Difference between revisions of "ANFR ID 782472"

Jump to navigation Jump to search

ANFR ID 782472 (view source)

Revision as of 10:35, 16 June 2024

3,161 bytes added ,  16 June
ANFR SUPPORT page updated.
(ANFR SUPPORT page updated.)
(ANFR SUPPORT page updated.)
 
(One intermediate revision by the same user not shown)
Line 8: Line 8:
| '''Propriétaire''' || ORANGE
| '''Propriétaire''' || ORANGE
|-
|-
| '''Exploitants''' || DIGICEL, MADIACOM, ORANGE
| '''Exploitants''' || DIGICEL, FREE CARAIBES, MADIACOM, ORANGE
|-
|-
| '''Nb antennes''' || 10
| '''Nb antennes''' || 10
Line 14: Line 14:
|}
|}
{| class="wikitable"
{| class="wikitable"
!colspan="2"| <big>Antenne ORANGE</big>
!colspan="2"| <big>Antenne DIGICEL, FREE CARAIBES</big>
|-
|-
| '''Hauteur''' || 48.0m
| '''Hauteur''' || 45.7m
|-
|-
| '''Type''' || Panneau
| '''Type''' || Panneau
|-
|-
| '''Orientations (3)''' || 10.0°, 90.0°, 160.0°
| '''Orientation (1)''' || 330.0°
|-
|-
!colspan="2"|Emetteur(s)
!colspan="2"|Emetteur(s)
|-
|-
!colspan="2"| '''<span style="color:#06ba06">2G</span> - GSM 1800
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''20.0 MHz''' (1750.0 MHz-1770.0 MHz)<br>↳ '''20.0 MHz''' (1845.0 MHz-1865.0 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''15.0 MHz''' (1770.0 MHz-1785.0 MHz)<br>↳ '''15.0 MHz''' (1865.0 MHz-1880.0 MHz)
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''10.0 MHz''' (1925.3 MHz-1935.3 MHz)<br>↳ '''10.0 MHz''' (2115.3 MHz-2125.3 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''10.0 MHz''' (1969.7 MHz-1979.7 MHz)<br>↳ '''10.0 MHz''' (2159.7 MHz-2169.7 MHz)
|-
|-
|-
| colspan="2" |- '''''🟧 ORANGE''': ❓''<br>↳ '''20.0 MHz''' (1710.0 MHz-1730.0 MHz)<br>↳ '''20.0 MHz''' (1805.0 MHz-1825.0 MHz)
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2600
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''15.0 MHz''' (2500.0 MHz-2515.0 MHz)<br>↳ '''15.0 MHz''' (2620.0 MHz-2635.0 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''20.0 MHz''' (2535.0 MHz-2555.0 MHz)<br>↳ '''20.0 MHz''' (2655.0 MHz-2675.0 MHz)
|-
|-
!colspan="2"| '''<span style="color:#06ba06">2G</span> - GSM 900
|-
|-
| colspan="2" |- '''''🟧 ORANGE''': ✅ 31/10/2006''<br>↳ '''10.0 MHz''' (890.1 MHz-900.1 MHz)<br>↳ '''10.0 MHz''' (935.1 MHz-945.1 MHz)
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 800
|-
|-
{| class="wikitable"
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''10.0 MHz''' (811.0 MHz-821.0 MHz)<br>↳ '''10.0 MHz''' (852.0 MHz-862.0 MHz)
!colspan="2"| <big>Antenne ORANGE</big>
|-
|-
| '''Hauteur''' || 49.0m
|-
|-
| '''Type''' || Panneau
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
|-
|-
| '''Orientations (3)''' || 10.0°, 90.0°, 160.0°
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''4.8 MHz''' (1920.5 MHz-1925.3 MHz)<br>↳ '''4.8 MHz''' (2110.5 MHz-2115.3 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''4.8 MHz''' (1964.9 MHz-1969.7 MHz)<br>↳ '''4.8 MHz''' (2154.9 MHz-2159.7 MHz)
|-
|-
!colspan="2"|Emetteur(s)
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
|-
|-
| colspan="2" |- '''''🟧 ORANGE''': ✅ 24/02/2017''<br>↳ '''20.0 MHz''' (1710.0 MHz-1730.0 MHz)<br>↳ '''20.0 MHz''' (1805.0 MHz-1825.0 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''5.0 MHz''' (885.1 MHz-890.1 MHz)<br>↳ '''5.0 MHz''' (930.1 MHz-935.1 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''4.8 MHz''' (900.1 MHz-904.9 MHz)<br>↳ '''4.8 MHz''' (945.1 MHz-949.9 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
