Dimension Table

University of Alberta observatory domes

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Antenna Dimensions

 

Please note that all measurements are in centimeters. Frequencies are in Megahertz (MHz).

  LENGTH SPACING

FREQ.

 DIR. 4

 DIR. 3

 DIR. 2

 DIR. 1

 DE

 REFL

 D4 - D3

 D3 - D2

 D2 - D1

 D1 - DE

DE - REFL

MHz

 cm

 cm

 cm

 cm

 cm

 cm

 cm

 cm

 cm

 cm

 cm

           88.1

         144.0

         146.4

         148.1

         149.8

         161.1

         168.6

           85.1

           85.1

           85.1

           42.6

           42.6

           88.3

         143.7

         146.1

         147.8

         149.5

         160.7

         168.2

           84.9

           84.9

           84.9

           42.5

           42.5

           88.5

         143.4

         145.8

         147.5

         149.2

         160.3

         167.8

           84.7

           84.7

           84.7

           42.4

           42.4

           88.7

         143.1

         145.4

         147.1

         148.8

         160.0

         167.4

           84.6

           84.6

           84.6

           42.3

           42.3

           88.9

         142.7

         145.1

         146.8

         148.5

         159.6

         167.0

           84.4

           84.4

           84.4

           42.2

           42.2

           89.1

         142.4

         144.8

         146.5

         148.1

         159.3

         166.7

           84.2

           84.2

           84.2

           42.1

           42.1

           89.3

         142.1

         144.5

         146.1

         147.8

         158.9

         166.3

           84.0

           84.0

           84.0

           42.0

           42.0

           89.5

         141.8

         144.1

         145.8

         147.5

         158.5

         165.9

           83.8

           83.8

           83.8

           41.9

           41.9

           89.7

         141.5

         143.8

         145.5

         147.2

         158.2

         165.6

           83.6

           83.6

           83.6

           41.8

           41.8

           89.9

         141.2

         143.5

         145.2

         146.8

         157.8

         165.2

           83.4

           83.4

           83.4

           41.7

           41.7

           90.1

         140.8

         143.2

         144.8

         146.5

         157.5

         164.8

           83.2

           83.2

           83.2

           41.6

           41.6

           90.3

         140.5

         142.9

         144.5

         146.2

         157.1

         164.5

           83.1

           83.1

           83.1

           41.5

           41.5

           90.5

         140.2

         142.5

         144.2

         145.9

         156.8

         164.1

           82.9

           82.9

           82.9

           41.4

           41.4

           90.7

         139.9

         142.2

         143.9

         145.5

         156.4

         163.7

           82.7

           82.7

           82.7

           41.3

           41.3

           90.9

         139.6

         141.9

         143.6

         145.2

         156.1

         163.4

           82.5

           82.5

           82.5

           41.3

           41.3

           91.1

         139.3

         141.6

         143.2

         144.9

         155.8

         163.0

           82.3

           82.3

           82.3

           41.2

           41.2

           91.3

         139.0

         141.3

         142.9

         144.6

         155.4

         162.7

           82.1

           82.1

           82.1

           41.1

           41.1

           91.5

         138.7

         141.0

         142.6

         144.3

         155.1

         162.3

           82.0

           82.0

           82.0

           41.0

           41.0

           91.7

         138.4

         140.7

         142.3

         143.9

         154.7

         161.9

           81.8

           81.8

           81.8

           40.9

           40.9

           91.9

         138.1

         140.4

         142.0

         143.6

         154.4

         161.6

           81.6

           81.6

           81.6

           40.8

           40.8

           92.1

         137.8

         140.1

         141.7

         143.3

         154.1

         161.2

           81.4

           81.4

           81.4

           40.7

           40.7

           92.3

         137.5

         139.8

         141.4

         143.0

         153.7

         160.9

           81.3

           81.3

           81.3

           40.6

           40.6

           92.5

         137.2

         139.5

         141.1

         142.7

         153.4

         160.5

           81.1

           81.1

           81.1

           40.5

           40.5

           92.7

         136.9

         139.2

         140.8

         142.4

         153.1

         160.2

           80.9

           80.9

           80.9

