I've done a fair bit of this, here's a bit of input based on the things I learned:
- You don't say how many weeks you are running for? But 65 ads a week is an average of almost 10 a day, self evidently, which is quite a lot, especially if the ad is the same, and more so if it runs for a few weeks. It could become boring for the listener. However a campaign of one week is really a waste of time. You need at least a four week campaign to get enough repeat listens for the message to go in. I would prefer 200 over two weeks, not one. Better still, 400 over four weeks.
- If you adopt that, then you will need up to four ads recorded, over a common theme, which you either rotate through the whole campaign; or run sequentially one week after another.
- Most local radio stations will admit, if pushed, that their core listeners are daytime. Hardly anyone listens after drivetime, so you really need to get from them how many ads you are going to get in peak (breakfast, drivetime); daytime; and low (evening/night). Then work up the costs against their ratecard.
- Make sure you have a memorable telephone number. Really memorable (2 x 3 digits eg 678 678) . Make sure your website is tip top and, again, a memorable url - and include it in the ad.
- Radio is much better if backed up with hard copy ads of another form; either local paper, local free magazines (but I would say that..), or, as it is B2B, a targeted mailshot/leaflet campaign. All of this should be on the same theme as your radio campaign so the message is reinforced.
- 30 seconds is not a lot. You will almost certainly try to put too much in the ad. I have used, to good effect, a graduated campaign, which has say week 1&2 @ 40 seconds, week 3 @ 30 seconds and week 4 @ 20 seconds, the latter being a cut-down version of the previous ads.
- As with anything, a bit of prior research is useful. Have you listened to the station? Are there other B2B businesses already advertising? If so try to speak to them to ask how it is working. Do you know their target audience? Are the decision-makers you are trying to reach listening to it? Or are their admin/despatch managers?
- do they have a business programme which you can be interviewed on? Do you have any content at all which would be useful for them to feature as editorial? Can you sponsor an editorial slot eg the business news afterwards to keep the momentum?
Good luck with it whatever you decide to do.