!colspan="2"| '''<span style="color:#06ba06">2G</span> - GSM 900
|-
|-
| colspan="2" |- '''''🟧 ORANGE''': ✅ 28/06/2011''<br>↳ '''14.8 MHz''' (1935.3 MHz-1950.1 MHz)<br>↳ '''14.8 MHz''' (2125.3 MHz-2140.1 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''5.0 MHz''' (880.1 MHz-885.1 MHz)<br>↳ '''5.0 MHz''' (925.1 MHz-930.1 MHz)
|-
|-
{| class="wikitable"
{| class="wikitable"
!colspan="2"| <big>Antenne DIGICEL</big>
!colspan="2"| <big>Antenne DIGICEL, FREE CARAIBES</big>
|-
|-
| '''Hauteur''' || 45.7m
| '''Hauteur''' || 46.0m
|-
|-
| '''Type''' || Panneau
| '''Type''' || Panneau
|-
|-
| '''Orientation (1)''' || 330.0°
| '''Orientation (1)''' || 61.0°
|-
|-
!colspan="2"|Emetteur(s)
!colspan="2"|Emetteur(s)
Line 66: Line 71:
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''20.0 MHz''' (1750.0 MHz-1770.0 MHz)<br>↳ '''20.0 MHz''' (1845.0 MHz-1865.0 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''20.0 MHz''' (1750.0 MHz-1770.0 MHz)<br>↳ '''20.0 MHz''' (1845.0 MHz-1865.0 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''15.0 MHz''' (1770.0 MHz-1785.0 MHz)<br>↳ '''15.0 MHz''' (1865.0 MHz-1880.0 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''10.0 MHz''' (1925.3 MHz-1935.3 MHz)<br>↳ '''10.0 MHz''' (2115.3 MHz-2125.3 MHz)
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''10.0 MHz''' (1925.3 MHz-1935.3 MHz)<br>↳ '''10.0 MHz''' (2115.3 MHz-2125.3 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''10.0 MHz''' (1969.7 MHz-1979.7 MHz)<br>↳ '''10.0 MHz''' (2159.7 MHz-2169.7 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2600
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2600
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''15.0 MHz''' (2500.0 MHz-2515.0 MHz)<br>↳ '''15.0 MHz''' (2620.0 MHz-2635.0 MHz)
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''15.0 MHz''' (2500.0 MHz-2515.0 MHz)<br>↳ '''15.0 MHz''' (2620.0 MHz-2635.0 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''20.0 MHz''' (2535.0 MHz-2555.0 MHz)<br>↳ '''20.0 MHz''' (2655.0 MHz-2675.0 MHz)
|-
|-
|-
|-
Line 86: Line 91:
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''4.8 MHz''' (1920.5 MHz-1925.3 MHz)<br>↳ '''4.8 MHz''' (2110.5 MHz-2115.3 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''4.8 MHz''' (1920.5 MHz-1925.3 MHz)<br>↳ '''4.8 MHz''' (2110.5 MHz-2115.3 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''4.8 MHz''' (1964.9 MHz-1969.7 MHz)<br>↳ '''4.8 MHz''' (2154.9 MHz-2159.7 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''5.0 MHz''' (885.1 MHz-890.1 MHz)<br>↳ '''5.0 MHz''' (930.1 MHz-935.1 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''5.0 MHz''' (885.1 MHz-890.1 MHz)<br>↳ '''5.0 MHz''' (930.1 MHz-935.1 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''4.8 MHz''' (900.1 MHz-904.9 MHz)<br>↳ '''4.8 MHz''' (945.1 MHz-949.9 MHz)
|-
|-
|-
|-
Line 99: Line 104:
|-
|-
{| class="wikitable"
{| class="wikitable"
!colspan="2"| <big>Antenne DIGICEL</big>
!colspan="2"| <big>Antenne DIGICEL, FREE CARAIBES</big>
|-
|-
| '''Hauteur''' || 46.0m
| '''Hauteur''' || 46.1m
