802.11b and 802.11g wireless access points are spread spectrum, so if they're operating on a channel that includes your frequency, they'll elevate the noise floor somewhat. If you're in a quiet area and trying to work 2.4 GHz weak signal or EME, the increase in the noise floor may be fairly significant. Any spurs they generate will probably tend to mirror the spread-spectrum nature of the primary operating frequency. 802.11n channels are somewhat wider but still on 2.4GHz.

It all depends on how significant the impact is on your reception. 802.11a, obviously, will be out of the ham bands, and 802.11b channels 7 and up are also out of the band (although they can pump your AGC if you don't have fairly tight front end filtering on your LNB) andat least one manufacturer has gone from defaulting their 802.11b from channel 1 to channel 11 much to my delight.

(Some 802.11b/g routers also use "automatic" channel selection, which means they scan the channels when they start up and pick a relatively clear one. If for some reason you're transmitting on frequencies that correspond to low numbered channels, most of these WAP's will tend to avoid your frequency even when you're listening .. :) .. just saying ..)

On Jul 5, 2007, at 12:44 PM, Tony wrote:

All:

Just about to install a wireless router to replace a hardwire system and was wondering if they tend to produce stronger birdies on HF/VHF than hardwire? If so, are some wireless brands better than others?

Thanks,

Tony K2MO