Author Topic: Coax Cable Selection for HP 37203A HPIB Extender  (Read 272 times)

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Offline ZGoodeTopic starter

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Coax Cable Selection for HP 37203A HPIB Extender
« on: August 07, 2024, 02:38:57 am »
Hi y'all,
I'm trying to figure out what kind of coax cable to use for my pair of 37203A.  The manual says to use coax with 75ohm impedance and a resistance of at most 4ohm/100m.  The obvious choice seems like it would be RG6, and I was planning on just taking a 100ft antenna extension cable, but from what I could find is that most RG6 likely does not meet the resistance specification.  What (cheaper) cable types should I be looking at here?
 

Offline squadchannel

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Re: Coax Cable Selection for HP 37203A HPIB Extender
« Reply #1 on: August 07, 2024, 02:48:41 am »
The manual specifies Belden 9248 as the recommended cable; DCR is 6.4ohm/1000ft, so I assume it will work.
 
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Offline ZGoodeTopic starter

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Re: Coax Cable Selection for HP 37203A HPIB Extender
« Reply #2 on: August 07, 2024, 03:03:50 am »
Oh, nice.  I don't know how I missed that.  What page did you see that on?  The specs I was looking at were on page 3-2.
 

Offline squadchannel

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Re: Coax Cable Selection for HP 37203A HPIB Extender
« Reply #3 on: August 07, 2024, 03:08:05 am »
Oh, nice.  I don't know how I missed that.  What page did you see that on?  The specs I was looking at were on page 3-2.

Note 2 below in Table 1-1 and 3-1.

 

Offline stj

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Re: Coax Cable Selection for HP 37203A HPIB Extender
« Reply #4 on: August 07, 2024, 01:27:30 pm »
check sattelite cable such as CT100
the core conductor and air-space insulator are pretty much the same as RG6 but the outer shielding is much better.
copper braid followed by copper foil.
 


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