|-
|-
| '''Type''' || Panneau
| '''Type''' || Panneau
|-
|-
| '''Orientation (1)''' || 61.0°
| '''Orientation (1)''' || 141.0°
|-
|-
!colspan="2"|Emetteur(s)
!colspan="2"|Emetteur(s)
Line 111: Line 116:
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''20.0 MHz''' (1750.0 MHz-1770.0 MHz)<br>↳ '''20.0 MHz''' (1845.0 MHz-1865.0 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''20.0 MHz''' (1750.0 MHz-1770.0 MHz)<br>↳ '''20.0 MHz''' (1845.0 MHz-1865.0 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''15.0 MHz''' (1770.0 MHz-1785.0 MHz)<br>↳ '''15.0 MHz''' (1865.0 MHz-1880.0 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''10.0 MHz''' (1925.3 MHz-1935.3 MHz)<br>↳ '''10.0 MHz''' (2115.3 MHz-2125.3 MHz)
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''10.0 MHz''' (1925.3 MHz-1935.3 MHz)<br>↳ '''10.0 MHz''' (2115.3 MHz-2125.3 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''10.0 MHz''' (1969.7 MHz-1979.7 MHz)<br>↳ '''10.0 MHz''' (2159.7 MHz-2169.7 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2600
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2600
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''15.0 MHz''' (2500.0 MHz-2515.0 MHz)<br>↳ '''15.0 MHz''' (2620.0 MHz-2635.0 MHz)
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''15.0 MHz''' (2500.0 MHz-2515.0 MHz)<br>↳ '''15.0 MHz''' (2620.0 MHz-2635.0 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''20.0 MHz''' (2535.0 MHz-2555.0 MHz)<br>↳ '''20.0 MHz''' (2655.0 MHz-2675.0 MHz)
|-
|-
|-
|-
Line 131: Line 136:
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''4.8 MHz''' (1920.5 MHz-1925.3 MHz)<br>↳ '''4.8 MHz''' (2110.5 MHz-2115.3 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''4.8 MHz''' (1920.5 MHz-1925.3 MHz)<br>↳ '''4.8 MHz''' (2110.5 MHz-2115.3 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''4.8 MHz''' (1964.9 MHz-1969.7 MHz)<br>↳ '''4.8 MHz''' (2154.9 MHz-2159.7 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''5.0 MHz''' (885.1 MHz-890.1 MHz)<br>↳ '''5.0 MHz''' (930.1 MHz-935.1 MHz)
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''5.0 MHz''' (885.1 MHz-890.1 MHz)<br>↳ '''5.0 MHz''' (930.1 MHz-935.1 MHz) <br>- '''''FREE CARAIBES''': ❓''<br>↳ '''4.8 MHz''' (900.1 MHz-904.9 MHz)<br>↳ '''4.8 MHz''' (945.1 MHz-949.9 MHz)
|-
|-
|-
|-
Line 144: Line 149:
|-
|-
{| class="wikitable"
{| class="wikitable"
!colspan="2"| <big>Antenne DIGICEL</big>
!colspan="2"| <big>Antenne ORANGE</big>
|-
|-
| '''Hauteur''' || 46.1m
| '''Hauteur''' || 48.5m
|-
| '''Type''' || Panneau
|-
| '''Orientations (3)''' || 10.0°, 90.0°, 160.0°
|-
!colspan="2"|Emetteur(s)
|-
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
|-
| colspan="2" |- '''''🟧 ORANGE''': ❓''<br>↳ '''10.0 MHz''' (890.1 MHz-900.1 MHz)<br>↳ '''10.0 MHz''' (935.1 MHz-945.1 MHz)
|-
|-
!colspan="2"| '''<span style="color:#06ba06">2G</span> - GSM 900
|-
| colspan="2" |- '''''🟧 ORANGE''': ✅ 31/10/2006''<br>↳ '''10.0 MHz''' (890.1 MHz-900.1 MHz)<br>↳ '''10.0 MHz''' (935.1 MHz-945.1 MHz)
|-
{| class="wikitable"
!colspan="2"| <big>Antenne ORANGE</big>
|-
| '''Hauteur''' || 49.0m
|-
|-
| '''Type''' || Panneau
| '''Type''' || Panneau
|-
|-
| '''Orientation (1)''' || 141.0°
| '''Orientations (2)''' || 10.0°, 90.0°
|-
|-
!colspan="2"|Emetteur(s)
