I realize that the investment of a proper crimping tool and dies for UHF is an investment of not insignificant proportions. But compared to the investment in a modern SS transceiver, it's a small pri
I wish they were all N or HN or DIN Connectors. I have seen some pl259, and even N connectors do ugly things under load, admittedly more at higher frequencies. Commercially we are using DIN Connector
Our club station (N2MO) is migrating to 7/16 DIN on the patch bays, feedlines, and baluns. Even the feeds for the EME antenna are being converted to 7/16 DIN. The driver is cost as there is a abundan
At 1800W an N gets barely warm on 144 MHz and a bit warmer at 400W on 432. The combined pair of Eimac cavities at 500W gets decidely toasty on 903 (-; These are all silver plated USA mil-spec. A simi
Both. See the family of curves in the ARRL Handbook for excess attenuation due to mismatch, which has been in every edition of the handbook since I've been buying it (the 50s), and which I've confirm
Speaking of connector loss, the mismatch loss that a connector may provide is only valid when the system generator is a fixed value and there is no re-reflection of reflected power at the generator.
Larry is correct. Mismatch loss does not necessarily involve a feed line. Mismatch loss is the loss in dB of the power delivered to a load that is not conjugately matched to the source compared to th
I sold them for fifty cents each at hamfests. Jim At one time I had bought a few of those offshore right angle UHF connectors... and they caused no end of grief from day1 Heres what you do with any j
These are miniscule. The loss figures are for the maximum frequency. Even on 144 and 440 I may have as many as a dozen connectors from the exciter, amp, top and bottom of the tower, power dividers an