           40.5

           40.5

           92.9

         136.6

         138.9

         140.5

         142.1

         152.7

         159.8

           80.7

           80.7

           80.7

           40.4

           40.4

           93.1

         136.3

         138.6

         140.2

         141.8

         152.4

         159.5

           80.6

           80.6

           80.6

           40.3

           40.3

           93.3

         136.0

         138.3

         139.9

         141.5

         152.1

         159.2

           80.4

           80.4

           80.4

           40.2

           40.2

           93.5

         135.7

         138.0

         139.6

         141.2

         151.8

         158.8

           80.2

           80.2

           80.2

           40.1

           40.1

           93.7

         135.4

         137.7

         139.3

         140.9

         151.4

         158.5

           80.0

           80.0

           80.0

           40.0

           40.0

           93.9

         135.1

         137.4

         139.0

         140.6

         151.1

         158.1

           79.9

           79.9

           79.9

           39.9

           39.9

           94.1

         134.9

         137.1

         138.7

         140.3

         150.8

         157.8

           79.7

           79.7

           79.7

           39.9

           39.9

           94.3

         134.6

         136.8

         138.4

         140.0

         150.5

         157.5

           79.5

           79.5

           79.5

           39.8

           39.8

           94.5

         134.3

         136.5

         138.1

         139.7

         150.2

         157.1

           79.4

           79.4

           79.4

           39.7

           39.7

           94.7

         134.0

         136.2

         137.8

         139.4

         149.8

         156.8

           79.2

           79.2

           79.2

           39.6

           39.6

           94.9

         133.7

         135.9

         137.5

         139.1

         149.5

         156.5

           79.0

           79.0

           79.0

           39.5

           39.5

           95.1

         133.4

         135.6

         137.2

         138.8

         149.2

         156.2

           78.9

           78.9

           78.9

           39.4

           39.4

           95.3

         133.2

         135.4

         136.9

         138.5

         148.9

         155.8

           78.7

           78.7

           78.7

           39.3

           39.3

           95.5

         132.9

         135.1

         136.6

         138.2

         148.6

         155.5

           78.5

           78.5

           78.5

           39.3

           39.3

           95.7

         132.6

         134.8

         136.4

         137.9

         148.3

         155.2

           78.4

           78.4

           78.4

           39.2

           39.2

           95.9

         132.3

         134.5

         136.1

         137.6

         148.0

         154.8

           78.2

           78.2

           78.2

           39.1

           39.1

           96.1

         132.0

         134.2

         135.8

         137.4

         147.7

         154.5

           78.0

           78.0

           78.0

           39.0

           39.0

           96.3

         131.8

         134.0

         135.5

         137.1

         147.4

         154.2

           77.9

           77.9

           77.9

           38.9

           38.9

           96.5

         131.5

         133.7

         135.2

         136.8

         147.0

         153.9

           77.7

           77.7

           77.7

           38.9

           38.9

           96.7

         131.2

         133.4

         135.0

         136.5

         146.7

         153.6

           77.6

           77.6

           77.6

           38.8

           38.8

           96.9

         131.0

         133.1

         134.7

         136.2

         146.4

         153.3

           77.4

           77.4

           77.4

           38.7

           38.7

           97.1

         130.7

         132.9

         134.4

         135.9

         146.1

         152.9

           77.2

           77.2

           77.2

           38.6

           38.6

           97.3

         130.4

         132.6

         134.1

         135.7

         145.8

         152.6

           77.1

           77.1

           77.1

           38.5

           38.5

           97.5

         130.2

         132.3

         133.8

         135.4

         145.5

         152.3

           76.9

           76.9

           76.9

           38.5

           38.5

           97.7

         129.9

         132.0

         133.6

         135.1

         145.2

         152.0

           76.8

           76.8

           76.8

           38.4

           38.4

           97.9

         129.6

         131.8

         133.3

         134.8

         144.9

         151.7

           76.6

