Dear Forum readers / contributors..... I have an interesting, yet possibly crazy, idea for using 450 ohm ladder line and would like to poll the expertise of amateurs in the forums here. Preface: I have been licensed for only 4 + years and have only been "active" for about 1 of those years. I have done a little experimenting with wire antennas, home made verticals, feed line, and such. I have a fair amount of failures that have lead to enlightening successes with antennas which gives me more confidence to try new (to me) things in the realm of antennas. Here comes the crazy idea..... I am currently tip toeing back into the radio world and have become very interested in vhf packet mode. I have a Raspberry Pi, TNC-PI, and an older Icom IC-228H radio. This is connected to a rather disgraceful piece of RG-8X to a home built DBJ-2 design vertical vhf antenna about 55' in the air, supported by rope on a tree limb. I have recently come across some short (20'-40') pieces of LMR-600 but don't want to use too many "splice" connectors if I can avoid it. However, I have plenty of 450 ohm ladder line and was curious how to implement it's use with my current antenna. I know it's possible to merely solder a PL-259 or N type connector on the antenna end of the ladder line, but am curious as to the dangers of doing the same on the radio end. I understand that 50 ohms to 450 ohms is an issue and can usually be resolved with a balun on the antenna end, or by means of a tuner with a balun built in. Yet, I can find no definitive information on either a vhf tuner with such termination, nor the possible high current dangers with using a standard balun right at the radio. So, do any of you fine folks out there have any helpful information about my current crazy idea? I am looking for mainly safety issues because experimenting can usually answer the functionality questions in most things amateur radio. Thank you all in advance!