用替代法测量手机辐射杂散执行标准是什么呢？

bloodrain100

  用替代法在半电波暗室测量辐射功率，客户报告给的参考标准是FCC part 22H, FCC part 2我参照了这两个标准和ANSI63.4都没有测试procedure的内容，哪位达人知道是参照什么标准么？

however

感谢Owen告诉我在en300 328里有替代法的描述.但300 328是关于2.4G ism和采用宽带调制技术的设备电磁兼容性要求, 有没有针对手机的标准规范要求呢?

bloodrain100

上边那个id也是我,不是老王卖瓜自卖自夸,是因为sysop帮我调试不能发帖问题而新注册的,没注意登陆错了。我仔细查了一下,用替代法测量射频功率是在标准tia-98-f中的clause 2.6。内容如下：
2.6 Radiated Signal Measurement Procedures
Radiated signals having significant levels shall be measured on the 30-meter or the 3-meter
range by using the following procedure:
1. For each observed radiated signal, raise and lower the search antenna to obtain a
maximum reading on the field-strength meter with the antenna horizontally
polarized. Then rotate the turntable to maximize the reading. Repeat this


procedure of raising and lowering the antenna and rotating the turntable until the
highest possible signal has been obtained. Record this maximum reading.
2. Repeat step 1 for each observed radiated signal with the antenna vertically
polarized.
3. Remove the equipment being tested and replace it with a half-wave antenna. The
center of the half-wave antenna should be at the same approximate location as the
center of the equipment being tested.
4. Feed the half-wave antenna replacing the equipment under test with a signal
generator connected to the antenna by means of a non-radiating cable. With the
antennas at both ends horizontally polarized and with the signal generator tuned
to the observed radiated signal, raise and lower the search antenna to obtain a
maximum reading on the field-strength measuring meter. Adjust the level of the
signal generator output until the previously recorded maximum reading for this set
of conditions is obtained. Record the signal generator power output.
5. Repeat step 4 above with both antennas vertically polarized.
6. Calculate the power into a reference ideal isotropic antenna by:
a. First reducing the readings obtained in steps 4 and 5 above by the power loss
in the cable between the generator and the source antenna, and
b. Then correcting for the gain of the source antenna used relative to an ideal
isotropic antenna. The reading thus obtained is the equivalent effective
isotropic radiated power (EIRP) level for the spurious signal being measured.
7. Repeat steps 1 through 6 above for all observed signals from the equipment being
tested.

cloudfgl

测试标准应该是 ANSI/TIA/EIA-603-C-2004，不知道哪位大侠能搞出来共享一下。

green

那位大虾有ANSI/TIA/EIA-603-C-2004，请共享一下，多谢了！！！