Freewave Product Comparison

Series Comparison: ZumLink and HTPlus

Important FeaturesZumLinkHTPlus Series
ModelZ9-PE (Enclosed)HT-PE (Enclosed)
Frequency Bands902 - 928 MHz902 - 928 MHz
RF Link Rate (kbps)115.2, 250, 500, 1000, 4000614 and 867
Range (miles)up to 60 miles LOSup to 30 miles LOS
Max TX Power1W / 30 dBm1W / 30 dBm
Power Level User SelectivityYes. 10dBm to 30dBmYes. 30 dBm
Modulation2 level GFSK and 8-ary FSK2 Level GFSK
Frequency HoppingYesYes
EncryptionAES 128, 256AES 128
Receiver Sensitivity-105 dBm @ 115.2 kbps (w 7/8 FEC: -108 dBm)No
-102 dBm @ 250 kbps (w 7/8 FEC: -105 dBm)No
-99 dBm @ 500 kbps (w 7/8 FEC: -102 dBm)-102 dBm @ 614 kbps
-95 dBm @ 1 Mbps (w 7/8 FEC: -98 dBm)-96 dBm @ 867 kbps
-83 dBm @ 4 Mbps (w 7/8 FEC: -86 dBm)No

ZumBoost Performance FeaturesZumLinkHTPlus Series
Adaptive Spectrum Learning (ASL)
(Monitors channels before transmission to avoid interference)
YesNo
Forward Error Correction (FEC)
(Detects packet errors and corrects them to avoid re-transmission of the packet )
YesNo
Packet Compression
(Encodes packet with compression algorithm to reduce overhead)
YesNo
Packet Aggregation
(Combines multiple small packets, increasing throughput for small packets)
YesNo
ThroughputZumLinkHTPlus Series
TCP Throughput Rate (kpbs)63 @ 115.2 kbpsNo
147 @ 250 kbpsNo
318 @ 500 kbps318 @ 614 kbps
583 @ 1000 kbps523 @ 867 kbps
1,049 @ 4000 kbpsNo
UDP Throughput Rate (kpbs)89 @ 115.2 kbpsNo
189 @ 250 kbpsNo
395 @ 500 kbps320 @ 614 kbps
779 @ 1000 kbps529 @ 867 kbps
1,657 @ 4000 kbpsNo
Note: With ZumBoost, ZumLink throughput can be drasticly higher than HTPlus depending on data structure.
ZumIQ ProgrammabilityZumLinkHTPlus Series
RAM512 MBNo
Storage1 GBNo
LanguagesNode-RED, node.js, Java, Python, C++No
RPi 'Drag and Drop'YesNo
Note: ZumIQ Programmability provides edge intelligence, future-proofing your RF network.

InterfacesZumLinkHTPlus Series
Ethernet Port12
Serial Port / RS232up to 250 kbpsup to 115.2 kbps
Serial Port / RS485up to 250 kbpsup to 115.2 kbps
USB10

PhysicalZumLinkHTPlus Series
Operating Temperature-40C to +75C-40C to +75C
Size191 x 105 x 42 mm173 x 97 x 35 mm
Input Power6 to 30 VDC6 to 30 VDC

FAQ: Migration to ZumLink from HT+ Series

Is the ZumLink over-the-air compatible with the HT+ series?
No, these two products are not over-the-air compatible but we are confident in the ability of these two products to coexist.

Will I get comparable performance from the ZumLink?
As illustrated above, the ZumLink has comparable specifications and also employs proprietary algorithms that enhance the performance of the radio when compared to the HTPlus.