Re: Bird 43 wattmeter on 23cms

Phil Guttridge G3TCU

Hi Phil,

I tried to go down this route, having read several posts in the past to say that the E (400-1000MHz) slugs, particularly the higher power ones, were almost flat up to 1296MHz.
I bought a new 500E slug from the US and found it read a long way out from what I expected. So I didn't know whether I had a dud slug or in fact the folk lore was unreliable.
I took the slug to a local who has a collection of Bird 43s and slugs and a QRO 70cm system. I found that my 500E read correctly at 432MHz. It seems that the recent/cheaper slugs are made in China and the E range ones do not stretch to 1296MHz. These slugs are recognisable by there black finish. The earlier US made (white face) "E" slugs do seem to reach 1926MHz. I have yet to get hold of a white one!

73, Phil G3TCU.

On 28/03/2014 20:35, mike wrote:

Hi Phil,
I use a 25watt 400-1000Mhz slug all the time, it seems to in the correct ballpark, and is as least as accurate as my Diawa CN-650
Mike G6TRM
----- Original Message -----
From: phil@...
Sent: Friday, March 28, 2014 8:17 PM
Subject: [ukmicrowaves] Bird 43 wattmeter on 23cms


I'm in the market for a Bird 43 or similar for use on 23cms pwr/swr. Theres usually a couple on Ebay at any time. I've seen slugs for 400-1000Mhz at 5w 25w and 250w. Does anyone know if the 400-1000Mhz range are ok at 1296mhz as to make little difference?

Phil G3YPQ

This email is free from viruses and malware because avast! Antivirus protection is active.

Join to automatically receive all group messages.