!colspan="2"|Emetteur(s)
Line 156: Line 181:
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''20.0 MHz''' (1750.0 MHz-1770.0 MHz)<br>↳ '''20.0 MHz''' (1845.0 MHz-1865.0 MHz)
| colspan="2" |- '''''🟧 ORANGE''': ✅ 24/02/2017''<br>↳ '''20.0 MHz''' (1710.0 MHz-1730.0 MHz)<br>↳ '''20.0 MHz''' (1805.0 MHz-1825.0 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''10.0 MHz''' (1925.3 MHz-1935.3 MHz)<br>↳ '''10.0 MHz''' (2115.3 MHz-2125.3 MHz)
| colspan="2" |- '''''🟧 ORANGE''': ❓''<br>↳ '''10.0 MHz''' (1935.3 MHz-1945.3 MHz)<br>↳ '''10.0 MHz''' (2125.3 MHz-2135.3 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2600
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
|-
| colspan="2" |- '''''🟧 ORANGE''': ✅ 28/06/2011''<br>↳ '''4.8 MHz''' (1945.3 MHz-1950.1 MHz)<br>↳ '''4.8 MHz''' (2135.3 MHz-2140.1 MHz)
|-
|-
| colspan="2" |- '''''DIGICEL''': ❓''<br>↳ '''15.0 MHz''' (2500.0 MHz-2515.0 MHz)<br>↳ '''15.0 MHz''' (2620.0 MHz-2635.0 MHz)
{| class="wikitable"
!colspan="2"| <big>Antenne ORANGE</big>
|-
|-
| '''Hauteur''' || 49.0m
|-
|-
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 800
| '''Type''' || Panneau
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''10.0 MHz''' (811.0 MHz-821.0 MHz)<br>↳ '''10.0 MHz''' (852.0 MHz-862.0 MHz)
| '''Orientation (1)''' || 160.0°
|-
|-
!colspan="2"|Emetteur(s)
|-
|-
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 1800
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''4.8 MHz''' (1920.5 MHz-1925.3 MHz)<br>↳ '''4.8 MHz''' (2110.5 MHz-2115.3 MHz)
| colspan="2" |- '''''🟧 ORANGE''': ✅ 24/02/2017''<br>↳ '''20.0 MHz''' (1710.0 MHz-1730.0 MHz)<br>↳ '''20.0 MHz''' (1805.0 MHz-1825.0 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 900
!colspan="2"| '''<span style="color:#FF0000">4G</span> - LTE 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 04/06/2018''<br>↳ '''5.0 MHz''' (885.1 MHz-890.1 MHz)<br>↳ '''5.0 MHz''' (930.1 MHz-935.1 MHz)
| colspan="2" |- '''''🟧 ORANGE''': ❓''<br>↳ '''10.0 MHz''' (1935.3 MHz-1945.3 MHz)<br>↳ '''10.0 MHz''' (2125.3 MHz-2135.3 MHz)
|-
|-
|-
|-
!colspan="2"| '''<span style="color:#06ba06">2G</span> - GSM 900
!colspan="2"| '''<span style="color:#0000FF">3G</span> - UMTS 2100
|-
|-
| colspan="2" |- '''''DIGICEL''': ✅ 06/02/2011''<br>↳ '''5.0 MHz''' (880.1 MHz-885.1 MHz)<br>↳ '''5.0 MHz''' (925.1 MHz-930.1 MHz)
| colspan="2" |- '''''🟧 ORANGE''': ✅ 28/06/2011''<br>↳ '''14.8 MHz''' (1935.3 MHz-1950.1 MHz)<br>↳ '''14.8 MHz''' (2125.3 MHz-2140.1 MHz)
|-
|-
{| class="wikitable"
{| class="wikitable"
Line 205: Line 235:
|}
|}
{| class="wikitable"
{| class="wikitable"
!colspan="2"| <big>Station N°9730980048</big>
|-
| '''Exploitant''' || FREE CARAIBES
|-
| '''Implantation''' || 01/03/2024
|-
| '''Mise en service''' ||
|-
| '''Modification''' ||
|-
!colspan="2"| <big>Station N°9732290049</big>
!colspan="2"| <big>Station N°9732290049</big>
|-
|-
Line 213: Line 253:
| '''Mise en service''' || 31/10/2006
| '''Mise en service''' || 31/10/2006
|-
|-
| '''Modification''' || 17/02/2017
| '''Modification''' || 12/04/2024
|-
|-
!colspan="2"| <big>Station N°9733370048</big>
!colspan="2"| <big>Station N°9733370048</big>
Rkn22
1,160,281

edits

Retrieved from "https://docs.cellmapper.net/mw/Special:MobileDiff/1006199...1155892"

Navigation menu