ¼º ÇÒ ¼ö ÀÖ½À´Ï´Ù.3.5-5 km Åë½Å. ´Ü¼øÈµÈ °ø¿ë¿µ¿ª ¹× ¸Å¿ì ÀÛÀº Å©±â´Â ÀÌ ´ÜÀ§¸¦ ´Ù¾çÇÑ ½ÅûÀ», ¶ÇÇÑ Æí¸®ÇÏ°Ô ³¡ÀÇ Á¦Ç°ÀÇ Æ÷°ýÀûÀÎ ¼º°ú¸¦ °³·®Çϱâ À§ÇÏ¿© °¢Á¾ ¼ÒÇü ÀåÄ¡·Î ³¢¿ö³ÖÀ» ¼ö ÀÖ½À´Ï´Ù ¸¸µì´Ï´Ù.
¸ð¼ö
|
Å×½ºÆ® Á¶°Ç
|
Min
|
Typ
|
Max
|
À¯´Ö
|
Àü¿ø
|
|
3.3
|
4.2
|
5.5
|
V
|
ÀÛµ¿ ¿Âµµ ¹üÀ§
|
|
-30
|
25
|
85
|
|
ÇöÀç ¼Òºñ
|
Àá ÇöÀç
|
@ Pd = 0 v
|
|
≤1
|
|
UA
|
RX Àü·ù
|
|
|
60
|
|
MA
|
TX Àü·ù(³ôÀº Àü¿ø)
|
|
|
650
|
750
|
MA
|
TX Àü·ù(ÀúÀü·Â)
|
|
|
450
|
550
|
MA
|
Àü¼Û RF ¸ð¼ö
|
ÁÖÆļö ¹üÀ§
|
UHF
|
400
|
|
480
|
MHz
|
ÁÖÆļö ¹üÀ§
|
VHF
|
134
|
|
174
|
MHz
|
Àü¿ø(³ôÀº Àü¿ø)
|
@ Vcc = 4.0 v
|
28
|
29.5
|
31
|
DBm
|
Àü¿ø(ÀúÀü·Â)
|
25
|
26.5
|
27
|
DBm
|
º¯Á¶ ÁÖÆļö
|
@ 1.5 khz/2.5 khz ÁÖÆļö ÆíÂ÷
|
|
10
|
|
MV
|
¿Àµð¿À º¯Á¶ ¿Ö°î
|
@ 1.5 khz/2.5 khz ÁÖÆļö ÆíÂ÷
|
|
2
|
5
|
%
|
½ÅÈ£To¼ÒÀ½ºñÀ²
|
@ 1.5 khz/2.5 khz ÁÖÆļö ÆíÂ÷
|
38
|
40
|
45
|
DB
|
ÀÎÁ¢ÇÑ Ã¤³Î Àü¿ø
|
@ 12.5 K ¿ÀÇÁ¼Â
|
|
-60dBc
|
|
DBm
|
CTCSS º¯Á¶ ÁÖÆļö
|
|
0.35
|
0.5
|
0.75
|
KHz
|
¼ö½Å RF ¸ð¼ö
|
¼ö½Å °¨µµ
|
|
|
-124
|
|
DBm
|
¼ö½Å SNR
|
@ 1.5 khz ÁÖÆļö ÆíÂ÷
|
45
|
50
|
|
DB
|
¿Àµð¿À Ãâ·Â ÁøÆø
|
|
|
700
|
|
MV
|
¿Àµð¿À Ãâ·Â ÀÓÇÇ´ø½º
|
|
|
200
|
|
¿È
|
Ư¡:
* ÁÖÆļö: 400 ~ 480 mhz (uhf)
* 134 ~ 174 mhz (vhf)
* Tx ¹× rx ÁÖÆļö, tx ¹× rx ctcss, cdcss´Â È¥ÀÚ ³õÀÏ ¼ö ÀÖ½À´Ï´Ù.
* ¹êµå Æø 12.5/25 khz
* Ãâ·Â Àü·Â ÃÖ´ë 1 w
* °³¹æ Áö¿ª¿¡ 3.5 ±îÁö 5 km Àü¼Û °Å¸®
* °¨µµ:-124 dbm
* ¼ÒÇü
* ³»Àå eeprom, µ¥ÀÌÅÍ À¯Áö unchanged ½ÉÁö¾î Àü¿ø ²ô±â
* 38 CTCSS
* 166 CDCSS
* 8 ·¹º§ ½ºÄÌÄ¡
* 8 Á¶Àý º¼·ý
* High/low ÈûÀº ¼±ÅÃÀûÀÔ´Ï´Ù (500 mw)-1 w
* ±¤¹üÀ§ÇÑ ÀÛµ¿ Àü¾Ð 3.3 5.5 V
* 1 ppm kds tcxo Å©¸®½ºÅ»
½Åû:
* ÀÛÀº ¿öÅ° ÅäÅ°
* º¸ÀÌÁö ¾Ê´Â ÀÎÅÍÄÞ ½Ã½ºÅÛ
* ½ºÆ÷Ã÷ Á¦Ç°
* °Ç¹° Ä¿¹Â´ÏƼ º¸¾È ½Ã½ºÅÛ
* »çÁøÀ»ÁöµµÇß´Ù
-
2 pcsVHF¿öÅ° ÅäÅ° ¸ðµâ SA818
ÇÊ¿äÇϸéUhf (400 ~ 480 mhz)ÁÖÆļö, ±×³É ¸Þ½ÃÁö¸¦ ³²°ÜÁÖ¼¼¿ä! ¶ÇÇÑ, ¿ì¸®´Â °¡°Ô¿¡¼ µ¥¸ð baord°¡ ÀÖ½À´Ï´Ù!
¼±Àû: Áß±¹ ¿ìÆíÀ¸·Î ¹«·á ¹è¼Û
![](https://ae01.alicdn.com/kf/HTB11D1rGXXXXXbyXFXXq6xXFXXXl/220307334/HTB11D1rGXXXXXbyXFXXq6xXFXXXl.jpg)
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