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The 4S2 does not provide trigger pick-off. The 4S2A provides trigger pick-off. | The 4S2 does not provide trigger pick-off. The 4S2A provides trigger pick-off. | ||
The 4S2 and 4S2A front panels look the same, | |||
but they use different GR-874 input connectors. | |||
The 4S2 uses a short airline unique to the 4S2. | |||
The 4S2A uses the connector-to-board system described in US Patent 3,426,311, | |||
and has some parts in common with the [[3T7]]. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | DC to 3.9 GHz }} | {{Spec | Bandwidth | DC to 3.9 GHz }} |