Force 300csm ptp latency

Hi all! Does anyone have real in field results of ping latency between 2 force 300csm in ptp mode, and what dish they are using?

We are using a number of them. We are running TDD PTP mode 75%/25%
We are mostly using UBNT Rocket Dish antennas.

PING ( 32(60) bytes of data.
40 bytes from icmp_req=1 ttl=64 time=3.49 ms
40 bytes from icmp_req=2 ttl=64 time=2.81 ms
40 bytes from icmp_req=3 ttl=64 time=6.37 ms
40 bytes from icmp_req=4 ttl=64 time=3.98 ms
40 bytes from icmp_req=5 ttl=64 time=3.25 ms
40 bytes from icmp_req=6 ttl=64 time=5.35 ms
40 bytes from icmp_req=7 ttl=64 time=4.72 ms
40 bytes from icmp_req=8 ttl=64 time=3.42 ms
40 bytes from icmp_req=9 ttl=64 time=5.63 ms
40 bytes from icmp_req=10 ttl=64 time=3.67 ms

— ping statistics —
10 packets transmitted, 10 received, 0% packet loss, time 9014ms
rtt min/avg/max/mdev = 2.816/4.273/6.375/1.122 ms

@ninedd, as always appreciate your input and advice! Does it mount to rocket dish fine or do you need to modify? Also, my link is 25km… what antenna would you advise in using?

*Also, what distance of a link is your ping results you shared?

Thanx! Happy help and happy that it’s appreciated. :smiley: I would recommend running it through Linkplanner for your distance and see what antenna to use. More gain is always better of course - assuming you’ve got the room and the mounting/tower strength to support it. I think we’ve been using mostly the 30LW or the 34 RocketDish depending on distance.

We used the Cambium to UBNT adaptor brackets, and they work OKish to pair them. I also have been putting a metal hose clamp around them (around the mount and the F300c) so that nothing jiggles loose on the tower over time.

*The ping results I shared there was from a 23.5 Km link. I believe we have RocketDish 34’s on that one.

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@ninedd, awesome! I agree with link planner idea but trouble is the drop down does not show Canada when picking the force 300csm.

Oh right! I think we picked a different radio with similar characteristics and plugged in the antenna gain. It ended up being pretty close. For that matter - RadioMobile is also really a good estimator too - and RadioMobile takes the terrain and foliage into account too.

I mean, we usually use LinkPlanner because it’s usually simple and correct, but we dust off RadioMobile for times when LinkPlanner doesn’t have all the info.

Here is a Force300csm mounted to one of the RD30LW, with the hose clamp I mentioned for safety sake. Zip ties would probably work, but even the UV and -40 ones will break down at a certain point, whereas I trust a hose clamp. :slight_smile:

Ah yes I see… yes definitely hose clamp is a good bet :smiley:
So are the ubnt 34 db dishes 3ft? Thank you for the info!

I was taking a serious look at these for the Siklu EH-2500-FX failover 5G radio. They came with the UBNT AF5X-HD and am currently getting ~200Mbps at 5 miles in a noisy urban environment.

I was thinking maybe the F300-CSM might be a better performer in all the noise. What kind of throughput and bandwidth are these capable of?

Bridge installed for a customer:
F300C RF-Elements 30° horns both ends.
FCC DFS Channel
40Mhz Channel Width
TDD 75/25
Distance: 1.676 miles
Uptime: 24 days 19:14:24
RSSI: Down/Up -54/-58
SNR: Down/Up 36/33
MCS: DS 9/DS 9
Q/C 100 % / 100 %
Link Capacity Test:
Small 20s: 62/48
Medium 20s: 225/67
Large 20s: 249/70

Link load about about 30/5 Mbps Down/Up when doing pings

— ping statistics —
50 packets transmitted, 50 received, 0% packet loss, time 49077ms
rtt min/avg/max/mdev = 1.071/3.627/7.098/1.475 ms


But why is latency so high and inconsistent?

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