Antenna's picking up signal from rear?

Questions and Support related to Antennas
joshb86
Posts: 15
Joined: Sat Feb 23, 2019 9:52 am

Re: Antenna's picking up signal from rear?

Post by joshb86 » Tue Sep 24, 2019 8:10 pm

@swwifty it looks like you have me going in the right direction...

The main was connected, but I went ahead and swapped the main and aux to see if the RSRP followed. Sure enough, it followed. Here are the stats connected back to my roof antenna feeds.

At!gstatus?
!GSTATUS:
Current Time: 3429 Temperature: 61
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
LTE band: B12 LTE bw: 10 MHz
LTE Rx chan: 5110 LTE Tx chan: 23110
LTE CA state: INACTIVE LTE Scell band:B4
LTE Scell bw:10 MHz LTE Scell chan:2000
EMM state: Registered Normal Service
RRC state: RRC Connected
IMS reg state: No Srv

PCC RxM RSSI: -79 RSRP (dBm): -104
PCC RxD RSSI: -98 RSRP (dBm): -130
SCC RxM RSSI: -88 RSRP (dBm): -107
SCC RxD RSSI: -102 RSRP (dBm): -130
Tx Power: 22 TAC: 2280 (8832)
RSRQ (dB): -12.2 Cell ID: 027DBD10 (41794832)
SINR (dB): 5.2


OK

I instantly notice that I can now pretty much get some sort of signal no matter where I point the antenna.

So at this point it's looking like one of my feeds or the u.fl that was originally on the main correct? I'm about to verify the roof feeds by taking my router/modem and hooking them into the antenna's with my 18 inch N to sma.

I'll report back to you.

swwifty
Posts: 463
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Antenna's picking up signal from rear?

Post by swwifty » Tue Sep 24, 2019 9:20 pm

Good catch.

If the problem followed it's most likely the cable.

Is it possible you have water damage in that one?

joshb86
Posts: 15
Joined: Sat Feb 23, 2019 9:52 am

Re: Antenna's picking up signal from rear?

Post by joshb86 » Tue Sep 24, 2019 10:27 pm

Great news! So, I bypassed the longs runs from the roof to my network closet by plugging short leads directly into the antenna's as previously mentioned. The results were instantly better:

At!gstatus?
!GSTATUS:
Current Time: 1301 Temperature: 37
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
LTE band: B4 LTE bw: 10 MHz
LTE Rx chan: 2000 LTE Tx chan: 20000
LTE CA state: INACTIVE LTE Scell band:B12
LTE Scell bw:10 MHz LTE Scell chan:5110
EMM state: Registered Normal Service
RRC state: RRC Connected
IMS reg state: No Srv

PCC RxM RSSI: -75 RSRP (dBm): -110
PCC RxD RSSI: -77 RSRP (dBm): -108
SCC RxM RSSI: -70 RSRP (dBm): -93
SCC RxD RSSI: -80 RSRP (dBm): -105
Tx Power: 0 TAC: 2280 (8832)
RSRQ (dB): -13.9 Cell ID: 027DBD17 (41794839)
SINR (dB): 0.6


OK


This was a clear indicator that one of my lmr400 feeds had an issue... It was pre-terminated cables that I had ordered a few weeks ago that looked good, but I went ahead an re-terminated the feed that was plugged into the original main. Once I did that, we are looking much better!

At!gstatus?
!GSTATUS:
Current Time: 3840 Temperature: 46
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
LTE band: B12 LTE bw: 10 MHz
LTE Rx chan: 5110 LTE Tx chan: 23110
LTE CA state: INACTIVE LTE Scell band:B4
LTE Scell bw:10 MHz LTE Scell chan:2000
EMM state: Registered Normal Service
RRC state: RRC Connected
IMS reg state: No Srv

PCC RxM RSSI: -67 RSRP (dBm): -94
PCC RxD RSSI: -77 RSRP (dBm): -104
SCC RxM RSSI: -85 RSRP (dBm): -107
SCC RxD RSSI: -83 RSRP (dBm): -109
Tx Power: 13 TAC: 2280 (8832)
RSRQ (dB): -10.3 Cell ID: 027DBD10 (41794832)
SINR (dB): 5.6


OK


Thank you for taking the time to help me out. I really appreciate it... Looking at my current stats, is there anything you see that needs attention?

swwifty
Posts: 463
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Antenna's picking up signal from rear?

Post by swwifty » Wed Sep 25, 2019 5:59 pm

Great to hear that! I don't see anything obviously wrong now.

What kind of speeds are you getting now?

joshb86
Posts: 15
Joined: Sat Feb 23, 2019 9:52 am

Re: Antenna's picking up signal from rear?

Post by joshb86 » Wed Sep 25, 2019 8:23 pm

swwifty wrote:
Wed Sep 25, 2019 5:59 pm
Great to hear that! I don't see anything obviously wrong now.

What kind of speeds are you getting now?
On average 15 up and down. I've seen a few spikes with the download in the 30's. Compared to where I was, it's night and day mainly because I was lucky to ever see 1mb upload (most the time 1-300k) and my latency / packet loss issues are gone. Prior I had steady packet loss and latency was always 100-1200ms. Now I'm staying below 60ms for the most part.

swwifty
Posts: 463
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Antenna's picking up signal from rear?

Post by swwifty » Wed Sep 25, 2019 10:16 pm

joshb86 wrote:
Wed Sep 25, 2019 8:23 pm
On average 15 up and down. I've seen a few spikes with the download in the 30's. Compared to where I was, it's night and day mainly because I was lucky to ever see 1mb upload (most the time 1-300k) and my latency / packet loss issues are gone. Prior I had steady packet loss and latency was always 100-1200ms. Now I'm staying below 60ms for the most part.
awesome! might be worth trying to aim them a bit now and see if you can eek out any more performance.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post