A
A-4 Flex Max901e 1GHz Trunk and Bridger Amplifiers 1502154 Rev D
Table A.4 FlexNet/Flex Max Trunk Model Options Comparison
Options 700 Series 800 Series 900 Series FM901 Series FM901e Enhanced
Spacing (dB) Trunk: 28 (750 MHz)
Trunk: 29.5 (750 MHz)
Trunk: 31 (550 MHz)
Bridger: 37 (750 MHz)
Bridger: 37 (550 MHz)
T r u nk : 2 8 ( 7 50 M H z )
Trunk: 30 (862 MHz)
Bridger: 37 (750MHz)
Bridger: 38 (862MHz)
Trunk: 28 (750 MHz)
Trunk: 30 (862 MHz)
Trunk: 31 (750 MHz)
Bridger: 37 (750 MHz)
Bridger: 39 (862 MHz)
Trunk: 33 (1002 MHz)
Bridger: 43 (1002 MHz)
Trunk: 33 (1002 MHz)
Trunk: 30 (862 MHz)
Bridger: 43 (1002 MHz)
Bridger: 40 (862 MHz)
Bandwidth (MHz) 750
550
750
862
750
862
1002
1002
1
1. For 862 MHz operation, a cable EQ is required after the Port 4 output hybrid to provide the proper output tilt.
Factory
Equalization
(dB @ HF)
11 (750 MHz)
11 (550 MHz)
11 (750 MHz)
12 (862 MHz)
11 (750 MHz)
17 (750 MHz)
18 (862 MHz)
Trunk: 13 (1002 MHz)
Bridger: 23 (1002 MHz)
13 (1002 MHz)
Frequency Split (MHz) 42/54
40/54
55/70
42/54
40/54
42/54
65/85
55/70
42/54
2
2. The frequency dependent assemblies are bench replaceable to upgrade frequency split of amplifier at a later date if required.
42/54
2
65/85
2
55/70
2
Transfer Linearization No No Yes No
3
3. GaAs hybrids provide TL performance at TL operating levels.
No
3
ALC Operation
(NTSC/QAM)
NTSC only
4
4. ALC may operate on a QAM channel. This depends on the level of the QAM signals. Not recommended.
NTSC only
4
NTSC only
4
NTSC & QAM
5
5. The ALC PAD can be adjusted to compensate for the lower QAM signal.
NTSC & QAM
5
Frequency Control
(MHz)
Manual
439.25
499.25
451.25
Manual
439.25
499.25
423.25 471.25
427.25 495.25
439.25 499.25
451.25
439.25
499.25
423.25 471.25
427.25 495.25
439.25 499.25
451.25 609.00
711.00
Return (dB) Passive
14.5 (T) & 11 (B)
18.5
Passive
18
18 18
14.5 (T) & 11 (B)
18
Output Configuration 2 O/P (Fixed)
4 O/P (User Config)
4 O/P (User Config) 2 O/P (Fixed)
4 O/P (User Config)
4 O/P (User Config)
4 O/P (User Config)
Powering None
6
90V HE P/S (1.8 A)
90V HE P/S (2.3 A)
6. The 700 series used a 9-pin power supply cable, but a conversion kit is available to convert to the 12-pin FM901e module.
None
90 Volt HE P/S
None
90 Volt HE P/S
None
90 Volt HE P/S
None
90 Volt HE P/S
Power Passing 13 A (all Ports) 15 A (P1, P3, P4 & P6)
13 A (P2 & P5)
15 A (P1, P3, P4 & P6)
13 A (P2 & P5)
15 A (P1, P3, P4 & P6)
13 A (P2 & P5)
15 A (P1, P3, P4 & P6)
13 A (P2 & P5)
Housing None
6-Port (STD)
6-PT 90º Access
None
6-Port (STD)
6-PT 90º Access
None
4-Port (ITP)
4-Port (ETP)
6-Port (ITP)
6-Port (ETP)
4-Port 90º (ITP)
4-Port 90º (ETP)
None
6-Port (ITP)
6-Port (ETP)
6-Port 90º (ITP)
6-Port 90º (ETP)
6-Port Bypass (ETP)
None
6-Port (ITP)
6-Port (ETP)
6-Port 90º (ITP)
6-Port 90º (ETP)
6-Port BP (ETP)
Housing Finish Standard
Corrosion Protection
Standard
Corrosion Protection
Standard
Corrosion Protection
Standard
Corrosion Protection
Standard
Corrosion Protection
Testpoint Access External Only
7
7. The balance testpoint is internal only.
External Only
7
Internal
8
External
8
8. Only Forward testpoints can be either internal or external. Return testpoints are always internal.
Internal
8
External
8
Internal
8
External
8
Testpoint Value (d B) –25 –20
–25
–20
–25
–20 –20
–25
Number of Forward
Te st po in ts
6 (Ports)
9
1 (Balance)
9
9. Bi-directional port testpoints. Balance testpoint is directional coupler type.
6 (Ports)
9
1 (Balance)
9
3 (P1, P2/P3, P5/P6)
10
10. Separate Forward and Return directional coupler testpoints.
3 (P1, P2/P3, P5/P6)
11
11. Combined directional coupler Forward and Return testpoints.
3 (P1, P2/P3, P5/P6)
11
Number of
Return Testpoints
6 (Ports) 6 (Ports)
1 (Balance)
3 (P1, P2/P3, P5/P6) 3 (P1, P2/P3, P5/P6) 3 (P1, P2/P3, P5/P6)
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