Rattlegram 对比 HamSphere 5.0 的使用情况和统计数据

COFDMTV is based on COFDM (coded orthogonal frequency-division multiplexing) technology: - 160 ms long OFDM symbols - 6.25 Hz per sub-carrier - 1/8 guard interval - differentially encoded PSK (phase-shift keying) modulation - systematic polar codes for forward error correction Currently Modes 14, 15 and 16 are supported: Using either SPC(2048, 1392), SPC(2048, 1056) or SPC(2048, 712) with CRC32C aided SCL decoding and differential QPSK modulation for the payload. Only a bandwidth of 1600 Hz is needed and the transmission of either 85, 128 or 170 bytes take about one second with the leading noise and fancy header disabled.

Apple 应用商店
免费
社交网络

商店排名

- -

HamSphere 5.0

This handheld Amateur Radio transceiver offers 10-160m virtual HamSphere HF bands including 6m, 2m and 70cm. It comes with a fully working 30 day trial. The transceiver has three built in audio filters, USB, LSB and CW Modes, power setting. The transceiver can be expanded with a number of useful instruments as in-app-purchases.