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Reviews For: HiPermite

Category: Filters, Audio: (DSP and others)

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Review Summary For : HiPermite
Reviews: 13MSRP: 19
Description:
Narrow CW audio filter kit.
Product is in production
More Info: http://www.4sqrp.com/HiPerMite.php
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
00135
K6WHP Rating: 2013-03-22
Great Bang for the Double Sawbuck Time Owned: 0 to 3 months.
As with others, I stumbled across this on the The Four State QRP Group web site and ordered it. I was not sure about whether these were still available or not so, the next afternoon, I sent Dennis Gaskill to see if he got my order and were these still available, etc.

Imagine my surprise when I got an almost immediate response saying that my order had just shipped. It arrived yesterday (03-21-2013) and was assembled in an evening!

The resulting product is very good -- although I still have more testing to do as 40-30-20-15-10 were dead when I wrapped up work on the unit. What few CW signals I did hear benefited greatly form having this unit in line.

A caveat to new builders: some of the caps are non-conventionally marked but the pictures of assembled units help to make this a non-issue. Overall, the components are very good and the PCB is exceptional!

I constructed mine with a 100K pot in lieu of R12 and R13 so I could have an on-board volume control but, at second thought, I just might hard wire the fixed resistors in place and let the radio do the work. The LM386 it controls will provide ear-splitting din however, in case you're wondering.

My sincere thanks to Dennis and the Four State QRP crowd for a real winner!
NZ0T Rating: 2012-12-09
Excellent filter at a great price Time Owned: 0 to 3 months.
I got one of these neat little filters to install in my Ten Tec 1330 30M QRP transceiver which has always suffered a bit with selectivity. The Hi-Per-Mite was just what I needed. It is inexpensive and there is excellent support from Four States QRP Group and the Yahoo group for the HPM. The filter is an easy build and there many ways it can be configured as an external filter or internally like I sis with the 1330. I highly recommend this filter!
KE7WAV Rating: 2012-09-19
Awesome Value Time Owned: 0 to 3 months.
Great kit for a fantastic price! I saw a video on YouTube and decided to go for it. I built the kit in a little over an hour and it went together without any troubles, worked great the first time. It is a great narrow filter at about 200hz. It was a great kit to build even for a more novice builder. I love using it and it has dramatically improved the performance of my HW-8.