           76.6

           76.6

           38.3

           38.3

           98.1

         129.4

         131.5

         133.0

         134.6

         144.6

         151.4

           76.5

           76.5

           76.5

           38.2

           38.2

           98.3

         129.1

         131.2

         132.8

         134.3

         144.4

         151.1

           76.3

           76.3

           76.3

           38.1

           38.1

           98.5

         128.8

         131.0

         132.5

         134.0

         144.1

         150.8

           76.1

           76.1

           76.1

           38.1

           38.1

           98.7

         128.6

         130.7

         132.2

         133.7

         143.8

         150.5

           76.0

           76.0

           76.0

           38.0

           38.0

           98.9

         128.3

         130.4

         132.0

         133.5

         143.5

         150.2

           75.8

           75.8

           75.8

           37.9

           37.9

           99.1

         128.1

         130.2

         131.7

         133.2

         143.2

         149.8

           75.7

           75.7

           75.7

           37.8

           37.8

           99.3

         127.8

         129.9

         131.4

         132.9

         142.9

         149.5

           75.5

           75.5

           75.5

           37.8

           37.8

           99.5

         127.5

         129.6

         131.2

         132.7

         142.6

         149.2

           75.4

           75.4

           75.4

           37.7

           37.7

           99.7

         127.3

         129.4

         130.9

         132.4

         142.3

         148.9

           75.2

           75.2

           75.2

           37.6

           37.6

           99.9

         127.0

         129.1

         130.6

         132.1

         142.0

         148.6

           75.1

           75.1

           75.1

           37.5

           37.5

         100.1

         126.8

         128.9

         130.4

         131.9

         141.8

         148.4

           74.9

           74.9

           74.9

           37.5

           37.5

         100.3

         126.5

         128.6

         130.1

         131.6

         141.5

         148.1

           74.8

           74.8

           74.8

           37.4

           37.4

         100.5

         126.3

         128.4

         129.9

         131.3

         141.2

         147.8

           74.6

           74.6

           74.6

           37.3

           37.3

         100.7

         126.0

         128.1

         129.6

         131.1

         140.9

         147.5

           74.5

           74.5

           74.5

           37.2

           37.2

         100.9

         125.8

         127.8

         129.3

         130.8

         140.6

         147.2

           74.3

           74.3

           74.3

           37.2

           37.2

         101.1

         125.5

         127.6

         129.1

         130.6

         140.4

         146.9

           74.2

           74.2

           74.2

           37.1

           37.1

         101.3

         125.3

         127.3

         128.8

         130.3

         140.1

         146.6

           74.0

           74.0

           74.0

           37.0

           37.0

         101.5

         125.0

         127.1

         128.6

         130.0

         139.8

         146.3

           73.9

           73.9

           73.9

           36.9

           36.9

         101.7

         124.8

         126.8

         128.3

         129.8

         139.5

         146.0

           73.7

           73.7

           73.7

           36.9

           36.9

         101.9

         124.5

         126.6

         128.1

         129.5

         139.3

         145.7

           73.6

           73.6

           73.6

           36.8

           36.8

         102.1

         124.3

         126.3

         127.8

         129.3

         139.0

         145.4

           73.5

           73.5

           73.5

           36.7

           36.7

         102.3

         124.0

         126.1

         127.6

         129.0

         138.7

         145.2

           73.3

           73.3

           73.3

           36.7

           36.7

         102.5

         123.8

         125.9

         127.3

         128.8

         138.4

         144.9

           73.2

           73.2

           73.2

           36.6

           36.6

         102.7

         123.6

         125.6

         127.1

         128.5

         138.2

         144.6

           73.0

           73.0

           73.0

           36.5

           36.5

         102.9

         123.3

         125.4

         126.8

         128.3

         137.9

         144.3

           72.9

           72.9

           72.9

           36.4

           36.4

         103.1

         123.1

         125.1

         126.6

         128.0

         137.6

         144.0

