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MikroTik RBLHG-2nD-XL: Noise/Sensitivity

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AB4YY
MikroTik RBLHG-2nD-XL: Noise/Sensitivity

I am posting this for a friend:
 

I have a MikroTik RBLHG-2nD-XL running 1022-412a1e5 firmware.
Purchased new advertised as the International version.

Poor performance on ch  -2  using 10 MHz bandwidth.


Performed these tests:

Using chs 1 and higher, all is ok with 10 or 20 MHz b/w.
Displaying  -95 noise/sensitivity on the  NODE STATUS page.

Chs  -1 and -2  are ok when using 20 MHz b/w, but funky using 10 MHz b/w.
Displaying  -88 using 10 MHz b/w and  -95 using 20 MHz b/w.

ALL chs display -95 when using 20 MHz b/w.

Royce - W3IF
AE6XE
AE6XE's picture
If anyone has one of these

If anyone has one of these LHG devices, can you check to see what is showing on node status page for the noise and (ave) signal level?   Does anyone see a value other than -95 for the noise?    A node should boot to -95dBm noise level -- this is the starting point, but  then over time in noisy environments, can step this value up/down.   These noise values are consistent on this one device, and unexplained.   Given the device is underperforming, this device is suspect.   Although I would not expect the noise to be -88dBm, even if underperforming, rather lower SNRs with noise still -95dBm.   Anyone see similar noise values?

Joe AE6XE   

ko0ooo
rb-lhg-5hpnd-xl

I believe this is the same device?

current version: AE6XE-lhg2-3324ce8
hardware type: mikrotik (rb-lhg-5hpnd-xl)

in any event, same situation.     channel -2, 10MHZ B/W, noise floor is 90      using a B/W of 5 or 20 and noise floor is 95      test node is 50' away

I took this thing off line a couple of months ago due to poor performance..    using the same mounting location, power out and antenna gain, my Bullet with an open dish had significantly better SNR compared to the Mikrotik.      didn't keep notes thou...  sorry

Richard    ko0ooo

ko0ooo
update?

any news?

my wife sezs it would make a unique hanging flower pot if I'm not using it.

Richard     ko0ooo

w6bi
w6bi's picture
Mikrotik LHG-2nD-XL

On KM6FQ's Mikrotik LHG-2nD-XL  I see

Signal/Noise/Ratio    -67 / -88 / 21 dB

Orv W6BI

K6CCC
K6CCC's picture
-90 dBm noise floor

Mine is showing a noise floor of -90 with a BW of 10 MHz on channel -2 running nightly 1101.  The three other nodes that it is hearing are currently -32, -38, & -48 dBm (they're all within 5 feet of each other).
 

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