Antenna Kit Differences

[henryg]

Hello. I have 2 Motorola Antenna Kits; one HAD4008A, 152-162 range and one HAD4009A, 162-174 range. Other than the obvious difference, frequency range, is their any other difference between the two? I don't have them in front of me right now, but how could I tell them apart if I didn't know the difference? Thanks in advance. Henry

[motorola_otaku]

Length of the antenna whip. Generally speaking, lower in frequency equals longer in length.

[AEC]

Aside from the whip length diffference for the differing frequencies, the kits are identical in all other respects.

[RadioSouth]

While where on it anyone get why the low split VHF 1/4 wave has that removable washer for impedance matching but gets removed when used with mid and high split whips ?

[Astro Spectra]

Slightly OT: there is the PCTEL MWV1365S 136-174 MHz 38 MHz 1/4 whip that has a base compensation network that offers the same gain as a normal 1/4 but covers the whole VHF band without tuning.

[Will]

While where on it anyone get why the low split VHF 1/4 wave has that removable washer for impedance matching but gets removed when used with mid and high split whips ?

That washer matches the impedance at the low range in the base/antenna mount. AKA large button NMO antenna mount.