           72.7

           72.7

           72.7

           36.4

           36.4

         103.3

         122.8

         124.9

         126.3

         127.8

         137.4

         143.8

           72.6

           72.6

           72.6

           36.3

           36.3

         103.5

         122.6

         124.6

         126.1

         127.5

         137.1

         143.5

           72.5

           72.5

           72.5

           36.2

           36.2

         103.7

         122.4

         124.4

         125.8

         127.3

         136.8

         143.2

           72.3

           72.3

           72.3

           36.2

           36.2

         103.9

         122.1

         124.2

         125.6

         127.0

         136.6

         142.9

           72.2

           72.2

           72.2

           36.1

           36.1

         104.1

         121.9

         123.9

         125.4

         126.8

         136.3

         142.7

           72.0

           72.0

           72.0

           36.0

           36.0

         104.3

         121.7

         123.7

         125.1

         126.6

         136.0

         142.4

           71.9

           71.9

           71.9

           36.0

           36.0

         104.5

         121.4

         123.4

         124.9

         126.3

         135.8

         142.1

           71.8

           71.8

           71.8

           35.9

           35.9

         104.7

         121.2

         123.2

         124.6

         126.1

         135.5

         141.8

           71.6

           71.6

           71.6

           35.8

           35.8

         104.9

         121.0

         123.0

         124.4

         125.8

         135.3

         141.6

           71.5

           71.5

           71.5

           35.7

           35.7

         105.1

         120.7

         122.7

         124.2

         125.6

         135.0

         141.3

           71.4

           71.4

           71.4

           35.7

           35.7

         105.3

         120.5

         122.5

         123.9

         125.4

         134.8

         141.0

           71.2

           71.2

           71.2

           35.6

           35.6

         105.5

         120.3

         122.3

         123.7

         125.1

         134.5

         140.8

           71.1

           71.1

           71.1

           35.5

           35.5

         105.7

         120.1

         122.0

         123.5

         124.9

         134.2

         140.5

           71.0

           71.0

           71.0

           35.5

           35.5

         105.9

         119.8

         121.8

         123.2

         124.6

         134.0

         140.2

           70.8

           70.8

           70.8

           35.4

           35.4

         106.1

         119.6

         121.6

         123.0

         124.4

         133.7

         140.0

           70.7

           70.7

           70.7

           35.3

           35.3

         106.3

         119.4

         121.4

         122.8

         124.2

         133.5

         139.7

           70.6

           70.6

           70.6

           35.3

           35.3

         106.5

         119.2

         121.1

         122.5

         123.9

         133.2

         139.4

           70.4

           70.4

           70.4

           35.2

           35.2

         106.7

         118.9

         120.9

         122.3

         123.7

         133.0

         139.2

           70.3

           70.3

           70.3

           35.1

           35.1

         106.9

         118.7

         120.7

         122.1

         123.5

         132.7

         138.9

           70.2

           70.2

           70.2

           35.1

           35.1

         107.1

         118.5

         120.4

         121.8

         123.2

         132.5

         138.7

           70.0

           70.0

           70.0

           35.0

           35.0

         107.3

         118.3

         120.2

         121.6

         123.0

         132.2

         138.4

           69.9

           69.9

           69.9

           34.9

           34.9

         107.5

         118.0

         120.0

         121.4

         122.8

         132.0

         138.1

           69.8

           69.8

           69.8

           34.9

           34.9

         107.7

         117.8

         119.8

         121.2

         122.6

         131.8

         137.9

           69.6

           69.6

           69.6

           34.8

           34.8

         107.9

         117.6

         119.6

         120.9

         122.3

         131.5

         137.6

           69.5

           69.5

           69.5

           34.8

           34.8

         108.1

         117.4

         119.3

         120.7

         122.1

         131.3

         137.4

           69.4

           69.4

           69.4

           34.7

           34.7

 

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and the

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