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Help in identifing this items use
Posted: Thu Jul 01, 2004 7:22 am
by bnn121
Could somebody shed some light on what this would be used for...other than the obvious...Meaning. I see that its a tunning device for low-band.
Is there any use for something like this anymore?
I have not tested it...its still in the plastic bag.
Posted: Thu Jul 01, 2004 7:31 am
by RadioSouth
One of the most important factors would be it's power rating which isn't shown as most low band users use pretty high power 60-110 watts and beyond in the mobiles. If this won't handle this type of power it's pretty
useless. Even if it will do the power it's a mediocre alternative to resonant tuning the antenna rather than inserting this tuner in-line and tricking the radio into seeing 50 ohms. Looks like a good item for EBay !
Posted: Thu Jul 01, 2004 7:35 am
by RadioSouth
May have been part of a cowl mount disguise antenna which wouldn't be efficient but a solution to not being able to mount any other antenna type on the vehicle.
Posted: Thu Jul 01, 2004 7:50 am
by ExKa|iBuR
Hmm. You could make sure your CB antenna is perfectly matched!
-Mike
Posted: Thu Jul 01, 2004 3:34 pm
by mike m
sure looks like the old BROADBAND ANTENNA MATCH, it went with the Diplex ANTENNA MANUAL which had various lengths of coax on a row/column chart that let you select a low and high range output on the antenna port side, these two coaxes then split and went to 2 antennas.
It was used with 2 low band antennas on the low band syntor X/9000 radios. The BROADBAND MATCH (thing in this PIX) basically lengthened the operating bandwidth range of one of the antennas. You could do something like 29 to 34 and 40 to 50 MHZ on a syntor X/9000 without the need to swap antennas or retune anything.
Mike
Posted: Thu Jul 01, 2004 5:46 pm
by Mike B
The Diplex antenna does not use any match hardware enclosure. It used a T connector with two pieces of coax and two antennas, each coax/antenna combination cut for a different frequency. The coax and antenna was the tuning match itself.
The Broadband Antenna Match used a HAB1004A, HAB1005A, HAB1008A, HAB1010A or HAB1012A antenna match. These are all in a cylindrical housing with no external adjustments (at least according to my manual).
Sorry, I can not identify the unit. It might be for tuning a non-resonate antenna (like a disguise antenna as mentioned before) over a narrow frequency range, or it might be for broadband applications????